Invention Grant
- Patent Title: Optical structures for redirecting daylight
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Application No.: US15521389Application Date: 2015-06-18
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Publication No.: US10422497B2Publication Date: 2019-09-24
- Inventor: Thomas R. Hoffend, Jr.
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agent Jeffrey M. Olofson
- International Application: PCT/US2015/036395 WO 20150618
- International Announcement: WO2016/099600 WO 20160623
- Main IPC: F21S11/00
- IPC: F21S11/00 ; G02B5/02 ; G02B5/122 ; G02B5/126

Abstract:
Window glass having sun-facing daylight redirecting optical structures with an embedded surface diffuser patterned on them. The optical structures are generally linear and formed from a repeating unit cell. Each unit cell has a base, two or more peaks opposite the base, and at least one curved side between the base and the peaks. The other sides between the base and the peaks can be substantially straight, curved, or a series of facets approximating a curve.
Public/Granted literature
- US20170307788A1 OPTICAL STRUCTURES FOR REDIRECTING DAYLIGHT Public/Granted day:2017-10-26
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