Transformative structures and linear array light sources
By enclosing the reflection space with supporting components and reflective components, and combining the design of light guide components, the problem of reducing the area of LED array light sources is solved, the manufacturing difficulty and cost are reduced, and the luminous efficiency and light utilization rate are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-11-16
- Publication Date
- 2026-03-17
AI Technical Summary
In existing technologies, it is difficult and costly to reduce the area of LED chips to form smaller array light sources, especially in ultraviolet LED linear array applications where there are technical challenges.
The conversion structure consists of a support component, a reflection component, and a light guide component. The light source is placed in the reflection space. Through the design of the reflection and light guide components, the light is reflected in the reflection space and emitted through the light-emitting part. The area of the light-emitting part is smaller than that of the light-inlet part, so as to avoid reducing the area of the light source.
It reduces manufacturing difficulty and cost while maintaining or improving luminous efficiency, and avoids light loss and the impact of ultraviolet rays on external structures.
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Figure CN115681891B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of optical structure technology, and in particular to a conversion structure and a linear array light source. Background Technology
[0002] Conventional LED arrays typically consist of closely packed individual LED devices or chips, and due to the size limitations of these devices and chips, it is difficult to create smaller arrays. However, LED linear arrays, especially ultraviolet (UV) LED linear arrays, have important applications in laser printing, photopolymerization, photodetection, and light processing. For example, laser printers use long-wavelength lasers as their light source, and the dot matrix resolution of photoelectrostatic components is limited. Using short-wavelength devices such as UV micro-LEDs can reduce these technical limitations.
[0003] However, at present, most of the methods used are to reduce the area of LED chips. Since the size of LED chips is small, further reducing the size of LED chips is not only technically difficult, but also greatly increases the cost.
[0004] Therefore, there is an urgent need to provide a conversion structure and a linear array light source to solve the problems existing in the prior art to a certain extent. Summary of the Invention
[0005] The purpose of this invention is to provide a conversion structure and a linear array light source, so as to solve to some extent the problem that reducing the light-emitting area at present requires reducing the area of the light source itself, which makes manufacturing difficult and costly.
[0006] The present invention provides a conversion structure comprising a support member, a reflective component, and a light guide member; the support member and the reflective component enclose a reflective space, a light source is disposed within the reflective space, the reflective component includes a first reflective component and a second reflective component, and the light guide member is located between the first reflective component and the second reflective component; the light guide member includes a light-inlet portion, a light-conducting portion, and a light-outlet portion, the light-inlet portion is located within the reflective space and is correspondingly disposed to the light source, the light-outlet portion is located outside the reflective space, and the area of the light-outlet portion is smaller than the area of the light-inlet portion, and the light-conducting portion is located between the light-inlet portion and the light-outlet portion.
[0007] The supporting member includes a first supporting part and a second supporting part. The horizontal height of the second supporting part is less than that of the first supporting part. One end of the first reflecting member is covered on the first supporting part, and the first reflecting member, the first supporting part, and the second supporting part form an open part. The conductive part of the light guiding member extends out from the open part. One end of the second reflecting member is connected to the second supporting part, and the second reflecting member is arranged parallel to the first reflecting member.
[0008] Specifically, a first carrier groove is formed on the second reflective member. The shape of the first carrier groove is adapted to the conductive part and the light-emitting part of the light guide member, and the area of the first carrier groove is not less than the sum of the areas of the conductive part and the light-emitting part, so that the conductive part and the light-emitting part can be disposed in the first carrier groove.
[0009] Furthermore, a second carrier groove is formed on the first reflective member. The shape of the second carrier groove is adapted to the light guide member. The area of the second carrier groove is not less than the area of the light guide member. The second carrier groove and the first carrier groove form a carrier space corresponding to each other, and the light guide member is enclosed in the carrier space. A hollow part is formed on the first reflective member corresponding to the position of the light emitting part, so as to expose the light emitting part.
[0010] Furthermore, both the first and second carrier grooves are covered with a first reflective layer to allow light to be transmitted within the light guide member.
[0011] The supporting member is covered with a second reflective layer on the wall facing the reflective space to reflect the light emitted by the light source to the light-inlet section.
[0012] Specifically, the dimension of the side of the conductive part that connects with the light-inlet part is larger than the dimension of the side of the conductive part that connects with the light-outlet part, so that the conductive part has a gradually tapering structure.
