DE1070843B - - Google Patents
Info
- Publication number
- DE1070843B DE1070843B DENDAT1070843D DE1070843DA DE1070843B DE 1070843 B DE1070843 B DE 1070843B DE NDAT1070843 D DENDAT1070843 D DE NDAT1070843D DE 1070843D A DE1070843D A DE 1070843DA DE 1070843 B DE1070843 B DE 1070843B
- Authority
- DE
- Germany
- Prior art keywords
- potentiometer
- resistance
- bridge
- formula
- exposure meter
- 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.)
- Pending
Links
- 230000035945 sensitivity Effects 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000002250 progressing effect Effects 0.000 claims 1
- 238000010079 rubber tapping Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 13
- 238000005259 measurement Methods 0.000 description 6
- 210000000056 organ Anatomy 0.000 description 3
- 210000002457 barrier cell Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010276 construction Methods 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
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
- G01J1/4214—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for view-taking apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Adjustable Resistors (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1070843B true DE1070843B (no) | 1959-12-10 |
Family
ID=595643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1070843D Pending DE1070843B (no) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1070843B (no) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188931B (de) * | 1957-06-22 | 1965-03-11 | Agfa Ag | Fotoelektrische Einrichtung zur selbsttaetigen Steuerung einer im Objektivstrahlengang eines fotografischen Geraetes angeordneten Blende |
-
0
- DE DENDAT1070843D patent/DE1070843B/de active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188931B (de) * | 1957-06-22 | 1965-03-11 | Agfa Ag | Fotoelektrische Einrichtung zur selbsttaetigen Steuerung einer im Objektivstrahlengang eines fotografischen Geraetes angeordneten Blende |
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