US3822930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multichannel light effect generator
Assignee: Siemens AG
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Filing: 1972-09-14
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Granted: 1974-07-09
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Expires: 1992-09-14
Abstract
Abstract A multichannel light effect generator for creating lighting effects and light figures having one or more coherent light sources for producing one or more beams of coherent light and directing the beams onto a light effect member to produce light patterns and figures visible to an observer characterized by one or more diffraction gratings disposed between the sources and the light effect member to dissect the beams into a plurality of diffraction orders. The diffraction gratings may be either stationary or moving and the light effect members may be either stationary or moving. In one embodiment, all of the diffraction orders are projected onto one or more light effect members and in another embodiment, one or more light effect members is provided for each of the diffraction orders.
Inventors
- 👤 N Douklias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:11
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/008; F21S; F21S10/00; F21S8/00; F21V5/002; G; G02; G02B; G02B27/00; G02B27/42; G02B27/4233; G02B27/425; G02B5/00; G02B5/18; G02B5/1842; F21W; F21W2131/00; F21W2131/40; F21W2131/406; G02B27/10; G02B27/1086; G02B27/1093
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
A multichannel light effect generator for creating light effects and light figures consisting solely of at least one source of coherent light projecting an unmodified beam of coherent light having a substantial cross-sectional area, means disposed in the path of said beam of coherent light for dissecting said light beam into a multitude of diffraction orders, and at least one light effect member receiving said dissected light after it has passed through said dissecting means and creating a plurality of light interference patterns from said dissected light beam.
Claim 2
Dependent Claim
88 words
A multichannel light effect generator for creating light effects and light figures consisting solely of at least one source of coherent light projecting an unmodified beam of coherent light having a substantial cross-sectional area, means disposed in the path of said beam of coherent light for dissecting said light beam into a multitude of diffraction orders, and at least one light effect member receiving said dissected light after it has passed through said dissecting means and creating a plurality of light interference patterns from said dissected light beam.
Claim 3
Dependent Claim
19 words
A multichannel light effect generator according to claim 1, wherein said means for dissecting comprises a two-dimensional phase grating.
Claim 4
Dependent Claim
19 words
A multichannel light effect generator according to claim 1, wherein said means for dissecting is a two-dimensional amplitude grating.
Claim 5
Dependent Claim
19 words
A multichannel light effect generator according to claim 1, wherein said means for dissecting is a stationary two-dimensional grating.
Claim 6
Dependent Claim
19 words
A multichannel light effect generator according to claim 1, wherein said means for dissecting is a moving two-dimensional grating.
Claim 7
Dependent Claim
28 words
A multichannel light effect generator according to claim 1, wherein the light effect member is arranged to receive all of the diffraction orders produced by the dissecting means.
Claim 8
Dependent Claim
18 words
A multichannel light effect generator according to claim 6, which includes means for moving the light effect member.
Claim 9
Dependent Claim
47 words
A multichannel light effect generator according to claim 1, wherein a plurality of light effect members are provided and, said members being arranged to receive only light of a single diffraction order so that each individual diffraction order has at least one light effect member associated therewith.
Claim 10
Dependent Claim
22 words
A multichannel light effect generator according to claim 8, which includes means for moving at least one of said light effect members.
Claim 11
Dependent Claim
34 words
A multichannel light effect generator according to claim 1, wherein the means for dissecting comprises a pair of diffraction gratings and means for moving one grating relative to the other grating of the pair.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |