Optics: motion pictures – With focus control
Patent
1977-08-19
1979-04-10
Hayes, Monroe H.
Optics: motion pictures
With focus control
350 78, 350255, G03B 300
Patent
active
041485696
ABSTRACT:
The present invention relates to a lens unit construction for motion picture and other type projectors. The unit is provided with a motion picture projecting lens construction, a mantle cover to be fixed on the fixing position of the motion picture projector body, a guide device for slidingly guiding and holding the lens construction holding device on the device plate in such a manner that the construction holding device is slidable only along the direction of the optical axis of the lens construction and an adjusting device for operating the slide motion of the construction holding device. The construction holding device or the adjusting device is provided with a cam follower pin while the other is provided with a focus adjusting cam groove in which the cam follower pin is engaged. An engaging device guides the cam follower pin so that it can be easily introduced into the cam groove at the time of assembling the construction holding device with the adjusting device to form one body and for preventing the cam follower pin from being easily brought out of the cam groove in such a manner that the construction holding device is cooperatively coupled with the adjusting device.
REFERENCES:
patent: 1620768 (1927-03-01), Joy
Ashida Akira
Itani Takashi
Maeda Masaya
Suzaki Kuniyoshi
Takahashi Kiyoshi
Canon Kabushiki Kaisha
Hayes Monroe H.
LandOfFree
Lens unit for motion picture projector and others does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lens unit for motion picture projector and others, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lens unit for motion picture projector and others will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1068634