FR883656A - Dispositif de viseur optique - Google Patents
Dispositif de viseur optiqueInfo
- Publication number
- FR883656A FR883656A FR883656DA FR883656A FR 883656 A FR883656 A FR 883656A FR 883656D A FR883656D A FR 883656DA FR 883656 A FR883656 A FR 883656A
- Authority
- FR
- France
- Prior art keywords
- optical viewfinder
- viewfinder device
- optical
- viewfinder
- 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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR883656T | 1942-06-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR883656A true FR883656A (fr) | 1943-07-12 |
Family
ID=9374610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR883656D Expired FR883656A (fr) | 1942-06-29 | 1942-06-29 | Dispositif de viseur optique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR883656A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594756A (en) * | 1948-05-13 | 1952-04-29 | Karl A Fischer | Polarizing and optically staining dark field microscope |
-
1942
- 1942-06-29 FR FR883656D patent/FR883656A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2594756A (en) * | 1948-05-13 | 1952-04-29 | Karl A Fischer | Polarizing and optically staining dark field microscope |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR927267A (fr) | Dispositif de fixation | |
FR940402A (fr) | Objectif photographique | |
FR891212A (fr) | Dispositif à came réglable | |
FR944089A (fr) | Dispositif de découplage | |
FR883656A (fr) | Dispositif de viseur optique | |
FR897852A (fr) | Dispositif de commande | |
FR898315A (fr) | Système optique centré | |
FR977735A (fr) | Dispositif optique de visée | |
FR887942A (fr) | Appareil cinématographique avec dispositif stéréoscopique | |
FR897540A (fr) | Objectif photographique | |
FR919139A (fr) | Dispositif optique | |
FR897795A (fr) | Articulation optique | |
FR901657A (fr) | Dispositif de charnière | |
FR882803A (fr) | Dispositif de projection cinématographique | |
FR898695A (fr) | Dispositif de battage | |
FR889308A (fr) | Dispositif de décrottage | |
FR882838A (fr) | Dispositif thermostatique | |
FR1073413A (fr) | Dispositif de visée optique | |
FR887564A (fr) | Dispositif différentiel | |
FR893176A (fr) | Dispositif de sélection | |
FR889628A (fr) | Dispositif | |
FR941094A (fr) | Dispositif de filtration | |
FR899281A (fr) | Dispositif de développement des bandes de pellicule photographique | |
FR977089A (fr) | Dispositif pour prises de vues cinématographiques | |
FR977808A (fr) | Dispositif pour prises de vues cinématographiques |