CH311971A - Electric light bulb with reflector. - Google Patents
Electric light bulb with reflector.Info
- Publication number
- CH311971A CH311971A CH311971DA CH311971A CH 311971 A CH311971 A CH 311971A CH 311971D A CH311971D A CH 311971DA CH 311971 A CH311971 A CH 311971A
- Authority
- CH
- Switzerland
- Prior art keywords
- reflector
- light bulb
- electric light
- electric
- bulb
- Prior art date
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
- F21V7/06—Optical design with parabolic curvature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
- H01K1/32—Envelopes; Vessels provided with coatings on the walls; Vessels or coatings thereon characterised by the material thereof
- H01K1/325—Reflecting coating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL311971X | 1952-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH311971A true CH311971A (en) | 1955-12-15 |
Family
ID=19783656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH311971D CH311971A (en) | 1952-03-04 | 1953-03-02 | Electric light bulb with reflector. |
Country Status (7)
Country | Link |
---|---|
US (1) | US2799791A (en) |
BE (1) | BE518131A (en) |
CH (1) | CH311971A (en) |
DE (1) | DE942341C (en) |
FR (1) | FR1072116A (en) |
GB (1) | GB728541A (en) |
IT (1) | IT500078A (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3256456A (en) * | 1958-01-09 | 1966-06-14 | Sylvania Electric Prod | Reflector incandescent projection lamp |
US3018403A (en) * | 1958-03-05 | 1962-01-23 | Westinghouse Electric Corp | Reflector lamp |
US2904714A (en) * | 1958-06-16 | 1959-09-15 | Gen Electric | Electric lamp |
GB904469A (en) * | 1960-02-11 | 1962-08-29 | Thorn Electrical Ind Ltd | Improvements in and relating to projection lamps |
US3162785A (en) * | 1960-04-22 | 1964-12-22 | Sylvania Electric Prod | Projection lamp |
US4280076A (en) * | 1978-10-18 | 1981-07-21 | Duro-Test Corporation | Incandescent lamp with structure for collecting evaporated filament material |
US4446397A (en) * | 1981-09-28 | 1984-05-01 | General Electric Company | High intensity discharge lamp with infrared reflecting means for improving efficacy |
FR2516204A1 (en) * | 1981-11-06 | 1983-05-13 | Lampes Sa | AUTONOMOUS LIGHTING TERMINAL |
US4992695A (en) * | 1989-10-10 | 1991-02-12 | Daniel Naum | Reflector for high-intensity lamps |
US5418420A (en) * | 1993-06-22 | 1995-05-23 | Ilc Technology, Inc. | Arc lamp with a triplet reflector including a concave parabolic surface, a concave elliptical surface and a convex parabolic surface |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE94157C (en) * | ||||
DE339849C (en) * | 1919-03-06 | 1921-08-13 | Siemens & Halske Akt Ges | Arc irradiation lamp, which is arranged on a column that is expediently adjustable in height |
US1676300A (en) * | 1927-02-21 | 1928-07-10 | Sved Alexander | Incandescent electric lamp |
BE391856A (en) * | 1931-11-16 | |||
FR784648A (en) * | 1933-12-01 | 1935-07-22 | Flattened and widened beam headlight which can be achieved by a suitably arranged incandescent lamp | |
US2110590A (en) * | 1936-09-11 | 1938-03-08 | Birdseye Electric Corp | Reflecting incandescent lamp |
US2272186A (en) * | 1939-07-19 | 1942-02-10 | Edward P Creehan | Radiant energy projector |
US2362175A (en) * | 1943-03-25 | 1944-11-07 | Swanson Harold | Piped light full-beam electric lamp |
US2362176A (en) * | 1943-03-25 | 1944-11-07 | Swanson Harold | Flashlight full-beam electric lamp |
US2362172A (en) * | 1943-03-25 | 1944-11-07 | Swanson Harold | Vehicle headlight with integral full-beam electric lamps |
NL69920C (en) * | 1948-03-05 |
-
0
- BE BE518131D patent/BE518131A/xx unknown
- IT IT500078D patent/IT500078A/it unknown
-
1953
- 1953-02-27 GB GB5539/53A patent/GB728541A/en not_active Expired
- 1953-03-01 DE DEN6826A patent/DE942341C/en not_active Expired
- 1953-03-02 FR FR1072116D patent/FR1072116A/en not_active Expired
- 1953-03-02 CH CH311971D patent/CH311971A/en unknown
- 1953-03-03 US US340082A patent/US2799791A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
BE518131A (en) | |
DE942341C (en) | 1956-05-03 |
IT500078A (en) | |
FR1072116A (en) | 1954-09-08 |
US2799791A (en) | 1957-07-16 |
GB728541A (en) | 1955-04-20 |
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