JPS5262023A - Finder optical system of inverse galileo type - Google Patents

Finder optical system of inverse galileo type

Info

Publication number
JPS5262023A
JPS5262023A JP13762875A JP13762875A JPS5262023A JP S5262023 A JPS5262023 A JP S5262023A JP 13762875 A JP13762875 A JP 13762875A JP 13762875 A JP13762875 A JP 13762875A JP S5262023 A JPS5262023 A JP S5262023A
Authority
JP
Japan
Prior art keywords
optical system
finder optical
galileo type
inverse galileo
plane
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
JP13762875A
Other languages
Japanese (ja)
Other versions
JPS6135533B2 (en
Inventor
Kazuo Kimura
Yasuo Yamazaki
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 JP13762875A priority Critical patent/JPS5262023A/en
Publication of JPS5262023A publication Critical patent/JPS5262023A/en
Publication of JPS6135533B2 publication Critical patent/JPS6135533B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Telescopes (AREA)
  • Lenses (AREA)
  • Viewfinders (AREA)

Abstract

PURPOSE: To enhance distortion, visibility characteristic by rendering the plane of an objective lens to be non-spherical which satisfies the formula I, and rendering non-spherical curvatures of the fourth degree of the first plane, of the fourth and sixth degrees of the second plane to have the values which satisfy the formulas 2W4.
COPYRIGHT: (C)1977,JPO&Japio
JP13762875A 1975-11-14 1975-11-14 Finder optical system of inverse galileo type Granted JPS5262023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13762875A JPS5262023A (en) 1975-11-14 1975-11-14 Finder optical system of inverse galileo type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13762875A JPS5262023A (en) 1975-11-14 1975-11-14 Finder optical system of inverse galileo type

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP62179376A Division JPS6371822A (en) 1987-07-17 1987-07-17 Reverse galiiean finder optical system

Publications (2)

Publication Number Publication Date
JPS5262023A true JPS5262023A (en) 1977-05-23
JPS6135533B2 JPS6135533B2 (en) 1986-08-13

Family

ID=15203093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13762875A Granted JPS5262023A (en) 1975-11-14 1975-11-14 Finder optical system of inverse galileo type

Country Status (1)

Country Link
JP (1) JPS5262023A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102062A (en) * 1983-11-08 1985-06-06 Matsushita Electric Ind Co Ltd Amplifier of sensitivity of vertical synchronizing signal
JPS61270721A (en) * 1985-05-27 1986-12-01 Nippon Kogaku Kk <Nikon> Magnification conversion type reverse galilean finder
JPS63287815A (en) * 1987-05-20 1988-11-24 Konica Corp Lighting type variable power finder
US5483381A (en) * 1993-01-29 1996-01-09 Olympus Optical Co., Ltd. Reversed galilean finder optical system
US5715090A (en) * 1996-02-20 1998-02-03 Eastman Kodak Company Color corrected viewfinder including a negative power lens component having a diffractive surface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575082A (en) * 1968-06-24 1971-04-13 Eastman Kodak Co Albada viewfinder having three lens components
JPS4852229A (en) * 1971-10-30 1973-07-23
JPS5087027A (en) * 1973-11-30 1975-07-12

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575082A (en) * 1968-06-24 1971-04-13 Eastman Kodak Co Albada viewfinder having three lens components
JPS4852229A (en) * 1971-10-30 1973-07-23
JPS5087027A (en) * 1973-11-30 1975-07-12

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60102062A (en) * 1983-11-08 1985-06-06 Matsushita Electric Ind Co Ltd Amplifier of sensitivity of vertical synchronizing signal
JPH0329230B2 (en) * 1983-11-08 1991-04-23 Matsushita Electric Ind Co Ltd
JPS61270721A (en) * 1985-05-27 1986-12-01 Nippon Kogaku Kk <Nikon> Magnification conversion type reverse galilean finder
JPS63287815A (en) * 1987-05-20 1988-11-24 Konica Corp Lighting type variable power finder
US5483381A (en) * 1993-01-29 1996-01-09 Olympus Optical Co., Ltd. Reversed galilean finder optical system
US5715090A (en) * 1996-02-20 1998-02-03 Eastman Kodak Company Color corrected viewfinder including a negative power lens component having a diffractive surface

Also Published As

Publication number Publication date
JPS6135533B2 (en) 1986-08-13

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