US 9,316,782 B2Granted

Coverless linear light source light guide with hooded bracket

AssigneePixon Technologies Corp.

InventorsYen-Chieh Chen, Shih Che Chen, Chien Liang Liao

Life of this patent

Estimating the term…

Loading patent…

Abstract

A coverless linear light source light guide with hooded bracket for holding a light emitting diode (LED) module to the light guide is disclosed. The hooded bracket is disposed around the light receiving end of the light guide and comprises a hood top, a hood back, two hood sides, and two hood grasps disposed on the hood sides. The hood back comprises the light receiving end of the light guide where light enters the light guide. The hood grasp comprises grasping elements that mate with grasping elements of the LED module to securely hold the LED module to the light guide. The hooded bracket ensures that the distance between the LED module and the light guide and the angle of the LED module and the light guide is constant which maintains optimal alignment and proximity in order to conserve received light intensity and maintain uniformity of emitted light.

Claims18

Dependent claims

A linear light source comprising:

a light emitting diode module;
a hooded bracket;
and
a light guide comprising:
a light receiving end for receiving light emitted by the light emitting diode module;
the hooded bracket being disposed around the light receiving end, the hooded bracket being provided for securely attaching the light emitting diode module to the light guide;
a plurality of side surfaces, at one of the side surfaces for being grasped by a main housing to hold the light guide to the main housing;
and
a light emitting surface for emitting light disposed between two of the side surfaces;
the plurality of side surfaces further comprising:
a top groove for holding the light guide by a top clip of the main housing;
a light reflecting patterned surface;
a bottom side surface;
and
an angled side surface;
wherein the bottom side surface is disposed between the light reflecting patterned surface and the angled side surface, the angled side surface is disposed between the bottom side surface and the top groove, the light reflecting patterned surface reflects light received through the light receiving end.

13 more elements

A linear light source comprising:

a light emitting diode module;
a hooded bracket;
and
a light guide comprising:
a light receiving end for receiving light emitted by a light emitting diode module;
the hooded bracket being disposed around the light receiving end, the hooded bracket being provided for attaching the light emitting diode module to the light guide to maintain optimal alignment and proximity in order to conserve received light intensity and maintain uniformity of emitted light;
a side groove for holding the light guide by a side clip of a main housing;
a top groove for holding the light guide by a top clip of the main housing;
a light emitting surface for emitting reflected light;
a light reflecting patterned surface disposed on a side of the light guide between the side groove and the top groove for reflecting light towards the light emitting surface;
and
a plurality of side surfaces disposed around the light emitting surface, the plurality of side surfaces comprising:
a bottom side surface;
and
an angled side surface, the bottom side surface disposed between the light reflecting patterned surface and the angled side surface, the angled side surface disposed between the bottom side surface and the top groove.

12 more elements

A linear light source comprising:

a light emitting diode module;
a hooded bracket;
and
a light guide comprising:
a light receiving end for receiving light emitted by the light emitting diode module;
the hooded bracket being disposed on the light receiving end of the light guide for holding the light emitting diode module to the light guide;
the hooded bracket comprising:
a hood back, a portion of the hood back comprising the light receiving end of the light guide;
a hood top;
disposed over the hood back;
and
a pair of hood sides disposed on the hood back;
a side groove for holding the light guide by a side clip of a main housing;
a top groove for holding the light guide by a top clip of the main housing;
a light emitting surface for emitting reflected light;
a light reflecting patterned surface disposed on a side of the light guide between the side groove and the top groove for reflecting light towards the light emitting surface, the light reflecting patterned surface eliminating need of a reflective cover around the light guide, the light reflecting patterned surface comprising a plurality of peaks and a plurality of valleys, the plurality of valleys gradually increasing in depth away from the light receiving end of the light guide;
a right side surface disposed between the side groove and the light reflecting patterned surface, the side groove disposed between the right side surface and the light emitting surface;
a bottom side surface;
an angled side surface, the bottom side surface disposed between the light reflecting patterned surface and the angled side surface, the angled side surface disposed between the bottom side surface and the top groove;
and
a left side surface disposed between the top groove and the light emitting surface.

18 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/138,795Filed 23 Dec 2013
Published: US 2015/0177452 A125 Jun 2015
Granted: 19 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G02B 6/0091
Positioning aspects: of the light source relative to the light guide
G02B 6/001
The light guides being of the fibre type: the light being emitted along at least a portion of the lateral surface of the fibre
H04N 1/02815
For picture information pick-up: means for illuminating the original, not specific to a particular type of pick-up head
G02B 6/0038
Provided on the surface of the light guide or in the bulk of it: linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves,…