Industry Patents
Patent: 3914464
Striped Dichroic Filter and Method for Making the Same
(Click image for PDF of full patent)
| Patent Number: |
3914464 |
| Title: |
Striped Dichroic Filter and Method for Making the Same |
| 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.
|
| Country of Issue: |
US |
| First Named Inventor: |
Thomasson, Crosher, Temple, Bartolmei, Seddon |
| Assignee: |
Optical Coating Laboratory |
| Continuation or Divisional of: |
3771857 |
| International Classification: |
B05B 5/02 |
| US Classification: |
427/54 |
| Issue Date: |
10-21-1975 |
| Filing Date: |
05-21-1973 |
| Application : |
362220 |
| Notes: |
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| Link to Patent at freepatentsonline.com: |
3914464 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
3914464 at Google Patents |
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after the patent has issued - they take a while to get new patents in their systems.
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