FR524282A - Projector lanterns - Google Patents
Projector lanternsInfo
- Publication number
- FR524282A FR524282A FR524282A FR524282DA FR524282A FR 524282 A FR524282 A FR 524282A FR 524282 A FR524282 A FR 524282A FR 524282D A FR524282D A FR 524282DA FR 524282 A FR524282 A FR 524282A
- Authority
- FR
- France
- Prior art keywords
- lanterns
- projector
- projector lanterns
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/09—Optical design with a combination of different curvatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR524282T | 1920-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR524282A true FR524282A (en) | 1921-09-01 |
Family
ID=8919194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR524282A Expired FR524282A (en) | 1920-09-16 | 1920-09-16 | Projector lanterns |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR524282A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045100A (en) * | 1958-06-06 | 1962-07-17 | Reflectotherm Inc | Ultra-long infra-red heat ray emitter |
-
1920
- 1920-09-16 FR FR524282A patent/FR524282A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3045100A (en) * | 1958-06-06 | 1962-07-17 | Reflectotherm Inc | Ultra-long infra-red heat ray emitter |
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