BE391010A - - Google Patents
Info
- Publication number
- BE391010A BE391010A BE391010DA BE391010A BE 391010 A BE391010 A BE 391010A BE 391010D A BE391010D A BE 391010DA BE 391010 A BE391010 A BE 391010A
- Authority
- BE
- Belgium
- Prior art keywords
- screen
- photometer
- exposure times
- transparent
- graduated
- Prior art date
Links
- 230000035945 sensitivity Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920002160 Celluloid Polymers 0.000 claims description 2
- 108010010803 Gelatin Proteins 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 239000008273 gelatin Substances 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 235000011852 gelatine desserts Nutrition 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 102100035472 DNA polymerase iota Human genes 0.000 claims 1
- 101001094672 Homo sapiens DNA polymerase iota Proteins 0.000 claims 1
- 241001125929 Trisopterus luscus Species 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 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
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/12—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using wholly visual means
- G01J1/122—Visual exposure meters for determining the exposure time in photographical recording or reproducing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE391010A true BE391010A (enrdf_load_stackoverflow) |
Family
ID=58863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE391010D BE391010A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE391010A (enrdf_load_stackoverflow) |
-
0
- BE BE391010D patent/BE391010A/fr unknown
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