Strobe popping-up apparatus

Details Strobe popping-up apparatus Strobe popping-up apparatus

1989-07-24

1992-08-25

Lazarus, Ira S.

Illumination

Light source and modifier

Adjustable or repositionable light source or light source...

362 3, 362 18, 362287, 362427, 35414911, G03B 1502

Patent

active

051424657

ABSTRACT:
A strobe pop-up apparatus in which a strobe body is moved between a retracted position and a projection position, includes rotational levers which are pivoted at one end to the sides of a front portion of the strobe body and which are pivoted at their opposite ends to supporting members, and a cam guide mechanism having cam grooves and pins fitted in the cam grooves, between the sides of a rear portion of the strobe body and the supporting members, for guiding the movement of the strobe body between the retracted position and the projected position in accordance with the rotation of the rotational lever. The cam grooves are provided, on their terminal ends adjacent to the projected position of the strobe body, with archwise cam groove portions which extend along a circle having a center on an imaginary line parallel with the rotational levers when located in the vicinity of the projected position and having a radius that is the same as the rotational movement of the rotational lever.

REFERENCES:
patent: 4276579 (1981-06-01), Yako
patent: 4471410 (1984-09-01), Nakano
patent: 4516191 (1985-05-01), Moriyama et al.
patent: 4545661 (1985-10-01), Hamaguchi et al.
patent: 4768134 (1988-08-01), Haydu et al.
patent: 4771308 (1988-09-01), Tejima et al.
patent: 4821155 (1989-04-01), Harting
patent: 4893140 (1990-01-01), Yamamoto et al.
patent: 4910542 (1990-03-01), Yamamoto et al.
patent: 4920368 (1990-04-01), Arai et al.
British Search Report 89-17084.9, Oct. 1989.
English abstract of German Patent No. 3,639,751.
French Search Report.

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