FR799878A - Improvement in the dissipation of radiant energy produced by artificial lighting devices - Google Patents
Improvement in the dissipation of radiant energy produced by artificial lighting devicesInfo
- Publication number
- FR799878A FR799878A FR799878DA FR799878A FR 799878 A FR799878 A FR 799878A FR 799878D A FR799878D A FR 799878DA FR 799878 A FR799878 A FR 799878A
- Authority
- FR
- France
- Prior art keywords
- dissipation
- improvement
- lighting devices
- radiant energy
- energy produced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
- F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0088—Ventilating systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US799878XA | 1934-12-26 | 1934-12-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR799878A true FR799878A (en) | 1936-06-22 |
Family
ID=22154076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR799878D Expired FR799878A (en) | 1934-12-26 | 1935-12-26 | Improvement in the dissipation of radiant energy produced by artificial lighting devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR799878A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2180091A1 (en) * | 1972-04-13 | 1973-11-23 | Ltg Lufttechnische Gmbh | |
US4658338A (en) * | 1985-07-03 | 1987-04-14 | Quartzcolor Ianiro S.P.A. | Lighting projectors with an intensified and accelerated air flow cooling system for photographic and motion picture studios |
-
1935
- 1935-12-26 FR FR799878D patent/FR799878A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2180091A1 (en) * | 1972-04-13 | 1973-11-23 | Ltg Lufttechnische Gmbh | |
US4658338A (en) * | 1985-07-03 | 1987-04-14 | Quartzcolor Ianiro S.P.A. | Lighting projectors with an intensified and accelerated air flow cooling system for photographic and motion picture studios |
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