Stereo attachment accessory for cameras

Claim 2

A stereo attachment for cameras comprising, a housing, means adapted for attaching and aligning said housing to a camera, and means in said housing for producing a stereo pair of images on a film frame having an angle of view of at least 30*, said last named means comprising a pair of frontal lenses adapted for receiving and refracting light rays, a pair of rear lenses for further refracting said light rays prior to projection through a camera lens and onto the film frame in the camera, and a plurality of reflectors intermediate said frontal and rear lenses for directing light rays from said frontal to said rear lens.

Claim 3

The invention of claim 1 wherein said means for attaching and aligning comprises extensions of said housing adapted to partially encompass a camera.

Claim 4

The invention of claim 1 wherein said housing defines a front wall and a rear wall in spaced parallel relation thErewith, said front lenses being mounted in spaced apart relation in said front wall, said rear lenses being mounted in juxtaposed relation in said rear wall and centrally disposed between and inwardly of said front lenses, said plurality of reflectors comprising a first pair of reflectors, one of each pair being located in said housing in a position to receive light rays through one of said frontal lenses and reflect said light rays to a second pair of reflectors located so as to receive said light rays and direct them through said rear lenses.

Claim 5

The invention of claim 3 wherein said first pair of reflectors are mounted at an angle of 45* and said second pair of reflectors an angle of 40* to the plane defined by said housing front wall.

Claim 6

The invention of claim 1 wherein said means for attaching and aligning comprises recesses in said housing back wall adapted for mating with camera projection features.

Claim 7

The invention of claim 1 wherein said means for attaching and aligning comprises a generally elongated strap fixed to said housing adjacent each end and adapted for partially circumscribing a camera.

Claim 8

The invention of claim 1 wherein said means for attaching and aligning comprises clamp means in said housing adapted for gripping a camera barrel.

Claim 9

The invention of claim 7 wherein said clamp means comprises a plurality of clamps movable into and out of gripping relation with a camera lens barrel and indicia on at least one of said clamps movably related to an indicia scale on said housing for adapting said attachment to various diameter lens barrels.

Claim 10

The invention of claim 1 further including a lens set operatively mounted to said housing adapted for mating with the viewfinder of a camera for facilitating aiming and composition.