FR866777A - Improvements to electro-optical telescopes - Google Patents
Improvements to electro-optical telescopesInfo
- Publication number
- FR866777A FR866777A FR866777DA FR866777A FR 866777 A FR866777 A FR 866777A FR 866777D A FR866777D A FR 866777DA FR 866777 A FR866777 A FR 866777A
- Authority
- FR
- France
- Prior art keywords
- electro
- optical telescopes
- telescopes
- optical
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J31/506—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR866777T | 1940-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR866777A true FR866777A (en) | 1941-09-03 |
Family
ID=9345174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR866777D Expired FR866777A (en) | 1940-05-03 | 1940-05-03 | Improvements to electro-optical telescopes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR866777A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922922A (en) * | 1956-05-12 | 1960-01-26 | Nat Res Dev | Electron optical devices |
-
1940
- 1940-05-03 FR FR866777D patent/FR866777A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2922922A (en) * | 1956-05-12 | 1960-01-26 | Nat Res Dev | Electron optical devices |
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