Invention Grant
- Patent Title: Circadian rhythm optical film
-
Application No.: US14220193Application Date: 2014-03-20
-
Publication No.: US09739916B2Publication Date: 2017-08-22
- Inventor: Michael F. Weber , Jonathan T. Kahl , Glenn E. Casner
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN Saint Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN Saint Paul
- Main IPC: G02C7/10
- IPC: G02C7/10 ; G02B5/28 ; G02B5/20 ; B32B27/08

Abstract:
An optical film includes a polymeric bandstop filter reflecting a band of blue light in a range from 440 nm to 480 nm a polymeric bandstop filter reflecting a band of blue light in a range from 440 nm to 480 nm and transmitting greater than 50% of blue light at a wavelength of 10 nm longer than a long wavelength band edge and at a wavelength of 10 nm shorter than a short wavelength band edge.
Public/Granted literature
- US20150268396A1 CIRCADIAN RHYTHM OPTICAL FILM Public/Granted day:2015-09-24
Information query