ES8302920A1 - Optical grating for correction of optical astigmation - Google Patents
Optical grating for correction of optical astigmationInfo
- Publication number
- ES8302920A1 ES8302920A1 ES509018A ES509018A ES8302920A1 ES 8302920 A1 ES8302920 A1 ES 8302920A1 ES 509018 A ES509018 A ES 509018A ES 509018 A ES509018 A ES 509018A ES 8302920 A1 ES8302920 A1 ES 8302920A1
- Authority
- ES
- Spain
- Prior art keywords
- bars
- optical
- correction
- astigmation
- parallelly
- 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.)
- Expired
Links
Landscapes
- Eyeglasses (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Lenses (AREA)
Abstract
Optic grille used to correct optical aberrations. Consists of a first plurality of bars (2) of triangular transversal section, which are parallelly available between themselves; and of a second plurality of bars (3) also of triangular transversal section, which are also available parallelly between themselves; but in a perpendicular relationship with respect to the first bars (2), so that the two series of bars (2, 3) form a grid that delimates square-size openings (4), in order to permit the passage of the light. Of application in the correction of optical aberrations, both in natural lenses such as the eye, and in photographic and similar lenses. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX18566781A MX158187A (en) | 1981-01-23 | 1981-01-23 | IMPROVEMENTS IN GRID CORRECTOR OF OPTICAL ABERRATIONS |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8302920A1 true ES8302920A1 (en) | 1983-02-01 |
ES509018A0 ES509018A0 (en) | 1983-02-01 |
Family
ID=19747481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES509018A Granted ES509018A0 (en) | 1981-01-23 | 1982-01-23 | "A USEFUL OPTICAL GRID TO CORRECT OPTICAL ABERRATIONS". |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS57158828A (en) |
BR (1) | BR8200405A (en) |
ES (1) | ES509018A0 (en) |
MX (1) | MX158187A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6474526A (en) * | 1987-09-17 | 1989-03-20 | Shiyuuhou Kk | Seeing through optical member |
KR101841717B1 (en) * | 2016-11-18 | 2018-03-23 | 양원종 | An optical device for recovering eyesight |
KR102096537B1 (en) * | 2018-11-01 | 2020-04-02 | 황두원 | Pinhole glasses |
-
1981
- 1981-01-23 MX MX18566781A patent/MX158187A/en unknown
-
1982
- 1982-01-22 BR BR8200405A patent/BR8200405A/en not_active IP Right Cessation
- 1982-01-22 JP JP772982A patent/JPS57158828A/en active Granted
- 1982-01-23 ES ES509018A patent/ES509018A0/en active Granted
Also Published As
Publication number | Publication date |
---|---|
BR8200405A (en) | 1982-11-30 |
JPS57158828A (en) | 1982-09-30 |
JPH0157889B2 (en) | 1989-12-07 |
MX158187A (en) | 1989-01-16 |
ES509018A0 (en) | 1983-02-01 |
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