JPS57154219A - Reader - Google Patents
ReaderInfo
- Publication number
- JPS57154219A JPS57154219A JP56040616A JP4061681A JPS57154219A JP S57154219 A JPS57154219 A JP S57154219A JP 56040616 A JP56040616 A JP 56040616A JP 4061681 A JP4061681 A JP 4061681A JP S57154219 A JPS57154219 A JP S57154219A
- Authority
- JP
- Japan
- Prior art keywords
- read
- mirror
- varied
- original
- reflected
- 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.)
- Pending
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
PURPOSE:To keep an individual read width unvaried even if a space between an original and a read head is varied, by placing plural telecentric image formation lenses by spacially separating them through a half-mirror. CONSTITUTION:A luminous flux from a read line 7 of an original 1 illuminated by an illuminating lamp 2 is split in accordance with solid image pickup elements 5a, 5b, one of them transmits a half-mirror 12 and is reflected by a reflector 13, the other is reflected by the half-mirror 12, and they are made to form an image on the solid image pickup elements a, 5b by telecentric image formation lenses 10a, 10b, and are read. In this way, even if a space between the original and the read head is varied, individual read width is not varied.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56040616A JPS57154219A (en) | 1981-03-19 | 1981-03-19 | Reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56040616A JPS57154219A (en) | 1981-03-19 | 1981-03-19 | Reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57154219A true JPS57154219A (en) | 1982-09-24 |
Family
ID=12585454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56040616A Pending JPS57154219A (en) | 1981-03-19 | 1981-03-19 | Reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57154219A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140769A (en) * | 1983-01-25 | 1984-08-13 | エヌ・ベ−・フイリップス・フル−イランペンファブリケン | Document optical scanner |
US5729331A (en) * | 1993-06-30 | 1998-03-17 | Nikon Corporation | Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus |
US6157497A (en) * | 1993-06-30 | 2000-12-05 | Nikon Corporation | Exposure apparatus |
-
1981
- 1981-03-19 JP JP56040616A patent/JPS57154219A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59140769A (en) * | 1983-01-25 | 1984-08-13 | エヌ・ベ−・フイリップス・フル−イランペンファブリケン | Document optical scanner |
US5729331A (en) * | 1993-06-30 | 1998-03-17 | Nikon Corporation | Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus |
US6157497A (en) * | 1993-06-30 | 2000-12-05 | Nikon Corporation | Exposure apparatus |
US6351305B1 (en) | 1993-06-30 | 2002-02-26 | Nikon Corporation | Exposure apparatus and exposure method for transferring pattern onto a substrate |
US6480262B1 (en) | 1993-06-30 | 2002-11-12 | Nikon Corporation | Illumination optical apparatus for illuminating a mask, method of manufacturing and using same, and field stop used therein |
US6509954B1 (en) | 1993-06-30 | 2003-01-21 | Nikon Corporation | Aperture stop having central aperture region defined by a circular ARC and peripheral region with decreased width, and exposure apparatus and method |
US6556278B1 (en) | 1993-06-30 | 2003-04-29 | Nikon Corporation | Exposure/imaging apparatus and method in which imaging characteristics of a projection optical system are adjusted |
US6795169B2 (en) | 1993-06-30 | 2004-09-21 | Nikon Corporation | Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus |
US7023527B2 (en) | 1993-06-30 | 2006-04-04 | Nikon Corporation | Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus |
US7088425B2 (en) | 1993-06-30 | 2006-08-08 | Nikon Corporation | Exposure apparatus, optical projection apparatus and a method for adjusting the optical projection apparatus |
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