Genomes and Genes
Summary: Pieces of glass or other transparent materials used for magnification or increased visual acuity.
Publications204 found, 100 shown here
- Space dosimetry with the application of a 3D silicon detector telescope: response function and inverse algorithmTamás Pázmándi
KFKI Atomic Energy Research Institute, H 1525 Budapest, P O Box 49, Hungary
Radiat Prot Dosimetry 120:401-4. 2006..The device will be able to determine absorbed dose and dose equivalent of the space radiation...
- On wave-breaking free fiber lasers mode-locked with two saturable absorber mechanismsAxel Ruehl
Laser Zentrum Hannover e V, Hollerithallee 8, 30419 Hannover, Germany
Opt Express 16:8181-9. 2008..The impact of the modulation depth and the non-saturated losses is discussed via comparative measurements with different saturable Bragg reflectors...
- Wheel-chair driving improvement following visuo-manual prism adaptationSophie Jacquin-Courtois
Espace et Action, UMR S 534, INSERM UCBL, Bron, France
Cortex 44:90-6. 2008..The potential implications of prism adaptation for the rehabilitation of unilateral neglect are highlighted by the long duration of improvement obtained after a single adaptation session...
- Analyzer-based x-ray phase-contrast microscopy combining channel-cut and asymmetrically cut crystalsM G Hönnicke
LORXI, Departamento de Fisica, Universidade Federal do Parana, Caixa Postal 19091, 81531 990 Curitiba, Parana, Brazil
Rev Sci Instrum 78:113708. 2007..Moreover, thanks to the combination with the nondispersive ABI setup, the diffraction-enhanced x-ray imaging algorithm could be applied...
- Magnifying lenses assisted nerve-sparing radical hysterectomy and prevention of nerve plexus traumaG Mantzaris
1st Department of Obstetrics and Gynecology, Gynecologic Oncology Unit and Urogynecology Unit, University of Athens, Alexandra Hospital, Athens, Greece
Int J Gynecol Cancer 18:868-75. 2008..were to present a new approach for nerve-sparing radical hysterectomy (NSRH) with the assistance of magnifying lenses and to describe the differences in autonomic nerve plexus trauma between NSRH type III and conventional radical ..
- Long-lasting amelioration of visuospatial neglect by prism adaptationFrancesca Frassinetti
Dipartimento di Psicologia, Universita degli Studi di Bologna, Bologna, Italy
Brain 125:608-23. 2002..Seven patients with right hemisphere lesion and left visuospatial neglect were treated with prismatic lenses in twice-daily sessions over a period of 2 weeks...
- Prism adaptation aftereffects in stroke patients with spatial neglect: pathological effects on subjective straight ahead but not visual open-loop pointingMargarita Sarri
UCL Institute of Cognitive Neuroscience, University College London, 17 Queen Square, London, WC1N 3AR, UK
Neuropsychologia 46:1069-80. 2008..Future studies of possible rehabilitative impact from prisms upon neglect may need to consider carefully how to measure prism adaptation per se, separately from any impact of such adaptation upon manifestations of neglect...
- Prism adaptation can improve contralesional tactile perception in neglectA Maravita
Institute of Cognitive Neuroscience, University College, London, UK
Neurology 60:1829-31. 2003..visuospatial neglect and tactile extinction underwent 10-minute application of 20 degrees right-shifting prismatic lenses during pointing...
- Prism adaptation and unilateral neglect: review and analysisGordon M Redding
Department of Psychology, Illinois State University, Campus Box 4620, Normal, IL 61790 4620, USA
Neuropsychologia 44:1-20. 2006..Investigation of therapeutic prism adaptation requires methods that permit identification of both the calibration dysfunction and ameliorating realignment...
- Achieving high focusing power for a large-aperture liquid crystal lens with novel hole-and-ring electrodesChi Wei Chiu
Department of Electrical and Control Engineering, National Chiao Tung University, Hsinchu, Taiwan
Opt Express 16:19277-84. 2008..The proposed design reduces the thickness of LC lens and is capable of achieving relative higher focusing power than past studies with lower applied voltage...
- Postoperative complications following vitrectomy for proliferative diabetic retinopathy with sew-on and noncontact wide-angle viewing lensesS R Virata
Department of Ophthalmology, University of North Carolina School of Medicine, Chapel Hill, USA
Ophthalmic Surg Lasers 32:193-7. 2001..To compare the occurrence of vitreous hemorrhages and retinal detachments following vitrectomy surgery with sew-on lenses to a noncontact wide-angle lens system...
- Micro-optical artificial compound eyesJ W Duparré
Fraunhofer Institute for Applied Optics and Precision Engineering, Jena, Germany
Bioinspir Biomim 1:R1-16. 2006..The artificial apposition compound eye can be considered as a simple imaging optical sensor while the cluster eye is capable of becoming a valid alternative to classical bulk objectives but is much more complex than the first system...
- Refractive state of tree shrew eyes measured with cortical visual evoked potentialsThomas T Norton
Department of Physiological Optics, School of Optometry, University of Alabama at Birmingham, 606 Worrell Building, Birmingham, AL 35294 4390, USA
Optom Vis Sci 80:623-31. 2003..To determine the refractive state of tree shrew eyes using visual evoked potentials (VEP's) recorded from primary visual cortex and compare the values with those obtained with streak retinoscopy and with an autorefractor...
