TW201516340A - Light guiding device - Google Patents

Abstract

A light guiding device includes a printed circuit board and a light guiding structure. The printed circuit board includes a board body and a plurality of first light sources mounted on the board body. The plurality of first light sources are arranged in a circle. The light guiding structure includes a light guiding main member. The light guiding main member defines a plurality of cutouts. The light guiding main member is placed on the board body to enable each cutouts to receive a first light source. The plurality of first light source to emit light to the light guiding main member to enable the light guiding main member to light via the edges of the plurality of the cutouts.

Description

Light guiding device

The invention relates to a light guiding device that emits light uniformly.

Generally, the panel is provided with a light-transmitting area and a light guiding device disposed behind the light-transmitting area. The light guiding device includes a light source and a light guiding strip. When the computer is turned on, the light source emits light, and the light passes through the guide. The light strip is transmitted to the light transmissive area. However, the light guiding strip emits light unevenly to affect the visual effect of the light transmitting region.

In view of the above, it is necessary to provide a light guiding device having uniform light emission.

A light guiding device includes a circuit board and a light guiding structure, the circuit board includes a circuit board body and a plurality of first light sources mounted on the circuit board body, the plurality of first light sources are evenly arranged Forming a ring on the circuit board body, the light guiding structure includes a light guiding main component, the light guiding main component is provided with a plurality of slits, and the light guiding main component is placed on the circuit board Each of the cutouts receives a first light source, and the plurality of first light sources emit light to introduce light into the light guiding main member through the edges of the plurality of slits to cause the light guiding main member to emit light.

Compared with the prior art, the light guiding main member of the light guiding device is provided with a plurality of slits, and a first light source is disposed in each slit, and the plurality of first light sources emit light and the light passes through the edges of the plurality of slits. Introduced into the light guiding main member to uniformly illuminate the light guiding main body.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a preferred embodiment of a light guiding device of the present invention.

2 is an exploded perspective view of the light guiding structure of FIG. 1.

3 is an assembled, isometric view of FIG. 1.

Referring to FIG. 1 and FIG. 2, in a preferred embodiment of the present invention, a light guiding device includes a circuit board 10 and a light guiding structure 30.

The circuit board 10 includes a circuit board body 11, a plurality of first light sources 13 mounted on the circuit board body 11, and two second light sources 15 mounted on the circuit board body 11. The first light source 13 is evenly distributed on the circuit board body 11 and formed to form a ring shape. The two second light sources 15 are located in the ring. In this embodiment, the first light source 13 and the second light source 15 are both light emitting diodes.

The light guiding structure 30 includes a light guiding main component 31, a light guiding auxiliary component 33, an outer light reflecting layer 34, a middle light reflecting layer 35 and an inner light reflecting layer 36.

The light guiding main member 31 has an annular shape, the light guiding main member 31 is provided with a circular outer edge 311, and the light guiding main member 31 is further provided with a plurality of inwardly extending from the outer edge 311. The slit 313 is evenly distributed on the light guiding main member 31 in an amount equal to the plurality of first light sources 13. Each slit 313 is semi-circular. The light guiding main member 31 is provided with a circular inner opening 315, and the inner opening 315 is provided with an inner edge 3151.

The light guiding auxiliary member 33 includes a light guiding portion 331 and a mounting portion 333 extending from the light guiding portion 331. The light guiding portion 331 is provided with a circular arc edge 3311, and the light guiding portion 331 is located at the The center of the inner opening 315 is described. The mounting portion 333 is provided with an inner hole 3331.

The outer light reflecting layer 34 has a circular shape for enclosing the outer edge 311 of the light guiding main member 31. The middle light reflecting layer 35 has a circular shape for attaching to the light guiding main member 31. The inner edge 3151 is configured to wrap the outer side of the light guiding assistant 33.

Referring to FIG. 1 to FIG. 3, during assembly, the light guiding main member 31 is placed on the circuit board body 11 such that each of the slits 313 has a first light source 13 and the first light source 13 is located at the slit 313. center of. The light guiding main member 31 is fixed on the circuit board body 11 by bonding. The outer reflective layer 34 is wrapped around the outer edge 311 of the light guiding main member 31, the middle reflective layer 35 is attached to the inner edge 3151 of the light guiding main member 31, and the inner reflective layer 36 is wrapped. The outer side of the light guiding assistant 33 is then placed in the inner opening 315 to receive the two second light sources 15 in the inner hole 3331. The member 33 is fixed to the circuit board body 11 by adhesive bonding, and a side of the inner light reflecting layer 36 surrounding the mounting portion 333 contacts the middle light reflecting layer 35.

The plurality of first light sources 13 emit light and introduce light into the light guiding main member 31 through the edges of the plurality of slits 313 to uniformly emit the light guiding main member 31, and the two second light sources 15 Light is introduced into the light guiding assistant 33 through the edge of the inner hole 3331 to uniformly light the light guiding main member 31.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧ boards

11‧‧‧Board body

13‧‧‧First light source

15‧‧‧second light source

30‧‧‧Light guiding structure

31‧‧‧Light guide main parts

311‧‧‧ outer edge

313‧‧‧Incision

Opening within 315‧‧

3151‧‧‧ inner edge

33‧‧‧Light guides

331‧‧‧Light Guide

3311‧‧‧Arc edge

333‧‧‧Installation Department

3331‧‧‧ hole

no

10‧‧‧ boards

11‧‧‧Board body

13‧‧‧First light source

15‧‧‧second light source

30‧‧‧Light guiding structure

31‧‧‧Light guide main parts

33‧‧‧Light guides

Claims (10)

A light guiding device comprising a circuit board and a light guiding structure, wherein the circuit board comprises a circuit board body and a plurality of first light sources mounted on the circuit board body, the plurality of a light source is evenly arranged on the circuit board body to form a ring, the light guiding structure comprises a light guiding main component, the light guiding main component is provided with a plurality of slits, and the light guiding main component is placed on The circuit board body is configured such that each of the cutouts receives a first light source, and the plurality of first light sources emit light to introduce light into the light guiding main member through the edges of the plurality of slits to enable the light guiding The main part is illuminated. The light guiding device of claim 1, wherein the light guiding main member has an annular shape, and the light guiding main member is provided with a circular outer edge, and the plurality of slits extend inward from the outer edge form. The light guiding device of claim 2, wherein the slit is semicircular. The light guiding device of claim 2, wherein the light guiding body is provided with an inner opening, the light guiding device further comprises a light guiding auxiliary component located in the inner opening, the circuit board further comprising a a second light source in the inner opening, the second light source emitting light to introduce light into the light guiding auxiliary component to cause the light guiding auxiliary component to emit light. The light guiding device of claim 4, wherein the light guiding auxiliary member is provided with an inner hole, and the second light source is located in the inner hole. The light guiding device of claim 5, wherein the light guiding structure further comprises an inner light reflecting layer, the inner light reflecting layer enclosing an outer edge of the light guiding auxiliary member. The light guiding device of claim 5, wherein the light guiding auxiliary component comprises a mounting portion and a light guiding portion extending from the mounting portion, the inner hole is disposed on the mounting portion, and the light guiding The portion is located at the center of the inner opening. The light guiding device of claim 4, wherein the light guiding structure further comprises an outer light reflecting layer, the outer light reflecting layer wrapping an outer edge of the light guiding main member. The light guiding device of claim 2, wherein the light guiding structure further comprises a middle reflective layer, the middle reflective layer shielding an edge of the inner opening. The light guiding device of claim 1, wherein the light guiding main member is parallel to the circuit board body.