JPS53148429A - Original base for exposure and lighting - Google Patents

Original base for exposure and lighting

Info

Publication number
JPS53148429A
JPS53148429A JP6292877A JP6292877A JPS53148429A JP S53148429 A JPS53148429 A JP S53148429A JP 6292877 A JP6292877 A JP 6292877A JP 6292877 A JP6292877 A JP 6292877A JP S53148429 A JPS53148429 A JP S53148429A
Authority
JP
Japan
Prior art keywords
lighting
exposure
original base
surfce
curving
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
JP6292877A
Other languages
Japanese (ja)
Inventor
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 JP6292877A priority Critical patent/JPS53148429A/en
Publication of JPS53148429A publication Critical patent/JPS53148429A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable shading phenomena to be prevented without adding other means exclusive for correction by so curving an original placement surfce as to reverse-correct the degradation in the peripheral light quantity of an imaging lens.
COPYRIGHT: (C)1978,JPO&Japio
JP6292877A 1977-05-30 1977-05-30 Original base for exposure and lighting Pending JPS53148429A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6292877A JPS53148429A (en) 1977-05-30 1977-05-30 Original base for exposure and lighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6292877A JPS53148429A (en) 1977-05-30 1977-05-30 Original base for exposure and lighting

Publications (1)

Publication Number Publication Date
JPS53148429A true JPS53148429A (en) 1978-12-25

Family

ID=13214421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6292877A Pending JPS53148429A (en) 1977-05-30 1977-05-30 Original base for exposure and lighting

Country Status (1)

Country Link
JP (1) JPS53148429A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001122A1 (en) * 1983-08-25 1985-03-14 Masataka Negishi Light controlling apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985001122A1 (en) * 1983-08-25 1985-03-14 Masataka Negishi Light controlling apparatus

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