- Colloidal lenses allow high-temperature single-molecule imaging and improve fluorophore photostabilityJerrod J Schwartz
Department of Bioengineering, Stanford University and Howard Hughes Medical Institute, Stanford, California 94305, USA
Nat Nanotechnol 5:127-32. 2010..8 K), the field has since advanced to include room-temperature observations, largely owing to the use of objective lenses with high numerical aperture, brighter fluorophores and more sensitive detectors...
- Mechanisms underlying neglect recovery after prism adaptationAndrea Serino
Dipartimento di Psicologia, Universita di Bologna, Italy
Neuropsychologia 44:1068-78. 2006....
- A generic camera model and calibration method for conventional, wide-angle, and fish-eye lensesJuho Kannala
Department of Electrical Engineering, University of Oulu, P O Box 4500, FIN 90014, Finland
IEEE Trans Pattern Anal Mach Intell 28:1335-40. 2006Fish-eye lenses are convenient in such applications where a very wide angle of view is needed, but their use for measurement purposes has been limited by the lack of an accurate, generic, and easy-to-use calibration procedure...
- Evaluation of a district-wide screening programme for diabetic retinopathy utilizing trained optometrists using slit-lamp and Volk lensesS A Hulme
Diabetes Centre, Whiston Hospital, Prescot and Rennie Eye Clinic, St Helens Hospital, St Helens, UK
Diabet Med 19:741-5. 2002..Optometrists offer flexibility but sensitivity and specificity of schemes have varied considerably, perhaps because of variability in screening methodology and that there is frequently no quality assurance programme...
- Posterior parietal cortex and the dissociable components of prism adaptationR Newport
School of Psychology, University of Nottingham, Nottingham NG7 2RD, UK
Neuropsychologia 44:2757-65. 2006..The data indicates that the ability to implement control strategies may not be necessary for successful adaptation to prisms. A proposed model for the role of posterior parietal cortex in prism adaptation is also presented...
- Prism adaptation changes perceptual awareness for chimeric visual objects but not for chimeric faces in spatial neglect after right-hemisphere strokeMargarita Sarri
Institute of Cognitive Neuroscience and Department of Psychology, University College London, London, UK
Neurocase 12:127-35. 2006..Prism therapy dramatically improved awareness for the identity of the left side of chimeric non-face objects, but had no effect on judging expressions for chimeric faces. The latter may thus be unique in showing no prism benefit...
- Selective modulation of scleral proteoglycan mRNA levels during minus lens compensation and recoveryJohn Thomas Siegwart
Department of Vision Sciences, School of Optometry, The University of Alabama at Birmingham, Birmingham, AL, USA
Mol Vis 13:1878-86. 2007..To better characterize the role of proteoglycans in scleral tissue remodeling during the development of minus lens induced myopia and during recovery in tree shrews...
- Mechanisms underlying visuo-spatial amelioration of neglect after prism adaptationValentina Angeli
Centro di Neuroscienze Cognitive, Cesena, Italy
Cortex 40:155-6. 2004
- Prism adaptation overcomes pseudoneglect for the greyscales taskAndrea M Loftus
School of Behavioural Science, University of Melbourne, Vic, Australia
Cortex 45:537-43. 2009..The findings demonstrate that a simple visuomotor task can alter the distribution of spatial attention for the greyscales task in normal participants...
- Disposable microscope objective lenses for fluorescence correlation spectroscopy using latex microspheresJerome Wenger
Institut Fresnel, Aix Marseille Universite, CNRS, 13397 Marseille, France
Anal Chem 80:6800-4. 2008..Viable FCS experiments at concentrations 1-1000 nM with different objectives costing less than $40 are demonstrated. This offers a simple and low-cost alternative to the conventional complex microscope objectives...
- Multifocal lenses compensate for chromatic defocus in vertebrate eyesR H Kröger
Anatomisches Institut, Eberhard Karls Universitat Tubingen, Germany
J Comp Physiol A 184:361-9. 1999..To solve this problem, fishes with irises unresponsive to light have developed lenses with multiple focal lengths...
- Eye movements tell only half the storyS Ferber
CIHR Group on Action and Perception, Department of Psychology, University of Western Ontario, London, Canada
Neurology 60:1826-9. 2003..PA modulates functions of the parietal lobe, such as eye movement control, but fails to influence the underlying mechanisms of neglect...
- Functional anatomy of the therapeutic effects of prism adaptation on left neglectJ Luaute
INSERM Unité 534, Espace et Action, 16, avenue du doyen Lepine, 69500 Bron, France
Neurology 66:1859-67. 2006..To investigate the anatomic substrates underlying the beneficial effect of prism adaptation in five patients with persistent left neglect following right stroke...
- Recovery of oculo-motor bias in neglect patients after prism adaptationValentina Angeli
Dipartimento di Psicologia, , Bologna, Italy
Neuropsychologia 42:1223-34. 2004..before and after PA were then compared to that of control neglect patients, who were wearing goggles with neutral lenses. Moreover, in order to provide normative data on ocular scanning behaviour during letter string reading, ..
- Removal of ghost images by using tilted element optical systems with polynomial surfaces for aberration compensationJeremy D Rogers
College of Optical Sciences, University of Arizona, 1630 East University Boulevard, Tucson, Arizona 85721, USA
Opt Lett 31:504-6. 2006..The nonrotationally symmetric polynomial surfaces correct aberrations caused by tilts. The complex lens surfaces are fabricated by using gray-scale lithographic patterning of hybrid solgel glass...
