SLR zoom camera

Details SLR zoom camera SLR zoom camera

1987-10-09

1988-07-12

Mathews, A. A.

35419512, 350429, G03B 1308

Patent

active

047573724

ABSTRACT:
A compact SLR camera embodies a zoom taking lens and a diagonal reflecting member along the axis of the taking lens that diverts the optical ray path coming through the lens element forwardly thereof to a viewing screen. The reflecting member is movable along the axis of the taking lens in coordination with the corresponding zooming movement of an adjacent lens element so that the reflecting member and the lens element occupy the same location during different stages of zooming; thereby eliminating the long back focus dictated by the fixed location of the reflecting member in conventional SLR cameras.

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patent: 4114171 (1978-09-01), Altman
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patent: 4506970 (1985-03-01), Fujibayashi et al.
patent: 4529286 (1985-07-01), Fujii
patent: 4609944 (1986-09-01), Nakada et al.
patent: 4694151 (1987-09-01), Yoshimura

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