STRIPED DICHROIC FILTER AND METHOD FOR MAKING THE SAME
First Claim
1. In a striped dichroic filter, a substantially transparent glass substrate having a surface, a first set of spaced parallel stripes for reflecting at least one color, and a second set of spaced parallel stripes for reflecting at least one color different from said one color reflected by said first set of stripes, said first and second sets of stripes being disposed on said surface at an angle with respect to each other with the first and second sets overlying each other on certain areas of said surface, each of said stripes being formed of a plurality of layers of high and low index dielectric materials.
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Accused Products
Abstract
Striped dichroic filter having a substantially transparent glass substrate with a surface and having first and second sets of spaced parallel stripes disposed on said surface at an angle with respect to each other and with each of said sets of stripes being capable of reflecting at least one different color and with the stripes being formed of a plurality of layers of high and low index dielectric materials. In the method for making a striped dichroic filter, first and second sets of spaced parallel stripes are sequentially formed by sequentially depositing dielectric coating materials on sequentially formed stripe material which is subsequently etched away to remove the undesired portions of the coating material so that there remains first and second sets of spaced parallel stripes at angles with respect to each other and with each being capable of reflecting at least one different color.
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Citations
10 Claims
- 1. In a striped dichroic filter, a substantially transparent glass substrate having a surface, a first set of spaced parallel stripes for reflecting at least one color, and a second set of spaced parallel stripes for reflecting at least one color different from said one color reflected by said first set of stripes, said first and second sets of stripes being disposed on said surface at an angle with respect to each other with the first and second sets overlying each other on certain areas of said surface, each of said stripes being formed of a plurality of layers of high and low index dielectric materials.
Specification