- Photon signal detection and evaluation in the adaptive optics scanning laser ophthalmoscopeYuhua Zhang
School of Optometry, University of California, Berkeley 94720 2020, USA
J Opt Soc Am A Opt Image Sci Vis 24:1276-83. 2007..The study presents a practical strategy that can be used to test the photodetector for either initial evaluation or subsequent performance in in-line inspection...
- Evanescent Bessel beam generation via surface plasmon resonance excitation by a radially polarized beamQiwen Zhan
Electro Optics Graduate Program, University of Dayton, Ohio 45469 0245, USA
Opt Lett 31:1726-8. 2006..The created evanescent Bessel beam may be used as a virtual probe for near-field optical imaging and sensing applications...
- Lens-focused transducer modeling using an extended KLM modelPierre Maréchal
François Rabelais University of Tours, LUSSI, ENIVL, BLOIS Cedex, France
Ultrasonics 46:155-67. 2007....
- Laser-Doppler velocity profile sensor with submicrometer spatial resolution that employs fiber optics and a diffractive lensLars Büttner
Professorship for Measuring and Testing Techniques, Dresden University of Technology, D 01062 Dresden, Germany
Appl Opt 44:2274-80. 2005..Using diffraction optics and fiber optics, we achieved a miniaturized and robust velocity profile sensor for highly resolved velocity measurements...
- Two dimensional photoacoustic imaging based on an acoustic lens and the peak-hold technologyHanchao Zhang
School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, People s Republic of China
Rev Sci Instrum 78:064902. 2007..Compared to other methods, this PA imaging system can acquire the PA images more rapidly without any complex algorithms, and it may provide a more convenient method for future in vivo noninvasive imaging of tissues and clinic diagnosis...
- Effect of aberrations and scatter on image resolution assessed by adaptive optics retinal section imagingJustin M Wanek
Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago 60612, USA
J Opt Soc Am A Opt Image Sci Vis 24:1296-304. 2007..The findings of the current study suggest that AO imaging systems can potentially improve image resolution in aging eyes with increased aberrations and scatter...
- Three-dimensional nonlinear optical endoscopyLing Fu
J Biomed Opt 12:040501. 2007....
- Microlens-array-based exit-pupil expander for full-color displaysHakan Urey
Department of Electrical Engineering and Optical Microsystems Laboratory, Koc University, Sariyer, 34450 Istanbul Turkey
Appl Opt 44:4930-6. 2005..Three MLA fabrication technologies, including gray-scale lithography, photoresist reflow, and isotropic etching, are evaluated and compared for an EPE application...
- Analysis of the angular acceptance of surface plasmon Bragg mirrorsMaría Ujué González
ICFO Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860, Castelldefels Barcelona, Spain
Opt Lett 32:2704-6. 2007..This effect, which can considerably affect the design of devices based on these elements, is shown to be the consequence of the decrease of the bandgap width with increasing incidence angle...
- Single-view-point omnidirectional catadioptric cone mirror imagerShih Schön Lin
Electrical and Systems Engineering Department, University of Pennsylvania, Philadelphia 19104, USA
IEEE Trans Pattern Anal Mach Intell 28:840-5. 2006..We show its merits and weaknesses and how to build a workable system...
- Role of optics in the accuracy of depth-from-defocus systemsIlya Blayvas
Computer Science Department, Technion Israeli Institute of Technology, Haifa 32000, Israel
J Opt Soc Am A Opt Image Sci Vis 24:967-72. 2007..We also provide guidelines for the design of new depth-from-defocus systems in compliance with predefined specifications by choosing the appropriate optics...
- In vivo fluorescent imaging of the mouse retina using adaptive opticsDavid P Biss
Schepens Eye Research Institute, Boston, Massachusetts 02114, USA
Opt Lett 32:659-61. 2007....
- Two-photon excitation fluorescence microscopy with a high depth of field using an axiconPascal Dufour
, , , Canada
Appl Opt 45:9246-52. 2006..Thus axicon-based two-photon microscopy has been shown to yield a high-resolution projection image of a sample with a single 2D scan of the laser beam while maintaining the improved tissue penetration typical of two-photon microscopy...
- Numerical parametric lens for shifting, magnification, and complete aberration compensation in digital holographic microscopyTristan Colomb
Ecole Polytechnique Federale de Lausanne, Switzerland
J Opt Soc Am A Opt Image Sci Vis 23:3177-90. 2006The concept of numerical parametric lenses (NPL) is introduced to achieve wavefront reconstruction in digital holography...
- Surface-plasmon microscopy with a two-piece solid immersion lens: bright and dark fieldsJing Zhang
Applied Optics Group, School of Electronic Engineering, University of Nottingham, UK
Appl Opt 45:7977-86. 2006..Finally, we introduce a simple Green's function model that illustrates the key features of both bright-field and dark-field surface-plasmon imaging...
- Protecting a lens with airTai Shan Liao
Instrument Technology Research Center, National Applied Research Laboratories, Taiwan, Republic of China
Rev Sci Instrum 78:056101. 2007..quot; An experimental wireless video camera debris deflecting system was realized and performed to verify the concept. Functional tests have been successfully verified...
- High-resolution beam steering using microlens arraysAta Akatay
Department of Electrical Engineering, Koc University, Sariyer, Istanbul, Turkey
Opt Lett 31:2861-3. 2006..Theoretical, numerical, and experimental results demonstrating the high-resolution imaging concept using microlens arrays are presented...
