JP2000131191A5 - - Google Patents

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Publication number
JP2000131191A5
JP2000131191A5 JP1998334882A JP33488298A JP2000131191A5 JP 2000131191 A5 JP2000131191 A5 JP 2000131191A5 JP 1998334882 A JP1998334882 A JP 1998334882A JP 33488298 A JP33488298 A JP 33488298A JP 2000131191 A5 JP2000131191 A5 JP 2000131191A5
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JP
Japan
Prior art keywords
lens
optical system
transmittance
light
measuring
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JP1998334882A
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Japanese (ja)
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JP3762120B2 (en
JP2000131191A (en
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Priority to JP33488298A priority Critical patent/JP3762120B2/en
Priority claimed from JP33488298A external-priority patent/JP3762120B2/en
Publication of JP2000131191A publication Critical patent/JP2000131191A/en
Publication of JP2000131191A5 publication Critical patent/JP2000131191A5/ja
Application granted granted Critical
Publication of JP3762120B2 publication Critical patent/JP3762120B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (5)

発光手段と受光手段を持ち、かかる発光手段と受光手段の間に被検レンズを挿入することにより、該被検レンズの透過率を測定する光学系を有したレンズメータにおいて、
該透過率に用いる前記発光手段に紫外光ＬＥＤを用い、前記被検レンズの紫外光領域の前記透過率を算出する算出手段と、該算出手段による前記透過率を表示する表示手段を有したことを特徴とするレンズメータ。In a lens meter having a light emitting means and a light receiving means, and having an optical system for measuring the transmittance of the test lens by inserting the test lens between the light emitting means and the light receiving means,
Using an ultraviolet light LED to the light emitting means to be used in the transmission, chromatic said means de Sant you calculate the transmittance of the ultraviolet region of the lens, a display means for displaying the transmittance by the calculated detecting means A lens meter characterized by that. 前記紫外光ＬＥＤの波長が、紫外光領域の上限領域である３５０〜４００ｎｍであり、かかる波長を有する該紫外光ＬＥＤからの光の前記透過率を算出して表示する請求項１記載のレンズメータ。 Wavelength of the ultraviolet light LED is Ri 350~400nm der an upper region of the ultraviolet region, Renzume of claim 1, wherein the calculating and displaying the transmittance of light from該紫outside light LED having such wavelength Ta. レンズメータ本体のレンズ受下方において、前記被検レンズを挿入できるように空間が設けられており、この空間に挿入配置された該被検レンズを対象として前記透過率を測定する請求項１又は２に記載のレンズメータ。A space is provided below the lens receiver of the lens meter main body so that the test lens can be inserted, and the transmittance is measured for the test lens inserted and disposed in the space. The lens meter described in 1. 前記紫外光ＬＥＤからなる光源と、該光源から投射されて前記被検レンズを透過せしめられた測定光束を受光する光電変換素子とを含んで構成された、前記透過率を測定する光学系を、該被検レンズの光学特性を測定する光学系とは別に設けた請求項１乃至３の何れか一項に記載のレンズメータ。An optical system for measuring the transmittance, comprising: a light source composed of the ultraviolet LED; and a photoelectric conversion element that receives the measurement light beam projected from the light source and transmitted through the lens to be measured. The lens meter according to any one of claims 1 to 3, wherein the lens meter is provided separately from an optical system for measuring optical characteristics of the test lens. 前記被検レンズの光学特性を測定する光学系の投射光学系にハーフミラーを加えて、該光学特性を測定する光学系の光源と、前記紫外光ＬＥＤからなる光源とを切り換えることにより、該被検レンズの光学特定を測定する光学系と該被検レンズの前記透過率を測定する光学系とにおいて、該被検レンズを透過した測定光束の受光側の光学系を別に設けずに共用した請求項１乃至３の何れか一項に記載のレンズメータ。By adding a half mirror to the projection optical system of the optical system for measuring the optical characteristics of the lens to be measured, switching between the light source of the optical system for measuring the optical characteristics and the light source composed of the ultraviolet LED is performed. An optical system for measuring the optical specification of the test lens and an optical system for measuring the transmittance of the test lens are shared without providing an optical system on the light receiving side of the measurement light beam transmitted through the test lens. The lens meter according to any one of Items 1 to 3.
JP33488298A 1998-10-20 1998-10-20 Lens meter Expired - Fee Related JP3762120B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33488298A JP3762120B2 (en) 1998-10-20 1998-10-20 Lens meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33488298A JP3762120B2 (en) 1998-10-20 1998-10-20 Lens meter

Publications (3)

Publication Number Publication Date
JP2000131191A JP2000131191A (en) 2000-05-12
JP2000131191A5 true JP2000131191A5 (en) 2005-11-04
JP3762120B2 JP3762120B2 (en) 2006-04-05

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ID=18282289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33488298A Expired - Fee Related JP3762120B2 (en) 1998-10-20 1998-10-20 Lens meter

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JP (1) JP3762120B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3814155B2 (en) * 2001-03-14 2006-08-23 Ｈｏｙａ株式会社 Transmittance measuring method and apparatus
KR100403113B1 (en) * 2001-10-30 2003-10-30 (주)화인정공 A Measurement Device For Penetration Ratio of An Ultraviolet Rays
JP4609840B2 (en) * 2004-08-23 2011-01-12 株式会社ニデック Eyeglass lens measuring device
JP4606814B2 (en) * 2004-08-30 2011-01-05 株式会社トプコン Lens meter
JP2006084405A (en) * 2004-09-17 2006-03-30 Topukon Yamagata:Kk Lens meter
CN103926053B (en) * 2013-01-11 2018-08-24 上海嫦娥光学仪器科技有限公司 Automatic lensometer
CN103926054A (en) * 2013-01-15 2014-07-16 上海雄博精密仪器股份有限公司 Common optical path collection device for measuring vertex power and UV transmissivity of spectacle lens simultaneously

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