FR2224770A1 - - Google Patents
Info
- Publication number
- FR2224770A1 FR2224770A1 FR7311872A FR7311872A FR2224770A1 FR 2224770 A1 FR2224770 A1 FR 2224770A1 FR 7311872 A FR7311872 A FR 7311872A FR 7311872 A FR7311872 A FR 7311872A FR 2224770 A1 FR2224770 A1 FR 2224770A1
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/10—Mirrors with curved faces
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7311872A FR2224770B1 (fr) | 1973-04-03 | 1973-04-03 | |
US05/454,283 US3995153A (en) | 1973-03-04 | 1974-03-25 | Optical projectors |
DE2414783A DE2414783A1 (de) | 1973-04-03 | 1974-03-27 | Projektionseinrichtung |
AT252774A AT342891B (de) | 1973-04-03 | 1974-03-27 | Projektionseinrichtung |
IL44512A IL44512A (en) | 1973-04-03 | 1974-03-27 | Optical projector |
DD177600A DD111474A5 (fr) | 1973-04-03 | 1974-04-01 | |
CH449874A CH582890A5 (fr) | 1973-04-03 | 1974-04-01 | |
AU67376/74A AU6737674A (en) | 1973-04-03 | 1974-04-01 | Projectors |
ES424878A ES424878A1 (es) | 1973-04-03 | 1974-04-02 | Dispositivo optico proyector. |
BR2614/74A BR7402614D0 (pt) | 1973-04-03 | 1974-04-02 | Projetor optico |
NL7404485A NL7404485A (fr) | 1973-04-03 | 1974-04-02 | |
BE2053521A BE813164A (fr) | 1973-04-03 | 1974-04-02 | Dispositif optique projecteur optimise a miroir conoide ou pyramidoide |
CA196,647A CA999278A (en) | 1973-04-03 | 1974-04-02 | Optical projector utilizing a conold or pyramidoid mirror |
IT68050/74A IT1011678B (it) | 1973-04-03 | 1974-04-02 | Proiettore di luce a specchio conoide o piramidoide |
JP49037766A JPS5042860A (fr) | 1973-04-03 | 1974-04-03 | |
GB1486174A GB1466731A (en) | 1973-04-03 | 1974-04-03 | Optical projectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7311872A FR2224770B1 (fr) | 1973-04-03 | 1973-04-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2224770A1 true FR2224770A1 (fr) | 1974-10-31 |
FR2224770B1 FR2224770B1 (fr) | 1976-04-23 |
Family
ID=9117290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7311872A Expired FR2224770B1 (fr) | 1973-03-04 | 1973-04-03 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2224770B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0196959A1 (fr) * | 1985-03-19 | 1986-10-08 | MALIFAUD, Pierre | Projecteur de rayonnement produisant un flux à haut rendement utile et à haute homogénéité dans des angles d'ouverture contrôles, notamment à partir d'une source ponctuelle ou quasi-ponctuelle |
-
1973
- 1973-04-03 FR FR7311872A patent/FR2224770B1/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0196959A1 (fr) * | 1985-03-19 | 1986-10-08 | MALIFAUD, Pierre | Projecteur de rayonnement produisant un flux à haut rendement utile et à haute homogénéité dans des angles d'ouverture contrôles, notamment à partir d'une source ponctuelle ou quasi-ponctuelle |
FR2588669A1 (fr) * | 1985-03-19 | 1987-04-17 | Malifaud Pierre | Projecteur de rayonnement produisant un flux a haut rendement utile et a haute homogeneite dans des angles d'ouvertures controles, notamment a partir d'une source ponctuelle ou quasi-ponctuelle |
Also Published As
Publication number | Publication date |
---|---|
FR2224770B1 (fr) | 1976-04-23 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses | ||
TP | Transmission of property | ||
TP | Transmission of property | ||
ST | Notification of lapse |