Prism for ergonomic position

Details Prism for ergonomic position Prism for ergonomic position

2007-01-19

2009-06-02

Dang, Hung X (Department: 2873)

Optical: systems and elements

Compound lens system

Telescope

C359S412000

Reexamination Certificate

active

07542204

ABSTRACT:
A single view angle deflector or a pair of viewing angle deflectors located proximal to the user's eye[s] and below the user's normal straight-ahead vision, with the eyepiece tilted at 22.5° or less relative to the horizontal and the deflector providing a deflection of light rays of preferably 37.5°.

REFERENCES:
patent: 6120145 (2000-09-01), Lyst et al.

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