JPS57144502A - Composite fresnel condenser - Google Patents
Composite fresnel condenserInfo
- Publication number
- JPS57144502A JPS57144502A JP56030075A JP3007581A JPS57144502A JP S57144502 A JPS57144502 A JP S57144502A JP 56030075 A JP56030075 A JP 56030075A JP 3007581 A JP3007581 A JP 3007581A JP S57144502 A JPS57144502 A JP S57144502A
- Authority
- JP
- Japan
- Prior art keywords
- fresnel condenser
- composite fresnel
- condenser
- fresnel
- thin
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE:To easily produce a thin and inexpensive composite Fresnel condenser which is formed on a single surface from plural Fresnel surfaces, by decreasing the focal distance as the zone surface goes farther away from the optical axis and therefore obtaining a uniform distribution of the condensing density. CONSTITUTION:The focal distance is decreased as the zone surface goes farther away from the optical axis for a composite Fresnel condenser which is formed on a single surface from plural Fresnel surfaces. As a result, the distribution of the condensing density becomes uniform on the light receiving surface KK. In such way, a thin and inexpensive composite Fresnel condenser is obtained in a simple way of production.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56030075A JPS57144502A (en) | 1981-03-02 | 1981-03-02 | Composite fresnel condenser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56030075A JPS57144502A (en) | 1981-03-02 | 1981-03-02 | Composite fresnel condenser |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57144502A true JPS57144502A (en) | 1982-09-07 |
Family
ID=12293672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56030075A Pending JPS57144502A (en) | 1981-03-02 | 1981-03-02 | Composite fresnel condenser |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57144502A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4775229A (en) * | 1985-02-22 | 1988-10-04 | Nippon Kogaku K. K. | Fresnel lens in a finder optical system |
EP0772077A3 (en) * | 1995-10-30 | 1998-06-10 | Sony Corporation | Projection-type display device |
US6084670A (en) * | 1997-03-11 | 2000-07-04 | Nihon Kohden Corporation | Particle analyzer and composite lens formed by integrally joining plural lens elements of different focal points |
US6462891B1 (en) * | 2000-04-20 | 2002-10-08 | Raytheon Company | Shaping optic for diode light sheets |
EP1521044A2 (en) * | 2003-09-24 | 2005-04-06 | C.R.F. Società Consortile per Azioni | Multifocal light concentrator for a device for the conversion of radiation, and in particular for the conversion of solar radiation into electrical, thermal or chemical energy |
JP2008523593A (en) * | 2003-12-11 | 2008-07-03 | ワールド エナジー ソリューションズ ピーティーワイ リミテッド | Solar energy collection system |
WO2008152176A2 (en) * | 2007-06-12 | 2008-12-18 | Concentración Solar La Mancha, S.L. | Optical system for capture and concentration of solar energy |
WO2011005486A3 (en) * | 2009-06-22 | 2012-01-19 | Solarmation, Inc. | Optics for concentrated photovoltaic cell |
JP2017101912A (en) * | 2015-08-18 | 2017-06-08 | ザ・ボーイング・カンパニーThe Boeing Company | Solar refraction device for heating industrial material |
-
1981
- 1981-03-02 JP JP56030075A patent/JPS57144502A/en active Pending
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4775229A (en) * | 1985-02-22 | 1988-10-04 | Nippon Kogaku K. K. | Fresnel lens in a finder optical system |
EP0772077A3 (en) * | 1995-10-30 | 1998-06-10 | Sony Corporation | Projection-type display device |
KR100454725B1 (en) * | 1995-10-30 | 2005-01-13 | 소니 가부시끼 가이샤 | Projection type display device |
US6084670A (en) * | 1997-03-11 | 2000-07-04 | Nihon Kohden Corporation | Particle analyzer and composite lens formed by integrally joining plural lens elements of different focal points |
US6157500A (en) * | 1997-03-11 | 2000-12-05 | Nihon Kohden Corporation | Particle analyzer and composite lens formed by integrally joining plural lens elements of different focal points |
US6409141B1 (en) | 1997-03-11 | 2002-06-25 | Nihon Kohden Corporation | Particle analyzer and composite lens formed by integrally joining plural lens elements of different focal points |
US6462891B1 (en) * | 2000-04-20 | 2002-10-08 | Raytheon Company | Shaping optic for diode light sheets |
EP1521044A3 (en) * | 2003-09-24 | 2008-07-02 | C.R.F. Società Consortile per Azioni | Multifocal light concentrator for a device for the conversion of radiation, and in particular for the conversion of solar radiation into electrical, thermal or chemical energy |
EP1521044A2 (en) * | 2003-09-24 | 2005-04-06 | C.R.F. Società Consortile per Azioni | Multifocal light concentrator for a device for the conversion of radiation, and in particular for the conversion of solar radiation into electrical, thermal or chemical energy |
US7952017B2 (en) | 2003-09-24 | 2011-05-31 | Crf Societa Consortile Per Azioni | Multifocal light concentrator for a device for the conversion of radiation, and in particular for the conversion of solar radiation into electrical, thermal or chemical energy |
JP2008523593A (en) * | 2003-12-11 | 2008-07-03 | ワールド エナジー ソリューションズ ピーティーワイ リミテッド | Solar energy collection system |
WO2008152176A2 (en) * | 2007-06-12 | 2008-12-18 | Concentración Solar La Mancha, S.L. | Optical system for capture and concentration of solar energy |
WO2008152157A1 (en) * | 2007-06-12 | 2008-12-18 | Concentración Solar La Mancha, S.L. | Refractive optical system for collecting and concentrating solar energy |
WO2008152176A3 (en) * | 2007-06-12 | 2009-03-26 | Concentracion Solar La Mancha | Optical system for capture and concentration of solar energy |
WO2011005486A3 (en) * | 2009-06-22 | 2012-01-19 | Solarmation, Inc. | Optics for concentrated photovoltaic cell |
JP2017101912A (en) * | 2015-08-18 | 2017-06-08 | ザ・ボーイング・カンパニーThe Boeing Company | Solar refraction device for heating industrial material |
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