Layered dimmer system
View Patent ↗A dimmer wheel which is formed to absorb large amounts of light and to disperse the light that is absorbed. The dimmer wheel has a bottom surface that is irregular, and a reflective material in that bottom surface to scatter the light. A light absorbing material also receives some of the light.
1. A optical altering system, comprising:
a substrate having opposite facing surfaces;
the substrate having a pattern formed therein, the pattern forming an area which extends below a first surface of the opposite facing surfaces, and a first reflective portion, directly against a bottom surface of the area, and a second heat absorbing portion, located between the first reflective portion and a first direction that is intended to receive incoming light, where the pattern is different at different areas of the substrate.
2. The system as in claim 1 , wherein the area is formed by openings defined in the first surface.
3. The system as in claim 1 , wherein the bottom surface has an irregular not flat surface.
4. The system as in claim 3 , wherein the opposite facing surfaces are flat surfaces.
5. The system as in claim 1 , wherein the second heat absorbing portion is dark mirror material.
6. The system as in claim 1 , wherein the first reflective portion is aluminum.
7. The system as in claim 1 , wherein the first reflective portion is reflective silicon.
8. The system as in claim 1 , wherein the first reflective portion is substantially transparent to infrared.
9. The system as in claim 1 , wherein the pattern is a substantially circular pattern with openings defining wider areas than others of the openings at the different areas.
10. The system as in claim 1 , wherein the first surface is the surface intended to face to a source of illumination.
11. An optical altering substrate comprising:
a substantially disk shaped substrate having opposite facing surfaces;
a pattern formed of plurality of finger shaped elements, the pattern being located on a first surface of the opposite facing surfaces on the disk shaped substrate;
wherein the fingers are formed with a first recessed area, below an upper surface of the first surface of the substrate;
a filling material in at least part of the first recessed area, including at least a first portion below the upper surface which reflects light and another portion below the upper surface that absorbs heat from the light.
12. The optical altering substrate as in claim 9 , wherein the first portion is formed on an irregular surface to reflect light in multiple directions.
13. The optical altering substrate as in claim 9 further comprising a portion of the substrate which is completely clear.
14. The optical altering substrate as in claim 9 further comprising a portion of the substrate which is completely opaque.
15. The optical altering substrate as in claim 9 wherein the finger shaped elements are narrower at a first area of the substrate, and are broader at a second area of the substrate.
16. The optical altering substrate as in claim 9 , wherein the filling material comprises reflective material underneath dark mirror material.
17. An optical altering system comprising:
a light source, creating a beam of light;
a relay lens, receiving the beam of light, formed of first and second optical elements, and an optical stop therebetween;
a substantially disk shaped substrate having opposite facing surfaces, located in the optical stop, a first of the oppositely facing surfaces, facing the beam of light, the substrate having a pattern formed of plurality of finger shaped elements, where the finger shaped elements are narrower at a first area of the substrate, and are broader at a second area of the substrate, wherein the fingers are formed with a first recessed area, below a surface of the substrate and a filling material in at least part of the first recessed area, including at least a first portion which reflects light and another portion below the upper surface that absorbs heat from the light.
18. The optical altering system as in claim 15 , wherein the first portion is formed on an irregular surface to reflect light in multiple directions.
19. The optical altering system as in claim 9 , wherein the filling material comprises reflective material underneath dark mirror material.