JPS572016A - Lighting equipment - Google Patents

Lighting equipment

Info

Publication number
JPS572016A
JPS572016A JP7630380A JP7630380A JPS572016A JP S572016 A JPS572016 A JP S572016A JP 7630380 A JP7630380 A JP 7630380A JP 7630380 A JP7630380 A JP 7630380A JP S572016 A JPS572016 A JP S572016A
Authority
JP
Japan
Prior art keywords
focuses
conform
oval
reflectors
focus
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
JP7630380A
Other languages
Japanese (ja)
Other versions
JPS6247291B2 (en
Inventor
Yutaka Koizumi
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 JP7630380A priority Critical patent/JPS572016A/en
Publication of JPS572016A publication Critical patent/JPS572016A/en
Publication of JPS6247291B2 publication Critical patent/JPS6247291B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0019—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors)
    • G02B19/0023—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having reflective surfaces only (e.g. louvre systems, systems with multiple planar reflectors) at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source

Landscapes

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

Abstract

PURPOSE:To raise a utilization effect of a light beam, by making the first focuses of I and II confrom among three oval surface reflectors I, II, III, making the second focus of I conform with the first focus of III, making the second focuses of II and III conform, and moreover, making the center of a circular surface reflector conform with the first focuses of I and II, relating to a lighting equipment such as a copying machine, etc. CONSTITUTION:The first focuses P1 of the first and second oval surface reflectors 1, 2 are made to conform with each other, and the second focus P2 of the first oval surface reflector 1 is made to conform with the first focus P2 of the third oval surface reflector 3. Furthermore, the second focuses P3 of the second and third oval surface reflectors 2, 3 are made to conform with each other, also the center P1 of a circular surface reflector 4 is made to conform with a common position P1 by the first focuses of the first and second oval surface reflectors 1, 2, and a lamp light emission part 5 is placed in the center part of the circular surface reflector 4. And, a part of the whole luminous flux which is emitted from the light emission part 5 makes incident to the mirror surface of the first and second oval surface reflectors 1, 2, and the residual luminous flux makes incident to the mirror surface of the circular surface reflector 4, so that the whole luminous flux can be condensed at the second focuses P3 of the second and third oval surface reflectors 2, 3.
JP7630380A 1980-06-06 1980-06-06 Lighting equipment Granted JPS572016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7630380A JPS572016A (en) 1980-06-06 1980-06-06 Lighting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7630380A JPS572016A (en) 1980-06-06 1980-06-06 Lighting equipment

Publications (2)

Publication Number Publication Date
JPS572016A true JPS572016A (en) 1982-01-07
JPS6247291B2 JPS6247291B2 (en) 1987-10-07

Family

ID=13601595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7630380A Granted JPS572016A (en) 1980-06-06 1980-06-06 Lighting equipment

Country Status (1)

Country Link
JP (1) JPS572016A (en)

Also Published As

Publication number Publication date
JPS6247291B2 (en) 1987-10-07

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