JPS5590902A - Projector - Google Patents

Projector

Info

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
Application number
JP16588978A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Midorikawa
Atsuo Tsunoda
Hidetoshi Murase
Noritaka Mochizuki
Setsuo Minami
Yoshiya Matsui
Masazumi Moriwaki
Mikio Suzuta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP16588978A priority Critical patent/JPS5590902A/en
Priority to DE2951452A priority patent/DE2951452A1/en
Priority to US06/105,789 priority patent/US4275962A/en
Priority to GB7944021A priority patent/GB2042759B/en
Priority to FR7931862A priority patent/FR2445544B1/en
Publication of JPS5590902A publication Critical patent/JPS5590902A/en
Pending legal-status Critical Current

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
JP16588978A 1978-12-28 1978-12-28 Projector Pending JPS5590902A (en)

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)

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