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JPS56151902A - Plastic lens - Google Patents

Plastic lens

Info

Publication number
JPS56151902A
JPS56151902A JP5565080A JP5565080A JPS56151902A JP S56151902 A JPS56151902 A JP S56151902A JP 5565080 A JP5565080 A JP 5565080A JP 5565080 A JP5565080 A JP 5565080A JP S56151902 A JPS56151902 A JP S56151902A
Authority
JP
Japan
Prior art keywords
lens
pressing
plastic lenses
optical axis
lenses
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
JP5565080A
Other languages
Japanese (ja)
Inventor
Etsuzo Kurihara
Naomiki Izumitani
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP5565080A priority Critical patent/JPS56151902A/en
Publication of JPS56151902A publication Critical patent/JPS56151902A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To prevent the occurrence of bending moment in a lens by forming lens pressing sections pressing both sides of the lens in the lens except its effective curved surface at an almost equal distance from the optical axis. CONSTITUTION:For example, in the lens system composed of glass lens 31 and plastic lenses 32-34, lens pressing sections 32a, 32b, 33a, 33b, 34a, 34b pressing plastic lenses 32-34, from the front and rear, which are liable to produce a strain owing to external stress are formed so that the positions of the pressing sections include parts which are equal to each other in height from the optical axis. Even if the lenses are successively reduced in outside diameter, bending moment deforming the curved surfaces of plastic lenses 32-34 does not act.
JP5565080A 1980-04-25 1980-04-25 Plastic lens Pending JPS56151902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5565080A JPS56151902A (en) 1980-04-25 1980-04-25 Plastic lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5565080A JPS56151902A (en) 1980-04-25 1980-04-25 Plastic lens

Publications (1)

Publication Number Publication Date
JPS56151902A true JPS56151902A (en) 1981-11-25

Family

ID=13004697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5565080A Pending JPS56151902A (en) 1980-04-25 1980-04-25 Plastic lens

Country Status (1)

Country Link
JP (1) JPS56151902A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887506A (en) * 1981-11-20 1983-05-25 Olympus Optical Co Ltd Self-deformation preventing plastic lens
JPS58153908A (en) * 1982-03-09 1983-09-13 Minolta Camera Co Ltd Lens for scanning
JPS5939527A (en) * 1982-08-30 1984-03-03 Alps Electric Co Ltd Plastic lens
KR100752826B1 (en) * 1999-03-31 2007-08-29 소니 가부시끼 가이샤 Lens holder, lens holder manufacturing method and lens holder manufacturing mold

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917226B1 (en) * 1969-12-06 1974-04-27
JPS5165625A (en) * 1974-10-16 1976-06-07 Combined Optical Ind Ltd TARENZUKUMITATETAI
JPS5225159U (en) * 1975-08-09 1977-02-22

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4917226B1 (en) * 1969-12-06 1974-04-27
JPS5165625A (en) * 1974-10-16 1976-06-07 Combined Optical Ind Ltd TARENZUKUMITATETAI
JPS5225159U (en) * 1975-08-09 1977-02-22

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887506A (en) * 1981-11-20 1983-05-25 Olympus Optical Co Ltd Self-deformation preventing plastic lens
JPH0321885B2 (en) * 1981-11-20 1991-03-25 Olympus Optical Co
JPS58153908A (en) * 1982-03-09 1983-09-13 Minolta Camera Co Ltd Lens for scanning
JPH0447286B2 (en) * 1982-03-09 1992-08-03 Minolta Camera Kk
JPS5939527A (en) * 1982-08-30 1984-03-03 Alps Electric Co Ltd Plastic lens
KR100752826B1 (en) * 1999-03-31 2007-08-29 소니 가부시끼 가이샤 Lens holder, lens holder manufacturing method and lens holder manufacturing mold

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