Filter holder insertable into the lens barrel of a camera

Details Filter holder insertable into the lens barrel of a camera Filter holder insertable into the lens barrel of a camera

1975-12-19

1977-09-27

Bauer, Edward S.

350251, 350257, 354286, G02B 700, G03B 1700, G02B 702

Patent

active

040507912

ABSTRACT:
The body of a filter holder carrying a filter has a slot in which an engaging member is disposed for rotation between first and second positions in response to rotation of a shaft to which the engaging member is attached. In a first position of the shaft, retaining means on the engaging member is retracted within the slot for effecting insertion of the holder into a lens barrel. In a second position of the shaft, the retaining means projects from and is engageable with the lens barrel for retaining the body thereto.

REFERENCES:
patent: 1228389 (1917-06-01), Barnes
patent: 2353898 (1944-07-01), Nitsch
patent: 2420379 (1947-05-01), Mills

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