[0013] Compared with existing technologies, the conversion structure provided by this invention has the following advantages:
[0014] The conversion structure provided by the present invention includes a support member, a reflective component, and a light guide member; the support member and the reflective component enclose a reflective space, a light source is disposed within the reflective space, the reflective component includes a first reflective component and a second reflective component, and the light guide member is located between the first reflective component and the second reflective component; the light guide member includes a light-inlet portion, a light-conducting portion, and a light-outlet portion, the light-inlet portion is located within the reflective space and is disposed corresponding to the light source, the light-outlet portion is located outside the reflective space, and the area of the light-outlet portion is smaller than the area of the light-inlet portion, and the light-conducting portion is located between the light-inlet portion and the light-outlet portion.
[0015] This analysis shows that the supporting member can provide a stable installation position for the first and second reflective members. Correspondingly, the connection between the first and second reflective members and the supporting member can form a reflection space. By placing the light source in the reflection space, the light emitted by the light source can be continuously reflected in the reflection space.
[0016] Since a light guide component is provided between the first reflective component and the second reflective component in this application, and the light guide component includes a light-inlet portion, a light-conducting portion and a light-outlet portion, and the light-inlet portion is located in the reflection space, the light in the reflection space can enter the light guide component through the light-inlet portion, and be directed to the light-outlet portion through the light-conducting portion, and then be emitted through the light-outlet portion.
[0017] Since the area of the light-emitting part in this application is smaller than the area of the light-inlet part, and the light-inlet part is set to the light source, the conversion structure provided by this application can achieve the purpose of reducing the light-emitting area without reducing the area of the large-size light source, thereby reducing the manufacturing difficulty and manufacturing cost of the overall device to a certain extent.
[0018] In addition, the present invention also provides a linear array light source, including multiple light sources and the above-mentioned conversion structure; the multiple light sources are distributed in a linear array, and the conversion structure is configured in a one-to-one correspondence with the light sources.
[0019] In this configuration, two adjacent light sources located in the same row are arranged in a centrally symmetrical manner with respect to the conversion structure, and the light-emitting parts of the two centrally symmetrical conversion structures are located on the same straight line.
[0020] Specifically, the linear array light source provided by the present invention further includes a substrate, wherein both the light source and the conversion structure are disposed on the substrate.
[0021] The linear array light source formed by the conversion structure provided in this application does not require changing the size of the original large-size light source. Furthermore, since the light guide component can conduct the light emitted by the light source, the light-emitting area is reduced without changing the luminous efficiency and the size of the light source, thereby greatly reducing the manufacturing cost and manufacturing difficulty. Attached Figure Description
[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the transformation structure from a first perspective provided in an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the transformation structure from a second perspective provided in an embodiment of the present invention;
[0025] Figure 3 This is a schematic diagram of the supporting member on the substrate in the conversion structure provided in an embodiment of the present invention;
[0026] Figure 4 This is an exploded structural diagram of the reflective component and light guide component in the conversion structure provided in the embodiment of the present invention from a first-view perspective;
[0027] Figure 5 This is an exploded structural diagram of the reflective component and light guide component in the conversion structure provided in the embodiment of the present invention from a second perspective;
[0028] Figure 6 This is a schematic diagram of the layout of a linear array light source provided in an embodiment of the present invention.
[0029] In the figure: 1-Supporting member; 101-First support part; 102-Second support part; 103-Notch; 104-Reflection space; 2-First reflective member; 201-Second bearing groove; 2011-Clearing part; 3-Second reflective member; 301-First bearing groove; 4-Light guide member; 401-Light entering part; 402-Conducting part; 403-Light emitting part; 5-Light source; 6-Substrate. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0031] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0033] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0034] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0035] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.
[0036] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0037] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0038] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0039] like Figure 1 Combination Figure 2 As shown, the present invention provides a conversion structure, including a support member 1, a reflective component, and a light guide member 4; the support member 1 and the reflective component enclose a reflective space 104, a light source 5 is disposed within the reflective space 104, the reflective component includes a first reflective component 2 and a second reflective component 3, and the light guide member 4 is located between the first reflective component 2 and the second reflective component 3; the light guide member 4 includes a light-entry part 401, a conduction part 402, and a light-exit part 403, the light-entry part 401 is located within the reflective space 104 and is disposed corresponding to the light source 5, the light-exit part 403 is located outside the reflective space 104, and the area of the light-exit part 403 is smaller than the area of the light-entry part 401, and the conduction part 402 is located between the light-entry part 401 and the light-exit part 403.
