Photocopying – Contact printing – Light boxes
Patent
1980-07-10
1982-09-07
Adams, Russell E.
Photocopying
Contact printing
Light boxes
354290, 355 61, G03B 1506
Patent
active
043480977
ABSTRACT:
A picture taking apparatus is provided which accurately positions a camera lens with respect to the object being photographed. The apparatus comprises in part an element which is supported on and moves along a track. The track has equally spaced parallel pins extending in one direction therefrom and complementary indicator marks located on one face thereof. The element has a carriage which slides horizontally along a shaft of the element which is parallel to the track. The carriage has a cam-operated plate which slides vertically in said carriage to engage and disengage said pins. When the cam-operated plate engages a pin, the carriage is "fixed". This provides a "coarse" adjustment for the position of the camera lens. For the "fine" adjustment, the element is still free to move along the track. The element can be moved along the track to "fine tune" the position of the camera with respect to the object to be photographed. The exact position of the camera lens carried by the element is determined by a gauge which is fixably attached to the element. The gauge has an actuating projection which runs between the element and the carriage so that the precise distance the element is moved with respect to the fixed carriage can be determined.
REFERENCES:
patent: 159536 (1975-02-01), Bergstresser
patent: 584182 (1897-06-01), Linley
patent: 2376416 (1945-05-01), Campbell
patent: 2458344 (1949-01-01), Carroll
patent: 3130632 (1964-04-01), Borrowdale
patent: 3274689 (1966-09-01), Schott
patent: 3739479 (1973-06-01), Blatherwick
Adams Russell E.
Hall William D.
LogEtronics Inc.
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