FR706347A - Objectif de projection - Google Patents
Objectif de projectionInfo
- Publication number
- FR706347A FR706347A FR706347DA FR706347A FR 706347 A FR706347 A FR 706347A FR 706347D A FR706347D A FR 706347DA FR 706347 A FR706347 A FR 706347A
- Authority
- FR
- France
- Prior art keywords
- projection lens
- lens
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
- G02B9/12—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having three components only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR706347T | 1930-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR706347A true FR706347A (fr) | 1931-06-23 |
Family
ID=9067719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR706347D Expired FR706347A (fr) | 1930-11-25 | 1930-11-25 | Objectif de projection |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR706347A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2625856A (en) * | 1949-09-03 | 1953-01-20 | American Optical Corp | Telecentric objective |
-
1930
- 1930-11-25 FR FR706347D patent/FR706347A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2625856A (en) * | 1949-09-03 | 1953-01-20 | American Optical Corp | Telecentric objective |
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