- Compact multimodal adaptive-optics spectral-domain optical coherence tomography instrument for retinal imagingChad E Bigelow
Physical Sciences Inc, Andover, MA 01810, USA
J Opt Soc Am A Opt Image Sci Vis 24:1327-36. 2007..In human volunteer testing, we observed up to an 8 dB increase in OCT signal and a corresponding lateral resolution of <10 microm as a result of AO correction...
- Resolution of 90 nm (lambda/5) in an optical transmission microscope with an annular condenserArnold Vainrub
Department of Anatomy, Physiology and Pharmacology, College of Vetirenary Medicine, Auburn University, Auburn, Alabama 36849, USA
Opt Lett 31:2855-7. 2006..This explanation is supported by an excellent accord of calculated and measured diffraction patterns for a 50 nm radius disk...
- Hybrid reflecting objectives for functional multiphoton microscopy in turbid mediaDejan Vucinic
Howard Hughes Medical Institute, Computational Neurobiology Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
Opt Lett 31:2447-9. 2006..We model the performance of one such design optimized for a typical brain-imaging setup and show that it can greatly outperform objectives commonly used for this task...
- Double-pass rotary mirror array for fast scanning optical delay lineLinbo Liu
Graduate Programme in Bioengineering, National University of Singapore, Singapore
Appl Opt 45:5426-31. 2006..Such a device is ideal for real-time optical coherence tomography, optical Doppler tomography, and spectroscopic optical coherence tomography...
- Large-dynamic-range Shack-Hartmann wavefront sensor for highly aberrated eyesGeunyoung Yoon
University of Rochester, Department of Ophthalmology, Biomedical Engineering and Center for Visual Science, New York 14627, USA
J Biomed Opt 11:30502. 2006..The feasibility of the sensor was demonstrated by measuring the higher order aberrations of a custom-made phase plate and human eyes with and without the plate...
- Large-field-of-view, modular, stabilized, adaptive-optics-based scanning laser ophthalmoscopeStephen A Burns
School of Optometry, Indiana University, Bloomington 47405, USA
J Opt Soc Am A Opt Image Sci Vis 24:1313-26. 2007..The retinal image was stabilized to within 18 microm 90% of the time. Stabilization was sufficient for cross-correlation techniques to automatically align the images...
- Sharp-focusing Bragg-Fresnel zone plate with Laue diffraction geometryLevon Haroutunyan
Yerevan State University, Alex Manoogian St 1, Yerevan 375025, Armenia
J Synchrotron Radiat 13:343-5. 2006..This is distinct from an analogous case of ordinary phase zone plates...
- Fast-scanning two-photon fluorescence imaging based on a microelectromechanical systems two- dimensional scanning mirrorWibool Piyawattanametha
James H. Clark Center for Biomedical Engineering and Sciences, Stanford University, Stanford, California 94305, USA
Opt Lett 31:2018-20. 2006..Using such scanners we demonstrated two-photon microscopy and microendoscopy with fast-axis acquisition rates up to 3.52 kHz...
- Absorption spectra of dye solutions measured using a white light thermal lens spectrophotometerA Marcano O
Applied Optics Center, Delaware State University, Dover, Delaware 19901, USA
Appl Spectrosc 60:560-3. 2006..These differences can yield important applications of the device for the characterization of fluorescent materials...
- Light field and crosshair quality assurance test using a simple lens systemScott W Hadley
Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan 48109-0010, USA
Med Phys 33:930-2. 2006..Using a lens system the motion of the field light source and crosshair can be observed in sharp focus independently of one another as the collimator is rotated...
- Mirror slides for high-sensitivity cell and tissue fluorescence imagingEric Le Moal
Université Denis Diderot Paris VII, UMR 7162 CNRS, Laboratoire Matériaux et Phénomènes Quantiques, Paris Cedex, France
J Biomed Opt 12:024030. 2007....
- Design analysis of a high-resolution panoramic camera using conventional imagers and a mirror pyramidHong Hua
College of Optical Sciences, The University of Arizona, Tucson 85721, USA
IEEE Trans Pattern Anal Mach Intell 29:356-61. 2007..The analysis can be generalized and applied to other pyramid-based designs...
- Artificial ommatidia by self-aligned microlenses and waveguidesJaeyoun Kim
Berkeley Sensor and Actuator Center, Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720, USA
Opt Lett 30:5-7. 2005..75 degrees acceptance angle that is comparable to those found in nature. Using geometric and physical optics, we also investigate the relationship between angular sensitivity and the geometry of artificial ommatidia...
- 3D shape measurement of the aspheric mirror by advanced phase measuring deflectometryYan Tang
Department of Opto Electronic, Sichuan University, Chengdu 610064, China
Opt Express 16:15090-6. 2008..Furthermore, this method also has strong anti-noise ability. Computer simulations and preliminary experiment validate the feasibility of this method...
- Micro-optical polarizer with high efficiencyPatrick Ruffieux
University of Neuchâtel Institute of Microtechnology
Opt Express 16:2023-36. 2008..Combined with a patterned twisted nematic (TN) cell, allowing a rotation of only one polarization component, a polarizer with high efficiency (72,5% (measured) is realized. Simulations and measurements are presented...
- Correction of low order aberrations using continuous deformable mirrorsGleb Vdovin
Flexible Optical BV OKO Technologies, Röntgenweg 1, 2624 BD Delft, The Netherlands
Opt Express 16:2859-66. 2008....
