Color imaging devices having integral color filter arrays

Details Color imaging devices having integral color filter arrays Color imaging devices having integral color filter arrays

1978-03-08

1980-04-01

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Screen other than for cathode-ray tube

313371, 313374, 350162SF, 350311, 350317, 358 41, 358 44, 358253, 430 24, 430321, 430541, G03F 500, G02B 518, G02B 522

Patent

active

041960092

ABSTRACT:
A color imaging device which comprises an adhesive layer between (a) means for sensing radiation comprising a planar array of charge-handling semiconductive photosensors, and (b) superimposed filter means for controlling access of radiation to the sensing means comprising a transparent polymer layer capable of receiving dyes such as heat transferable dyes; the adhesive layer comprising a polyester selected from the group consisting of (1) polyesters having recurring carboxylate units of which at least 80 mole percent are terephthalate units, and recurring alkylene units derived from glycols of which at least 40 mole percent are ether alkylene units, with the proviso that either (a) the recurring alkylene units comprise at least 60 mole percent ether alkylene units or (b) either the recurring carboxylate units comprise at least 2 mole percent pyromellitic tetracarboxylate units or at least 10 mole percent of linear aliphatic dicarboxylate units having at least 8 carbon atoms, and that when at least 10 mole percent of the carboxylate units are said linear aliphatic dicarboxylate units, the total of the mole percent of lower aliphatic dicarboxylate units of the recurring carboxylate units plus the mole percent of ether alkylene units of the recurring alkylene units is at least 60 mole percent and (2) polyesters having recurring alkylene units and recurring carboxylate units wherein at least 30 mole percent of the carboxylate units are alicyclic dicarboxylate units and wherein the remaining carboxylate units are nonlinear aromatic dicarboxylate units. A method for preparing such devices, color filter arrays useful therein and imaging elements useful therein are also described.

REFERENCES:
patent: 2681857 (1954-06-01), Rogers
patent: 2750524 (1956-06-01), Braham
patent: 3632291 (1972-01-01), DeFago et al.
patent: 3940246 (1976-02-01), DeFago et al.
patent: 4047230 (1978-01-01), Sandhu
patent: 4081277 (1978-03-01), Brault et al.

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