Telescope zoom lens assembly

Details Telescope zoom lens assembly Telescope zoom lens assembly

1998-06-04

1999-09-28

Spyrou, Cassandra

Optical: systems and elements

Compound lens system

Telescope

359699, 359827, G02B 2300, G02B 1514, G02B 702

Patent

active

059597704

ABSTRACT:
A penta mirror diagonal and zoom lens assembly for refracting or catadioptric astronomical telescopes includes a specially adapted zoom lens with a key extending outward from an objective lens and an adaptor designed for insertion and retention in a viewing end of an astronomical or catadioptric telescope. The adaptor includes a keyway which mates with the key on the zoom lens, thus allowing the zoom lens to be used only with the adaptor. The zoom lens itself is specially designed for use with astronomical or catadioptric telescopes.

REFERENCES:
patent: 2662443 (1953-12-01), Loeck
patent: 3549230 (1970-12-01), Kato
patent: 4172634 (1979-10-01), Thompson
patent: 4221459 (1980-09-01), Fisher
patent: 4249793 (1981-02-01), Uehara
patent: 4600277 (1986-07-01), Murray, Jr.
patent: 5151820 (1992-09-01), Sillitto et al.
patent: 5587843 (1996-12-01), Chen
patent: 5598296 (1997-01-01), Imaizumi

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