GB1522967A - Illuminator for copying machines - Google Patents
Illuminator for copying machinesInfo
- Publication number
- GB1522967A GB1522967A GB3892275A GB3892275A GB1522967A GB 1522967 A GB1522967 A GB 1522967A GB 3892275 A GB3892275 A GB 3892275A GB 3892275 A GB3892275 A GB 3892275A GB 1522967 A GB1522967 A GB 1522967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- envelope
- illuminator
- light
- centre
- document
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- 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
Abstract
1522967 Lamps XEROX CORP 23 Sept 1975 38922/75 Heading F4R A copying machine has an illuminator comprising an elongate envelope 10 having a narrow longitudinally extending window 12 through which light can leave the envelope and light sources 13, 14 arranged to direct light into the envelope from both ends, each source including an ellipsoidal reflector 13b, 14b having its periphery juxtaposed to a respective end of the envelope and the document to be copied being so located that lines drawn from points on the peripheries of the reflectors opposite the centre of the window to pass through the images 20, 21 of the light emitting elements intersect at a point 22 adjacent the centre of the copiable portion of the document.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3892275A GB1522967A (en) | 1975-09-23 | 1975-09-23 | Illuminator for copying machines |
NL7610340A NL7610340A (en) | 1975-09-23 | 1976-09-16 | LIGHTING DEVICE. |
DE19762642459 DE2642459A1 (en) | 1975-09-23 | 1976-09-21 | LIGHTING DEVICE FOR EXPOSING A DOCUMENT TO BE COPIED |
CA261,749A CA1072068A (en) | 1975-09-23 | 1976-09-22 | Copy machine illuminator |
JP11454976A JPS5263339A (en) | 1975-09-23 | 1976-09-24 | Illumination apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3892275A GB1522967A (en) | 1975-09-23 | 1975-09-23 | Illuminator for copying machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1522967A true GB1522967A (en) | 1978-08-31 |
Family
ID=10406504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3892275A Expired GB1522967A (en) | 1975-09-23 | 1975-09-23 | Illuminator for copying machines |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5263339A (en) |
CA (1) | CA1072068A (en) |
DE (1) | DE2642459A1 (en) |
GB (1) | GB1522967A (en) |
NL (1) | NL7610340A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3524239A1 (en) * | 1985-07-06 | 1987-01-15 | Agfa Gevaert Ag | Illuminating device for uniform illumination of a surface |
US4868383A (en) * | 1988-09-08 | 1989-09-19 | Eastman Kodak Company | Linear integrating cavity light source used for generating an intense beam of light |
-
1975
- 1975-09-23 GB GB3892275A patent/GB1522967A/en not_active Expired
-
1976
- 1976-09-16 NL NL7610340A patent/NL7610340A/en not_active Application Discontinuation
- 1976-09-21 DE DE19762642459 patent/DE2642459A1/en not_active Withdrawn
- 1976-09-22 CA CA261,749A patent/CA1072068A/en not_active Expired
- 1976-09-24 JP JP11454976A patent/JPS5263339A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
NL7610340A (en) | 1977-03-25 |
DE2642459A1 (en) | 1977-03-31 |
CA1072068A (en) | 1980-02-19 |
JPS5263339A (en) | 1977-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |