Optics: image projectors – Lens support – Lens position adjustable
Patent
1994-03-30
1995-02-28
Cuchlinski, Jr., William A.
Optics: image projectors
Lens support
Lens position adjustable
352140, G03B 310
Patent
active
053942051
ABSTRACT:
An apparatus comprises an image sensing optical system including an image pickup element for converting an image to an electrical signal and a projection lens for projecting an image onto a photo-sensing plane of the image pickup element. The image sensing optical system is driven along an optical axis thereof while maintaining a relative positional relationship between the projection lens and the image pickup element to adjust the focal position. An apparatus may also comprise an image sensing optical system including an image pickup element for scanning an image to convert it to an electrical signal and a projection lens for projecting an image onto a photo-sensing plane of the image pickup element, a focus adjusting device for adjusting a focal position of the image sensing optical system and a detector for detecting an in-focus position of the image sensing optical system to the object. The focus adjusting device is controlled in accordance with the output of the detector so that the object is always within a depth of focus of the image sensing optical system.
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Ikeda Soichi
Mochizuki Masahiro
Ochiai Toru
Sato Katsuhiro
Cuchlinski Jr. William A.
Dowling William C.
Nikon Corporation
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