Invention Grant
- Patent Title: Optical display element composed of selectively illuminable concentric rings
- Patent Title (中): 光学显示元件由选择性照明的同心环组成
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Application No.: US13382942Application Date: 2010-07-15
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Publication No.: US08690415B2Publication Date: 2014-04-08
- Inventor: Joachim Korherr , Harald Koehnlein
- Applicant: Joachim Korherr , Harald Koehnlein
- Applicant Address: DE Radolfzell
- Assignee: TRW Automotive Electronics & Components GmbH
- Current Assignee: TRW Automotive Electronics & Components GmbH
- Current Assignee Address: DE Radolfzell
- Agency: Tarolli, Sundheim, Covell & Tummino LLP
- Priority: DE102009036211 20090805
- International Application: PCT/EP2010/004319 WO 20100715
- International Announcement: WO2011/015278 WO 20110210
- Main IPC: G02B6/00
- IPC: G02B6/00

Abstract:
An optical display element (10) made up of selectively illuminatable concentric rings (14) is provided, in which the rings (14) are obtained by the light exit surface (20) of a respective optical waveguide body (18). Each optical waveguide body (18) has a light entry surface (22) which couples light in from an associated light source (24) which is adapted to be selectively activated. The light entry surface (22), as related to the common axis (12), has a larger radial extent than the light exit surface (20). Further, the optical waveguide bodies (18) have directly radially adjacent light-blocking side surfaces (30). Owing to this configuration, it is solely the optical waveguide bodies (18) which determine the geometry of the concentric rings (14). Since the optical waveguide bodies (18) can be manufactured with high precision, the intended close tolerances are obtained. In this way, radial distances between the rings (14) of only approximately 0.2 mm or less can be achieved.
Public/Granted literature
- US20130039089A1 OPTICAL DISPLAY ELEMENT COMPOSED OF SELECTIVELY ILLUMINABLE CONCENTRIC RINGS Public/Granted day:2013-02-14
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