Invention Grant
- Patent Title: Striped dichroic filter and method for making the same
- Patent Title (中): 条纹二向色滤光片及其制作方法
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Application No.: US36222073Application Date: 1973-05-21
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Publication No.: US3914464APublication Date: 1975-10-21
- Inventor: THOMASSON DAVID G , CROSHER FREDERICK K , TEMPLE MICHAEL D , BARTOLMEI LEROY A , SEDDON RICHARD IAN
- Applicant: OPTICAL COATING LABORATORY INC
- Assignee: Optical Coating Laboratory Inc
- Current Assignee: Optical Coating Laboratory Inc
- Priority: US36222073 1973-05-21; US13513171 1971-04-19
- Main IPC: G02B5/20
- IPC: G02B5/20 ; G02B5/28 ; G03B33/00 ; B05B5/02 ; B05B1/32
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 striped 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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