Invention Grant
- Patent Title: Lighting device, lens and method, having a mixing structure with a variable blurring strength
-
Application No.: US15570428Application Date: 2016-05-11
-
Publication No.: US10247385B2Publication Date: 2019-04-02
- Inventor: Johannes Maria Thijssen , Fabio Fornasa , Rusian Akhmedovich Sepkhanov , Inge Van De Wouw
- Applicant: SIGNIFY HOLDING B.V.
- Applicant Address: NL Eindhoven
- Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP15168365 20150520
- International Application: PCT/JP2016/060551 WO 20160511
- International Announcement: WO2016/184748 WO 20161124
- Main IPC: F21K9/60
- IPC: F21K9/60 ; F21K9/62 ; F21V5/00 ; F21V5/04 ; G02B5/02 ; F21V13/00 ; F21V14/06 ; F21Y101/00 ; F21Y115/10
Abstract:
The invention relates to a lighting device for issuing a light beam in a main direction along an optical axis. The lighting device comprises a light source and a positive, refractive lens provided on the optical axis, the lens being movable with respect to the light source over the optical axis. The lighting device further comprises a mixing structure provided on the optical axis and having an added blurring strength FWHM, with FWHM being in a range of 3° to 15°.
Public/Granted literature
- US20180156415A1 LIGHTING DEVICE, LENS AND METHOD Public/Granted day:2018-06-07
Information query
