Optical length adjusting device

Details Optical length adjusting device Optical length adjusting device

1998-11-24

2000-06-27

Schuberg, Darren E.

Optical: systems and elements

Deflection using a moving element

359223, 355 60, 355 67, 399200, 399202, G02B 2608

Patent

active

060813636

ABSTRACT:
An optical length adjusting device provides different optical length for different lenses in a multi-resolution scanner. The optical length adjusting device includes a focus module for focusing the optical image on an image sensor, a first light reflecting device for directing the light from an object to the focus module, a first carrier for fixing the first light reflecting device, a second carrier for fixing the focus module, and a driving module for moving the first and/or second carriers to change the distance between them. Since the distance between the focus module and the first light reflecting module can be adjusted, the light from the object can be guided to the focus module via the same optical path for different resolution.

REFERENCES:
patent: 4774547 (1988-09-01), Uchida et al.
patent: 5559585 (1996-09-01), Takagi
patent: 5822082 (1998-10-01), Sato

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