FR2730822B1 - Retroprojecteur et son procede de commande - Google Patents
Retroprojecteur et son procede de commandeInfo
- Publication number
- FR2730822B1 FR2730822B1 FR9601677A FR9601677A FR2730822B1 FR 2730822 B1 FR2730822 B1 FR 2730822B1 FR 9601677 A FR9601677 A FR 9601677A FR 9601677 A FR9601677 A FR 9601677A FR 2730822 B1 FR2730822 B1 FR 2730822B1
- Authority
- FR
- France
- Prior art keywords
- retroprojector
- control method
- control
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Controls And Circuits For Display Device (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9601677A FR2730822B1 (fr) | 1996-02-12 | 1996-02-12 | Retroprojecteur et son procede de commande |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9601677A FR2730822B1 (fr) | 1996-02-12 | 1996-02-12 | Retroprojecteur et son procede de commande |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2730822A1 FR2730822A1 (fr) | 1996-08-23 |
FR2730822B1 true FR2730822B1 (fr) | 1999-01-08 |
Family
ID=9489077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9601677A Expired - Fee Related FR2730822B1 (fr) | 1996-02-12 | 1996-02-12 | Retroprojecteur et son procede de commande |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2730822B1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60211573A (ja) * | 1984-04-04 | 1985-10-23 | Olympus Optical Co Ltd | 画像入力編集装置 |
GB8611554D0 (en) * | 1986-05-12 | 1986-06-18 | Crosfield Electronics Ltd | Image display |
JPH01191195A (ja) * | 1988-01-27 | 1989-08-01 | Toshiba Corp | 表示システム |
CA2060361A1 (fr) * | 1991-01-31 | 1992-08-01 | Masao Fukuda | Dispositif de commande d'affichage |
JP2959647B2 (ja) * | 1991-07-31 | 1999-10-06 | キヤノン株式会社 | 文書画像処理装置 |
-
1996
- 1996-02-12 FR FR9601677A patent/FR2730822B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2730822A1 (fr) | 1996-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC | Favourable decision of inpi director general on an application for restauration. | ||
RN | Application for restoration | ||
ST | Notification of lapse |