BE416489A - - Google Patents
Info
- Publication number
- BE416489A BE416489A BE416489DA BE416489A BE 416489 A BE416489 A BE 416489A BE 416489D A BE416489D A BE 416489DA BE 416489 A BE416489 A BE 416489A
- Authority
- BE
- Belgium
- Prior art keywords
- posometer
- contact
- resistance
- adjustment
- rings
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 235000004391 Chenopodium capitatum Nutrition 0.000 claims description 2
- 244000038022 Chenopodium capitatum Species 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 1
- 239000011521 glass Substances 0.000 description 7
- 239000005338 frosted glass Substances 0.000 description 5
- 230000011514 reflex Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000005337 ground glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE416489A true BE416489A (enrdf_load_stackoverflow) |
Family
ID=79399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE416489D BE416489A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE416489A (enrdf_load_stackoverflow) |
-
0
- BE BE416489D patent/BE416489A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2342819A (en) | Photographic camera | |
| FR2483633A1 (fr) | Dispositif compensateur pour commande de diaphragme dans un appareil photographique reflex mono-objectif du type a objectif interchangeable | |
| BE416489A (enrdf_load_stackoverflow) | ||
| US2960921A (en) | Photographic camera | |
| US2825271A (en) | Exposure meter device for photography | |
| US2419474A (en) | Apparatus for taking photographs | |
| US2126338A (en) | Exposure control for photographic apparatus | |
| US2149384A (en) | View finder for photographic cameras | |
| FR2476334A1 (fr) | Procede de compensation pour la commande du diaphragme d'un appareil photographique reflex mono-objectif du type a objectifs interchangeables et objectif interchangeable utilisable pour la mise en oeuvre de ce procede | |
| US4132891A (en) | Exposure measuring system for microscope attached cameras | |
| US1854132A (en) | Combination focusing and exposure device | |
| FR2541788A1 (fr) | Procede de commande d'exposition et procede d'affichage d'une valeur de diaphragme et d'une vitesse d'obturation | |
| US2442327A (en) | Reflex camera with erecting and reducing optical finder system | |
| FR1464308A (fr) | Dispositif indicateur de la profondeur de champ | |
| BE391010A (enrdf_load_stackoverflow) | ||
| US2140260A (en) | Camera adjusting mechanism | |
| US3058408A (en) | Depth of focus indicator | |
| DE655674C (de) | Vereinigter Entfernungs- und Belichtungsmesser | |
| US1968476A (en) | Focusing means for cameras | |
| FR2842612A1 (fr) | Dispositif optique d'observation | |
| FR2507315A1 (fr) | Procede de mesure de la lumiere incidente au moyen d'un appareil photographique ou cinematographique muni d'un photometre interne et diffuseur utilisable a cette fin | |
| Smith et al. | An application of the radiometer: A registering microphotometer | |
| SU42328A1 (ru) | Прибор дл фотографического исследовани внутренней поверхности полых тел и буровых скважин | |
| CH309584A (fr) | Appareil photographique avec indicateur de pose faisant corps avec lui. | |
| JPS6235090B2 (enrdf_load_stackoverflow) |