Lens barrel

Details Lens barrel Lens barrel

1992-12-30

1994-09-06

Gellner, Michael L.

G03B 1724

Patent

active

053452836

ABSTRACT:
A lens barrel according to the invention comprises a fixed tube fixedly mounted on a camera body, a drive tube fitted with respect to the fixed tube, a data projector fixedly mounted on the camera body for radiating a projecting luminous flux toward a film surface from respective outer peripheries of the fixed tube and the drive tube, to project photographing information, a through bore formed through a portion of the fixed tube through which the projecting luminous flux of the data projecting means passes, and a cut-out provided in a portion of the drive tube which is overlapped with the through bore in the fixed tube upon photographing. Upon non-photographing, a portion of the drive tube having no cut-out shields the through bore in the fixed tube.

REFERENCES:
patent: Re30258 (1980-04-01), Fujita
patent: 4165933 (1979-08-01), Sonouchi et al.
patent: 4179203 (1979-12-01), Hirohata et al.
patent: 4312581 (1982-01-01), Miyagawa et al.
patent: 4362369 (1982-12-01), Kazami et al.
patent: 5014077 (1991-05-01), Yomogizawa et al.

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