Optics: motion pictures – Shutters – Rotary
Patent
1986-05-19
1987-01-20
Hayes, Monroe H.
Optics: motion pictures
Shutters
Rotary
352215, G03B 910
Patent
active
046377018
ABSTRACT:
A shutter for use in a television camera, including: a casing having a first wall having a first opening formed therethrough for allowing incident light from a lens of the television camera to pass through the first opening and a second wall opposingly disposed to the first wall and having a second opening aligned to the first opening for allowing the incident light to pass through the second opening into a body of the television camera; a first disc member supported within the casing to be rotatable about an axis thereof and in parallel with the first and the second walls, the first disc member having a first shutter hole formed therethrough; a second disc member supported within the casing to be rotatable about an axis thereof and in parallel with the first and the second walls, the second disc member having a second shutter hole formed therethrough, the first disc member and the second disc member being disposed to overlap at overlapping areas at peripheries thereof with a gap, the first and second shutter holes formed to be aligned to each other and to the first and second openings at the overlapping areas to define a shutter opening when the first and second disc members rotate; a rotating mechanism, mounted on the casing, for rotating the first and the second disc members in the same direction; and a controlling mechanism for controlling the rotating mechanism to thereby control the rotation of the first and the second disc members so that the forming of the shutter opening is synchronized with a field scanning of the television camera, whereby the incident light is allowed to pass through the first opening, the shutter opening and the second opening in synchronism with the field scanning of the television camera.
REFERENCES:
patent: 1749154 (1930-03-01), O'Hagen et al.
patent: 3196457 (1965-07-01), Buck
Hayes Monroe H.
Yamaguchi Cinema Corporation
LandOfFree
Shutter for use in a television camera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shutter for use in a television camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shutter for use in a television camera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2132257