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US 6,365,304 B2Granted
Method of making a random color filter array
AssigneeEastman Kodak Company
InventorMichael J. Simons
Life of this patent
Estimating the term…
Abstract
A method of making a random color filter array layer which comprises dispersing in an aqueous medium a water immiscible oily liquid having dyes and/or pigments dissolved or dispersed therein to form colored droplets and mixing the resulting dispersion with one or more other dispersions of different colors in a continuous aqueous phase having a film forming polymer dissolved therein and coating the resulting mixture onto a support layer. The color filter array is useful in image capture devices including digital cameras, scanners and photographic film.
Claims10
A method of making a random color filter array comprising the steps of:
- dispersing in an aqueous medium a water immiscible oily liquid having dyes and/or pigment particles dissolved and/or dispersed therein to form colored droplets, the aqueous medium having dispersed therein a quantity of colloidal silica sufficient to stabilize the surface area of the droplets so as to control the average diameter thereof,
- mixing the resulting dispersion with one or more other dispersions of different colors in a continuous aqueous phase having a film forming polymer dissolved therein and
- coating the resulting mixture onto a support layer.
Dependencies are inferred from the claim text.