JPS556309A - Soft focus attachment lens - Google Patents

Soft focus attachment lens

Info

Publication number
JPS556309A
JPS556309A JP7744978A JP7744978A JPS556309A JP S556309 A JPS556309 A JP S556309A JP 7744978 A JP7744978 A JP 7744978A JP 7744978 A JP7744978 A JP 7744978A JP S556309 A JPS556309 A JP S556309A
Authority
JP
Japan
Prior art keywords
lens
soft focus
attachment lens
image side
spherical aberrations
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
JP7744978A
Other languages
Japanese (ja)
Inventor
Yusuke Nanjo
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.)
Mamiya Camera Co Ltd
Original Assignee
Mamiya Camera 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 Mamiya Camera Co Ltd filed Critical Mamiya Camera Co Ltd
Priority to JP7744978A priority Critical patent/JPS556309A/en
Publication of JPS556309A publication Critical patent/JPS556309A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
    • G02B27/0068—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration having means for controlling the degree of correction, e.g. using phase modulators, movable elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

PURPOSE: To realize the soft focus lens which is capable of producing spherical aberrations of higher degrees through under- or over-correction of spherical aberrations by mounting one of two kinds of attachment lenses.
CONSTITUTION: The cemented lens of a convex lens and a concave lens is disposed as an attachment lens mounted from the aperture position of the main lens having an aperture on the image side of the lens system to the image side and is so constituted that the center of the curvature of its cemented face is near the aperture position and satifies the conditions of the formulas.
COPYRIGHT: (C)1980,JPO&Japio
JP7744978A 1978-06-28 1978-06-28 Soft focus attachment lens Pending JPS556309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7744978A JPS556309A (en) 1978-06-28 1978-06-28 Soft focus attachment lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7744978A JPS556309A (en) 1978-06-28 1978-06-28 Soft focus attachment lens

Publications (1)

Publication Number Publication Date
JPS556309A true JPS556309A (en) 1980-01-17

Family

ID=13634320

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7744978A Pending JPS556309A (en) 1978-06-28 1978-06-28 Soft focus attachment lens

Country Status (1)

Country Link
JP (1) JPS556309A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994887A (en) * 1982-11-24 1984-05-31 Oki Electric Ind Co Ltd Light emitting device
EP0859259A2 (en) * 1997-02-14 1998-08-19 Nikon Corporation Adapter for correcting spherical aberrations of objective lens
JP2001264637A (en) * 2000-03-21 2001-09-26 Nikon Corp Spherical aberration compensating optical system and device, and optical observation device equipped with compensating optical system or device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141223A (en) * 1976-05-20 1977-11-25 Mamiya Camera Soft focus lens
JPS5323626A (en) * 1976-08-17 1978-03-04 Canon Inc Soft-focus lens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141223A (en) * 1976-05-20 1977-11-25 Mamiya Camera Soft focus lens
JPS5323626A (en) * 1976-08-17 1978-03-04 Canon Inc Soft-focus lens

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5994887A (en) * 1982-11-24 1984-05-31 Oki Electric Ind Co Ltd Light emitting device
EP0859259A2 (en) * 1997-02-14 1998-08-19 Nikon Corporation Adapter for correcting spherical aberrations of objective lens
EP0859259A3 (en) * 1997-02-14 1999-09-22 Nikon Corporation Adapter for correcting spherical aberrations of objective lens
JP2001264637A (en) * 2000-03-21 2001-09-26 Nikon Corp Spherical aberration compensating optical system and device, and optical observation device equipped with compensating optical system or device

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