JPS5535337A - Light source device in photographic printer - Google Patents

Light source device in photographic printer

Info

Publication number
JPS5535337A
JPS5535337A JP10773878A JP10773878A JPS5535337A JP S5535337 A JPS5535337 A JP S5535337A JP 10773878 A JP10773878 A JP 10773878A JP 10773878 A JP10773878 A JP 10773878A JP S5535337 A JPS5535337 A JP S5535337A
Authority
JP
Japan
Prior art keywords
light source
light
photographic printer
periphery
source device
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
JP10773878A
Other languages
Japanese (ja)
Inventor
Tetsuo Morita
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.)
Fujinon Corp
Original Assignee
Fuji Photo Optical 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 Fuji Photo Optical Co Ltd filed Critical Fuji Photo Optical Co Ltd
Priority to JP10773878A priority Critical patent/JPS5535337A/en
Publication of JPS5535337A publication Critical patent/JPS5535337A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0257—Diffusing elements; Afocal elements characterised by the diffusing properties creating an anisotropic diffusion characteristic, i.e. distributing output differently in two perpendicular axes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0263—Diffusing elements; Afocal elements characterised by the diffusing properties with positional variation of the diffusing properties, e.g. gradient or patterned diffuser

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE:To let the light distribution of projected screen become even by using correcting filters which are made thinner in density as they go closer to the periphery to the lighting optical path of the photographic printer. CONSTITUTION:A diffusion plate 80 is given with such patterns that they become coarser as they go toward the periphery from the center by printing, spraying, etching, etc by white ink. Hence, the light out from a light source 10 is made to the overall evenly distributed light by the correcting plate 80 in the diffusion box 30, whereby the even distribution may be obtained over the entire part of the screen of the images on the original plate projected to printing paper 70.
JP10773878A 1978-09-01 1978-09-01 Light source device in photographic printer Pending JPS5535337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10773878A JPS5535337A (en) 1978-09-01 1978-09-01 Light source device in photographic printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10773878A JPS5535337A (en) 1978-09-01 1978-09-01 Light source device in photographic printer

Publications (1)

Publication Number Publication Date
JPS5535337A true JPS5535337A (en) 1980-03-12

Family

ID=14466695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10773878A Pending JPS5535337A (en) 1978-09-01 1978-09-01 Light source device in photographic printer

Country Status (1)

Country Link
JP (1) JPS5535337A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181171U (en) * 1981-05-08 1982-11-17
EP0116074A1 (en) * 1982-07-29 1984-08-22 Itek Corporation Half tone screen exposure apparatus
JPS61150131U (en) * 1985-03-11 1986-09-17
US8096706B2 (en) * 2008-05-27 2012-01-17 Nanya Technology Corporation Temperature detector and the method using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57181171U (en) * 1981-05-08 1982-11-17
EP0116074A1 (en) * 1982-07-29 1984-08-22 Itek Corporation Half tone screen exposure apparatus
JPS61150131U (en) * 1985-03-11 1986-09-17
US8096706B2 (en) * 2008-05-27 2012-01-17 Nanya Technology Corporation Temperature detector and the method using the same

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