[0040] Compared with existing technologies, the conversion structure provided by this invention has the following advantages:
[0041] The conversion structure provided by the present invention can provide a stable installation position for the first reflective member 2 and the second reflective member 3 through the support member 1. Correspondingly, the connection between the first reflective member 2 and the second reflective member 3 and the support member 1 can form a reflection space 104. By placing the light source 5 in the reflection space 104, the light emitted by the light source 5 can be continuously reflected in the reflection space 104.
[0042] Since a light guide member 4 is provided between the first reflective member 2 and the second reflective member 3 in this application, and the light guide member 4 includes a light-entry part 401, a conduction part 402 and a light-exit part 403, and the light-entry part 401 is located in the reflection space 104, the light in the reflection space 104 can enter the light guide member 4 through the light-entry part 401, and be directed to the light-exit part 403 through the conduction part 402, and then be emitted through the light-exit part 403.
[0043] Since the area of the light-emitting part 403 in this application is smaller than the area of the light-inlet part 401, and the light-inlet part 401 is provided for the light source 5, the conversion structure provided in this application can achieve the purpose of reducing the light-emitting area without reducing the area of the large-size light source 5, thereby reducing the manufacturing difficulty and manufacturing cost of the overall device to a certain extent.
[0044] It is understood that the light guide member 4 in this application is a light guide plate, which can absorb the light emitted by the light source 5 and emit it through the corresponding light emitting part 403. In this application, the surfaces of the first reflective member 2 and the second reflective member 3 that are in contact with the light guide member 4 can reflect light, thereby reflecting the light emitted from the side of the light guide member 4 back into the light guide member 4. This can, to a certain extent, avoid the loss of light in the reflection space 104, which would lead to a decrease in light emission efficiency and light emission intensity.
[0045] Accordingly, in this application, since the support member 1, together with the first reflective member 2 and the second reflective member 3, forms a reflective space 104, one side of the support member 1 corresponding to the reflective space 104 is a reflective surface, which can also reflect the light emitted by the light source 5, so that the light emitted by the light source 5 can ultimately converge into the light guide member 4, thereby further avoiding light loss.
[0046] Furthermore, when the light source 5 is an ultraviolet light source 5, since ultraviolet rays may have a radiation effect on other structures, by placing the light source 5 in the enclosed reflection space 104, not only can the loss of light be reduced, but the impact of ultraviolet rays on external structures can also be reduced to a certain extent.
[0047] It should be noted that the supporting member 1, the first reflecting member 2 and the second reflecting member 3 mentioned above in this application can all be plate-shaped structures with reflective capabilities, such as mirrors, and can also be metal plate-shaped materials with good reflective capabilities. Considering the overall manufacturing cost, ordinary plates can be used, and reflective materials such as dielectric films, aluminum and silver can be attached to the corresponding surfaces, so as to achieve the purpose of reflecting light within the light reflection space 104 and ultimately allowing all the light to enter the light guide member 4.
[0048] Optionally, such as Figures 1-3 As shown, the support member 1 in this application includes a first support portion 101 and a second support portion 102. The horizontal height of the second support portion 102 is less than the horizontal height of the first support portion 101. One end of the first reflective member 2 is covered on the first support portion 101, and the first reflective member 2, the first support portion 101, and the second support portion 102 form an open portion. The conductive portion 402 of the light guide member 4 extends out from the open portion. One end of the second reflective member 3 is connected to the second support portion 102, and the second reflective member 3 is arranged parallel to the first reflective member 2.
[0049] This application enables the overall support member 1 to form a notch 103 at the corresponding position of the second support member 102 by making the horizontal height of the second support member 102 lower than the horizontal height of the first support member 101. As a result, after the first reflective member 2 is connected to the first support member 101, an open portion can be formed, providing a basis for the extension of the light guide member 4 and the installation of the second reflective member 3.
[0050] It is understandable that, such as Figure 3 As shown, since the light source 5 is usually arranged on a flat substrate 6, such as a PCB board or other semiconductor board, and there are other structural components on the board, in order to avoid the conversion structure provided in this application from occupying too much space on the board and affecting other structures, the support member 1 in this application extends vertically, and the first reflective member 2 and the second reflective member 3 connected to the support member 1 are both perpendicular to the support member 1 and extend horizontally, so that the light guide member 4 arranged between the first reflective member 2 and the second reflective member 3 extends horizontally. This can make the setting of the conversion structure more regular and occupy less space, and can also reduce the manufacturing difficulty and manufacturing cost of the conversion structure.
[0051] It should be noted that the support member 1 in this application is not limited to the rectangular hollow structure shown in the figure, but can also be a hollow cylindrical structure of cylinder or frustum. In this application, the support member 1 can be connected to the substrate 6 by bonding or welding, and can also be detachably connected to the substrate 6 by snap-fit. When the light source 5 is damaged and needs to be replaced after prolonged use, the support member 1 can be separated from the substrate 6, thereby enabling the separation of the overall conversion structure from the substrate 6, and facilitating the repair or replacement of the light source 5.
[0052] Accordingly, in this application, the first reflective component 2 and the second reflective component 3 can be connected to the support component 1 by bonding or welding. The reflective component and the support component 1 can also be integrally formed. Alternatively, the first reflective component 2 can be detachably connected to the support component 1 and the second reflective component 3 by snap-fit. Thus, when it is necessary to replace the light guide component 4, the light guide component 4 can be exposed by disassembling the first reflective component 2, thereby enabling the replacement of the light guide component 4.
[0053] To better support the light guide component 4 and prevent light transmitted within the light guide component 4 from leaking out at the first reflective component 2 and the second reflective component 3, preferably, as follows: Figure 4As shown, in this application, a first carrier groove 301 is formed on the second reflective member 3. The shape of the first carrier groove 301 is adapted to the conduction part 402 and the light emission part 403 of the light guide member 4, and the area of the first carrier groove 301 is not less than the sum of the areas of the conduction part 402 and the light emission part 403, so that the conduction part 402 and the light emission part 403 can be disposed in the first carrier groove 301.
[0054] Since the second emitting component is located below the light guide component 4, it mainly serves to support the light guide component 4. Furthermore, since the light-inlet portion 401 of the light guide component 4 is located within the reflection space 104 and cannot be blocked, the shape of the second reflecting component 3 in this application is the same as the shape formed by the light-conducting portion 402 and the light-emitting portion 403 of the light guide component 4, thereby reducing space occupation and material consumption to a certain extent.
[0055] The first support groove 301 formed on the second reflective member 3 allows the conductive part 402 and the light-emitting part 403 of the light guide member 4 to be located within the first support groove 301. Thus, the edge of the light guide member 4 can be blocked by the edge of the first support groove 301, so that the light in the light guide member 4 can only be emitted from the light-emitting part 403, avoiding light leakage and ensuring light emission efficiency to a certain extent.
[0056] To further prevent light leakage from the edge of the light-inlet section 401, such as Figure 5 As shown, in this application, a second carrier groove 201 is formed on the first reflective member 2. The shape of the second carrier groove 201 is adapted to the light guide member 4. The area of the second carrier groove 201 is not less than the area of the light guide member 4. The second carrier groove 201 and the first carrier groove 301 correspond to form a carrier space, and the light guide member 4 is enclosed in the carrier space. A hollow part 2011 is formed on the first reflective member 2 at the position corresponding to the light emitting part 403, so as to expose the light emitting part 403.
[0057] Since the first reflective member 2 is placed on top of the light guide member 4, its shape is compatible with the overall shape of the light guide member 4. Furthermore, the second carrier groove 201 formed on the first reflective member 2 can cooperate with the first carrier groove 301 to form a carrier space. The light guide member 4 is placed in the carrier space, which can avoid the problem of light leakage from the side of the light guide member 4 to a certain extent. This ensures both light output efficiency and stable placement of the light guide member 4.
[0058] The hollow portion 2011 formed by the first reflective member 2 at the position corresponding to the light-emitting part 403 can expose the light-emitting part 403, thereby forming the required light-emitting area without changing the size of the light source 5 or reducing the light-emitting efficiency.
[0059] In practical applications, the first carrier groove 301 and the second carrier groove 201 in this application are both covered with a first reflective layer so that light can be transmitted in the light guide member 4. The first reflective layer in this application is a dielectric film, aluminum or silver or other materials attached to the side of the first reflective member 2 and the second reflective member 3 facing the light guide member 4.
[0060] Accordingly, in this application, the support member 1 is covered with a second reflective layer on the wall surface facing the reflection space 104 to reflect the light emitted by the light source 5 to the light-receiving part 401. The second reflective layer in this application is the same as the first reflective layer, and will not be described again here.
[0061] like Figure 4 Combination Figure 5 As shown, in this application, the dimension of the side of the conductive part 402 that is connected to the light-inlet part 401 is larger than the dimension of the side of the conductive part 402 that is connected to the light-outlet part 403, so that the conductive part 402 has a gradually tapering structure.
[0062] Preferably, such as Figure 2 As shown, the conductive part 402 in this application is a right trapezoid, which can make the overall arrangement of the linear array light source 5 more regular, thereby saving space to a certain extent.
[0063] The conductive part 402 in this application can also be other shapes, such as a regular shape like an isosceles trapezoid, or even an irregular shape. It is only necessary to make the shapes of the first reflective member 2 and the second reflective member 3 correspond to the light guide member 4. The conductive part 402 can conduct the light absorbed by the light-inlet part 401 to the light-outlet part 403, and the area of the light-outlet part 403 is smaller than the area of the light-inlet part 401.
[0064] In addition, such as Figure 6 As shown, the present invention also provides a linear array light source 5, including multiple light sources 5 and the above-mentioned conversion structure; the multiple light sources 5 are distributed in a linear array, and the conversion structure is set in a one-to-one correspondence with the light sources 5.
[0065] The linear array light source 5 formed by the conversion structure provided in this application does not need to change the size of the original large-size light source 5. Furthermore, since the light guide member 4 can conduct the light emitted by the light source 5, the light-emitting area is reduced without changing the luminous efficiency and the size of the light source 5, thereby greatly reducing the manufacturing cost and manufacturing difficulty.
[0066] It is understandable that, such as Figure 6 As shown, in this application, the conversion structures of two adjacent light sources 5 located in the same row are arranged in a centrally symmetrical manner, and the light-emitting parts 403 of the two centrally symmetrical conversion structures are located on the same straight line.
[0067] Since it is necessary to form a linear array light source 5, by setting the conversion structures corresponding to two adjacent light sources 5 in a centrally symmetrical manner, it is possible to place the two light-emitting parts 403 on the same straight line within a limited space, thereby forming a linear array light source 5.
[0068] It is understandable that in this application Figure 6 The diagram shown is only a schematic of a single linear array light source 5. In actual applications, multiple arrays of light sources 5 may exist as needed, and correspondingly, multiple arrays of light-emitting units 403 may be formed to create an array of light sources 5.
[0069] like Figure 3 As shown, the linear array light source 5 provided by the present invention also includes a substrate 6, and the light source 5 and the conversion structure are both disposed on the substrate 6.
[0070] The substrate 6 in this application can be the aforementioned PCB printed circuit board, or it can be a common semiconductor material board, as long as the side where the light source 5 is set is a flat plane.
[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A conversion structure, characterized by, The support member, the reflection assembly, and the light guide member are included. The support member and the reflection assembly enclose a reflection space, and a light source is arranged in the reflection space. The light guide member includes a light inlet portion, a light transmission portion, and a light outlet portion. The support member includes a first support portion and a second support portion. The second support portion has a smaller height than the first support portion. One end of the first reflection member is covered by the first support portion.
2. The conversion structure of claim 1, wherein One end of the second reflection member is connected to the second support portion.
3. The conversion structure of claim 2, wherein, The size of the side of the light transmission portion that is connected to the light inlet portion is greater than the size of the side of the light transmission portion that is connected to the light outlet portion. The first reflection member has a second bearing groove.
4. The conversion structure of claim 3, wherein The second bearing groove is adapted to the light guide member.
5. The conversion structure of claim 1, wherein The second bearing groove has an area that is not less than the area of the light guide member.
6. A linear array light source characterized by, The first reflection member has a hollow portion. The first bearing groove and the second bearing groove have a first reflection layer.
7. The linear array light source of claim 6, wherein, The support member has a second reflection layer.
8. The linear array light source of claim 6, wherein, The light source and the conversion structure are arranged on the substrate. The light source and the conversion structure are arranged on the substrate.
Citation Information
Patent Citations
Local dimming backlight apparatus
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