SE7608784L - OPTICAL SYSTEM - Google Patents

OPTICAL SYSTEM

Info

Publication number
SE7608784L
SE7608784L SE7608784A SE7608784A SE7608784L SE 7608784 L SE7608784 L SE 7608784L SE 7608784 A SE7608784 A SE 7608784A SE 7608784 A SE7608784 A SE 7608784A SE 7608784 L SE7608784 L SE 7608784L
Authority
SE
Sweden
Prior art keywords
lens
focal point
attachment element
negative
pancratic
Prior art date
Application number
SE7608784A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
F Laurent
K Bohm
L Rollenitz
W Besenmatter
T Muszumanski
G Kurz
F J Porscht
O Kantner
Von Belvard P Revy
Original Assignee
Bolex Int Sa
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
Priority claimed from AT607975A external-priority patent/AT339628B/en
Priority claimed from AT607875A external-priority patent/AT343937B/en
Priority claimed from AT47476A external-priority patent/AT340170B/en
Priority claimed from AT233476A external-priority patent/AT339629B/en
Priority claimed from AT339876A external-priority patent/AT340171B/en
Priority claimed from AT499576A external-priority patent/AT340698B/en
Application filed by Bolex Int Sa filed Critical Bolex Int Sa
Publication of SE7608784L publication Critical patent/SE7608784L/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G02B15/06—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part by changing the front part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/22—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with movable lens means specially adapted for focusing at close distances

Landscapes

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

Abstract

A pancratic lens (1) which can be focused to the macrodistance is converted into a fixed-focus wide-angle lens by prepositioning a negative attachment element (8) whose focal point is in the macrorange of the lens. In this case, the intermediate image plane of the attachment element and the focal point of the pancratic lens coincide. The negative lens is advantageously provided with at least one aspherical face for the purpose of correcting image errors. <IMAGE>
SE7608784A 1975-08-06 1976-08-05 OPTICAL SYSTEM SE7608784L (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
AT607975A AT339628B (en) 1975-08-06 1975-08-06 SYSTEM CONSTRUCTED IN THE WAY OF AN INVERTED TELE LENS
AT607875A AT343937B (en) 1975-08-06 1975-08-06 PANRATIC LENS
AT47476A AT340170B (en) 1976-01-23 1976-01-23 WIDE ANGLE ATTACHMENT
AT233476A AT339629B (en) 1976-03-31 1976-03-31 LENS OF NEGATIVE BREAKTHROUGH
AT339876A AT340171B (en) 1976-05-10 1976-05-10 WIDE ANGLE ATTACHMENT
AT499576A AT340698B (en) 1976-07-08 1976-07-08 OPTICAL SYSTEM

Publications (1)

Publication Number Publication Date
SE7608784L true SE7608784L (en) 1977-02-07

Family

ID=27542350

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7608784A SE7608784L (en) 1975-08-06 1976-08-05 OPTICAL SYSTEM

Country Status (10)

Country Link
JP (1) JPS5234726A (en)
AU (1) AU506932B2 (en)
CH (1) CH612767A5 (en)
DE (1) DE2634964A1 (en)
FR (1) FR2320566A1 (en)
GB (1) GB1531525A (en)
HK (1) HK37679A (en)
IT (1) IT1125271B (en)
NL (1) NL7608679A (en)
SE (1) SE7608784L (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT351829B (en) * 1976-11-15 1979-08-10 Bolex Int Sa OPTICAL SYSTEM
JPS57135912A (en) * 1981-02-16 1982-08-21 Asahi Optical Co Ltd Zoom lens
JPS6214137A (en) * 1985-07-11 1987-01-22 Gokou Eizou Kagaku Kenkyusho:Kk Automatic focusing camera to be easily switched to near range photographing
FR2604610B1 (en) * 1986-10-02 1990-11-09 Andre Maryse REVERSIBLE APRON WITH ADJUSTABLE STRAP COMPRISING A REMOVABLE PROTECTIVE ELEMENT
JP2510093Y2 (en) * 1987-09-28 1996-09-11 三菱電機株式会社 Brushless DC motor drive
JPH08201697A (en) * 1994-10-13 1996-08-09 Fuji Photo Optical Co Ltd Zoom lens
JP4774704B2 (en) * 2004-09-15 2011-09-14 株式会社ニコン Lens system
US8355211B2 (en) * 2005-08-11 2013-01-15 FM-Assets Pty Ltd Optical lens systems

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278754B (en) * 1959-08-12 1968-09-26 Rank Precision Ind Ltd Wide angle lens
AT223834B (en) * 1961-04-06 1962-10-10 Eumig Afocal wide-angle attachment system
AT223835B (en) * 1961-05-10 1962-10-10 Eumig Afocal wide-angle attachment system
FR2106359B1 (en) * 1970-09-08 1975-04-18 Eastman Kodak Co
US3658411A (en) * 1970-09-08 1972-04-25 Eastman Kodak Co Folded path zoom lens
AT317576B (en) * 1972-01-13 1974-09-10 Eumig Pancratic lens
SE363410B (en) * 1972-05-30 1974-01-14 Aga Ab
AT328762B (en) * 1973-03-01 1976-04-12 Eumig PANRATIC WIDE ANGLE PROJECTION LENS
JPS5652288B2 (en) * 1973-08-01 1981-12-11
AT325325B (en) * 1973-11-08 1975-10-10 Eumig PANRATIC CAMERA LENS

Also Published As

Publication number Publication date
GB1531525A (en) 1978-11-08
AU1666076A (en) 1978-02-09
JPS5234726A (en) 1977-03-16
HK37679A (en) 1979-06-22
FR2320566A1 (en) 1977-03-04
NL7608679A (en) 1977-02-08
IT1125271B (en) 1986-05-14
AU506932B2 (en) 1980-01-31
DE2634964A1 (en) 1977-02-17
CH612767A5 (en) 1979-08-15
FR2320566B1 (en) 1982-11-19

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