FR2200551B3 - - Google Patents
Info
- Publication number
- FR2200551B3 FR2200551B3 FR7333589A FR7333589A FR2200551B3 FR 2200551 B3 FR2200551 B3 FR 2200551B3 FR 7333589 A FR7333589 A FR 7333589A FR 7333589 A FR7333589 A FR 7333589A FR 2200551 B3 FR2200551 B3 FR 2200551B3
- Authority
- FR
- France
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D17/00—Dark-room arrangements not provided for in the preceding groups; Portable dark-rooms
-
- 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
- F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
- F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
- F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2105/00—Planar light sources
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Filters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4344572 | 1972-09-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2200551A1 FR2200551A1 (sv) | 1974-04-19 |
FR2200551B3 true FR2200551B3 (sv) | 1976-08-20 |
Family
ID=10428783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7333589A Expired FR2200551B3 (sv) | 1972-09-20 | 1973-09-19 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2346745A1 (sv) |
FR (1) | FR2200551B3 (sv) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357816A1 (fr) * | 1976-07-07 | 1978-02-03 | Thezard Jean Pierre | Appareil d'eclairage en lumiere inactinique |
DE102011107642A1 (de) * | 2011-07-12 | 2013-01-17 | Bjb Gmbh & Co. Kg | Leuchtmittel mit wenigstens einer organischen, Licht emittierenden Diode |
-
1973
- 1973-09-17 DE DE19732346745 patent/DE2346745A1/de active Pending
- 1973-09-19 FR FR7333589A patent/FR2200551B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2346745A1 (de) | 1974-04-04 |
FR2200551A1 (sv) | 1974-04-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |