Self-compensating focus system for optical video playback...

Details Self-compensating focus system for optical video playback... Self-compensating focus system for optical video playback...

G - Physics

11

B

352/32.21

G11B 7/12 (2006.01) G02B 13/22 (2006.01) G11B 7/09 (2006.01) H04N 5/76 (2006.01)

Patent

CA 1060581

ABSTRACT OF THE DISCLOSURE An optical video playback device having a self- compensating focus system featuring one or more afocal relays for increasing the operating range of such a system. - 1 -

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