FR2341942A1 - Lampe fluorescente a effet directif - Google Patents
Lampe fluorescente a effet directifInfo
- Publication number
- FR2341942A1 FR2341942A1 FR7704614A FR7704614A FR2341942A1 FR 2341942 A1 FR2341942 A1 FR 2341942A1 FR 7704614 A FR7704614 A FR 7704614A FR 7704614 A FR7704614 A FR 7704614A FR 2341942 A1 FR2341942 A1 FR 2341942A1
- Authority
- FR
- France
- Prior art keywords
- reflective film
- tube
- phosphor
- linear
- fluorescent lamp
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/35—Vessels; Containers provided with coatings on the walls thereof; Selection of materials for the coatings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/54—Lamp housings; Illuminating means
- G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1813776A JPS52100775A (en) | 1976-02-20 | 1976-02-20 | Fluorescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2341942A1 true FR2341942A1 (fr) | 1977-09-16 |
Family
ID=11963205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7704614A Withdrawn FR2341942A1 (fr) | 1976-02-20 | 1977-02-17 | Lampe fluorescente a effet directif |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS52100775A (fr) |
DE (1) | DE2707109A1 (fr) |
FR (1) | FR2341942A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3316771A1 (de) * | 1983-05-07 | 1984-11-08 | Leybold-Heraeus GmbH, 5000 Köln | Lichtquelle fuer nichtdispersive gasanalysengeraete als fluoreszenzlampe |
JPS6199258A (ja) * | 1984-10-18 | 1986-05-17 | Matsushita Electronics Corp | 光学機器用反射形螢光ランプ |
JPH01162385U (fr) * | 1989-05-20 | 1989-11-13 | ||
DE19923264A1 (de) | 1999-05-20 | 2001-01-18 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Beleuchtungsvorrichtung |
-
1976
- 1976-02-20 JP JP1813776A patent/JPS52100775A/ja active Pending
-
1977
- 1977-02-17 FR FR7704614A patent/FR2341942A1/fr not_active Withdrawn
- 1977-02-18 DE DE19772707109 patent/DE2707109A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS52100775A (en) | 1977-08-24 |
DE2707109A1 (de) | 1977-08-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |