Engaging mechanism of roller and guide groove in optical element

Details Engaging mechanism of roller and guide groove in optical element Engaging mechanism of roller and guide groove in optical element

1990-12-17

1992-11-03

Ben, Loha

Optical: systems and elements

Lens

With support

359694, G02B 1500

Patent

active

051610663

ABSTRACT:
An engaging mechanism of a stepped guide groove having an inner narrow groove portion and an outer wide groove portion and a roller which is provided with an outer larger diameter portion which is fitted in the outer wide groove portion and an inner small diameter portion which is fitted in the inner groove portion with a clearance therebetween so as not to come into contact with the wall surface of the inner narrow groove portion.

REFERENCES:
patent: 4272160 (1981-06-01), Uesugi
patent: 4324457 (1982-04-01), Tomori
patent: 4346967 (1982-08-01), Komoto et al.
patent: 4380378 (1983-04-01), Tamura
patent: 4506959 (1985-03-01), Hama
patent: 4910544 (1990-03-01), Nomura

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