JPS552255A - Lighting device - Google Patents

Lighting device

Info

Publication number
JPS552255A
JPS552255A JP7474278A JP7474278A JPS552255A JP S552255 A JPS552255 A JP S552255A JP 7474278 A JP7474278 A JP 7474278A JP 7474278 A JP7474278 A JP 7474278A JP S552255 A JPS552255 A JP S552255A
Authority
JP
Japan
Prior art keywords
light
fluorescent lamp
faces
transmission bodies
face
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
JP7474278A
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 JP7474278A priority Critical patent/JPS552255A/en
Publication of JPS552255A publication Critical patent/JPS552255A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the utilization rate of light and perform good lighting by providing a box type fluorescent lamp whose faces other than projection face are made mirror faces and providing focusing type optical transmission bodies which receive the reflected light from the surface radiated by this projected light.
CONSTITUTION: Focusing type optical transmission bodies 8 of plural array confuigurations 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 box type fluorescent lamp 10 is provided in diagonal possition to the illuminated part 9 in opposition to these transmission bodies 8. This fluorescent lamp 10 comprises coating fluorescent coating 12 on the inside surface of a sealing glass plate 11, and forming a mirror face 15 through aluminum evaporation or the like on the other faces 14 except one face 13 opposing to the illuminated part 8. This enables the utilization efficiency of light to be improved and good lighting to be performed.
COPYRIGHT: (C)1980,JPO&Japio
JP7474278A 1978-06-20 1978-06-20 Lighting device Pending JPS552255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7474278A JPS552255A (en) 1978-06-20 1978-06-20 Lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7474278A JPS552255A (en) 1978-06-20 1978-06-20 Lighting device

Publications (1)

Publication Number Publication Date
JPS552255A true JPS552255A (en) 1980-01-09

Family

ID=13555993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7474278A Pending JPS552255A (en) 1978-06-20 1978-06-20 Lighting device

Country Status (1)

Country Link
JP (1) JPS552255A (en)

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