US 8,944,666 B2Granted

Lighting device

AssigneeLextar Electronics Corporation

InventorShih-Chin Chou

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Abstract

A lighting device is provided and includes a light guide plate including a plurality of light incident surfaces and two light emitting surfaces, a plurality of edge frames, and at least one light source. Each of the edge frames includes a main body including an accommodating groove and an opening, first and second clamp members, and first and second fixing elements respectively located on first and second ends of the main body. The light emitting surfaces are clamped by the first and second clamp members of each edge frame. Each of the light incident surfaces is inserted in the main body of one of the edge frames through the opening and accommodated in the accommodating groove. The light source is located in the accommodating groove of one of the edge frames and adjacent to the corresponding light incident surface.

Claims22

Dependent claims

A lighting device comprising:

an N-sided polygonal light guide plate comprising N light incident surfaces and two opposite light emitting surfaces, wherein each of the light incident surfaces is perpendicular to the light emitting surfaces, and N is a natural number more than or equal to 3;
N edge frames, wherein each of the edge frames corresponds to one of the light incident surfaces, and each of the edge frames comprises:
a main body bendedly formed by a first, a second, and a third adjacent rectangular planes, wherein the main body comprises an accommodating groove and an opening;
a first clamp member and a second clamp member symmetrically extending outward respectively from the edges of the first and the third rectangular planes, wherein a top and a bottom surfaces of the light guide plate corresponding respectively to the light emitting surfaces are respectively clamped by the first and the second clamp members of the edge frame, and the corresponding light incident surface is inserted in the main body of the edge frame through the opening of the main body of the edge frame, such that the corresponding light incident surface is accommodated in the accommodating groove of the edge frame;
and
a first fixing element and a second fixing element respectively disposed on a first and a second ends of the main body of the edge frame, wherein the edge frame is pivoted to the second and the first fixing elements disposed on the main body of an adjacent one of the edge frames respectively by the first and the second fixing elements thereof, and the first fixing element of the edge frame accommodates the second fixing element of the adjacent one of the edge frames;
and
at least one light source disposed in the accommodating groove of one of the edge frames and adjacent to the corresponding light incident surface, wherein when light is emitted from the light source, the light enters the light guide plate from the corresponding light incident surface, and is emitted through the two light emitting surfaces.

5 more elements

A lighting device comprising:

an N-sided polygonal light guide plate comprising N light incident surfaces and two opposite light emitting surfaces, wherein each of the light incident surfaces is perpendicular to the light emitting surfaces, and N is a natural number more than or equal to 3;
N edge frames, wherein each of the edge frames corresponds to one of the light incident surfaces, and each of the edge frames comprises:
a main body bendedly formed by a first, a second, and a third adjacent rectangular planes, wherein the main body comprises an accommodating groove and an opening;
a first clamp member and a second clamp member symmetrically extending outward respectively from the edges of the first and the third rectangular planes, wherein a top and a bottom surfaces of the light guide plate corresponding respectively to the light emitting surfaces are respectively clamped by the first and the second clamp members of the edge frame, and the corresponding light incident surface is inserted in the main body of the edge frame through the opening of the main body of the edge frame, such that the corresponding light incident surface is accommodated in the accommodating groove of the edge frame;
and
a third clamp member disposed on an end of the main body of the edge frame for clamping an end of one of the edge frames adjacent to the third clamp member, wherein the third clamp member of the edge frame accommodates the end of one of the edge frames adjacent to the third clamp member;
and
at least one light source disposed in the accommodating groove of one of the edge frames and adjacent to the corresponding light incident surface, wherein when light is emitted from the light source, the light enters the light guide plate from the corresponding light incident surface, and is emitted through the two light emitting surfaces.

5 more elements

A lighting device comprising:

a 2M-sided polygonal light guide plate comprising 2M light incident surfaces and two opposite light emitting surfaces, wherein each of the light incident surfaces is perpendicular to the light emitting surfaces, and M is a natural number more than or equal to 2;
M edge frames, wherein each of the edge frames corresponds to two adjacent light incident surfaces, and each of the edge frames comprises:
a main body bendedly formed by a first, a second, and a third adjacent rectangular planes, wherein the main body comprises an accommodating groove and an opening;
a first clamp member and a second clamp member symmetrically extending outward respectively from the edges of the first and the third rectangular planes, wherein a top and a bottom surfaces of the light guide plate corresponding respectively to the light emitting surfaces are respectively clamped by the first and the second clamp members of the edge frame, and the corresponding light incident surface is inserted in the main body of the edge frame through the opening of the main body of the edge frame, such that the corresponding light incident surface is accommodated in the accommodating groove of one of the edge frames;
and
a third clamp member disposed on an end of the main body of the edge frame for clamping an end of one of the edge frames adjacent to the third clamp member, wherein the third clamp member of the edge frame accommodates the end of one of the edge frames adjacent to the third clamp member;
and
at least one light source disposed in the accommodating groove of one of the edge frames and adjacent to the corresponding light incident surface, wherein when light is emitted from the light source, the light enters the light guide plate from the corresponding light incident surface, and is emitted through the two light emitting surfaces.

5 more elements

Dependencies are inferred from the claim text.

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Abstract

A lighting device comprising:

an N-sided polygonal light guide plate comprising N light incident surfaces and two opposite light emitting surfaces, wherein each of the light incident surfaces is perpendicular to the light emitting surfaces, and N is a natural number more than or equal to 3;
N edge frames, wherein each of the edge frames corresponds to one of the light incident surfaces, and each of the edge frames comprises:
a main body bendedly formed by a first, a second, and a third adjacent rectangular planes, wherein the main body comprises an accommodating groove and an opening;
a first clamp member and a second clamp member symmetrically extending outward respectively from the edges of the first and the third rectangular planes, wherein a top and a bottom surfaces of the light guide plate corresponding respectively to the light emitting surfaces are respectively clamped by the first and the second clamp members of the edge frame, and the corresponding light incident surface is inserted in the main body of the edge frame through the opening of the main body of the edge frame, such that the corresponding light incident surface is accommodated in the accommodating groove of the edge frame;
and
a first fixing element and a second fixing element respectively disposed on a first and a second ends of the main body of the edge frame, wherein the edge frame is pivoted to the second and the first fixing elements disposed on the main body of an adjacent one of the edge frames respectively by the first and the second fixing elements thereof, and the first fixing element of the edge frame accommodates the second fixing element of the adjacent one of the edge frames;
and
at least one light source disposed in the accommodating groove of one of the edge frames and adjacent to the corresponding light incident surface, wherein when light is emitted from the light source, the light enters the light guide plate from the corresponding light incident surface, and is emitted through the two light emitting surfaces.

5 more elements