JPS5590902A - Projector - Google Patents
ProjectorInfo
- Publication number
- JPS5590902A JPS5590902A JP16588978A JP16588978A JPS5590902A JP S5590902 A JPS5590902 A JP S5590902A JP 16588978 A JP16588978 A JP 16588978A JP 16588978 A JP16588978 A JP 16588978A JP S5590902 A JPS5590902 A JP S5590902A
- Authority
- JP
- Japan
- Prior art keywords
- light
- bar
- lens systems
- element lens
- telecentric
- 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
Abstract
PURPOSE: To miniaturize the apparatus by arraying the element lens systems consisting of the block bodies inserted with bar-form lenses in zigzag form in the projection system of the copying machine.
CONSTITUTION: A plurality of the element lens systems each comprising inserting the 1st bar-form lens 101 being telecentric on the exit side and 2nd bar-form lens 102 being telecentric on the incident side, which have a uniform diameter and whose respective optical axis direction lengths are 2W60 times the effective diameter into the hole penetrated into a light-absorptive or light-shieldable block body 112 and providing an intermediate field stop 104, are prepared. A plurality of the element lens systems are arrayed and bonded in zigzag form in which the adjoining steps deviate with each other by a half pitch, by means of light-absorptive or light-nontransmittable adhesive agents 122 or the like. Thereby, the projection optical system of superior uniformity of the light quantity distributions integrated in the scanning direction is formed at low cost.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16588978A JPS5590902A (en) | 1978-12-28 | 1978-12-28 | Projector |
DE2951452A DE2951452A1 (en) | 1978-12-28 | 1979-12-20 | PROJECTION DEVICE |
US06/105,789 US4275962A (en) | 1978-12-28 | 1979-12-20 | Projection device |
GB7944021A GB2042759B (en) | 1978-12-28 | 1979-12-21 | Projection device |
FR7931862A FR2445544B1 (en) | 1978-12-28 | 1979-12-27 | MULTIPLE OBJECTIVE PROJECTION DEVICE FOR COPY MACHINES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16588978A JPS5590902A (en) | 1978-12-28 | 1978-12-28 | Projector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5590902A true JPS5590902A (en) | 1980-07-10 |
Family
ID=15820891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16588978A Pending JPS5590902A (en) | 1978-12-28 | 1978-12-28 | Projector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590902A (en) |
-
1978
- 1978-12-28 JP JP16588978A patent/JPS5590902A/en active Pending
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