JPS56161511A - Lamellar lens unit for copying machine - Google Patents

Lamellar lens unit for copying machine

Info

Publication number
JPS56161511A
JPS56161511A JP6461080A JP6461080A JPS56161511A JP S56161511 A JPS56161511 A JP S56161511A JP 6461080 A JP6461080 A JP 6461080A JP 6461080 A JP6461080 A JP 6461080A JP S56161511 A JPS56161511 A JP S56161511A
Authority
JP
Japan
Prior art keywords
lens unit
lenses
lamellar
copying machine
inexpensive
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
JP6461080A
Other languages
Japanese (ja)
Inventor
Nobuhiko Nakagawa
Hidenori Ito
Yasuhiro Jodai
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6461080A priority Critical patent/JPS56161511A/en
Publication of JPS56161511A publication Critical patent/JPS56161511A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0012—Arrays characterised by the manufacturing method

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Lens Barrels (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To obtain an inexpensive lens unit having a small number of component parts assembled easily and scarcely allowing pass-through of flare light in the unit, by inserting and fixing the lenses and their connecting bars to a housing made of a light shielding material containing plural optical through-holes. CONSTITUTION:A housing 10 is made of a light shielding material containing the optical through-holes arrayed zigzag. The lenses 16 are inserted and fixed to the circular lens fitting hollow parts; and the connecting bars 17 and 18 of the lenses 16 are fitted and fixed to the connecting hollow parts 13 and 14 respectively. In such way, an inexpensive lamellar lens unit for copying machine is obtained with a small number of component parts assembled easily and with virtually no flare light.
JP6461080A 1980-05-15 1980-05-15 Lamellar lens unit for copying machine Pending JPS56161511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6461080A JPS56161511A (en) 1980-05-15 1980-05-15 Lamellar lens unit for copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6461080A JPS56161511A (en) 1980-05-15 1980-05-15 Lamellar lens unit for copying machine

Publications (1)

Publication Number Publication Date
JPS56161511A true JPS56161511A (en) 1981-12-11

Family

ID=13263196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6461080A Pending JPS56161511A (en) 1980-05-15 1980-05-15 Lamellar lens unit for copying machine

Country Status (1)

Country Link
JP (1) JPS56161511A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0493245U (en) * 1990-12-19 1992-08-13
WO2000045199A1 (en) * 1999-01-29 2000-08-03 Rohm Co., Ltd. Lens unit for image formation, and image reader having lens unit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS498893A (en) * 1972-05-23 1974-01-25
JPS5583001A (en) * 1978-12-18 1980-06-23 Canon Inc Compound eye lens device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS498893A (en) * 1972-05-23 1974-01-25
JPS5583001A (en) * 1978-12-18 1980-06-23 Canon Inc Compound eye lens device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0493245U (en) * 1990-12-19 1992-08-13
WO2000045199A1 (en) * 1999-01-29 2000-08-03 Rohm Co., Ltd. Lens unit for image formation, and image reader having lens unit
US6545811B1 (en) 1999-01-29 2003-04-08 Rohm Co., Ltd. Lens unit for image formation, and image reader having lens unit
US6717734B2 (en) 1999-01-29 2004-04-06 Rohm Co., Ltd. Image forming lens unit and image reading apparatus using the same

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