CN210325062U

CN210325062U - Light guide device

Info

Publication number: CN210325062U
Application number: CN201921728565.6U
Authority: CN
Inventors: 郭志伟; 袁兆新; 黄祥纹; 蔡成炜
Original assignee: Wistron Corp
Current assignee: Wistron Corp
Priority date: 2019-10-01
Filing date: 2019-10-15
Publication date: 2020-04-14
Anticipated expiration: 2029-10-15
Also published as: TWM592086U

Abstract

A light guide device. The light guide device comprises a first cover part, a light emitting element and a light conducting element; the first covering part is provided with an icon made of a light-transmitting material; the light emitting element is used for outputting light; the light-conducting element is provided with a first section and a second section which are adjacent, the light-conducting element forms a U-shaped structure so that the first section is overlapped with the second section, and the light passes through the first section and the second section to be transmitted to the icon to achieve an illumination effect. The utility model has extremely thin structure thickness, and is suitable for the computer equipment panel with ultra-thin characteristic; even if the light-emitting element is dislocated from the icon, as long as the size of the light-conducting element is larger than or equal to the size of the icon, the light-conducting element can still uniformly project the light of the light-emitting element to the icon.

Description

Light guide device

Technical Field

The utility model provides a light guide device, in particular to light guide device that even light emitting component and icon dislocation also can evenly throw light to whole icons.

Background

With the progress of science and technology, a screen end or a host end of computer equipment provides icon adjusting devices for adjusting relevant parameters such as brightness, contrast, saturation and the like, and each icon device is matched with a luminous icon to mark the function of the icon device. The luminous icon is provided with a hole on the front panel of the screen end or the host end, and a luminous unit is arranged in the hole to provide illumination. In a specific structural design, the light-emitting unit cannot be placed under the broken hole, and light of the light-emitting unit needs to be uniformly projected to the broken hole by matching with a light guide function of the light guide column, so that the uniform brightness of the light-emitting icon is ensured. However, the light guide pillar is manufactured by plastic injection molding, and has a basic limitation on the thickness of the molded product. If the screen end or the host end is designed to be thin, the gap between the front panel and the light-emitting unit is smaller than the thickness of the basic molding formed by plastic injection molding, which means that the light guide column can not be used as a solution for the screen end or the host end with the ultrathin panel. How to design a novel light guide module capable of uniformly projecting the light of the light emitting unit to the staggered hole is one of the development targets of the related mechanism design industry.

Therefore, it is desirable to provide a light guide device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a light guide device which can evenly project light to all icons even if the light emitting element and the icons are staggered, so as to solve the problem.

The utility model discloses a light guide device, which comprises a first covering part, a light emitting element and a light conducting element; the first covering part is provided with an icon made of a light-transmitting material; the light emitting element is used for outputting light; the light-conducting element is provided with a first section and a second section which are adjacent, the light-conducting element forms a U-shaped structure so that the first section is overlapped with the second section, and the light passes through the first section and the second section to be transmitted to the icon to achieve an illumination effect. The light guide device further comprises a second covering part and the first covering part which are respectively arranged on two opposite surfaces of the light conduction element. The side end portion of the second covering member overlaps the icon, and the light emitting element is located beside the side end.

The claims of the present invention also disclose that the light is reflected back and forth in the reflective space between the first section and the second section for illuminating the icon. The first section and the second section overlap each other with a gap.

The claims of the present invention also disclose that the light conducting element has opposite first and second ends, the first end being joined to the second end by a joint to form a U-shaped structure. The light conduction element forms a reflection space between the first section and the second section by using the support of the joint.

The claims of the present invention also disclose that the illumination range of the light emitting element partially overlaps the icon, and the light conducting element is used to adjust the illumination range to completely cover the icon. The light-transmitting element may be a retroreflective sheeting.

The present invention also discloses a light guide device, which comprises a first covering member, a light emitting element and a light conducting element; the first covering part is provided with an icon made of a light-transmitting material; the luminous elements are alternately positioned at one side of the icon and are used for outputting light; the light conducting element is arranged between the first cover part and the light emitting element, the light conducting element is provided with a first section and a second section which are overlapped, and the light passes through the first section and the second section to be transmitted to the icon to achieve an illumination effect.

The claims of the present invention further disclose that the first section is adjacent to the second section, and the light conducting element bends the intersection of the first section and the second section such that the first section overlaps the second section. The outer edge of the first section is connected with the outer edge of the second section by a joint piece so as to maintain the bending of the light conduction element. Or the first section and the second section are two independent sheets, and the outer edges of the first section and the second section are connected by using a joint.

