JPS54158250A - Illumination of scanner - Google Patents

Illumination of scanner

Info

Publication number
JPS54158250A
JPS54158250A JP6675278A JP6675278A JPS54158250A JP S54158250 A JPS54158250 A JP S54158250A JP 6675278 A JP6675278 A JP 6675278A JP 6675278 A JP6675278 A JP 6675278A JP S54158250 A JPS54158250 A JP S54158250A
Authority
JP
Japan
Prior art keywords
fluorescent lamp
pass therethrough
focused image
optical
original
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
JP6675278A
Other languages
Japanese (ja)
Inventor
Yoshiaki Kamimoto
Takashi Yokota
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 JP6675278A priority Critical patent/JPS54158250A/en
Publication of JPS54158250A publication Critical patent/JPS54158250A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to arrange a fluorescent lamp in the vicinity of the surface of an original, while making effective use of the quantity of the emitted light, by providing a transparent portion, which allows the optical bundle of a focused image to pass therethrough, at the fluorescent lamp.
CONSTITUTION: A rectangular fluorescent lamp 13 is arranged just below an original carriage 10, below which is arranged in parallel such a shielding plate 11 as has a slit 12 for allowing the optical bundle of a focused image to pass therethrough. The fluorescent lamp 13 is formed with a reflecting layer 17 and a fluorescent layer 18 inside of a glass tube 16 and with such transparent portions 14 and 15 at the upper and lower facing sides as also allow the optical ray of the focused image to pass therethrough.
COPYRIGHT: (C)1979,JPO&Japio
JP6675278A 1978-06-05 1978-06-05 Illumination of scanner Pending JPS54158250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6675278A JPS54158250A (en) 1978-06-05 1978-06-05 Illumination of scanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6675278A JPS54158250A (en) 1978-06-05 1978-06-05 Illumination of scanner

Publications (1)

Publication Number Publication Date
JPS54158250A true JPS54158250A (en) 1979-12-13

Family

ID=13324918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6675278A Pending JPS54158250A (en) 1978-06-05 1978-06-05 Illumination of scanner

Country Status (1)

Country Link
JP (1) JPS54158250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211870A (en) * 1981-06-24 1982-12-25 Nippon Telegr & Teleph Corp <Ntt> Lighting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57211870A (en) * 1981-06-24 1982-12-25 Nippon Telegr & Teleph Corp <Ntt> Lighting device
JPH0373189B2 (en) * 1981-06-24 1991-11-21 Nippon Denshin Denwa Kk

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