JPS52143847A - Optical lens - Google Patents
Optical lensInfo
- Publication number
- JPS52143847A JPS52143847A JP6158176A JP6158176A JPS52143847A JP S52143847 A JPS52143847 A JP S52143847A JP 6158176 A JP6158176 A JP 6158176A JP 6158176 A JP6158176 A JP 6158176A JP S52143847 A JPS52143847 A JP S52143847A
- Authority
- JP
- Japan
- Prior art keywords
- optical lens
- provding
- render
- contrast
- improve
- 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
Landscapes
- Solid State Image Pick-Up Elements (AREA)
Abstract
PURPOSE: To improve the contrast by provding a photo absorbing film at a part of the Fresnel lens, etc. which does not render the optical performance.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6158176A JPS52143847A (en) | 1976-05-26 | 1976-05-26 | Optical lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6158176A JPS52143847A (en) | 1976-05-26 | 1976-05-26 | Optical lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52143847A true JPS52143847A (en) | 1977-11-30 |
Family
ID=13175230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6158176A Pending JPS52143847A (en) | 1976-05-26 | 1976-05-26 | Optical lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52143847A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61130903A (en) * | 1984-11-30 | 1986-06-18 | Hitachi Ltd | Fresnel lens and its production |
JPS62251702A (en) * | 1986-04-25 | 1987-11-02 | Toppan Printing Co Ltd | Production of fresnel plate having light absorbing layer |
JPS62251701A (en) * | 1986-04-25 | 1987-11-02 | Toppan Printing Co Ltd | Production of fresnel plate having light absorbing layer |
JPS63125802U (en) * | 1987-02-09 | 1988-08-17 | ||
US7239444B2 (en) | 2003-09-29 | 2007-07-03 | Konica Minolta Holdings, Inc. | Display front plane, display lenticular lens, and display fresnel lens |
JP2017129753A (en) * | 2016-01-20 | 2017-07-27 | パナソニックIpマネジメント株式会社 | Fresnel lens and head-up display |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4922770A (en) * | 1972-06-22 | 1974-02-28 | ||
JPS5016549A (en) * | 1973-05-02 | 1975-02-21 |
-
1976
- 1976-05-26 JP JP6158176A patent/JPS52143847A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4922770A (en) * | 1972-06-22 | 1974-02-28 | ||
JPS5016549A (en) * | 1973-05-02 | 1975-02-21 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61130903A (en) * | 1984-11-30 | 1986-06-18 | Hitachi Ltd | Fresnel lens and its production |
JPH0525081B2 (en) * | 1984-11-30 | 1993-04-09 | Hitachi Ltd | |
JPS62251702A (en) * | 1986-04-25 | 1987-11-02 | Toppan Printing Co Ltd | Production of fresnel plate having light absorbing layer |
JPS62251701A (en) * | 1986-04-25 | 1987-11-02 | Toppan Printing Co Ltd | Production of fresnel plate having light absorbing layer |
JPS63125802U (en) * | 1987-02-09 | 1988-08-17 | ||
US7239444B2 (en) | 2003-09-29 | 2007-07-03 | Konica Minolta Holdings, Inc. | Display front plane, display lenticular lens, and display fresnel lens |
JP2017129753A (en) * | 2016-01-20 | 2017-07-27 | パナソニックIpマネジメント株式会社 | Fresnel lens and head-up display |
WO2017126353A1 (en) * | 2016-01-20 | 2017-07-27 | パナソニックIpマネジメント株式会社 | Fresnel lens, fresnel lens unit, and head-up display |
US10670780B2 (en) | 2016-01-20 | 2020-06-02 | Panasonic Intellectual Property Management Co., Ltd. | Fresnel lens, Fresnel lens unit, and head-up display |
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