The utility model discloses a light guide device uses and folds the light conduction component for two-layer or more than two-layer as the light transmission passageway between light emitting component and the icon, replaces the tradition and jets out the shaping preparation with plastics, so has the leaded light post of basic meat thickness. The light conduction element is formed by folding at least two optical reflectors and has extremely thin structural thickness, and the light guide device of the utility model is suitable for a computer equipment panel with ultra-thin characteristic; even if the light-emitting element is dislocated from the icon, as long as the size of the light-conducting element is larger than or equal to the size of the icon, the light-conducting element can still uniformly project the light of the light-emitting element to the icon.

Drawings

Fig. 1 is a schematic diagram of a computer device according to an embodiment of the present invention.

Fig. 2 is a schematic partial structural diagram of a computer device according to an embodiment of the present invention.

Fig. 3 is an exploded view of a light guide device according to an embodiment of the present invention.

Fig. 4 is a sectional view of a light guide device according to an embodiment of the present invention.

Fig. 5 and 6 are schematic views of light-transmitting elements according to different embodiments of the present invention.

Description of the main component symbols:

10 second end of computer device 242

12 host end 26 bump

14 icon 261 side end

16 first section of light guide device 28

18 first cover 30 second section

20 second covering 32 engaging member

22 light emitting element 34 reflective space

24 light transmitting element B ray

241 first end

Detailed Description

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a computer device 10 according to an embodiment of the present invention, and fig. 2 is a partial structural schematic diagram of the computer device 10 according to the embodiment of the present invention. The computer device 10 may be a notebook computer, a desktop computer, a server device, or any type of electronic product. Taking a notebook computer as an example, the computer device 10 may set a plurality of icons 14, such as an on/off icon, a volume adjustment icon, and a brightness adjustment icon, on the host side 12 (or screen side). The computer device 10 illuminates the icon 14 with the light guide 16, so that the user can visually determine the operation status of the computer device 10.

Referring to fig. 2 to 4, fig. 3 is an exploded view of a light guide device 16 according to an embodiment of the present invention, and fig. 4 is a sectional view of the light guide device 16 according to an embodiment of the present invention. The light guide device 16 may include a first cover 18, a second cover 20, a light emitting element 22, and a light conducting element 24. The first cover 18 may be a faceplate of the host end 12, or a specific component that incorporates a faceplate. The icon 14 on the first covering member 18 is made of a light-transmitting material; for example, a specially shaped hole may be cut in the first covering member 18, and the hole may be filled with a light-transmitting plastic as the icon 14, but the practical application is not limited thereto. The second covering member 20 may be a base of the host end 12 for supporting electronic components such as a motherboard, a hard disk, and a keyboard.

A light emitting element 22 is installed in the second cover member 20 to output light B. If the computer device 10 is designed by a special structure, when the side end 261 of the bump 26 of the second covering member 20 is partially overlapped with the icon 14 of the first covering member 18, the light emitting element 22 is disposed beside the side end 261, and the light B output by the light emitting element 22 is not projected to the icon 14 in front. In addition, the light-conducting element 24 is mounted above the second covering member 20 and the light-emitting element 22 and below the first covering member 18, that is, the first covering member 18 and the second covering member 20 are respectively disposed on two opposite surfaces of the light-conducting element 24. The light-transmitting member 24 is used to uniformly project the light B output from the light-emitting element 22 to the icon 14 of the first covering member 18.

The light-transmitting member 24 of the present invention may be a thin sheet-like member having a reflective function, such as an optical reflective sheet of various types and materials. The light-conducting element 24 has a first section 28 and a second section 30 which are overlapped, and the first section 28 is not directly attached to the second section 30, leaving a gap with the second section 30 to form a reflective space 34. Assuming that the second section 30 is stacked above the first section 28, the first section 28 and the second section 30 respectively face the light emitting device 22 and the first covering member 18, and at this time, the light B output by the light emitting device 22 firstly passes through the first section 28, then is reflected back and forth in the reflective space 34 between the first section 28 and the second section 30, and then passes through the second section 30 to be projected to the icon 14, so as to achieve the illumination effect.

Referring to fig. 5 and 6, fig. 5 and 6 are schematic views of a light-transmitting element 24 according to various embodiments of the present invention. In the embodiment shown in fig. 5, the first section 28 and the second section 30 of the light conducting element 24 are adjacent to each other, and the light conducting element 24 is folded along the boundary between the first section 28 and the second section 30, and the first end 241 of the light conducting element 24 is connected to the second end 242 via the joint 32, i.e. the light conducting element 24 is bent to form a U-shaped structure, so as to maintain the overlapping state of the first section 28 and the second section 30. The support of the joint 32 maintains the stability of the reflective space 34 between the first section 28 and the second section 30.

In the embodiment shown in fig. 6, the first section 28 and the second section 30 may be two separate pieces, and the second section 30 is placed on the first section 28 with a gap. For example, the outer edge of the first section 28 can be connected to the outer edge of the second section 30 by the joint 32, so as to ensure that the first section 28 and the second section 30 are not separated and spaced from each other to maintain a stable reflection space 34. The joint 32 may be a structural member having a specific size, and the thickness of the structural member is the height of the reflecting space 34; alternatively, the bonding member 32 may be an adhesive, and the volume of the adhesive corresponds to the height of the reflective space 34. The embodiments described herein disclose only the light-transmitting member 24 having the two-section overlapping feature, but the practical application is not limited thereto, and for example, the optical reflection sheet may overlap three or more sections with each other to form the light-transmitting member.

The present invention utilizes the reflective space 34 of the light transmitting element 24 to reflect the light B back and forth, thereby enlarging the illumination range of the light emitting element 22. The brightness of the light B is reduced when passing through the first section 28 and the second section 30, but the light B can be reflected back and forth in the reflective space 34 to increase the brightness; the light-transmitting element 24 is designed to be visible to the user as long as the light is directed to the icon 14. Even if the computer device 10 is designed to have a special structure, such that the bump 26 covers the edge of the icon 14, the central optical axis of the light emitting element 22 cannot be aligned with the center of the icon 14, i.e. only a part of the illumination range of the light emitting element 22 overlaps the icon 14, as shown in fig. 4, the utility model discloses still utilize the reflective space 34 of the light transmission element 24 to improve the illumination brightness and expand the illumination range, ensure that the light B can be uniformly dispersed to completely cover each corner of the icon 14 through the guidance of the light transmission element 24.

To sum up, the utility model discloses a light guide device uses and folds the light conduction component that is two-layer or more than two-layer as the light transmission passageway between light emitting component and the icon, replaces the tradition and jets out the shaping preparation with plastics, so has the thick leaded light post of basic meat. The light conduction element is formed by folding at least two optical reflectors and has extremely thin structural thickness, so the light guide device of the utility model is suitable for a computer equipment panel with ultra-thin characteristic; even if the light-emitting element is dislocated from the icon, as long as the size of the light-conducting element is larger than or equal to the size of the icon, the light-conducting element can still uniformly project the light of the light-emitting element to the icon.

Claims

1. A light guide device, comprising:

a first covering member having an icon made of a light-transmitting material;

a light emitting element for outputting a light; and

the light conducting element is provided with a first section and a second section which are adjacent, the light conducting element forms a U-shaped structure so that the first section is overlapped with the second section, and the light passes through the first section and the second section to be transmitted to the icon to achieve an illumination effect.

2. The light guide device of claim 1, wherein the light is reflected back and forth in a reflective space between the first section and the second section to illuminate the icon.

3. The light guide device of claim 1, wherein the first section and the second section overlap each other with a gap.

4. The light guide device of claim 1, wherein the light conductive element has a first end and a second end opposite to each other, and the first end is connected to the second end by a joint to form the U-shaped structure.

5. The light guide device of claim 4, wherein the light conductive element forms a reflective space between the first segment and the second segment by the support of the bonding element.

6. The light guide device of claim 1, wherein an illumination range of the light emitting element partially overlaps the icon, and the light guide element is used to adjust the illumination range to uniformly diffuse to completely cover the icon.

7. A light guide device according to claim 1, further comprising:

a second covering part, which is arranged on two opposite surfaces of the light conduction element with the first covering part, wherein one side end part of the second covering part is overlapped with the icon, and the light emitting element is arranged beside the side end.

8. The light guide device of claim 1, wherein the light transmissive element is a reflective sheet.

9. A light guide device, comprising:

a first covering member having an icon made of a light-transmitting material;

a light emitting element, which is alternately positioned at one side of the icon and is used for outputting a light ray; and

the light conducting element is arranged between the first cover piece and the light emitting element and provided with a first section and a second section which are overlapped, and the light passes through the first section and the second section to be transmitted to the icon to achieve an illumination effect.

10. The light guide device of claim 9, wherein the light is reflected back and forth in a reflective space between the first section and the second section to illuminate the icon.

11. The light guide device of claim 9, wherein the first section and the second section overlap each other with a gap.

12. The light guide device of claim 9, wherein the first section is adjacent to the second section, and the light conductive element bends an intersection of the first section and the second section such that the first section overlaps the second section.

13. The light guide device of claim 12, wherein an outer edge of the first section is connected to an outer edge of the second section by a joint to maintain the bend of the light guide element.

14. The light guide device of claim 9, wherein the first section and the second section are two separate pieces, and the outer edges of the first section and the second section are connected by a joint.

15. A light guide device according to claim 9, further comprising: