Lens barrel suitable for flash photography

Details Lens barrel suitable for flash photography Lens barrel suitable for flash photography

1981-08-26

1983-12-27

Lechert, Jr., Stephen J.

Illumination

Photographic lighting

Including specific light modifier

362 11, 362 18, 362232, 362241, 362249, 362277, 354126, 354132, G03B 1502

Patent

active

044234708

ABSTRACT:
In a lens barrel to which a flashlight-emitting device is mounted or may be mounted and which enables a very proximate object to be photographed, there is provided a light-intercepting member interposed in the path of the light emitted by the flashlight-emitting device in response to the operation of a lens optical system for rendering the lens barrel capable of effecting very proximate photography, the light-intercepting member being for intercepting part of the light emitted from the flashlight-emitting device and travelling toward the optical axis of the lens optical system.

REFERENCES:
patent: 4190880 (1980-02-01), Esaki
patent: 4276579 (1981-06-01), Yako
patent: 4293892 (1981-10-01), Plummer
patent: 4392183 (1983-07-01), stlund et al.

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