JPS55124164A - Optical lighting device - Google Patents

Optical lighting device

Info

Publication number
JPS55124164A
JPS55124164A JP3153379A JP3153379A JPS55124164A JP S55124164 A JPS55124164 A JP S55124164A JP 3153379 A JP3153379 A JP 3153379A JP 3153379 A JP3153379 A JP 3153379A JP S55124164 A JPS55124164 A JP S55124164A
Authority
JP
Japan
Prior art keywords
light source
lighting
light
imaging element
condenser lens
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
JP3153379A
Other languages
Japanese (ja)
Inventor
Osamu Hoshino
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP3153379A priority Critical patent/JPS55124164A/en
Publication of JPS55124164A publication Critical patent/JPS55124164A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE: To reduce the turn-back shock in the reciprocative movement of an optical scanning means by providing a light source near photosensitive surface and reverse-projecting the light source image to near the original surface by an imaging element.
CONSTITUTION: A light device 8 has a light source 9 for lighting at its center and is enclosed by a reflecting shade 10. The reflecting shade 10 is constituted by quadratics such as ellipsoid or poly-planes so as to lead the light of the light source 9 for lighting to an imaging element 5. A condenser lens 11 for obviating the deversion of the light of the light source 9 for lighting is porivided. The reflecting shade 10 has two openings other than at the portion of the condenser lens 11; the opening 12 lighting the region 13 on a moving photosensitive surface 3. There is a condenser lens 14 in the another opening and lens 14 is lighting the region 16 on the moving photosensitive surface 3. In this way, the light source of the lighting device 9 is projected and imaged to the position 17 near the original surface by the imaging element 5. By providing the light source near the image plane area of the photoreceptor in this way, the moving speed of the optical scanning means may be decreased and the turn-back shock in the reciprocating motion reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP3153379A 1979-03-16 1979-03-16 Optical lighting device Pending JPS55124164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3153379A JPS55124164A (en) 1979-03-16 1979-03-16 Optical lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3153379A JPS55124164A (en) 1979-03-16 1979-03-16 Optical lighting device

Publications (1)

Publication Number Publication Date
JPS55124164A true JPS55124164A (en) 1980-09-25

Family

ID=12333829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3153379A Pending JPS55124164A (en) 1979-03-16 1979-03-16 Optical lighting device

Country Status (1)

Country Link
JP (1) JPS55124164A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145333U (en) * 1974-09-28 1976-04-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145333U (en) * 1974-09-28 1976-04-03

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