Light control device

Details Light control device Light control device

1975-02-18

1977-08-09

Adams, Russell E.

354 23D, 354 44, G03B 908

Patent

active

040415120

ABSTRACT:
The invention discloses a light control device comprising a light control mechanism comprising a plurality of shutter blades, which may also function as an aperture control diaphragm, and shutter blade driving means for intermittently driving the shutter blades in response to pulse signals; and a control circuit for applying the pulse signals to the driving means.

REFERENCES:
patent: 3348462 (1967-10-01), Fahlenberg
patent: 3654845 (1972-04-01), Fahlenberg et al.
patent: 3686672 (1972-08-01), Ishizuka
patent: 3687042 (1972-08-01), Mizui et al.
patent: 3818499 (1974-06-01), Brandt
patent: 3842587 (1974-10-01), Strauss et al.
patent: 3900855 (1975-08-01), Stempeck
patent: 3903528 (1975-09-01), Kee

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