JPS5583016A - Projector - Google Patents

Projector

Info

Publication number
JPS5583016A
JPS5583016A JP15728178A JP15728178A JPS5583016A JP S5583016 A JPS5583016 A JP S5583016A JP 15728178 A JP15728178 A JP 15728178A JP 15728178 A JP15728178 A JP 15728178A JP S5583016 A JPS5583016 A JP S5583016A
Authority
JP
Japan
Prior art keywords
lenses
face
optical axis
lens
block
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.)
Granted
Application number
JP15728178A
Other languages
Japanese (ja)
Other versions
JPS635724B2 (en
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 JP15728178A priority Critical patent/JPS5583016A/en
Publication of JPS5583016A publication Critical patent/JPS5583016A/en
Publication of JPS635724B2 publication Critical patent/JPS635724B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Lenses (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE: To let the device exhibit substantially the maximum efficiency of field lens and achieve the improvement in the brightness of the projected images by providing the compound eye lens device consisting of the two lenses of coaxial relations as a projecting optical system between the object face and projecting face in a copying apparatus, etc.
CONSTITUTION: Lens blocks 81 and 82 are provided between the object face D and projection face P being in an opposing relation. Each block consists of a plurality of telecentric lenses disposed in alignment to the optical axis and the length in the optical axis direction of the lenses is made larger than the effective diameter of each lens. Land portions 83, 84 forming a mask 85 are provided between the lenses opposing on the same optical axis. The incident light from the object face D is formed with intermediate images with the mask 85 through the lenses of the block 81, after which it is entered to the lenses of the block 82, the exit light whereof forms images on the projection face P. In this case, the faces D and P are relatively driven and their relative distance is fixed.
COPYRIGHT: (C)1980,JPO&Japio
JP15728178A 1978-12-18 1978-12-18 Projector Granted JPS5583016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15728178A JPS5583016A (en) 1978-12-18 1978-12-18 Projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15728178A JPS5583016A (en) 1978-12-18 1978-12-18 Projector

Publications (2)

Publication Number Publication Date
JPS5583016A true JPS5583016A (en) 1980-06-23
JPS635724B2 JPS635724B2 (en) 1988-02-04

Family

ID=15646223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15728178A Granted JPS5583016A (en) 1978-12-18 1978-12-18 Projector

Country Status (1)

Country Link
JP (1) JPS5583016A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013195826A (en) * 2012-03-21 2013-09-30 Kyocera Optec Co Ltd Erecting equal magnification lens array unit and image reading device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013195826A (en) * 2012-03-21 2013-09-30 Kyocera Optec Co Ltd Erecting equal magnification lens array unit and image reading device

Also Published As

Publication number Publication date
JPS635724B2 (en) 1988-02-04

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