FR571280A - Light projection device for all applications - Google Patents
Light projection device for all applicationsInfo
- Publication number
- FR571280A FR571280A FR571280DA FR571280A FR 571280 A FR571280 A FR 571280A FR 571280D A FR571280D A FR 571280DA FR 571280 A FR571280 A FR 571280A
- Authority
- FR
- France
- Prior art keywords
- applications
- projection device
- light projection
- light
- projection
- 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
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR571280T | 1923-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR571280A true FR571280A (en) | 1924-05-14 |
Family
ID=8950445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR571280D Expired FR571280A (en) | 1923-09-14 | 1923-09-14 | Light projection device for all applications |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR571280A (en) |
-
1923
- 1923-09-14 FR FR571280D patent/FR571280A/en not_active Expired
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