Patent
1987-07-15
1988-06-21
Gellner, Michael L.
350581, G03B 1104
Patent
active
047527986
ABSTRACT:
A mounting for a sun shade, a filter or both for the usual bulky lens of a professional video camera can be moved forward or backward parallel to the lens axis on two parallel guide rails (3, 4), the rear ends of which are fixed on a frame (18) supported forward of the lens mounting support (9) by rods (25, 26) and a structure (9) which supports the lens. On the guide rails extending foward from the frame (18) there is mounted a back-and-forth shiftable articulation device (10, 13, 14) which permits swinging of its outer member (14), only in the forward position of the device, about the articulation joint (13). Movement of the accessory towards and away from the lens is driven by an eccentric arm (19) which is linked to a swinging member (22) for transmitting linear motion. A manipulation member 21 serves to move the eccentric arm 19. When the articulation device is in its forward position, the free ends (7, 8) of the guide rails (3, 4) come out of the holes (15, 16) in the front member (14) of the shiftable articulation device and thus release the locking of the articulation joint (13), so that the sun shade, etc., and its bellows (27) can be swung out of the field of view of the lens.
REFERENCES:
patent: 1991814 (1935-02-01), Mitchell
Filmtechnik Alfred Chrosziel GmbH
Gellner Michael L.
LandOfFree
Swingable holder for anterior accessories of an objective lens does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Swingable holder for anterior accessories of an objective lens, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Swingable holder for anterior accessories of an objective lens will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-931870