BE638086A - - Google Patents
Info
- Publication number
- BE638086A BE638086A BE638086DA BE638086A BE 638086 A BE638086 A BE 638086A BE 638086D A BE638086D A BE 638086DA BE 638086 A BE638086 A BE 638086A
- Authority
- BE
- Belgium
- Prior art keywords
- light
- document
- light source
- photocell
- intensity
- Prior art date
Links
- 238000005286 illumination Methods 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 235000014676 Phragmites communis Nutrition 0.000 claims 1
- 239000004020 conductor Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000007423 decrease Effects 0.000 description 12
- 230000033458 reproduction Effects 0.000 description 8
- 230000005284 excitation Effects 0.000 description 6
- 238000010304 firing Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 241000531891 Alburnus alburnus Species 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000000709 aorta Anatomy 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002002 slurry Substances 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
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Projection-Type Copiers In General (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE638086A true BE638086A (enEXAMPLES) |
Family
ID=203246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE638086D BE638086A (enEXAMPLES) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE638086A (enEXAMPLES) |
-
0
- BE BE638086D patent/BE638086A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2468150A1 (fr) | Systeme automatique de commande de la polarisation de l'electrode de developpement et du reperage du papier de tirage dans un copieur electrophotographique | |
| US3635555A (en) | Electrophotographic copying device | |
| FR2656934A1 (fr) | Dispositif de commande de deplacement lateral pour une bande sans fin et appareil de fixage d'images l'utilisant. | |
| FR2740568A1 (fr) | Appareil de formation d'images | |
| FR2495345A1 (fr) | Photocopieur a entrainement du systeme d'analyse | |
| IL46565A (en) | Electrophotographic copying apparatus with leading edge image control | |
| FR2589594A1 (fr) | Appareil de commande de charge et de polarisation pour copieur electrophotographique | |
| FR2474178A1 (fr) | Systeme de commande d'exposition photographique et d'amorcage de flash | |
| US3864035A (en) | Shutterless camera system | |
| US3279312A (en) | Automatic exposure control for photographic copiers | |
| FR2569875A1 (fr) | Appareil de reproduction par projection d'ions | |
| BE638086A (enEXAMPLES) | ||
| US3609038A (en) | Electronic control apparatus | |
| FR2472202A1 (enEXAMPLES) | ||
| FR2584504A1 (fr) | Procede de determination automatique de l'exposition d'un film radiographique, et dispositif exposeur automatique pour installation de radiodiagnostic mettant en oeuvre ledit procede | |
| JPS59100429A (ja) | 露光用移動体の駆動装置 | |
| US3650624A (en) | Photographic printer with automatic exposure control | |
| CA1326526C (en) | Exposure control with fixed time exposure at high light levels | |
| US3973956A (en) | Electrophotographic process employing signal comparison | |
| US3748974A (en) | Camera apparatus for controlling diaphragm and shutter speed | |
| FR2500646A1 (fr) | Appareil de reproduction multifonctions | |
| GB1571818A (en) | Photographic exposure control apparatus | |
| US3842423A (en) | Exposure control apparatus | |
| US3903529A (en) | Exposure value controlling apparatus | |
| GB2066983A (en) | Variable magnification photocopier |