Exposure device

Details Exposure device Exposure device

2004-12-08

2009-08-04

Poon, King Y (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Flying dot

C358S003010, C358S003070, C358S503000, C358S509000, C358S003230, C358S296000

Reexamination Certificate

active

07570388

ABSTRACT:
The invention provides an exposure apparatus that outputs a stable photographic quality image unaffected by variations in ambient temperature, by suppressing the effects of the temperature variations and achieving accurate grayscale reproduction. In the exposure apparatus, input grayscale data P4is converted into corrected grayscale data by using a conversion table for correcting for the nonlinearity of exposure density, and grayscale exposure is performed on a photosensitive material by controlling exposure conditions in an exposure head based on the corrected grayscale data; here, the conversion table actually comprises a plurality of conversion tables one for each designated temperature region, and a temperature detector is provided for detecting the ambient temperature, with provisions made to select an appropriate one of the conversion tables under the control of select data in accordance with the temperature data supplied from the temperature detector. The exposure apparatus can thus achieve accurate grayscale reproduction and output a stable photographic quality image even when the ambient temperature varies.

REFERENCES:
patent: 4736244 (1988-04-01), Shiota et al.
patent: 4975737 (1990-12-01), Murooka et al.
patent: 5668589 (1997-09-01), Kuwabara et al.
patent: 5748858 (1998-05-01), Ohtsuka et al.
patent: 6856410 (2005-02-01), Hasegawa et al.
patent: 6917418 (2005-07-01), Fujishima et al.
patent: 7400840 (2008-07-01), Hattori
patent: 2002/0036757 (2002-03-01), Katakura et al.
patent: 2002/0131080 (2002-09-01), Enomoto
patent: 2003/0142340 (2003-07-01), Watanabe
patent: 2003/0214570 (2003-11-01), Ito et al.
patent: 2004/0086273 (2004-05-01), Horiuchi et al.
patent: 6-98168 (1994-04-01), None
patent: 8-227113 (1996-09-01), None
patent: 2001-8139 (2001-01-01), None
patent: 2001-133911 (2001-05-01), None
patent: 2002-72364 (2002-03-01), None

Affiliated with

Also associated with

Rating

Exposure device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Exposure device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exposure device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4052548