Thin film polarizing device

Details Thin film polarizing device Thin film polarizing device

1996-08-12

1999-06-15

Shafer, Ricky D.

Optical: systems and elements

Having significant infrared or ultraviolet property

Having polarizing element

359495, 359498, 359583, G02B 530

Patent

active

059127627

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.

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patent: 5309422 (1994-05-01), Kuroki et al.
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