JPS5763506A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS5763506A
JPS5763506A JP13859780A JP13859780A JPS5763506A JP S5763506 A JPS5763506 A JP S5763506A JP 13859780 A JP13859780 A JP 13859780A JP 13859780 A JP13859780 A JP 13859780A JP S5763506 A JPS5763506 A JP S5763506A
Authority
JP
Japan
Prior art keywords
lens
arrays
image forming
forming device
light volume
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
JP13859780A
Other languages
Japanese (ja)
Inventor
Toshiyuki Iguchi
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 JP13859780A priority Critical patent/JPS5763506A/en
Publication of JPS5763506A publication Critical patent/JPS5763506A/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
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • 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
    • G02B3/005—Arrays characterized by the distribution or form of lenses arranged along a single direction only, e.g. lenticular sheets
    • 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
    • G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
    • G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To realize an even distribution of light volume regardless of the number of arrays, by inserting a light shielding member of a prescribed form into an image forming device in which at least two sheets of multi-lens arrays are provided opposite to each other. CONSTITUTION:for instnace, the optical axes of lenses of lens arrays 11-13 are made coincident with each other in an image forming device. In such a device, a light shielding member 10 is distributed above the 2nd lens 12. The member 10 is formed into a light shielding plate 10' that has an aperture 16 by which the orientation patern formed on an image surfacd by each lens becomes a consecutive parallelogram. The aperture 16 is set to a size that can be stored within a region D having a 100% apertuure factor within an effective picture angle region G of each lens. Thus a diagnal line 17 of the parallelogram passes through the center of a lens and coincides with direction X right-angled to the array direction Y, and the opposite sides 18 and 19 becomes parallel to the direction Y. Thus the light volume integrating value is equal between different directions X1 and X2 of the direction X, and the light volume distribution is even in the direction Y. In such way, th light volume distribution becomes even regardless of the number of arrays.
JP13859780A 1980-10-03 1980-10-03 Image forming device Pending JPS5763506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13859780A JPS5763506A (en) 1980-10-03 1980-10-03 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13859780A JPS5763506A (en) 1980-10-03 1980-10-03 Image forming device

Publications (1)

Publication Number Publication Date
JPS5763506A true JPS5763506A (en) 1982-04-17

Family

ID=15225803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13859780A Pending JPS5763506A (en) 1980-10-03 1980-10-03 Image forming device

Country Status (1)

Country Link
JP (1) JPS5763506A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931939A (en) * 1982-08-17 1984-02-21 Ricoh Co Ltd Optical device for original illumination and image formation
JPWO2022260102A1 (en) * 2021-06-09 2022-12-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931939A (en) * 1982-08-17 1984-02-21 Ricoh Co Ltd Optical device for original illumination and image formation
JPWO2022260102A1 (en) * 2021-06-09 2022-12-15

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