Mounting apparatus of lens accessory

Details Mounting apparatus of lens accessory Mounting apparatus of lens accessory

1990-04-03

1992-03-17

Perkey, W. B.

Optical: systems and elements

Prism

With reflecting surface

354295, 359819, G03B 1700

Patent

active

050972804

ABSTRACT:
An accessory mounting apparatus is provided for mounting an accessory to an accessory mounting portion formed on the front end of a lens barrel. The mounting apparatus includes multiple threads formed on the accessory and the accessory mounting portion, adapted to engage each other, and magnetic members formed on the accessory and the accessory mounting portion which are magnetically attracted to each other.

REFERENCES:
patent: 2953970 (1960-09-01), Maynard
patent: 3896463 (1975-07-01), Laskey
patent: 4676605 (1987-06-01), Toda et al.
patent: 4942414 (1990-07-01), Takahashi et al.

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