IP Library Granted Patent US 8,081,367
Granted Patent B2
US 8,081,367 · App. 12/145,003 · Granted Dec 20, 2011

Layered dimmer system

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Quick Facts
Patent No.
US 8,081,367
App. No.
12/145,003
Granted
Dec 20, 2011
Kind
B2
Abstract

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.

Claims (20)

1. A dimmer system, comprising:

a substrate;

said substrate having openings therein defined by sidewalls and a bottom portion of said openings, wherein said bottom portion has an irregular surface therein; and

a two-part optical filling within said openings, wherein said optical filling includes a first reflective portion, directly against said irregular surface, and a second heat absorbing portion, above said reflecting portion and directly connected thereto.

2. A dimmer system as in claim 1 , wherein said heat absorbing portion is dark mirror material.

3. A dimmer system as in claim 1 , wherein said reflecting portion is aluminum.

4. A dimmer system as in claim 2 , wherein said reflecting portion is reflective silicon.

5. A dimmer system as in claim 1 , wherein said reflecting portion is substantially transparent to infrared.

6. A dimmer system as in claim 1 , wherein said substrate includes said openings arranged in a pattern which is irregular over a surface of said substrate.

7. A dimmer system as in claim 6 , wherein said pattern is a substantially circular pattern with some of the openings defining wider areas than others of the openings.

8. A dimmer wheel comprising:

a substantially disk shaped substrate;

a plurality of fingers, located on said disk shaped substrate, said fingers forming a pattern that varies across a surface of the disk shaped substrate;

wherein said fingers are formed with a first portion below an upper surface of the substrate, and a second portion above said upper surface of the substrate, including a bottom surface formed by an irregular surface;

a filling material for said fingers, including at least a portion below the upper surface which comprises a reflective material with an irregular surface that mates with said irregular surface of said fingers, and a bottom surface that has an irregular surface, and wherein said fingers have different sizes at different areas on the substrate.

9. A wheel as in claim 8 , wherein said reflective material is aluminum.

10. A wheel as in claim 8 , wherein said reflective material is reflective silicon.

11. A wheel as in claim 8 , wherein said fingers are light absorbing material.

12. A wheel as in claim 8 , further comprising a portion of the wheel which is completely clear.

13. A wheel as in claim 8 , further comprising a portion of the wheel which is completely opaque.

Assignments (6)
SECURITY INTEREST Recorded Oct 10, 2025
From: PRODUCTION RESOURCE GROUP, L.L.C.
To: KKR LOAN ADMINISTRATION SERVICES LLC
Reel/Frame 073058/0722 →
SECURITY INTEREST Recorded May 14, 2024
From: ALLY BANK
To: KKR LOAN ADMINISTRATION SERVICES LLC
Reel/Frame 067404/0695 →
SECURITY INTEREST Recorded May 13, 2024
From: PRODUCTION RESOURCE GROUP, L.L.C.; MAGIC TO DO 2020 INC.
To: KKR LOAN ADMINISTRATION SERVICES LLC
Reel/Frame 067397/0146 →
SECURITY INTEREST Recorded May 10, 2024
From: PRODUCTION RESOURCE GROUP, L.L.C.; MAGIC TO DO 2020 INC.
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 067381/0294 →
SECURITY AGREEMENT Recorded Oct 7, 2020
From: PRODUCTION RESOURCE GROUP, L.L.C., AS A GRANTOR
To: ALLY BANK, AS ADMINISTRATIVE AGENT
Reel/Frame 053994/0038 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 10, 2008
From: BORNHORST, JAMES
To: PRODUCTION RESOURCE GROUP, LLC
Reel/Frame 021668/0010 →