JPS6450012A - Spectacle lens with small aberration - Google Patents
Spectacle lens with small aberrationInfo
- Publication number
- JPS6450012A JPS6450012A JP20650987A JP20650987A JPS6450012A JP S6450012 A JPS6450012 A JP S6450012A JP 20650987 A JP20650987 A JP 20650987A JP 20650987 A JP20650987 A JP 20650987A JP S6450012 A JPS6450012 A JP S6450012A
- Authority
- JP
- Japan
- Prior art keywords
- aspherical
- spectacle lens
- equation
- peak
- optical axis
- 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.)
- Pending
Links
Abstract
PURPOSE:To prevent astigmatism which is displeasing in visual sensation by making the entire shape of one surface of a lens specifically aspherical. CONSTITUTION:The entire surface shape of one surface of a single-focus spectacle lens with a negative diopter is made aspherical as shown by an equation I. In the equation I, (x) is the length of the perpendicular from one point on the aspherical surface with a distance (h) from the optical axis to a plane contacting the peak of the aspherical surface, (h) is the distance from the optical axis, S is the curvature of a spherical surface inscribed with the peak of the aspherical surface, (k) and A, B... are spherical surface constants, (k) is a conic constant, A, B... are coefficients of terminals proportional to the values of (h) raised to the 4th, 6th, 8th, 10th... power, and (k), A, B... are not 0 at the same time. Consequently, the astigmatism becomes extremely small and pleasant visual sensation is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20650987A JPS6450012A (en) | 1987-08-21 | 1987-08-21 | Spectacle lens with small aberration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20650987A JPS6450012A (en) | 1987-08-21 | 1987-08-21 | Spectacle lens with small aberration |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6450012A true JPS6450012A (en) | 1989-02-27 |
Family
ID=16524545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20650987A Pending JPS6450012A (en) | 1987-08-21 | 1987-08-21 | Spectacle lens with small aberration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6450012A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0560999A1 (en) * | 1991-10-09 | 1993-09-22 | Seiko Epson Corporation | Lens for glasses |
US5767939A (en) * | 1991-10-09 | 1998-06-16 | Seiko Epson Corporation | Eyeglass lens |
US5825454A (en) * | 1996-01-16 | 1998-10-20 | Hoya Corporation | Aspherical spectacle lens |
WO2008069393A1 (en) * | 2006-12-08 | 2008-06-12 | Jae-Moon Roh | Glasses lens for correcting eyesight |
JP2009003464A (en) * | 2000-10-30 | 2009-01-08 | Sola Internatl Inc | Wide field spherical lens and protective eyewear |
WO2013094153A1 (en) * | 2011-12-20 | 2013-06-27 | セイコーエプソン株式会社 | Eyeglasses lens |
WO2018096647A1 (en) * | 2016-11-25 | 2018-05-31 | 伊藤光学工業株式会社 | Method for designing vision correction lens, and vision correction lens |
WO2021059660A1 (en) * | 2019-09-26 | 2021-04-01 | 学校法人北里研究所 | Method for designing eyeglass lens, designing device, server device, terminal device, order system, information providing system, and program |
JP2021510410A (en) * | 2018-01-19 | 2021-04-22 | レイセオン カナダ リミテッド | Flat optics combiner with built-in off-axis aspheric mirror for compact reflective sights |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52136644A (en) * | 1976-05-11 | 1977-11-15 | Seiko Epson Corp | Lens for spectacles |
-
1987
- 1987-08-21 JP JP20650987A patent/JPS6450012A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52136644A (en) * | 1976-05-11 | 1977-11-15 | Seiko Epson Corp | Lens for spectacles |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0560999A1 (en) * | 1991-10-09 | 1993-09-22 | Seiko Epson Corporation | Lens for glasses |
EP0560999A4 (en) * | 1991-10-09 | 1995-03-15 | Seiko Epson Corp | Lens for glasses |
US5479220A (en) * | 1991-10-09 | 1995-12-26 | Seiko Epson Corporation | Eyeglass lens |
US5767939A (en) * | 1991-10-09 | 1998-06-16 | Seiko Epson Corporation | Eyeglass lens |
US5825454A (en) * | 1996-01-16 | 1998-10-20 | Hoya Corporation | Aspherical spectacle lens |
JP2009003464A (en) * | 2000-10-30 | 2009-01-08 | Sola Internatl Inc | Wide field spherical lens and protective eyewear |
WO2008069393A1 (en) * | 2006-12-08 | 2008-06-12 | Jae-Moon Roh | Glasses lens for correcting eyesight |
WO2013094153A1 (en) * | 2011-12-20 | 2013-06-27 | セイコーエプソン株式会社 | Eyeglasses lens |
JP2013130619A (en) * | 2011-12-20 | 2013-07-04 | Seiko Epson Corp | Spectacle lens |
WO2018096647A1 (en) * | 2016-11-25 | 2018-05-31 | 伊藤光学工業株式会社 | Method for designing vision correction lens, and vision correction lens |
CN109196407A (en) * | 2016-11-25 | 2019-01-11 | 伊藤光学工业株式会社 | The design method and vision correction eyeglass of vision correction eyeglass |
US11131868B2 (en) | 2016-11-25 | 2021-09-28 | Itoh Optical Industrial Co., Ltd. | Method for corrective lens and corrective lens |
JP2021510410A (en) * | 2018-01-19 | 2021-04-22 | レイセオン カナダ リミテッド | Flat optics combiner with built-in off-axis aspheric mirror for compact reflective sights |
WO2021059660A1 (en) * | 2019-09-26 | 2021-04-01 | 学校法人北里研究所 | Method for designing eyeglass lens, designing device, server device, terminal device, order system, information providing system, and program |
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