Prismatic telescope optical system

Details Prismatic telescope optical system Prismatic telescope optical system

1995-06-01

1997-01-28

Callahan, Timothy P.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

359422, 359431, 359432, 359835, G02B 1514

Patent

active

055982964

ABSTRACT:
A prismatic telescope optical system is available to include one of a plurality of optical systems different in magnification from one another, each having an objective system, an image erecting prism system, and an eyepiece system. Each of plurality of optical systems is constructed so that its respective overall length is are made practically equal by varying the refractive indices of an included image erecting prism system.

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patent: 5410430 (1995-04-01), Ito et al.
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