FR1311935A - Visionneuse à grandissement variable - Google Patents
Visionneuse à grandissement variableInfo
- Publication number
- FR1311935A FR1311935A FR877384A FR877384A FR1311935A FR 1311935 A FR1311935 A FR 1311935A FR 877384 A FR877384 A FR 877384A FR 877384 A FR877384 A FR 877384A FR 1311935 A FR1311935 A FR 1311935A
- Authority
- FR
- France
- Prior art keywords
- variable magnification
- magnification viewer
- viewer
- variable
- magnification
- 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
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
- G03B21/10—Projectors with built-in or built-on screen
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR877384A FR1311935A (fr) | 1961-10-30 | 1961-10-30 | Visionneuse à grandissement variable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR877384A FR1311935A (fr) | 1961-10-30 | 1961-10-30 | Visionneuse à grandissement variable |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1311935A true FR1311935A (fr) | 1962-12-14 |
Family
ID=8765617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR877384A Expired FR1311935A (fr) | 1961-10-30 | 1961-10-30 | Visionneuse à grandissement variable |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1311935A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002021206A1 (fr) * | 2000-09-07 | 2002-03-14 | Guy Spencer Edney | Unite de projection |
-
1961
- 1961-10-30 FR FR877384A patent/FR1311935A/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002021206A1 (fr) * | 2000-09-07 | 2002-03-14 | Guy Spencer Edney | Unite de projection |
US6995906B2 (en) | 2000-09-07 | 2006-02-07 | Guy Spencer Edney | Projection unit |
CN1308767C (zh) * | 2000-09-07 | 2007-04-04 | 盖伊·斯潘塞·埃德尼 | 投影组件 |
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