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JPS52138922A - Lens system - Google Patents

Lens system

Info

Publication number
JPS52138922A
JPS52138922A JP5596476A JP5596476A JPS52138922A JP S52138922 A JPS52138922 A JP S52138922A JP 5596476 A JP5596476 A JP 5596476A JP 5596476 A JP5596476 A JP 5596476A JP S52138922 A JPS52138922 A JP S52138922A
Authority
JP
Japan
Prior art keywords
lens system
gap
special
correct
commonly used
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
JP5596476A
Other languages
Japanese (ja)
Inventor
Mitsuo Yasukuni
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP5596476A priority Critical patent/JPS52138922A/en
Publication of JPS52138922A publication Critical patent/JPS52138922A/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B1/00—Hats; Caps; Hoods
    • A42B1/018—Hats; Caps; Hoods with means for protecting the eyes, ears or nape, e.g. sun or rain shields; with air-inflated pads or removable linings
    • A42B1/0181—Hats; Caps; Hoods with means for protecting the eyes, ears or nape, e.g. sun or rain shields; with air-inflated pads or removable linings with means for protecting the eyes
    • A42B1/0182—Peaks or visors

Landscapes

  • Lenses (AREA)

Abstract

PURPOSE: To correct the aberration deterioration when a special lens attachment is installed by providing a lens system wherein at least one variable air gap is set at a different special gap other than that of the ordinary gap commonly used.
COPYRIGHT: (C)1977,JPO&Japio
JP5596476A 1976-05-14 1976-05-14 Lens system Pending JPS52138922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5596476A JPS52138922A (en) 1976-05-14 1976-05-14 Lens system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5596476A JPS52138922A (en) 1976-05-14 1976-05-14 Lens system

Publications (1)

Publication Number Publication Date
JPS52138922A true JPS52138922A (en) 1977-11-19

Family

ID=13013754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5596476A Pending JPS52138922A (en) 1976-05-14 1976-05-14 Lens system

Country Status (1)

Country Link
JP (1) JPS52138922A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58108510A (en) * 1981-12-23 1983-06-28 Canon Inc Switching type variable power lens system
JPS6046519A (en) * 1983-08-25 1985-03-13 Nippon Kogaku Kk <Nikon> Wide-angle attachment lens
JPH01222212A (en) * 1987-12-11 1989-09-05 Eastman Kodak Co Zoom lens
US10539785B2 (en) 2015-11-10 2020-01-21 Canon Kabushiki Kaisha Optical system and image pickup apparatus including the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58108510A (en) * 1981-12-23 1983-06-28 Canon Inc Switching type variable power lens system
JPS6155091B2 (en) * 1981-12-23 1986-11-26 Canon Kk
JPS6046519A (en) * 1983-08-25 1985-03-13 Nippon Kogaku Kk <Nikon> Wide-angle attachment lens
JPH01222212A (en) * 1987-12-11 1989-09-05 Eastman Kodak Co Zoom lens
US10539785B2 (en) 2015-11-10 2020-01-21 Canon Kabushiki Kaisha Optical system and image pickup apparatus including the same

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