Invention Application
- Patent Title: FRESNEL LENS
- Patent Title (中): FRESNEL镜片
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Application No.: PCT/US2010/053012Application Date: 2010-10-18
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Publication No.: WO2011056396A2Publication Date: 2011-05-12
- Inventor: HARTZELL, Andrew K. , JONZA, James M. , JOHNSON, Michael A. , BENSON, Olester, Jr.
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY , HARTZELL, Andrew K. , JONZA, James M. , JOHNSON, Michael A. , BENSON, Olester, Jr.
- Applicant Address: 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427 US
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY,HARTZELL, Andrew K.,JONZA, James M.,JOHNSON, Michael A.,BENSON, Olester, Jr.
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY,HARTZELL, Andrew K.,JONZA, James M.,JOHNSON, Michael A.,BENSON, Olester, Jr.
- Current Assignee Address: 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427 US
- Agency: OLOFSON, Jeffrey M. et al.
- Priority: US61/254,910 20091026
- Main IPC: G02B3/08
- IPC: G02B3/08 ; G02B1/04 ; B29D11/00 ; C08L75/04
Abstract:
Fresnel lenses are prepared from a transparent substrate and a structured polyurethane layer. The structured polyurethane layer includes a curable reaction mixture. The curable reaction mixture includes a polyol, a polyisocyanate, a catalyst, and at least one UV stabilizer. The Fresnel lenses may be used in panel arrays and in solar power generation devices.
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