Radiation imagery chemistry: process – composition – or product th – Color imaging process – Laser or radiation exposure other than visible light
Patent
1996-02-20
1997-09-30
Huff, Mark F.
Radiation imagery chemistry: process, composition, or product th
Color imaging process
Laser or radiation exposure other than visible light
430567, 430945, 430494, 430394, 430484, 430435, G03C 1035
Patent
active
056724675
ABSTRACT:
A dye image forming photographic element is disclosed containing at least one green or red sensitized silver halide emulsion layer containing a dye-forming coupler and silver halide grains. At least 50 percent of the projected area of the silver halide grains is accounted for by grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having {100} major faces, (c) exhibiting a thickness of 0.2 .mu.m or less, (d) exhibiting a mean equivalent lent circular diameter in the range of from 3 to 6 .mu.m, and (e) including a core and a surrounding band containing a higher level of iodide ions than the core and up to 30 percent of the silver forming the grains. The photographic element exhibits a sensitivity of greater than 750, where sensitivity is measured as the reciprocal of the exposure in lux-seconds required to produce a density of 0.15 above fog when the photographic element is exposed to a 3000.degree. K. tungsten light source filtered to transmit light between 460 and 700 nm and developed for 3 minutes and 15 seconds at 38.degree. C. in a reference developer, bleached and fixed. The photographic element when exposed to 1.33.times.10.sup.-3 lux-seconds of at least one of green and red light during imagewise exposure produces a density of at least 0.15 above fog when processed in the referenced developer, bleached and fixed.
REFERENCES:
patent: 4439520 (1984-03-01), Kofron et al.
patent: 5292632 (1994-03-01), Maskasky
patent: 5314798 (1994-05-01), Brust et al.
patent: 5320938 (1994-06-01), House et al.
patent: 5413904 (1995-05-01), Chang et al.
patent: 5451490 (1995-09-01), Budz et al.
James and Higgins, Fundamentals of Photographic Theory, Morgan and Morgan, 1960, p. 10.
Keller Science and Technology of Photography, VCH, 1993, p. 38.
Bittner Robert Lawrence
Buitano Lois Ann
Eastman Kodak Company
Huff Mark F.
Thomas Carl O.
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