JPS5720636A - Measuring device for transmittance of lens - Google Patents

Measuring device for transmittance of lens

Info

Publication number
JPS5720636A
JPS5720636A JP9526280A JP9526280A JPS5720636A JP S5720636 A JPS5720636 A JP S5720636A JP 9526280 A JP9526280 A JP 9526280A JP 9526280 A JP9526280 A JP 9526280A JP S5720636 A JPS5720636 A JP S5720636A
Authority
JP
Japan
Prior art keywords
lens
light
mirror
inspected
pinhole
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
JP9526280A
Other languages
Japanese (ja)
Other versions
JPH0118370B2 (en
Inventor
Kazuji Hiyakumura
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP9526280A priority Critical patent/JPS5720636A/en
Publication of JPS5720636A publication Critical patent/JPS5720636A/en
Publication of JPH0118370B2 publication Critical patent/JPH0118370B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0285—Testing optical properties by measuring material or chromatic transmission properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

PURPOSE:To make accurate measurement possible for any lens by making the states of light incident to a photodetector the same when a lens to be inspected is inserted and when not. CONSTITUTION:In the figure A, the light through a pinhole 1 passes through a stop 2, is reflected by a semitransparent mirror 3, and is directed to a concave reflecting mirror 4. The reflected light passes through the mirror 3 and the image of a stop 5 is formed. Next, a lens 10 to be inspected is inserted as shown in the figure B. At this time, the lens to be inspected is disposed in such a way that the pinhole 1 and the concave reflection mirror are made conjugate with respect to the lens to be inspected. The light of the pinhole 1 is imaged on a concave reflecting mirror 4 by the lens 10. The light thereof is reflected by the mirror 4, passes through the lens 10 then through the mirror 3 and images at the stop 5. If the quantity of light received in a photodetector 6 when the lens 10 is not inserted is defined as P1 and the quantity of light when it is inserted as P2, a transmittance T is obtained by the equation T=(P2/P1)<1/2>.
JP9526280A 1980-07-12 1980-07-12 Measuring device for transmittance of lens Granted JPS5720636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9526280A JPS5720636A (en) 1980-07-12 1980-07-12 Measuring device for transmittance of lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9526280A JPS5720636A (en) 1980-07-12 1980-07-12 Measuring device for transmittance of lens

Publications (2)

Publication Number Publication Date
JPS5720636A true JPS5720636A (en) 1982-02-03
JPH0118370B2 JPH0118370B2 (en) 1989-04-05

Family

ID=14132842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9526280A Granted JPS5720636A (en) 1980-07-12 1980-07-12 Measuring device for transmittance of lens

Country Status (1)

Country Link
JP (1) JPS5720636A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1241461A2 (en) * 2001-03-14 2002-09-18 Hoya Corporation Method for measuring light transmittance of lenses and apparatus therefor
JP2006098389A (en) * 2004-09-02 2006-04-13 Pentax Corp Method and apparatus for measuring transmittance of finite-system optical element
CN104236864A (en) * 2014-09-29 2014-12-24 大连市计量检定测试所 Glasses detector
WO2019129347A1 (en) * 2017-12-28 2019-07-04 Transitions Optical, Ltd. Method and system for measuring optical characteristics of a contact lens
US11422089B2 (en) 2017-12-28 2022-08-23 Transitions Optical, Ltd. Method for measuring optical characteristics of a transparent article

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100354620C (en) * 2001-03-14 2007-12-12 保谷株式会社 Method and apparatus for measuring light transmissivity
EP1241461A3 (en) * 2001-03-14 2003-07-30 Hoya Corporation Method for measuring light transmittance of lenses and apparatus therefor
US6816246B2 (en) 2001-03-14 2004-11-09 Hoya Corporation Method for measuring light transmittance and apparatus therefor
KR100474864B1 (en) * 2001-03-14 2005-03-09 호야 가부시키가이샤 Method for measuring light transmittance and apparatus therefor
EP1241461A2 (en) * 2001-03-14 2002-09-18 Hoya Corporation Method for measuring light transmittance of lenses and apparatus therefor
JP4694290B2 (en) * 2004-09-02 2011-06-08 Ｈｏｙａ株式会社 Method and apparatus for measuring transmittance of finite optical element
JP2006098389A (en) * 2004-09-02 2006-04-13 Pentax Corp Method and apparatus for measuring transmittance of finite-system optical element
CN104236864A (en) * 2014-09-29 2014-12-24 大连市计量检定测试所 Glasses detector
WO2019129347A1 (en) * 2017-12-28 2019-07-04 Transitions Optical, Ltd. Method and system for measuring optical characteristics of a contact lens
JP2021514474A (en) * 2017-12-28 2021-06-10 トランジション オプティカル、リミテッド Methods and systems for measuring the optical properties of contact lenses
RU2759312C1 (en) * 2017-12-28 2021-11-11 Транзишнз Оптикал, Лтд. Method and system for measuring the optical characteristics of a contact lens
US11422089B2 (en) 2017-12-28 2022-08-23 Transitions Optical, Ltd. Method for measuring optical characteristics of a transparent article
US11885706B2 (en) 2017-12-28 2024-01-30 Transitions Optical, Ltd. Method and system for measuring optical characteristics of a contact lens

Also Published As

Publication number Publication date
JPH0118370B2 (en) 1989-04-05

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