US5138541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp with ventilated housing
Assignee: NAFA-LIGHT AG
•
Filing: 1992-01-06
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Granted: 1992-08-11
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Expires: 2012-01-06
Abstract
Abstract In a lamp (10) equipped with a cold-light reflector (18) behind the cold-light reflector (18) a further reflector (32) is provided which reflects the infrared radiation onto a housing wall (14) of the lamp (10).
Inventors
- 👤 Tetsuhiro Kano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:02
CPC Classifications
F; F21; F21V; F21V9/00; F21V9/04; F21V29/00; F21V29/15; F21V29/50; F21V29/502; F21V29/505; F21V29/70; F21V29/83; F21V29/85; F21V29/89; F21V7/00; F21V7/22; F21V7/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
161 words
A lamp (10) comprising a housing (12) in which a cold-light reflector (18) and a socket (30) for a light source (20) are arranged, wherein viewed in radiation direction (S) of the lamp (10), behind the cold-light reflector (18) a further reflector (32) reflecting at least infrared radiation (R) is arranged in such a manner that it reflects incident infrared radiation (R) onto the inner side (14') of the housing wall (14), between the further reflector (32) and the housing wall (14) an opening (42) is provided for the passage of air, said socket (30) for the light source (20) is fixed to said further reflector (32), said light source (20) projects freely through an opening (36) of said cold-light reflector (18) such that air can flow through said opening (36) of said cold-light reflector, and wherein, viewed in the radiation direction (S) of the lamp (10), the front wall of the housing (12) comprises openings (44) for passage of air.
Claim 2
Dependent Claim
161 words
A lamp (10) comprising a housing (12) in which a cold-light reflector (18) and a socket (30) for a light source (20) are arranged, wherein viewed in radiation direction (S) of the lamp (10), behind the cold-light reflector (18) a further reflector (32) reflecting at least infrared radiation (R) is arranged in such a manner that it reflects incident infrared radiation (R) onto the inner side (14') of the housing wall (14), between the further reflector (32) and the housing wall (14) an opening (42) is provided for the passage of air, said socket (30) for the light source (20) is fixed to said further reflector (32), said light source (20) projects freely through an opening (36) of said cold-light reflector (18) such that air can flow through said opening (36) of said cold-light reflector, and wherein, viewed in the radiation direction (S) of the lamp (10), the front wall of the housing (12) comprises openings (44) for passage of air.
Claim 3
Dependent Claim
20 words
Lamp according to claim 1, wherein the further reflector (32) is in thermally conductive connection with the housing wall (14).
Claim 4
Dependent Claim
26 words
Lamp according to claim 2, wherein the further reflector (32) is in thermally conductive connection with the housing wall (14) via at least one web (34).
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-11 | 1996-02-10 | 1996-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-11 | 2000-02-10 | 2000-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-11 | 2004-02-10 | 2004-08-11 | $7700.00 | Window Closed / Lapsed |