Device for holding accessories for the lenses of apparatuses for

Details Device for holding accessories for the lenses of apparatuses for Device for holding accessories for the lenses of apparatuses for

1981-03-18

1984-04-17

Henry, Jon W.

G02B 700

Patent

active

044430612

ABSTRACT:
An accessory-holding device for a camera comprising an annular body having an aperture therethrough and having on one side a recess extending in a plane transverse to the plane of the aperture for receiving an edge of an adaptor ring adapted to be screwed into a lens assembly in such a way as to permit rotation of the body relative to the adaptor ring, the body also having at least one pair of grooves, on its side which is opposite the recess, these grooves extending in a plane transverse to the plane of the aperture; and an adapting component having an aperture therethrough, the adaptor component having a first contour for engaging in the recess so as to be held therein with the apertures in alignment, the first contour enabling rotation of the adapting component about the axis of the aligned apertures, and the adaptor plate having a second contour for engaging in the pair of grooves so as to be held therein, the second contour enabling sliding movement of the adapting component transversely of the axis of the apertures.

REFERENCES:
patent: 4302078 (1981-11-01), Sfravitz

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