DE3882225D1 - Elektrophotographisches kopiergeraet mit selbstspulendem belichtungsvorhang. - Google Patents
Elektrophotographisches kopiergeraet mit selbstspulendem belichtungsvorhang.Info
- Publication number
- DE3882225D1 DE3882225D1 DE8888910202T DE3882225T DE3882225D1 DE 3882225 D1 DE3882225 D1 DE 3882225D1 DE 8888910202 T DE8888910202 T DE 8888910202T DE 3882225 T DE3882225 T DE 3882225T DE 3882225 D1 DE3882225 D1 DE 3882225D1
- Authority
- DE
- Germany
- Prior art keywords
- reeling
- self
- electrophotographic copier
- curtain
- exposure
- 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 - Fee Related
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording 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
- G03B27/542—Lamp housings; Illuminating means for copying cameras, reflex exposure lighting
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/108,603 US4801969A (en) | 1987-10-15 | 1987-10-15 | Self-coiling exposure shade |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3882225D1 true DE3882225D1 (de) | 1993-08-12 |
DE3882225T2 DE3882225T2 (de) | 1994-02-10 |
Family
ID=22323109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88910202T Expired - Fee Related DE3882225T2 (de) | 1987-10-15 | 1988-10-05 | Elektrophotographisches kopiergerät mit selbstspulendem belichtungsvorhang. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4801969A (de) |
EP (1) | EP0348455B1 (de) |
JP (1) | JPH02501682A (de) |
DE (1) | DE3882225T2 (de) |
WO (1) | WO1989003547A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4987441A (en) * | 1988-06-06 | 1991-01-22 | Polaroid Corporation | Compact hand-held apparatus for copying an illuminated image |
US5016047A (en) * | 1990-07-05 | 1991-05-14 | Nuarc Company, Inc. | Light-modifying apparatus for exposure devices |
DE59103870D1 (de) * | 1990-08-17 | 1995-01-26 | Gretag Imaging Ag | Belichtungssteuerungsverfahren und fotografisches Kopiergerät. |
US5946532A (en) * | 1995-04-20 | 1999-08-31 | Asahi Kogaku Kogyo Kabushiki Kaisha | Variable magnification optical system with light shielding mechanism |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807856A (en) * | 1969-09-26 | 1974-04-30 | Scm Corp | Illumination system for a photocopying machine |
US3677633A (en) * | 1969-12-31 | 1972-07-18 | Xerox Corp | Portable document abstractor |
JPS5036983B1 (de) * | 1970-12-30 | 1975-11-28 | ||
US3724944A (en) * | 1971-10-01 | 1973-04-03 | Ricoh Kk | Light intercepting screen winding and paying-out device for copying machines |
JPS5437502B2 (de) * | 1973-08-06 | 1979-11-15 | ||
US4050812A (en) * | 1975-04-15 | 1977-09-27 | Ricoh Co., Ltd. | Light shield curtain assembly for reciprocating optical scanning head |
JPS51148430A (en) * | 1975-06-16 | 1976-12-20 | Hitachi Ltd | Lens automatic exchanger |
US4129373A (en) * | 1976-09-09 | 1978-12-12 | Ricoh Company, Ltd. | Electrophotographic apparatus |
JPS5832685B2 (ja) * | 1977-12-02 | 1983-07-14 | 旭光学工業株式会社 | 低倍率可変画角レンズ系 |
JPS5850326B2 (ja) * | 1977-12-02 | 1983-11-10 | 旭光学工業株式会社 | 歪曲収差の小さなズ−ムレンズ |
JPS55120065A (en) * | 1979-03-09 | 1980-09-16 | Ricoh Co Ltd | Electrophotographic copier |
JPS5642246A (en) * | 1979-09-14 | 1981-04-20 | Ricoh Co Ltd | Exposing unit in electrophotographic copier |
JPS6042451B2 (ja) * | 1981-12-07 | 1985-09-21 | マミヤ光機株式会社 | 広角ズ−ムレンズ |
JPS58132209A (ja) * | 1982-02-01 | 1983-08-06 | Canon Inc | 広角ズ−ムレンズ |
IT1212977B (it) * | 1983-02-10 | 1989-12-07 | Olivetti & Co Spa | Macchina copiatrice elettrofotogra fica |
JPS6055310A (ja) * | 1983-09-06 | 1985-03-30 | Asahi Optical Co Ltd | 可変焦点距離レンズ光学系における焦点調節方法 |
JPS61231517A (ja) * | 1985-04-05 | 1986-10-15 | Canon Inc | 可変焦点距離レンズ |
JPS61240217A (ja) * | 1985-04-17 | 1986-10-25 | Asahi Optical Co Ltd | コンパクトな広角ズ−ムレンズ |
JPS6250718A (ja) * | 1985-08-29 | 1987-03-05 | Nippon Kogaku Kk <Nikon> | 2群構成ズ−ムレンズ |
JPH0792546B2 (ja) * | 1986-07-18 | 1995-10-09 | キヤノン株式会社 | 小型のズ−ムレンズ |
JPS63210907A (ja) * | 1987-02-27 | 1988-09-01 | Asahi Optical Co Ltd | コンパクトで明るい広角ズ−ムレンズ |
-
1987
- 1987-10-15 US US07/108,603 patent/US4801969A/en not_active Expired - Lifetime
-
1988
- 1988-10-05 EP EP88910202A patent/EP0348455B1/de not_active Expired - Lifetime
- 1988-10-05 WO PCT/US1988/003391 patent/WO1989003547A1/en active IP Right Grant
- 1988-10-05 DE DE88910202T patent/DE3882225T2/de not_active Expired - Fee Related
- 1988-10-05 JP JP63509316A patent/JPH02501682A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US4801969A (en) | 1989-01-31 |
EP0348455B1 (de) | 1993-07-07 |
DE3882225T2 (de) | 1994-02-10 |
EP0348455A1 (de) | 1990-01-03 |
JPH02501682A (ja) | 1990-06-07 |
WO1989003547A1 (en) | 1989-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: NEXPRESS SOLUTIONS LLC, ROCHESTER, N.Y., US |
|
8328 | Change in the person/name/address of the agent |
Free format text: FEY, H., DIPL.-PHYS., PAT.-ANW., 69115 HEIDELBERG |
|
8339 | Ceased/non-payment of the annual fee |