GB1319681A - Electrophotography - Google Patents
ElectrophotographyInfo
- Publication number
- GB1319681A GB1319681A GB2863070A GB2863070A GB1319681A GB 1319681 A GB1319681 A GB 1319681A GB 2863070 A GB2863070 A GB 2863070A GB 2863070 A GB2863070 A GB 2863070A GB 1319681 A GB1319681 A GB 1319681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- copying
- lamps
- june
- original
- 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
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
-
- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0105—Details of unit
- G03G15/011—Details of unit for exposing
-
- 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
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
1319681 Copying lamp CANON KK and DAI NIPPON TOKYO KK 12 June 1970 [12 June 1969] 28630/70 Heading F4R [Also in Divisions G2 and H1] An electrostatic copier comprises a plurality of light sources operable to emit light in different parts of the spectrum respectively. As shown fluorescent lamps 31-34 having reflectors 51-54 are rotatably mounted in a thermostatically controlled air-cooled housing 6 so that a selected lamp can be positioned adjacent a lens 9 to illuminate an original to be copied. The original may be illuminated by a single lamp for monochromatic copying or by each lamp in turn for polychromatic copying. Two sets of lamps may be used. The lighting arrangement may alternatively comprise a single annular lamp coated with different phosphors (Fig. 3A, not shown) or a number of arcuate lamps arranged in a circle (Fig. 36, not shown).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4659469 | 1969-06-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1319681A true GB1319681A (en) | 1973-06-06 |
Family
ID=12751609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2863070A Expired GB1319681A (en) | 1969-06-12 | 1970-06-12 | Electrophotography |
Country Status (2)
Country | Link |
---|---|
US (1) | US3682539A (en) |
GB (1) | GB1319681A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4940140A (en) * | 1972-08-18 | 1974-04-15 | ||
US3782821A (en) * | 1972-11-10 | 1974-01-01 | Raymond Lee Organization Inc | Photographic enlarger |
US4099865A (en) * | 1977-03-23 | 1978-07-11 | Knippenberg Gerald V | Method and apparatus for making color separations from a color transparency |
FR2479996A1 (en) * | 1980-04-02 | 1981-10-09 | Chamoux Jean Pierre | AUTHENTICABLE REPRODUCTION DEVICE OF ORIGINAL BASE DOCUMENT |
US5057861A (en) * | 1987-11-28 | 1991-10-15 | Dainippon Screen Mfg. Co. Ltd. | Color image recorder and image projector useful therefor |
US5295003A (en) * | 1991-03-13 | 1994-03-15 | Lee Aldric K | Color conversion system for monochromatic optical scanner |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2747459A (en) * | 1948-12-02 | 1956-05-29 | George L Morrison | Photographic apparatus |
GB983044A (en) * | 1961-07-27 | 1965-02-10 | Arthur Leonard Sparks | Improvements in lamp housings for use in connection with photographic copying apparatus |
US3345509A (en) * | 1964-11-23 | 1967-10-03 | William C Dauser | Multi-color lamp |
-
1970
- 1970-06-08 US US44382A patent/US3682539A/en not_active Expired - Lifetime
- 1970-06-12 GB GB2863070A patent/GB1319681A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2029133A1 (en) | 1971-02-11 |
DE2029133B2 (en) | 1976-07-15 |
US3682539A (en) | 1972-08-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |