CN220709394U - Light guide device - Google Patents
Light guide device Download PDFInfo
- Publication number
- CN220709394U CN220709394U CN202322076616.4U CN202322076616U CN220709394U CN 220709394 U CN220709394 U CN 220709394U CN 202322076616 U CN202322076616 U CN 202322076616U CN 220709394 U CN220709394 U CN 220709394U
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- light
- light emitting
- base
- homogenizing plate
- pieces
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- 238000009434 installation Methods 0.000 claims abstract description 22
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Abstract
The utility model provides a light guide device, which comprises a base, a light homogenizing plate and a plurality of light emitting pieces, wherein the base comprises a first installation part for arranging the light emitting pieces, the light emitting pieces are arranged at intervals in the longitudinal direction and the transverse direction of the first installation part, the light homogenizing plate is arranged on the base and is positioned above the light emitting pieces, and the light emitting pieces irradiate on the light homogenizing plate along the direction from the light emitting pieces to the light homogenizing plate so as to form a surface light source on one side of the light homogenizing plate, which is away from the light emitting pieces. Each light emitting piece forms a linear light source, and the plurality of light emitting pieces are arranged in a staggered manner, so that a uniform area light source is formed by utilizing the plurality of linear light sources, and meanwhile, the uniformity of the formed area light source is further improved by the light homogenizing plate; on the other hand, the light homogenizing plate is arranged above the plurality of luminous pieces, so that the light irradiation path of the luminous pieces is straight, and the light generated by the luminous pieces is directly transmitted through the light homogenizing plate, thereby being beneficial to improving the brightness of the formed surface light source.
Description
Technical Field
The utility model relates to the technical field of imaging equipment, in particular to a light guide device.
Background
The existing side-illuminated product needs to use a light guide plate to change a linear light source into a surface light source, and due to the side light guide principle of the light guide plate, namely, a certain angle is formed between the linear light source and the light guide plate, the linear light source can be refracted for many times, so that the light emission of the surface light source is not uniform enough, the side light guide also enables the settable quantity of lamps to be limited, and the overall surface luminous intensity can be weak. In addition, the existing light guide plate structure is also complex, and has high requirements on design and processing.
Disclosure of Invention
The utility model aims to overcome the defects that side light guide can cause insufficient uniform light emission and weaker light emission intensity of a surface light source in the prior art.
The utility model solves the technical problems by the following technical scheme:
the utility model provides a light guide device, includes base, even light board and a plurality of light-emitting piece, the base is including being used for setting up the first installation department of light-emitting piece, a plurality of the light-emitting piece is followed the longitudinal and horizontal interval arrangement of first installation department, even light board install in the base and be located a plurality of the top of light-emitting piece, a plurality of the light-emitting piece is followed the light-emitting piece extremely even light board's direction shine in even light board, in order to even light board deviates from one side of light-emitting piece forms the area light source.
In the scheme, the plurality of light emitting pieces are arranged in a staggered manner at the first mounting part of the base, and the light homogenizing plate is arranged above the light emitting pieces, so that on one hand, each light emitting piece forms a linear light source, the plurality of light emitting pieces are arranged in a staggered manner, a uniform surface light source is formed by utilizing the plurality of linear light sources, for example, the uniformity of the surface light source can be improved by adjusting the intervals among the plurality of light emitting pieces, and meanwhile, the uniformity of the formed surface light source is further improved by the light homogenizing plate; on the other hand, the light homogenizing plate is arranged above the plurality of luminous pieces, so that the light irradiation path of the luminous pieces is straight, and the light generated by the luminous pieces is directly transmitted through the light homogenizing plate, thereby being beneficial to improving the brightness of the formed surface light source.
Preferably, the base includes a second mounting portion, the light homogenizing plate is mounted on the base through the second mounting portion, and the second mounting portion is configured to be capable of adjusting a distance between the light homogenizing plate and the light emitting member.
In this scheme, adopt above-mentioned structural style, can change the distance between dodging board and the light-emitting piece through actual user demand, actual light-emitting piece quantity and actual light-emitting piece interval, and then adjust the homogeneity degree of produced area source, also be favorable to further improving the homogeneity of area source.
Preferably, the second mounting portion has at least two abutting surfaces, at least two abutting surfaces are oppositely arranged and are used for abutting against the bottom surface of the light homogenizing plate, and the abutting surfaces are in a step shape.
In this scheme, through setting up the butt face into the echelonment to every ladder face will form the difference in height, and when even light board and the ladder face butt of difference, the distance between even light board and the light-emitting part will also be different, has just realized that the distance between even light board and the light-emitting part is adjustable.
Preferably, the second mounting portion includes a plurality of baffles, along the luminous direction of the luminous member, a plurality of baffles are arranged at intervals, along the direction perpendicular to the luminous direction of the luminous member, a plurality of baffles are arranged in pairs, and the baffles are used for abutting the bottom surface of the light homogenizing plate.
In this scheme, through setting up a plurality of baffles along the luminous direction interval of luminous spare to when even light board was placed at different baffles, the distance between even light board and the luminous spare also will be different, just also realized that the distance between even light board and the luminous spare is adjustable.
Preferably, the base comprises a groove, the groove extends from an outer wall of the base to the inside of the base, the bottom of the groove is provided with the first mounting part, and the wall of the groove is provided with the second mounting part.
In this scheme, through set up the recess at the base, utilized the structural feature of recess to form first installation department and second installation department ingeniously for first installation department and second installation department integrate in the recess, on the other hand with the setting of luminous piece in the recess, be favorable to guaranteeing light guide device's surface smoothness.
Preferably, the light guide device further comprises an eye protection plate detachably mounted on the base, and the eye protection plate covers the light homogenizing plate.
In this scheme, eyeshield board has improved the fail safe nature when the light guide device uses.
Preferably, the eye protection plate is bent to form a first part and a second part, the second part is mounted on the base, and the first part is covered on the light homogenizing plate.
In this scheme, set up the first part and the second part that are mutual angle with the eyeshield board, be favorable to improving the installation form variety of eyeshield board, for example the second part can be installed in the side of base, and the first part still can be located the top of even light board this moment, just also can rationally utilize the optional position of base to install the eyeshield board, and need not restrict the fixed position of eyeshield board and base.
Preferably, the light guide further comprises a fastener passing through the second portion and threadably engaging the base to secure the second portion to the base.
Preferably, along the direction of keeping away from the base, the fastener includes interconnect's first fastening portion and second fastening portion, the cross sectional dimension of second fastening portion is greater than the cross sectional dimension of first fastening portion, first fastening portion with base threaded connection, the second part be equipped with the draw-in groove of the size looks adaptation of first fastening portion, the second part is passed through the draw-in groove card is located first fastening portion.
In this scheme, when the second part needs to be fixed in the base, locate first fastening portion with the second part direct through draw-in groove card, rethread second fastening portion is to first fastening portion application effort for first fastening portion rotates and gets into in the base, until the both sides face of second part laminating respectively in base and second fastening portion, represent that the second part is fixed to be accomplished. Through setting up draw-in groove and first fastening portion cooperation at the second part, be favorable to improving the convenience of installing and removing of eyeshield board, and then improve the speed of installing and removing.
Preferably, the first mounting portion is a PCB board, and/or the light emitting member is a light emitting diode.
In this scheme, adopt PCB board and emitting diode to form the light guide plate, on the one hand, the PCB board can realize laying the light-emitting piece in a large scale, is favorable to increasing the quantity of light-emitting piece, also is favorable to improving the luminance of produced area light source, and the PCB board is also more convenient for change the interval between the light-emitting piece that shines, on the other hand, compare in the light guide plate among the prior art, the cooperation of PCB board and emitting diode is lower to design and processing requirement, is favorable to the reduce cost.
The utility model has the positive progress effects that:
according to the utility model, the plurality of light emitting pieces are arranged at the first mounting part of the base in a staggered manner, and the light homogenizing plate is arranged above the light emitting pieces, so that on one hand, each light emitting piece forms a linear light source, the plurality of light emitting pieces are arranged at intervals, a uniform surface light source is formed by utilizing the plurality of linear light sources, for example, the uniformity of the surface light source can be improved by adjusting the intervals among the plurality of light emitting pieces, and meanwhile, the uniformity of the formed surface light source is further improved by the light homogenizing plate; on the other hand, the light homogenizing plate is arranged above the plurality of luminous pieces, so that the light irradiation path of the luminous pieces is straight, and the light generated by the luminous pieces is directly transmitted through the light homogenizing plate, thereby being beneficial to improving the brightness of the formed surface light source.
Drawings
Fig. 1 is a schematic structural diagram of a light guiding device according to a preferred embodiment of the present utility model.
Fig. 2 is a schematic diagram of another structure of the light guiding device according to the preferred embodiment of the utility model, in which the light-homogenizing plate is omitted.
Fig. 3 is a schematic cross-sectional view of a light guiding device according to a preferred embodiment of the utility model.
Fig. 4 is a schematic view of a partial enlarged structure of a light guiding device according to a preferred embodiment of the utility model.
Description of the reference numerals
Light guide device 100
Base 1
First mounting portion 11
Second mounting portion 12
Abutment surface 121
Groove 13
Dodging plate 2
Luminous element 3
Fastener 5
First fastening portion 51
Second fastening portion 52
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
As shown in fig. 1-4, the present embodiment discloses a light guiding device 100, which includes a base 1, a light homogenizing plate 2 and a plurality of light emitting members 3, wherein the base 1 includes a first mounting portion 11 for setting the light emitting members 3, the plurality of light emitting members 3 are arranged along a longitudinal direction and a transverse direction of the first mounting portion 11 at intervals, the light homogenizing plate 2 is mounted on the base 1 and is located above the plurality of light emitting members 3, and the plurality of light emitting members 3 irradiate on the light homogenizing plate 2 along a direction from the light emitting members 3 to the light homogenizing plate 2 so as to form a surface light source on a side of the light homogenizing plate 2 facing away from the light emitting members 3.
By arranging the plurality of light emitting pieces 3 which are arranged in a staggered manner at the first mounting part 11 of the base 1 and arranging the light homogenizing plate 2 above the light emitting pieces 3, on one hand, each light emitting piece 3 forms a linear light source, the plurality of light emitting pieces 3 are arranged in a staggered manner, so that a uniform surface light source is formed by utilizing the plurality of linear light sources, for example, the uniformity of the surface light source can be improved by adjusting the intervals among the plurality of light emitting pieces 3, and meanwhile, the uniformity of the formed surface light source is further improved by the light homogenizing plate 2; on the other hand, the light homogenizing plate 2 is arranged above the plurality of light emitting elements 3, so that the light irradiation path of the light emitting elements 3 is a straight line, and the light generated by the light emitting elements 3 is directly transmitted through the light homogenizing plate 2, thereby being beneficial to improving the brightness of the formed surface light source.
In this embodiment, the first mounting portion 11 is a PCB board, and the light emitting member 3 is a light emitting diode. The PCB and the light emitting diode are adopted to form the light guide plate, on one hand, the PCB can realize that the light emitting pieces 3 are laid on a large area, the quantity of the light emitting pieces 3 is increased, the brightness of the generated surface light source is improved, the PCB is more convenient to change the distance between the light emitting pieces 3, and on the other hand, compared with the light guide plate in the prior art, the matching of the PCB and the light emitting diode has lower design and processing requirements, and the cost is reduced. In other embodiments, the first mounting portion 11 and the light emitting member 3 may be other forms, for example, the light emitting member 3 may be a self-charged bulb, and the first mounting portion 11 may be a common plate.
The base 1 includes second installation department 12, and even light board 2 passes through second installation department 12 to be installed in base 1, and second installation department 12 sets up to can adjust the distance between even light board 2 and the light-emitting part 3 to can change the distance between even light board 2 and the light-emitting part 3 through actual user demand, actual light-emitting part 3 quantity and actual light-emitting part 3 interval, and then adjust the homogeneity degree of produced area light source, also be favorable to further improving the homogeneity of area light source.
In one embodiment, as shown in fig. 3, the second mounting portion 12 has at least two abutment surfaces 121, where the at least two abutment surfaces 121 are disposed opposite to each other and are abutted by the bottom surface of the light equalizing plate 2, and the abutment surfaces 121 are stepped. By arranging the abutment surface 121 in a stepped shape, a height difference will be formed for each stepped surface, and when the light homogenizing plate 2 abuts against different stepped surfaces, the distance between the light homogenizing plate 2 and the light emitting member 3 will also be different, so that the distance between the light homogenizing plate 2 and the light emitting member 3 can be adjusted.
In another embodiment, the second mounting portion 12 includes a plurality of baffles, which are disposed at intervals along the light emitting direction of the light emitting member 3, and are disposed in pairs along the direction perpendicular to the light emitting direction of the light emitting member 3, and the baffles are abutted by the bottom surface of the light homogenizing plate 2. By arranging a plurality of baffles at intervals along the light emitting direction of the light emitting piece 3, when the light homogenizing plate 2 is placed on different baffles, the distance between the light homogenizing plate 2 and the light emitting piece 3 will also be different, and the distance between the light homogenizing plate 2 and the light emitting piece 3 is adjustable.
In other embodiments, the degree of uniformity of the final light emitting surface can also be adjusted by varying the thickness of the light distribution plate 2.
The base 1 includes a groove 13, the groove 13 extends from an outer wall of the base 1 toward the inside of the base 1, a groove bottom of the groove 13 is provided with a first mounting portion 11, and a groove wall of the groove 13 is provided with a second mounting portion 12. Through setting up recess 13 at base 1, utilized the structural feature of recess 13 to form first installation department 11 and second installation department 12 ingeniously for first installation department 11 and second installation department 12 integrate in recess 13, on the other hand with luminous piece 3 setting up in recess 13, be favorable to guaranteeing the surface smoothness of light guide device 100.
In order to improve the safety and reliability of the light guide device 100 when in use, the light guide device 100 further comprises an eye protection plate detachably mounted on the base 1, and the eye protection plate is covered on the light homogenizing plate 2.
Specifically, the eye protection plate is bent to form a first part and a second part, the second part is arranged on the base 1, and the first part is covered on the light homogenizing plate 2. The first part and the second part which are mutually angled are arranged on the eye protection plate, so that the diversity of installation forms of the eye protection plate is improved, for example, the second part can be arranged on the side edge of the base 1, and the first part can still be positioned above the light homogenizing plate 2, so that the eye protection plate can be installed by reasonably utilizing any position of the base 1 without limiting the fixed position of the eye protection plate and the base 1.
The light guide 100 further comprises a fastener 5, the fastener 5 passing through the second portion and being threadedly coupled to the base 1 to secure the second portion to the base 1. Specifically, as shown in fig. 4, in a direction away from the base 1, the fastener 5 includes a first fastening portion 51 and a second fastening portion 52, the cross-sectional dimension of the second fastening portion 52 is larger than that of the first fastening portion 51, the first fastening portion 51 is in threaded connection with the base 1, the second portion is provided with a clamping groove matched with the dimension of the first fastening portion 51, and the clamping groove extends upward from the bottom surface of the second portion; the second portion is clamped to the first fastening portion 51 through the clamping groove, and the side surface of the second fastening portion 52 facing the first fastening portion 51 is tightly attached to the second portion. That is, when the second portion needs to be fixed to the base 1, the second portion is directly clamped to the first fastening portion 51 through the clamping groove, and then an acting force is applied to the first fastening portion 51 through the second fastening portion 52, so that the first fastening portion 51 rotates into the base 1 until both side surfaces of the second portion are respectively attached to the base 1 and the second fastening portion 52, which represents that the second portion is fixed. By arranging the clamping groove on the second part to be matched with the first fastening part 51, the assembly and disassembly convenience of the eye protection plate is improved, and the assembly and disassembly speed is further improved. The fastener 5 may be a bayonet screw, or may be another type of bolt, screw, or the like.
In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (9)
1. The light guide device is characterized by comprising a base, a light homogenizing plate and a plurality of light emitting pieces, wherein the base comprises a first installation part used for arranging the light emitting pieces, the light emitting pieces are arranged at intervals in the longitudinal direction and the transverse direction of the first installation part, the light homogenizing plate is arranged on the base and is positioned above the light emitting pieces, and the light emitting pieces irradiate on the light homogenizing plate along the direction from the light emitting pieces to the light homogenizing plate so as to form a surface light source on one side of the light homogenizing plate, which is away from the light emitting pieces;
the base comprises a second installation part, the light homogenizing plate is installed on the base through the second installation part, and the second installation part is arranged to be capable of adjusting the distance between the light homogenizing plate and the light emitting piece.
2. The light guide device according to claim 1, wherein the second mounting portion has at least two abutment surfaces, and at least two of the abutment surfaces are disposed opposite to each other and are abutted by the bottom surface of the light distribution plate, and the abutment surfaces are stepped.
3. The light guide device according to claim 1, wherein the second mounting portion includes a plurality of baffles, the plurality of baffles are disposed at intervals along a light emitting direction of the light emitting member, the plurality of baffles are disposed two by two along a direction perpendicular to the light emitting direction of the light emitting member, and the baffles are configured to abut against a bottom surface of the light homogenizing plate.
4. The light guide device according to claim 1, wherein the base includes a groove extending from an outer wall of the base toward an inside of the base, a bottom of the groove is provided with the first mounting portion, and a wall of the groove is provided with the second mounting portion.
5. The light guide device of claim 1, further comprising an eye shield removably mounted to the base, the eye shield covering the light homogenizing plate.
6. The light guide device of claim 5, wherein the eye shield is folded to form a first portion and a second portion, the second portion is mounted to the base, and the first portion is covered on the light homogenizing plate.
7. The light guide of claim 6, further comprising a fastener passing through the second portion and threadably engaging the base to secure the second portion to the base.
8. The light guide device according to claim 7, wherein the fastener includes a first fastening portion and a second fastening portion connected to each other in a direction away from the base, a cross-sectional dimension of the second fastening portion is larger than a cross-sectional dimension of the first fastening portion, the first fastening portion is screwed with the base, the second portion is provided with a clamping groove adapted to a dimension of the first fastening portion, and the second portion is clamped to the first fastening portion through the clamping groove.
9. The light guide device of claim 1, wherein the first mounting portion is a PCB board and/or the light emitting member is a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322076616.4U CN220709394U (en) | 2023-08-03 | 2023-08-03 | Light guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322076616.4U CN220709394U (en) | 2023-08-03 | 2023-08-03 | Light guide device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220709394U true CN220709394U (en) | 2024-04-02 |
Family
ID=90435897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322076616.4U Active CN220709394U (en) | 2023-08-03 | 2023-08-03 | Light guide device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220709394U (en) |
-
2023
- 2023-08-03 CN CN202322076616.4U patent/CN220709394U/en active Active
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