Optical designs of waveguide-type augmented reality displays are investigated. Displays based on volume phase holograms notable for their small size, large exit pupil and high transmittance both in the projected image channel direct vision channel. However, with an increase aperture, field view working spectral range, spread values beam angle incidence wavelength increases when solving diffract...

PURPOSE To determine the cause of negative dysphotopsia and the location, appearance, and relative intensity of such images in pseudophakic eyes. SETTING Baylor College of Medicine, Houston, Texas, USA. DESIGN Reporting available data addressing a specific clinical question. METHODS Negative dysphotopsia was simulated using the Zemax optical design program. The nominal values for the pseu...

PURPOSE To describe a new methodology that derives horizontal posterior retinal contours from partial coherence interferometry (PCI) and ray tracing using the corneal topography. METHODS Corneal topography and PCI for seven horizontal visual field eccentricities correspondent to the central 60 degrees of the posterior pole were obtained in 55 myopic eyes. A semicustomized eye model based on t...

The near-infrared multi-object spectrograph NIRSpec is one of the three science instruments onboard the future James Webb Space Telescope. NIRSpec will cover the 0.6 to 5.0 μm wavelength range and will be able to obtain simultaneous spectra of more than 100 objects in a 9 square arcminute field of view, thanks to an array of micro-shutters. It has been realized that accurate modelling of the in...

PURPOSE The purpose of this study was to test the response of the mouse eye to two methods for the induction of experimental myopia. METHODS Growth patterns of eyes were determined by axial length measurements from birth to adult in eyes of both sexes of normal mice examined on post-natal day 1 to 6 months and at 1 year. For the induction of experimental myopia, Balb/cJ mice were prepared wit...

Realizar las pruebas pre-clínicas por medio de herramientas diseño óptico para simular la calidad óptica una plataforma inteligente iris artificial encapsulada en lente contacto escleral. Estas nos permiten generar modelos ojo aniridia y evaluar distintas métricas visual iluminación retiniana función apertura del basado cristal líquido. Se utilizó técnica imagen OCT medir geometría segmento ant...

激光外差光谱（LHS）系统具有光谱分辨率高、探测灵敏度高和体积小等特点，在高分辨率太阳光谱和整层大气透过率测量等应用中受到关注。以3.93 μm分布反馈式带间级联激光器（DFB-ICL）作为本振光源搭建了激光外差光谱测量系统，以太阳光作为信号光，利用Zemax光学仿真软件对太阳光与激光的耦合进行设计和仿真。基于开普勒望远镜原理设计了太阳光整形结构。光斑整形后有效提高了外差耦合效率，将系统信噪比提高至162.1，比无整形条件下获得的信噪比提高了一倍。利用搭建的激光外差系统实测了合肥地区整层大气N2O吸收光谱，采用最优估算法反演了N2O的柱浓度，均值为0.311×10-6，反演结果与EM27/SUN的实测结果进行比较，两种方式获得的N2O柱浓度相关性为0.856。测量结果表明，激光外差光谱测量系统的光学结构经设计和优化后，光学耦合效率和系统信噪比均得到有效提升，基于实测太阳光谱反演获得的...

We have extended the Tiny Tim HST point-spread function simulator so that it can now generate PSFs for the Wide Field Camera 3. This ISR describes the changes and sources of information used and shows some comparisons between modeled PSFs and those observed with the CASTLE stimulus during thermal vacuum testing. A web interface to the same simulation software is also available. Introduction Tin...