- Ultrafast laser writing of homogeneous longitudinal waveguides in glasses using dynamic wavefront correctionC Mauclair
Laboratoire Hubert Curien, UMR 5516 CNRS, Université Jean Monnet, 42000 Saint Etienne, France
Opt Express 16:5481-92. 2008..The corrective process becomes increasingly important when laser energy has to be transported without losses at arbitrary depths, with the purpose of triggering mechanisms of positive refractive index change...
- Simultaneous measurement of refractive index and thickness by combining low-coherence interferometry and confocal opticsSeokhan Kim
Department of Information and Communications, Gwangju Institute of Science and Technology, 1 Oryong dong, Buk Gu, Gwangju, 500 712, Korea
Opt Express 16:5516-26. 2008..The average measurement errors of the first and the second methods were 0.123% and 0.061% in the geometrical thickness, 0.133% and 0.066% in the phase index, and 0.106% and 0.057% in the group index, respectively...
- A laser guide star wavefront sensor bench demonstrator for TMTOlivier Lardiere
AO Laboratory, Mechanical Engineering Department, University of Victoria, PO Box 3055 STN CSC, Victoria, BC, V8W 3P6, Canada
Opt Express 16:5527-43. 2008..This bench is not limited to SH-WFS and can serve as an LGS-simulator test bed to any other LGS-AO projects for which sodium layer fluctuations are an issue...
- Super resolution imaging by compensating oblique lens with metallodielectric filmsYanhui Zhao
State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, P O Box 350, Chengdu 610209, China
Opt Express 16:5697-707. 2008..Super resolution optical imaging can be obtained with uniform light intensity and tunable magnification by changing parameters of the structure. Design principles and examples are given and illustrated with numerical simulation...
- Data quality dependencies in microring-based DPSK transmitter and receiverLin Zhang
Department of Electrical Engineering, University of Southern California, Los Angeles, CA 90089, USA
Opt Express 16:5739-45. 2008..Transmission performance of the all-microring-based DPSK signal over a 70-km single mode fiber is compared to that of DPSK using a Mach-Zehnder modulator and a delay-line interferometer...
- High-resolution adaptive optics scanning laser ophthalmoscope with dual deformable mirrorsDiana C Chen
Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
J Opt Soc Am A Opt Image Sci Vis 24:1305-12. 2007....
- Design of oblate cylindrical perfect lens using coordinate transformationWei Wang
State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, P O Box 350, Chengdu 610209, China
Opt Express 16:8094-105. 2008..All the calculated results agree well with our mathematical derivations, thus verifying the coordinate transformation method in designing perfect lenses.
- Fluorescence multicolor hologram recorded by using a macrolens arrayNatan T Shaked
Department of Electrical and Computer Engineering, Ben Gurion University of the Negev, PO Box 653, Beer Sheva 84105, Israel
Opt Lett 33:1461-3. 2008..The 3-D reconstructed images from all the monochromatic holograms are composed into a single multicolor image of the 3-D scene. The proposed holographic technique is demonstrated by experiments...
- Polarization independent 4-stage OTDM multiplexer using plated GRIN lensLibo Cai
Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education, Beijing Universityof Posts and Telecommunications, Beijing 100876, PR China
Opt Express 16:12544-9. 2008..The results also show the advantages of our OTDM multiplexer such as the flexible output signal speeds at the output of different stages, the low insertion loss and the temperature and wavelength stability...
- Kaleidoscope modes in large aperture Porro prism resonatorsLiesl Burger
CSIR National Laser Centre, PO Box 395, Pretoria 0001, South Africa
Opt Express 16:12707-14. 2008..We also show that only stable resonators will produce these modes...
- Depth of field extension with spherical opticsPantazis Mouroulis
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA
Opt Express 16:12995-3004. 2008..88 lambda in terms of wavefront error, which is shown to be comparable to alternative techniques but without the use of special phase elements. The lens performance is azimuth-independent and achromatic over the visible range...
- Modified Gaussian influence function of deformable mirror actuatorsLinhai Huang
Institute of Optics and Electronics, Chinese Academy of Sciences P O Box 350, Shuangliu, Chengdu 610209, China
Opt Express 16:108-14. 2008..The result indicates that the modified Gaussian influence function provides much better performance in data fitting...
- I5S: wide-field light microscopy with 100-nm-scale resolution in three dimensionsLin Shao
Keck Advanced Microscopy Laboratory, Department of Biochemistry and Biophysics, University of California, San Francisco, California, USA
Biophys J 94:4971-83. 2008..in all three dimensions, by using structured illumination in a microscope that has two opposing objective lenses. Illumination light is split by a grating and a beam splitter into six mutually coherent beams, three of which ..
- Distance optical sensor for quantitative endoscopyAgnese Lucesoli
Universita Politecnica delle Marche, Dipartimento di Elettromagnetismo e Bioingegneria, Via Brecce Bianche, Ancona, Italy
J Biomed Opt 13:010504. 2008..It showed high sensitivity, providing correct and repeatable distance measurements on biological samples even in case of very low reflected power (down to 2 to 3 nW), with an error lower than 0.1 mm...
- High light field confinement for fluorescent correlation spectroscopy using a solid immersion lensA Serov
Institute for Biomedical Imaging, Optics, and Engineering of the Swiss Federal Institute of Technology EPFL, CH 1015 Lausanne, Switzerland
Biosens Bioelectron 20:431-5. 2004..In this case the FCS autocorrelation demonstrates a free 3D diffusion of dye molecules in a highly confined light field...
- Changes of optical properties of retroreflector installed in LHDT Akiyama
National Institute for Fusion Science, 322 6 Oroshi cho, Toki shi, Gifu 509 5292, Japan
Rev Sci Instrum 78:103501. 2007..The parallelism of the reflected beam to an incident one also deteriorated. The changes in the polarization angle and in the ellipticity of reflected light polarization were not observed from the visible to the far infrared range...
- Rhodium coated mirrors deposited by magnetron sputtering for fusion applicationsL Marot
Department of Physics, University of Basel, Klingelbergstrasse 82, CH 4056 Basel, Switzerland
Rev Sci Instrum 78:103507. 2007..Detailed optical characterizations of Rh-coated mirrors as well as results of erosion tests performed both under laboratory conditions and in the TEXTOR tokamak are presented in this paper...
- Wide-band acousto-optic deflectors with high efficiency for visible range fringe pattern projectorS Dupont
IEMN DOAE, UMR 8520, Le Mont Houy, 59313 Valenciennes Cedex 09, France
Rev Sci Instrum 78:105102. 2007..The spatial period of the interference fringes can be dynamically controlled over almost one decade by tuning the frequency of the acoustic carriers...
- Cover slip external cavity diode laserAdra V Carr
Department of Physics, University of Arizona, Tucson, Arizona, 85721, USA
Rev Sci Instrum 78:106108. 2007..This system is simple, economical, robust, and easy to use for spectroscopy, as we demonstrate with lithium vapor and lithium atom beam experiments...
- 4Pi spectral self-interference microscopyBrynmor J Davis
Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign, Urbana, Illinois 61801, USA
J Opt Soc Am A Opt Image Sci Vis 24:3762-71. 2007..Specifically, SSM is shown to be subject to the same resolution constraints as 4Pi microscopy...
- Combining flat crystals, bent crystals and compound refractive lenses for high-energy X-ray opticsS D Shastri
Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
J Synchrotron Radiat 11:150-6. 2004Compound refractive lenses (CRLs) are effective for collimating or focusing high-energy X-ray beams (50-100 keV) and can be used in conjunction with crystal optics in a variety of configurations, as demonstrated at the 1-ID undulator ..
- Active focus locking in an optically sectioning microscope utilizing a deformable membrane mirrorS P Poland
Institute of Photonics, SUPA, University of Strathclyde, Glasgow, Scotland, UK
Opt Lett 33:419-21. 2008..We were able to track focus over a 400 microm range (limited by the range of the piezomounted objective) with a rms precision on the focal depth of 0.31 microm +/- 0.05 microm...
- A new microscope optics for laser dark-field illumination applied to high precision two dimensional measurement of specimen displacementNaoki Noda
Department of Life Science, Graduate School of Arts and Sciences, The University of Tokyo, Komaba 3 8 1, Meguro, Tokyo 153 8902, Japan
Rev Sci Instrum 79:023704. 2008..For the microscopy, we used a laser beam and a pair of axicons (conical lenses) to get an optimal condition for dark-field observations...
- Pulsed-laser crossed-beam thermal lens spectrometry for detection in a microchannel: influence of the size of the excitation beam waistKhalil Abbas Ghaleb
Laboratoire des Sciences Analytiques, , Domaine Scientifique de la Doua, , 69622 Villeurbanne Cedex, France
Appl Spectrosc 58:1116-21. 2004..Moreover, small beams provide better spatial resolution and have allowed the measurement of flow velocities as low as 1 mm s(-1)...
- Potentiation of intraocular absorption and drug metabolism of N-acetylcarnosine lubricant eye drops: drug interaction with sight threatening lipid peroxides in the treatment for age-related eye diseasesMark A Babizhayev
Innovative Vision Products, Inc Delaware, USA
Drug Metabol Drug Interact 24:275-323. 2009..Morphological and biochemical techniques have revealed the regions in human cataractous lenses in which the plasma membrane derangement occurs as the primary light scattering centers which cause the observed ..
- Analysis of lipid peroxidation and electron microscopic survey of maturation stages during human cataractogenesis: pharmacokinetic assay of Can-C N-acetylcarnosine prodrug lubricant eye drops for cataract preventionMark A Babizhayev
Innovative Vision Products Inc, County of New Castle, Delaware 19810, USA
Drugs R D 6:345-69. 2005..biophysical techniques described in this study have shown that membrane derangement occurs in human cataractous lenses. The data suggest that these disruptions were globules, vacuoles, multilamellar membranes and clusters of highly ..
- [Cataract surgery in children]S Pavlovic
Klinika za ocne bolesti, Justus Liebig Univerzitet, Giessen
Med Pregl 53:257-61. 2000..Conventionally, optical correction is achieved by spectacles or contact lenses. The power of both spectacles and contact lenses can be readily adjusted to compensate for ocular growth...
- Multi-crystallin complexes exist in the water-soluble high molecular weight protein fractions of aging normal and cataractous human lensesK Srivastava
Department of Vision Sciences, University of Alabama at Birmingham, Worrell Bldg, 924 S 18th Street, Birmingham, AL 35294, USA
Exp Eye Res 87:356-66. 2008..held complexes that exist in the water-soluble high molecular weight (WS-HMW) protein fractions of normal human lenses of 20-year-old and 60- to 70-year-old, and in the age-matched 60- to 70-year-old cataractous lenses...
- [In vitro adherence of Staphylococcus epidermidis and Pseudomonas alcaligenes to intraocular lenses]Patrícia Ioschpe Gus
Faculdade de Medicina, Universidade Luterana do Brasil, Porto Alegre, RS, Brazil
Arq Bras Oftalmol 69:327-31. 2006To quantify and compare the in vitro adherence of Staphylococcus epidermidis and Pseudomonas alcaligenes to different intraocular lenses (IOLs).
- Effect of vancomycin, teicoplanin, and cefuroxime on Staphylococcus epidermidis adherence to intraocular lensesBerna Ozkan
Department of Ophthalmology, Kocaeli University, School of Medicine, Kocaeli, Turkey
J Cataract Refract Surg 31:1814-20. 2005To compare the adherence of Staphylococcus epidermidis on AcrySof (Alcon) and poly(methyl methacrylate) (PMMA) intraocular lenses (IOLs) treated with vancomycin, teicoplanin, and cefuroxime.
- Clinical performance of Alcon SA30AL and SA60AT single-piece acrylic intraocular lensesJames A Davison
Department of Ophthalmology, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
J Cataract Refract Surg 28:1112-23. 2002To report the clinical performance characteristics of single-piece acrylic Alcon SA30AL and SA60AT intraocular lenses (IOLs).
- In vitro analysis of the physical properties of contact lens blister pack solutionsKara L Menzies
University of Waterloo, Ontario, Canada
Optom Vis Sci 88:493-501. 2011Since the initial development of silicone hydrogels, many modifications to the bulk and surface properties of the lenses have been undertaken to improve the wettability and comfort of the lenses...
- Dopaminergic agonists that result in ocular growth inhibition also elicit transient increases in choroidal thickness in chicksDebora L Nickla
The New England College of Optometry, Dept of Biosciences, 424 Beacon St, Boston, MA 02115, USA
Exp Eye Res 91:715-20. 2010..dopamine D2 agonists inhibit the development of myopia in response to form deprivation, and in chicks, to negative lenses as well...
- The effect of ionizing radiation on intraocular lensesB E Ellerin
Department of Radiation Oncology, New York University School of Medicine, New York, NY, USA
Int J Radiat Oncol Biol Phys 51:184-208. 2001..In addition, the polymers of which IOLs are composed are themselves subject to radiation damage, which theoretically might result in optical distortion in the visible light range...
- Excimer laser refractive surgery versus phakic intraocular lenses for the correction of moderate to high myopiaAllon Barsam
Moorfields Eye Hospital NHS Foundation Trust, City Road, London, UK, EC1V 2PD
Cochrane Database Syst Rev 5:CD007679. 2010..There are two main types of surgical correction for moderate to high myopia; excimer laser and phakic intraocular lenses (IOLs)...
- Attachment of Acanthamoeba to first- and second-generation silicone hydrogel contact lensesTara K Beattie
Department of Vision Sciences, Glasgow Caledonian University, Glasgow, Scotland, United Kingdom
Ophthalmology 113:117-25. 2006To investigate the attachment of Acanthamoeba to first- and second-generation silicone hydrogel contact lenses, and to determine if patient wear or the presence of a bacterial biofilm coating affects attachment characteristics.
- Development and repair of cataract induced by ultraviolet radiationR Michael
St Erik s Eye Hospital, Stockholm, Sweden
Ophthalmic Res 32:ii-iii; 1-44. 2000..Despite this, current estimations of toxicity for cataract are based on the concept that cataract is a binary event. Moreover, current exposure limits for UVR are based on subjective inspections with slit lamp microscopy...
- Eyes of a lower vertebrate are susceptible to the visual environmentWei Shen
School of Optometry, University of Waterloo, Waterloo, Ontario, Canada
Invest Ophthalmol Vis Sci 48:4829-37. 2007..This study examined the sensitivity of the tilapia eye to positive and negative lenses. It further investigated the sensitivity of the fish eye to form deprivation by examining the effect of fish weight...
- Thioredoxin, thioredoxin reductase, and alpha-crystallin revive inactivated glyceraldehyde 3-phosphate dehydrogenase in human aged and cataract lens extractsHong Yan
Nuffield Laboratory of Ophthalmology, University of Oxford, Walton Street, Oxford, UK
Mol Vis 12:1153-9. 2006..mammalian thioredoxin (Trx) and thioredoxin reductase (TrxR), with or without alpha-crystallin can revive inactivated glyceraldehyde 3-phosphate dehydrogenase (GAPDH) in both the cortex and nucleus of human aged clear and cataract lenses.
- Analysis of expression patterns of protein phosphatase-1 and phosphatase-2A in rat and bovine lensesD W Li
Department of Molecular Biology, University of Medicine and Dentistry of New Jersey School of Osteopathic Medicine, Stratford, New Jersey 08084, USA
Invest Ophthalmol Vis Sci 42:2603-9. 2001..The present article reports the expression patterns of protein phosphatase (PP)-1 and -2A in adult rat and bovine lenses.
- GENE MANIPULATION & H202 DEGRADATION IN THE OCULAR LENSAbraham Spector; Fiscal Year: 2001..Analyses will be carried out in organ culture with lenses from normal, transgenic and knockout lines. The effect of aging will be examined...
- DEVELOPMENT AND MAINTENANCE OF LENS TRANSPARENCYJohn Clark; Fiscal Year: 2009..AIM 2 will use slit lamp imaging to conduct phenotype analyses of lenses in transgenic mouse models for neurodegenerative and neuromuscular disorders...
