JPS6223855B2 - - Google Patents
Info
- Publication number
- JPS6223855B2 JPS6223855B2 JP3633679A JP3633679A JPS6223855B2 JP S6223855 B2 JPS6223855 B2 JP S6223855B2 JP 3633679 A JP3633679 A JP 3633679A JP 3633679 A JP3633679 A JP 3633679A JP S6223855 B2 JPS6223855 B2 JP S6223855B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- box
- light box
- lighting
- screen
- 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
- 239000000463 material Substances 0.000 claims description 16
- 229910052721 tungsten Inorganic materials 0.000 claims description 8
- 239000010937 tungsten Substances 0.000 claims description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 239000002872 contrast media Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 238000000149 argon plasma sintering Methods 0.000 claims 1
- 239000000839 emulsion Substances 0.000 description 8
- 238000005286 illumination Methods 0.000 description 4
- 239000011022 opal Substances 0.000 description 4
- -1 silver halide Chemical class 0.000 description 3
- 239000000975 dye Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001043 yellow dye 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
- G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)
-
- 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
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/54—Lamp housings; Illuminating means
- G03B27/545—Lamp housings; Illuminating means for enlargers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1262878 | 1978-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54133330A JPS54133330A (en) | 1979-10-17 |
| JPS6223855B2 true JPS6223855B2 (enrdf_load_stackoverflow) | 1987-05-26 |
Family
ID=10008205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3633679A Granted JPS54133330A (en) | 1978-03-31 | 1979-03-29 | Detachable illumination box |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS54133330A (enrdf_load_stackoverflow) |
| DE (1) | DE2912502A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR920007457Y1 (ko) * | 1990-10-10 | 1992-10-15 | 삼성전자 주식회사 | 일체형 열교환기 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1522265A1 (de) * | 1966-05-12 | 1969-08-14 | Simmon Brothers Inc | Beleuchtungseinrichtung fuer photographische Vergroesserungsgeraete |
| GB1539468A (en) * | 1977-07-04 | 1979-01-31 | Ciba Geigy Ag | Enlarger head lamphouse for printing variable contrast photographic material |
-
1979
- 1979-03-29 DE DE19792912502 patent/DE2912502A1/de not_active Ceased
- 1979-03-29 JP JP3633679A patent/JPS54133330A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2912502A1 (de) | 1979-10-11 |
| JPS54133330A (en) | 1979-10-17 |
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