FR2048203A5 - - Google Patents
Info
- Publication number
- FR2048203A5 FR2048203A5 FR6920518A FR6920518A FR2048203A5 FR 2048203 A5 FR2048203 A5 FR 2048203A5 FR 6920518 A FR6920518 A FR 6920518A FR 6920518 A FR6920518 A FR 6920518A FR 2048203 A5 FR2048203 A5 FR 2048203A5
- 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
-
- 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
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/041—Controlling the light-intensity of the source
- H05B39/042—Controlling the light-intensity of the source by measuring the incident light
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2053—Intensity control of illuminating light
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6920518A FR2048203A5 (en) | 1969-06-19 | 1969-06-19 | |
CH1364469A CH498415A (en) | 1969-06-19 | 1969-09-10 | Method and device for automatic compensation of light intensity in slide projectors |
BE738653D BE738653A (en) | 1969-06-19 | 1969-09-10 | |
NL6914251A NL6914251A (en) | 1969-06-19 | 1969-09-19 | |
ES371719A ES371719A1 (en) | 1969-06-19 | 1969-09-20 | Procedure for the automatic compensation of the luminous intensity in the sliding projectors. (Machine-translation by Google Translate, not legally binding) |
DE19691954938 DE1954938A1 (en) | 1969-06-19 | 1969-10-31 | Method and device for automatic compensation of the brightness of projected slides in slide projectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6920518A FR2048203A5 (en) | 1969-06-19 | 1969-06-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2048203A5 true FR2048203A5 (en) | 1971-03-19 |
Family
ID=9036024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR6920518A Expired FR2048203A5 (en) | 1969-06-19 | 1969-06-19 |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE738653A (en) |
CH (1) | CH498415A (en) |
DE (1) | DE1954938A1 (en) |
ES (1) | ES371719A1 (en) |
FR (1) | FR2048203A5 (en) |
NL (1) | NL6914251A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29619567U1 (en) * | 1996-07-16 | 1997-01-23 | Luk Fahrzeug-Hydraulik Gmbh & Co Kg, 61352 Bad Homburg | Device for stabilizing the roll of a vehicle |
-
1969
- 1969-06-19 FR FR6920518A patent/FR2048203A5/fr not_active Expired
- 1969-09-10 CH CH1364469A patent/CH498415A/en not_active IP Right Cessation
- 1969-09-10 BE BE738653D patent/BE738653A/xx unknown
- 1969-09-19 NL NL6914251A patent/NL6914251A/xx unknown
- 1969-09-20 ES ES371719A patent/ES371719A1/en not_active Expired
- 1969-10-31 DE DE19691954938 patent/DE1954938A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
NL6914251A (en) | 1970-12-22 |
ES371719A1 (en) | 1971-11-16 |
CH498415A (en) | 1970-10-31 |
DE1954938A1 (en) | 1970-12-23 |
BE738653A (en) | 1970-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |