JPS5776511A - Distortion image attachment lens - Google Patents

Distortion image attachment lens

Info

Publication number
JPS5776511A
JPS5776511A JP15215680A JP15215680A JPS5776511A JP S5776511 A JPS5776511 A JP S5776511A JP 15215680 A JP15215680 A JP 15215680A JP 15215680 A JP15215680 A JP 15215680A JP S5776511 A JPS5776511 A JP S5776511A
Authority
JP
Japan
Prior art keywords
lens
barrel
attached
image
nonfocal
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.)
Granted
Application number
JP15215680A
Other languages
Japanese (ja)
Other versions
JPS6112248B2 (en
Inventor
Takashi Goto
Ryoko Watabe
Kunio Sakurai
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 JP15215680A priority Critical patent/JPS5776511A/en
Publication of JPS5776511A publication Critical patent/JPS5776511A/en
Publication of JPS6112248B2 publication Critical patent/JPS6112248B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/08—Anamorphotic objectives

Landscapes

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

Abstract

PURPOSE:To obtain a lens through which a unidirectional image is reduced and magnified, by causing 5-20% variable magnification in a specific direction of an image for a pair of cylindrical lenses constituting substantially a nonfocal system. CONSTITUTION:A biconcave cylindrical lens L1 and a biconvex cylindrical lens L2 form a substantically nonfocal system. Such paired lens system is attached to the barrel of an ordinary photographing lens L3. For this lens system, the deformation ratio on the approximate axis is 0.8-0.95 and the lens distance between the L1 and L2 is 0.4-0.6 times as much as the total length of lens. The lenses L1 and L2 are formed in rectangles at the center part of a synthetic resin of acrylic or other materials and attached to a lens barrels 2. An end 3 of the barrel 2 is attached to a photographing lens, and the barrel is turned. Thus a subject is reduced vartically or horizontally to produce a new photographic image.
JP15215680A 1980-10-31 1980-10-31 Distortion image attachment lens Granted JPS5776511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15215680A JPS5776511A (en) 1980-10-31 1980-10-31 Distortion image attachment lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15215680A JPS5776511A (en) 1980-10-31 1980-10-31 Distortion image attachment lens

Publications (2)

Publication Number Publication Date
JPS5776511A true JPS5776511A (en) 1982-05-13
JPS6112248B2 JPS6112248B2 (en) 1986-04-07

Family

ID=15534240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15215680A Granted JPS5776511A (en) 1980-10-31 1980-10-31 Distortion image attachment lens

Country Status (1)

Country Link
JP (1) JPS5776511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010234A (en) * 1983-06-29 1985-01-19 Canon Inc projection device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010234A (en) * 1983-06-29 1985-01-19 Canon Inc projection device

Also Published As

Publication number Publication date
JPS6112248B2 (en) 1986-04-07

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