Patent
Thin film polarizing device
Li Li,Jerzy A. Dobrowolski +1 more
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TLDR
A thin film polarizing device has first and second light transmissive substrates in the form of prisms and a plurality of thin film layers disposed between the prisms as mentioned in this paper.Abstract:
A thin film polarizing device has first and second light transmissive substrates in the form of prisms and a plurality of thin film layers disposed between the prisms. The thin film layers and have predetermined thicknesses and refractive indices which allow unpolarized incident light to be separated into s-polarized and p-polarized light beams. Both frustrated total internal reflection and thin film interference are simultaneously employed to allow s-polarized light to be transmitted and p-polarized light to be reflected over a wide range of wavelengths and angles of incidence. The polarizing device may be used as a polarizer or a polarizer beam splitter.read more
Citations
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Patent
Polarizing beam splitter
TL;DR: The polarizing beam splitter (PBS) as discussed by the authors is a beamforming beamforming system that is suitable for use in projection systems and displays and has a refractive index difference of less than about 0.15 units.
Patent
Image projection system with a polarizing beam splitter
TL;DR: In this article, a wire grid polarizing beam splitter is used as both the polarizer and the analyzer in an image projection system, which is capable of being oriented at various angles with respect to the source light beam and modulated beam, and accepts relatively divergent light.
Patent
Image projection system engine assembly
TL;DR: In this paper, a light projection engine uses a wide angle reflecting polarizer material (preferably 3M DBEF brand double brightness enhancement filter) as a polarizing beamsplitter to direct polarized light to beam splitter/combiner (such as an X-cube dichroic reflector).
Patent
Measurements of Optical Inhomogeneity and Other Properties in Substances Using Propagation Modes of Light
TL;DR: In this article, the authors describe designs, implementations, and techniques for controlling propagation mode or modes of light in a common optical path, which may include one or more waveguides to sense a sample.
Journal ArticleDOI
High-performance thin-film polarizing beam splitter operating at angles greater than the critical angle
Li Li,J. A. Dobrowolski +1 more
TL;DR: A new type of thin-film polarizing beam splitter (PBS) is proposed that is based on the effects of light interference and frustrated total internal reflection that has a significantly better performance than conventional thin- film PBS's.
References
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Patent
Unabsorbing type polarizer, method for manufacturing the same, polarized light source using the same, and apparatus for liquid crystal display using the same
Katsumi Kondo,Junichi Hirakata,Osamu Ito,Teruo Kitamura,Shuichi Ohara,Naoki Kikuchi,Masato Shimura +6 more
TL;DR: The polarizer of the present invention is composed of mediums having different refractive indices, by which ordinary light in incidented light is wholly reflected at a boundary between laminated medium I and medium II and extraordinary light is transmitted through the medium II as discussed by the authors.
Patent
Reflective polarization retarder and laser apparatus utilizing same
TL;DR: In this paper, a reflective thin-film polarization rotator for active mirror laser apparatus is described. The rotator is made up of a thin film reflective transmissive polarizer and a phase adjusting layer, which may be one or more thin film layers.
Patent
Hybrid Brewster's angle wire grid infrared polarizer
TL;DR: In this paper, a wire grid polarizer in an optically cascaded relationship with a Brewster's angle polarizer is proposed to provide a combination of both the extinction ratio and the balance between the reflection and recombination problem of the system on the one hand and the offset or beam walking problem on the other hand.
Patent
Infrared polarizing beamsplitter
TL;DR: In this article, a polarizing cube beamsplitter, which is designed for infrared applications, comprises two 45° prisms made of ZnSe, and the resulting beam is of cubic configuration.