Birefringent grating polarizing beam splitter

Details Birefringent grating polarizing beam splitter Birefringent grating polarizing beam splitter

1996-08-30

1999-06-22

Shafer, Ricky D.

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

359494, 359569, 359571, G02B 530, G02B 518

Patent

active

059148110

ABSTRACT:
A birefringence polarizing beam-splitter is provided. A series of periodic blazed grooves or grooves with echelon profile having a number of steps is provided on the surface of an optically birefringent material. The birefringent substrate material may be crystalline or plastic. In another embodiment, two substrates of birefringent material having a series of periodic blazed grooves or grooves with echelon profile are combined to achieve greater angle of beam splitting.

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