JPS649437A - Reflector for illuminating original - Google Patents
Reflector for illuminating originalInfo
- Publication number
- JPS649437A JPS649437A JP16403887A JP16403887A JPS649437A JP S649437 A JPS649437 A JP S649437A JP 16403887 A JP16403887 A JP 16403887A JP 16403887 A JP16403887 A JP 16403887A JP S649437 A JPS649437 A JP S649437A
- Authority
- JP
- Japan
- Prior art keywords
- reflectance
- plate
- reflecter
- distribution
- light quantity
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 abstract 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000004040 coloring Methods 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
Landscapes
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
PURPOSE:To remove the uneveness of light quantity, to simplify the structure and to facilitate duplication by constituting a reflecter for illuminating an original of a pre-sensitived printing plate (PS plate) where ink is piled so that reflectance is made low in its central part and high in its peripheral part. CONSTITUTION:The reflecter 26 constituted of the PS plate whose reflectance distribution is low in the central part and high in the peripheral part according to the distribution of the light quantity of a fluorescent lamp 25 is provided in an electrophotomechanical process machine. If an original 24 is illuminated with the direct light from the fluorescent lamp 25 and the reflected light beams from the reflecter 26, the distribution of light quantity becomes uniform with respect to the master paper of a photographing part 1 and the unevenness of density does not occur in a process image. And by coating black spray paint on the surface of an untransmissive aluminum plate 27 and coloring the central part in black, the reflectance is made small and by leaving both end parts on the outside white, the reflectance is made large. The fluorescent lamps 25 are arranged in parallel with the plate 27 and they are lighted so as to execute a field test, so that the unevenness of density of exposure does not occur in the master paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62164038A JPH087388B2 (en) | 1987-07-02 | 1987-07-02 | Method for manufacturing reflector for document illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62164038A JPH087388B2 (en) | 1987-07-02 | 1987-07-02 | Method for manufacturing reflector for document illumination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS649437A true JPS649437A (en) | 1989-01-12 |
| JPH087388B2 JPH087388B2 (en) | 1996-01-29 |
Family
ID=15785621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62164038A Expired - Fee Related JPH087388B2 (en) | 1987-07-02 | 1987-07-02 | Method for manufacturing reflector for document illumination |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH087388B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03111899A (en) * | 1989-09-26 | 1991-05-13 | Sekisui Chem Co Ltd | Voice lock device |
| US10581303B2 (en) | 2015-03-27 | 2020-03-03 | Mitsui High-Tec, Inc. | Laminated iron core and manufacturing method of laminated iron core |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441632U (en) * | 1977-08-29 | 1979-03-20 | ||
| JPS6189847U (en) * | 1984-11-16 | 1986-06-11 |
-
1987
- 1987-07-02 JP JP62164038A patent/JPH087388B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441632U (en) * | 1977-08-29 | 1979-03-20 | ||
| JPS6189847U (en) * | 1984-11-16 | 1986-06-11 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03111899A (en) * | 1989-09-26 | 1991-05-13 | Sekisui Chem Co Ltd | Voice lock device |
| US10581303B2 (en) | 2015-03-27 | 2020-03-03 | Mitsui High-Tec, Inc. | Laminated iron core and manufacturing method of laminated iron core |
| US11632023B2 (en) | 2015-03-27 | 2023-04-18 | Mitsui High-Tec, Inc. | Laminated iron core and manufacturing method of laminated iron core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH087388B2 (en) | 1996-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |