JPS552256A - Lighting device - Google Patents

Lighting device

Info

Publication number
JPS552256A
JPS552256A JP7474378A JP7474378A JPS552256A JP S552256 A JPS552256 A JP S552256A JP 7474378 A JP7474378 A JP 7474378A JP 7474378 A JP7474378 A JP 7474378A JP S552256 A JPS552256 A JP S552256A
Authority
JP
Japan
Prior art keywords
reflecting plate
light
optical transmission
faces
transmission bodies
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
JP7474378A
Other languages
Japanese (ja)
Inventor
Motoaki Kawazu
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 JP7474378A priority Critical patent/JPS552256A/en
Publication of JPS552256A publication Critical patent/JPS552256A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)

Abstract

PURPOSE: To enhance the utilization efficiency of light and perform good lighting by providing a box type flurorescent lamp whose faces other than projecting face are made mirror faces and providing focusing type optical transmission bodies which receive the reflected light from the radiated surface of the light projected through the reflecting plate.
CONSTITUTION: Focusing type optical transmission bodies 8 of plural array configurations supported to a frame body 7 while being positioned between the contact glass 5 on which the original 4 is placed and a photoreceptor 6 are provided. A reflecting plate 10 is provided in diagonal opposition to the illuminated part 8 opposing to said optical transmission bodies 8. Further, a box type flurorescent lamp 11 is provided in diagonal opposition to this reflecting plate 10. This fluorescent lamp 10 comprises coating fluorescent coating 13 on the inside surface of a sealing glass plate 12 and forming a mirror face 15 through a aluminum evaporation or the like on the other faces 15 except one face 14 opposing to the reflecting plate 10. This enables the utilization efficiency of light to be improved and good lighting to be performed.
COPYRIGHT: (C)1980,JPO&Japio
JP7474378A 1978-06-20 1978-06-20 Lighting device Pending JPS552256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7474378A JPS552256A (en) 1978-06-20 1978-06-20 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7474378A JPS552256A (en) 1978-06-20 1978-06-20 Lighting device

Publications (1)

Publication Number Publication Date
JPS552256A true JPS552256A (en) 1980-01-09

Family

ID=13556023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7474378A Pending JPS552256A (en) 1978-06-20 1978-06-20 Lighting device

Country Status (1)

Country Link
JP (1) JPS552256A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419902U (en) * 1987-07-24 1989-01-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419902U (en) * 1987-07-24 1989-01-31

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