- DIETARY & GENETIC CONTROL OF ROS DAMAGE TO THE LENSNorman S Wolf; Fiscal Year: 2010..answers for the following questions, using specific fluorescent dyes with confocal readout in living extirpated lenses, protein specific antibodies in lens tissue sections, clonal growth capacity in LEC cultures, LEC chromosome ..
- ELECTRON MICROSCOPIC STUDIES OF THE CRYSTALLINE LENSJ Kuszak; Fiscal Year: 2002..of Hydroxymethlyglutaryl (HMG)-CoA reductase inhibitors on PSC formation, suggest that the PSC opacities of these lenses result from a progressive compromise in posterior sutural anatomy rather than from a proliferation of dysplastic '..
- PROTEINS OF NORMAL AND CATARACTOUS LENSESFRANK GIBLIN; Fiscal Year: 1993..b>Lenses or lens epithelial cells will be challenged oxidatively with hyperbaric O2 in vitro and in vivo, H2O2 and X-..
- ADVANCED ELECTRON MICROSCOPIC STUDIES OF CRYSTALLINE LENJ Kuszak; Fiscal Year: 1999..of Hydroxymethlyglutaryl (HMG)-CoA reductase inhibitors on PSC formation, suggest that the PSC opacities of these lenses result from a progressive compromise in posterior sutural anatomy rather than from a proliferation of dysplastic "..
- ATP LINKED EFFECTORS OF NA+, K+ ATPASE AND CATARACTSMARGARET GARNER; Fiscal Year: 2001..Historically, increased lens Na+ concentrations, common in human cataract lenses, were believed to result from the dysfunction of membrane Na+ transport systems of the lens epithelium...
- MECHANISMS OF OCULAR DEVELOPMENTTHOMAS NORTON; Fiscal Year: 2009..Although glasses, contact lenses and refractive surgery can provide an optical correction, the increased axial length of the eye significantly ..
- MECHANISMS OF OCULAR DEVELOPMENTThomas T Norton; Fiscal Year: 2010..Although glasses, contact lenses and refractive surgery can provide an optical correction, the increased axial length of the eye significantly ..
- MECHANISMS OF OCULAR DEVELOPMENTTHOMAS NORTON; Fiscal Year: 2009..Although glasses, contact lenses and refractive surgery can provide an optical correction, the increased axial length of the eye significantly ..
- MECHANISMS OF OCULAR DEVELOPMENTThomas T Norton; Fiscal Year: 2010
- MODIFICATION OF ALPHA-CRYSTALLIN CHAPERONE FUNCTIONEDATHARA ABRAHAM; Fiscal Year: 2003..2) With both alphaL and alphaH fractions from 1 month to 90 years old human lenses it will be shown whether with increasing age increasing levels of posttranslationally modified alpha-crystallin ..
- PROTEINS OF NORMAL AND CATARACTOUS LENSESFRANK GIBLIN; Fiscal Year: 1990..proteins similar to those which have been found to be present in human senile cataract will be produced in animal lenses by methods involving use of X-irradiation, H2O2 and hyperbaric oxygen...
- Electro-optic adaptive eyeglass for correction of presbyopiaGuoqiang Li; Fiscal Year: 2010..More than 90% of the people over 45 need correction of presbyopia. The conventional corrective lenses (bifocal, trifocal) have been around for more than 200 years and have some drawbacks...
- DETOXIFICATION OF XENOBIOTICS IN OCULAR TISSUESYOGESH AWASTHI; Fiscal Year: 2001..also shown that micromolar concentrations of 4-hydroxynonenal (4-HNE) in culture medium produce opacification in lenses in organ culture, and the induction of GST 5...
- Biofilm Formation And P. aeruginosa infection of the eyeMichael Zegans; Fiscal Year: 2006..the eye can have vision-threatening complications and often are associated with prosthetic devices such as contact lenses, scleral buckles, and intraocular lenses...
- CONTACT LENSES AND MYOPIA (CLAMP) STUDYJEFFREY WALLINE; Fiscal Year: 2003The Contact Lenses and Myopia Progression (CLAMP) Study will serve two purposes: 1) it will provide the training mechanism for Jeffrey J. Walline, O.D...
- ELECTRON MICROSCOPIC STUDIES OF CRYSTALLINE LENSESJ Kuszak; Fiscal Year: 1993..After extracapsular surgical removal, these lenses will be dissected by a method that the investigators have developed that permits that intact retrieval of these ..
- FIBER CELL JUNCTIONS IN NORMAL AND CATARACTOUS LENSESM Costello; Fiscal Year: 1993..it was firmly established that SAJs show distinctive and pronounced modifications during aging in normal bovine lenses and nuclear human senile cataracts...
- DEVELOPMENT AND MAINTENANCE OF LENS TRANSPARENCYJOHN IRWIN CLARK; Fiscal Year: 2010..AIM 2 will use slit lamp imaging to conduct phenotype analyses of lenses in transgenic mouse models for neurodegenerative and neuromuscular disorders...
- PROTEINS OF NORMAL AND CATARACTOUS LENSESFRANK GIBLIN; Fiscal Year: 2005..for alpha-crystallin and protein-thiol mixed disulfides in preventing crystallin precipitation in 02-stressed lenses will be evaluated, and the mechanism of UVA blockage of pentose shunt activity in H202-challenged cultured lenses ..