Automatic fading device for motion picture camera

Details Automatic fading device for motion picture camera Automatic fading device for motion picture camera

1975-12-05

1977-06-21

Hayes, Monroe H.

Optics: motion pictures

Special effects

Transition effects

352170, 352217, G03B 2136

Patent

active

040308200

ABSTRACT:
A fading device for a motion picture camera includes a pair of sectors rotated with respect to each other to vary the angle of a light passing section formed thereby to obtain a fade-in or fade-out effect. The sectors are rotated relatively to each other by means of a drive mechanism operated by a motor by way of a change-over mechanism which is operable to change the direction of the relative rotation of the sectors. An indicator is connected with the change-over mechanism to indicate whether the fade-in or fade-out is possible in accordance with the situation of the sectors.

REFERENCES:
patent: 3549249 (1970-12-01), Katsuyama
patent: 3748029 (1973-07-01), Sakaguchi

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