DE2139326C3 - Vorrichtung zur Beleuchtung einer Vorlagenebene, insbesondere für Kopiergeräte - Google Patents
Vorrichtung zur Beleuchtung einer Vorlagenebene, insbesondere für KopiergeräteInfo
- Publication number
- DE2139326C3 DE2139326C3 DE2139326A DE2139326A DE2139326C3 DE 2139326 C3 DE2139326 C3 DE 2139326C3 DE 2139326 A DE2139326 A DE 2139326A DE 2139326 A DE2139326 A DE 2139326A DE 2139326 C3 DE2139326 C3 DE 2139326C3
- Authority
- DE
- Germany
- Prior art keywords
- plane
- original
- angle
- reflector segment
- illumination
- 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
- 238000005286 illumination Methods 0.000 claims description 24
- 238000009826 distribution Methods 0.000 claims description 15
- 230000001154 acute effect Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 238000003384 imaging method Methods 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
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/54—Lamp housings; Illuminating means
- G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6826470A | 1970-08-31 | 1970-08-31 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2139326A1 DE2139326A1 (de) | 1972-03-09 |
| DE2139326B2 DE2139326B2 (de) | 1981-05-21 |
| DE2139326C3 true DE2139326C3 (de) | 1982-02-25 |
Family
ID=22081459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2139326A Expired DE2139326C3 (de) | 1970-08-31 | 1971-08-06 | Vorrichtung zur Beleuchtung einer Vorlagenebene, insbesondere für Kopiergeräte |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3669538A (enExample) |
| JP (1) | JPS5137008B1 (enExample) |
| CA (1) | CA952881A (enExample) |
| DE (1) | DE2139326C3 (enExample) |
| FR (1) | FR2101770A5 (enExample) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3765762A (en) * | 1971-09-24 | 1973-10-16 | Donnici K Li | Copying machine |
| DE2238944C3 (de) * | 1972-08-08 | 1981-10-29 | Agfa-Gevaert Ag, 5090 Leverkusen | Beleuchtungsvorrichtung in einem Kopiergerät |
| US3830591A (en) * | 1973-05-04 | 1974-08-20 | Eastman Kodak Co | Illumination apparatus |
| US3850523A (en) * | 1973-07-13 | 1974-11-26 | Minnesota Mining & Mfg | Photocopier light box |
| JPS5123724A (en) * | 1974-08-06 | 1976-02-25 | Ricoh Kk | Fukushakitoniokeru suritsutoshomeisochi |
| DE2452979C2 (de) * | 1974-11-08 | 1981-12-24 | Hoechst Ag, 6000 Frankfurt | Beleuchtungseinrichtung in einem Projektionskopiergerät |
| US4043662A (en) * | 1975-09-10 | 1977-08-23 | Garfall Peter J | Photographic light source |
| JPS5642666Y2 (enExample) * | 1976-07-09 | 1981-10-06 | ||
| US4086010A (en) * | 1976-11-01 | 1978-04-25 | Xerox Corporation | Illumination system utilizing two opposing DC lamps with an optimum barrel-shaped slit |
| USRE31499E (en) | 1976-11-01 | 1984-01-17 | Xerox Corporation | Illumination system utilizing two opposing DC lamps with an optimum barrel-shaped slit |
| JPS5392128A (en) * | 1977-01-25 | 1978-08-12 | Ricoh Co Ltd | Illuminator for copying machine |
| JPS6015052B2 (ja) * | 1977-10-12 | 1985-04-17 | キヤノン株式会社 | スリツト照明装置 |
| US4333723A (en) * | 1979-02-26 | 1982-06-08 | Xerox Corporation | Full frame flash illumination system utilizing a diffuse integrating optical cavity |
| US4298275A (en) * | 1980-01-07 | 1981-11-03 | Xerox Corporation | Radially varying transmission filter for wide angle copying device |
| US4298274A (en) * | 1980-01-07 | 1981-11-03 | Rees James D | Variable density filter for a multi-magnification copying device |
| JPS5726841A (en) * | 1980-07-24 | 1982-02-13 | Canon Inc | Scanning illumination device |
| US4445774A (en) * | 1982-04-30 | 1984-05-01 | Xerox Corporation | Document imaging system with improved exposure uniformity at image plane |
| JPS6046522A (ja) * | 1983-08-25 | 1985-03-13 | Masayasu Negishi | 光制御装置 |
| US4571058A (en) * | 1984-11-08 | 1986-02-18 | Xerox Corporation | Flash illumination and optical imaging system |
| US4661828A (en) * | 1985-03-20 | 1987-04-28 | Miller Jr Verelyn A | Optical imaging head |
| EP0216330B1 (de) * | 1985-09-27 | 1992-01-22 | Hoechst Aktiengesellschaft | Beleuchtungseinrichtung in einem Projektionskopiergerät |
| US4733279A (en) * | 1985-11-18 | 1988-03-22 | Fuji Photo Film Co., Ltd. | Microfilming camera |
| JPS6289639U (enExample) * | 1985-11-27 | 1987-06-08 | ||
| US4653901A (en) * | 1986-04-18 | 1987-03-31 | Xerox Corporation | Document imaging system using a three-dimensional relative illumination corrector |
| US4887123A (en) * | 1987-09-21 | 1989-12-12 | Opti-Copy, Incorporated | Boxlight for projection photoreproduction |
| JPH02275936A (ja) * | 1989-04-18 | 1990-11-09 | Brother Ind Ltd | 露光方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR954581A (enExample) * | 1950-01-03 | |||
| DE1284830B (de) * | 1967-11-30 | 1968-12-05 | Agfa Gevaert Ag | Mikrofilm-Aufnahmegeraet |
| US3586849A (en) * | 1968-05-24 | 1971-06-22 | Xerox Corp | Illumination system |
-
1970
- 1970-08-31 US US68264A patent/US3669538A/en not_active Expired - Lifetime
-
1971
- 1971-07-05 JP JP46048895A patent/JPS5137008B1/ja active Pending
- 1971-07-06 FR FR7126000A patent/FR2101770A5/fr not_active Expired
- 1971-08-06 DE DE2139326A patent/DE2139326C3/de not_active Expired
- 1971-08-11 CA CA120,463A patent/CA952881A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA952881A (en) | 1974-08-13 |
| DE2139326A1 (de) | 1972-03-09 |
| FR2101770A5 (enExample) | 1972-03-31 |
| JPS5137008B1 (enExample) | 1976-10-13 |
| DE2139326B2 (de) | 1981-05-21 |
| US3669538A (en) | 1972-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |