Zoom lens having an illumination system incorporated therein

Details Zoom lens having an illumination system incorporated therein Zoom lens having an illumination system incorporated therein

1991-11-06

1994-02-15

Arnold, Bruce Y.

Optical: systems and elements

Compound lens system

Microscope

359390, 359676, 359699, G02B 2106, G02B 1514

Patent

active

052872203

ABSTRACT:
A zoom lens is disclosed which makes use of a space between an inner tube and an operating ring which does not impair operability of the zoom lens. Light guides are disposed in the space and illumination systems are incorporated in the zoom lens.

REFERENCES:
patent: 4046463 (1977-09-01), La Russa et al.
patent: 4291938 (1981-09-01), Wagner
patent: 4596449 (1986-06-01), Iwata et al.
patent: 4597648 (1986-07-01), Feldon et al.
Moritex, "Scopeman", Jun. 1990.
The English language abstract of the Japanese reference No. 58-28712.

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