Linear illumination device

Patent metadata

Field	Value
Publication number	US-10569699-B2
Application number	US-201615260977-A
Country	US
Kind code	B2
Filing date	Sep 9, 2016
Priority date	Sep 10, 2015
Publication date	Feb 25, 2020
Grant date	Feb 25, 2020

Abstract

A linear illumination device is provided in which a transparent light guide made of glass is recessed in a profile opposite to a dark surface. A linear illumination device is also provided having a glass fiber bundle in a dyed tube.

First claim

What is claimed is:

1. A linear illumination device, comprising a side-emitting transparent light guide made of glass held in a profile with positive interlocking fit by outward facing projections on a mounting member, wherein the mounting member has wings laterally projecting beyond the light guide with the glass directly defining a light exit surface through which light can be seen.

2. The linear illumination device as claimed in claim 1 , wherein the mounting member and the profile have complementary interlocking elements that secure the mounting member.

3. The linear illumination device as claimed in claim 1 , wherein the mounting member is secured against rotation relative to the profile.

4. The linear illumination device as claimed in claim 1 , further comprising an opening angle to a viewer that is limited by the mounting member, and wherein the opening angle is less than 90°.

5. The linear illumination device as claimed in claim 1 , wherein the side-emitting transparent light guide has a rear side that is dark has an L* value of less than 40 in the L*a*b* color space.

6. The linear illumination device as claimed in claim 1 , wherein the profile is dark and has an L* value of less than 40 in the L*a*b* color space.

7. The linear illumination device as claimed in claim 1 , wherein the side-emitting transparent light guide is set back relative to the profile by at least 0.5 mm.

8. The linear illumination device as claimed in claim 1 , wherein the side-emitting transparent light guide is connected, via a flexible light guide, to an LED light source that is arranged at an angle relative to the side-emitting transparent light guide.

9. The linear illumination device as claimed in claim 8 , wherein the flexible light guide and the LED light source are arranged in a cap attached to the profile.

10. The linear illumination device as claimed in claim 1 , wherein the mounting member surrounds the side-emitting transparent light guide by at least 270°.

11. A linear illumination device, comprising:
a side-emitting transparent light guide made of glass and having a light exit surface;
a profile having a light exit opening and mounting recesses on an inner surface; and
a mounting member enclosing the side-emitting transparent light guide with at least the light exit surface visible through the light exit opening of the profile and with the glass directly defining the light exit surface through which the light can be seen through light exit opening, the mounting member having form-fitting elements on an outer surface that are seated in the recesses of the profile with the side-emitting light guide set back relative to the profile so that the side-emitting light guide is protected from damage, wherein the mounting member further comprises wings protruding beyond the side-emitting light guide to further protect the side-emitting light guide from damage.

12. The linear illumination device as claimed in claim 11 , wherein the mounting member surrounds the side-emitting transparent light guide by at least 270°.

13. The linear illumination device as claimed in claim 11 , wherein the mounting member is secured against rotation relative to the profile by the form fitting elements.

Assignees

• Schott Ag

Inventors

• Schabacker Stephan
• Russert Hubertus
• Senner Eric
• Kappel Markus

Classifications

• F21W2107/10

  for land vehicles · CPC title

• B60Q3/217

  Doors, e.g. door sills; Steps · CPC title

• G02B6/0006

  Coupling light into the fibre (in general G02B6/4298) · CPC title

• B60Q1/2696

  Mounting of devices using LEDs · CPC title

• B60Q3/64

  for a single lighting device · CPC title