Prism

Details Prism Prism

1997-10-24

1999-10-19

Shafer, Ricky D.

Optical: systems and elements

Diffusing of incident light

359601, 359614, 359831, 359836, G02B 502, G02B 504, G02B 2700

Patent

active

059698691

ABSTRACT:
A prism has a notch at a lower end of a third reflection plane of a pentagonal roof prism. The notch has a frosted wall, on which a transparent plate is adhered with adhesive. A miniature prism is adhered to the transparent plate with adhesive. The adhesive has photo-transmissibility, so that a transparent plane is formed between the pentagonal prism, the transparent plate and the miniature prism. Information displayed by an indication device is directed to an eyepiece optical system, via a mirror and the miniature prism.

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