WO1988003643A3 - Method and apparatus for measuring magnification power of a magnifying aid - Google Patents

Method and apparatus for measuring magnification power of a magnifying aid Download PDF

Info

Publication number
WO1988003643A3
WO1988003643A3 PCT/US1987/002451 US8702451W WO8803643A3 WO 1988003643 A3 WO1988003643 A3 WO 1988003643A3 US 8702451 W US8702451 W US 8702451W WO 8803643 A3 WO8803643 A3 WO 8803643A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnification power
magnifying aid
measuring
magnifying
aid
Prior art date
Application number
PCT/US1987/002451
Other languages
French (fr)
Other versions
WO1988003643A1 (en
WO1988003643A2 (en
Inventor
Donald J Strittmatter
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Priority to JP88500772A priority Critical patent/JPH01501733A/en
Priority to DE8888900611T priority patent/DE3771710D1/en
Publication of WO1988003643A1 publication Critical patent/WO1988003643A1/en
Publication of WO1988003643A2 publication Critical patent/WO1988003643A2/en
Publication of WO1988003643A3 publication Critical patent/WO1988003643A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Telescopes (AREA)

Abstract

An apparatus (10) for measuring the magnification power of a magnifying aid (14). The apparatus (10) includes an optical system (12) having an objective lens (34) focused at infinity on a reticle. The reticle (20) is positioned in the line of sight of the optical system (12). The reticle (20) is precalibrated such that the magnification power of a magnifying aid (14) may be determined. Also, disclosed is a method of calibrating the optical system (12) and a method of measuring the magnification power of a magnifying aid (14).
PCT/US1987/002451 1986-11-10 1987-09-28 Method and apparatus for measuring magnification power of a magnifying aid WO1988003643A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP88500772A JPH01501733A (en) 1986-11-10 1987-09-28 Magnification measuring method and device for magnifying device
DE8888900611T DE3771710D1 (en) 1986-11-10 1987-09-28 DEVICE AND METHOD FOR MEASURING THE MAGNIFICATION CAPACITY OF AN MAGNIFICATION AID.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/929,022 US4741617A (en) 1986-11-10 1986-11-10 Method and apparatus for measuring, magnification power of a magnifying aid
US929,022 1986-11-10

Publications (3)

Publication Number Publication Date
WO1988003643A1 WO1988003643A1 (en) 1988-05-19
WO1988003643A2 WO1988003643A2 (en) 1988-05-19
WO1988003643A3 true WO1988003643A3 (en) 1988-06-16

Family

ID=25457192

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/002451 WO1988003643A2 (en) 1986-11-10 1987-09-28 Method and apparatus for measuring magnification power of a magnifying aid

Country Status (5)

Country Link
US (1) US4741617A (en)
EP (1) EP0288562B1 (en)
JP (1) JPH01501733A (en)
DE (1) DE3771710D1 (en)
WO (1) WO1988003643A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984565A1 (en) * 2011-12-19 2013-06-21 Thomson Licensing METHOD AND DEVICE FOR ESTIMATING THE OPTICAL POWER OF LENSES OF CORRECTIVE GLASSES OF A PAIR OF LENSES CARRIED BY A SPECTATOR.
CN104055482A (en) * 2014-06-27 2014-09-24 苏州拓科仪器设备有限公司 Novel ophthalmic measurement testing device
CN110459110A (en) * 2019-08-16 2019-11-15 浙江浙光科技有限公司 Graticle method is surveyed from the device and method for organizing magnification of telescope

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR731102A (en) * 1932-02-06 1932-08-29 Device for checking the magnification of optical systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375754A (en) * 1964-09-29 1968-04-02 Bausch & Lomb Lens testing autocollimator
JPS5369058A (en) * 1976-11-30 1978-06-20 Hoya Lens Co Ltd Lens meter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR731102A (en) * 1932-02-06 1932-08-29 Device for checking the magnification of optical systems

Also Published As

Publication number Publication date
WO1988003643A2 (en) 1988-05-19
US4741617A (en) 1988-05-03
EP0288562A1 (en) 1988-11-02
JPH01501733A (en) 1989-06-15
EP0288562B1 (en) 1991-07-24
DE3771710D1 (en) 1991-08-29

Similar Documents

Publication Publication Date Title
DE69932934D1 (en) DEVICE FOR FOCUSING X-RAY RAYS
CA2284818A1 (en) Method for identifying characteristics of contact lenses
EP0080887A3 (en) Fiber optics communications modules
EP0089694A3 (en) Chromatic aberration corrected gradient index lens system
CA2078116A1 (en) Multifocal bi-refringent lens with matched bi-refringence
EP0297361A3 (en) Telecentric image-forming system having variable magnifications
ATE163476T1 (en) METHOD AND DEVICE FOR MEASURING THE DIMENSION OF AN OBJECT
KR0124058B1 (en) Measuring device and method of 2-dimension microscope displacement by using moire appearance
EP0671238A4 (en) Laser marking apparatus.
DE69016093D1 (en) Retrofocus objective lens and optical scanning arrangement with such a lens.
DE3021887A1 (en) FOCUSING METHOD AND DEVICE ON OPTICAL SYSTEMS
JPS54122680U (en)
WO1996013738A3 (en) Center masking illumination system and method
EP0340647A3 (en) Apochromat optical system
EP0328930A3 (en) Zoom lens
WO1988003643A2 (en) Method and apparatus for measuring magnification power of a magnifying aid
DE3688662D1 (en) OPTICAL VISION DEVICE WITH FOLDER.
IE810420L (en) Alignment and exposure apparatus
EP0142142A3 (en) Fiber optic microscope with adjustable tube assembly
JPS57186718A (en) Optical fiber connecting device
JPS57133428A (en) Alignment optical system capable of variable magnification
GB8701880D0 (en) Stand magnifiers & lens
DE3378089D1 (en) Method and apparatus for adjusting the optical axis of an electron microscope
ATE137342T1 (en) BINOCULAR TELESCOPE
EP0111635A3 (en) Method of selecting the optimum focusing adjustment for an optical instrument

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): CH DE GB IT

CR1 Correction of entry in section i

Free format text: IN PAT.BUL.11/88,UNDER"PUBLISHED"REPLACE"A1"BY"A2"

AK Designated states

Kind code of ref document: A3

Designated state(s): JP

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): CH DE GB IT

WWE Wipo information: entry into national phase

Ref document number: 1988900611

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1988900611

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1988900611

Country of ref document: EP