Lighting assembly, and lighting device

Abstract

The application provides a lighting assembly and a lighting device, and relates to the technical field of lighting, and the lighting assembly comprises a substrate and a plurality of light emitting units arranged on the first surface of the substrate; among the plurality of light emitting units, a target light emitting unit comprises a light emitting component and a transmission component, the transmission component is used for refracting light emitted by the light emitting component, and the light emitted by the light emitting component is irradiated on a working surface to form a light spot under the refracting action of the transmission component; the center of the position layout of all the target light emitting units is an origin; the projection of the origin on the working surface is a first projection; the light emitted by the light emitting component is offset under the refracting action of the transmission component, and the offset direction is towards the position of the first projection. The application can improve the uniformity of illuminance in the irradiation area of the lighting assembly in the lamp and eliminate glare.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more particularly to a lighting component and a lighting device. Background Technology

[0002] Currently, most lighting fixtures on the market use either direct-lit or light guide plate designs for their lamp heads. Direct-lit structures include... Figure 1 and Figure 2 As shown, the bottom surface of the lamp head housing structure is circular, and multiple light-emitting diodes (LEDs) are mounted on the lamp head housing structure. The LEDs are distributed in a dispersed manner, and a diffuser is used to further diffuse the light, increasing the illumination area. The light guide plate structure is as follows: Figure 3 and Figure 4 As shown, the LED and light source board are mounted on one side. Light emitted from the LED enters the light guide plate and exits from the light-emitting surface. A reflective paper is provided on the bottom surface of the light guide plate to prevent light from escaping from the non-emitting surface. A diffuser is provided on one side of the light-emitting surface to further diffuse the light and increase the illumination area. Based on existing direct-lit and light guide plate lighting components, such as... Figure 5 As shown, the light emitted by the light source is distributed in space in a manner close to the Lambertian pattern, meaning the light distribution of the light source is close to the Lambertian distribution. Simultaneously, the illuminance distribution on the illuminated surface (e.g., a tabletop) after the light source illuminates it is as follows: Figure 6 As shown, from Figure 5 and Figure 6 As can be seen, the illuminance (i.e., light intensity) distributed on the illuminated surface is uneven. The illuminance directly below the lamp head is too high. With the illuminated radius centered on the table directly below the lamp head, the illuminance decreases rapidly, causing discomfort to the user. Furthermore, as... Figure 7 As shown, existing direct-lit and light-guide plate lamp heads provide ample light at large angles, resulting in high brightness and strong light at eye level. This causes intense glare for students and those working at desks, affecting comfort and eye health. Furthermore, based on the relevant provisions in GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps," the desktop illuminance assessment area has been updated from a fan-shaped area to a rectangular area. Traditional optical solutions cannot meet the energy distribution requirements for illuminance uniformity as specified in these regulations. Summary of the Invention

[0003] This invention provides a lighting component and a lighting device to solve the defects of uneven light intensity distribution on a table and strong glare when the user uses the light source in the prior art, thereby improving the uniformity of illuminance in the illumination area of ​​the lighting component in the lamp and eliminating glare.

[0004] This invention provides a lighting assembly, including a substrate and a plurality of light-emitting units disposed on a first surface of the substrate; each target light-emitting unit includes a light-emitting component and a transmission component, the transmission component being used to refract the light emitted by the light-emitting component, the light emitted by the light-emitting component illuminating the working surface under the refraction of the transmission component to form a light spot; the center of the arrangement of all target light-emitting units is the origin; the projection of the origin onto the working surface is the first projection; the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the deflection direction is toward the position of the first projection.

[0005] According to an illumination assembly provided by the present invention, the transmission components of multiple light-emitting units are different.

[0006] According to the lighting component provided by the present invention, the distance between the target light-emitting unit and the origin is a first distance; the offset magnitude is positively correlated with the first distance.

[0007] According to a lighting assembly provided by the present invention, the center of the light spot formed by the target light-emitting unit illuminating the working surface is a first center; the projection of the target light-emitting unit on the working surface is a second projection; the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the position of the deflection direction toward the first projection includes: the first center being deflected relative to the second projection; wherein, the deflection direction is the direction from the second projection to the first projection; the deflection magnitude is positively correlated with a first distance, including: the distance between the first projection and the first center is a second distance; the second distance is positively correlated with the first distance.

[0008] According to a lighting component provided by the present invention, all target light-emitting units in a plurality of light-emitting units are arranged in an array.

[0009] According to the lighting assembly provided by the present invention, the height of the light-emitting unit from the working surface in the direction perpendicular to the working surface ranges from 300mm to 500mm.

[0010] According to a lighting assembly provided by the present invention, the light spot formed by the target light-emitting unit illuminating the working surface is rectangular in shape.

[0011] According to the present invention, the length of the rectangle ranges from 700mm to 1200mm, and the width ranges from 500mm to 800mm.

[0012] According to an illumination assembly provided by the present invention, at least one of the target light-emitting units has a light intensity uniformity of less than or equal to 7 in the entire light spot area of ​​the light spot formed on the irradiated working surface.

[0013] According to the lighting component provided by the present invention, the uniformity of light intensity in the central spot area of ​​all light spot areas is less than or equal to 3; wherein, the center of the central spot area coincides with the center of all light spot areas, and the proportion of the central spot area to the total light spot area is greater than 40%.

[0014] According to the lighting assembly provided by the present invention, the light spot formed by the target light-emitting unit on the working surface is rectangular in shape, with a total light spot area length of 700mm, a total light spot area width of 500mm, a central light spot area length of 500mm, and a central light spot area width of 300mm.

[0015] According to the lighting assembly provided by the present invention, the area where the light spot formed by the target light-emitting unit irradiates the working surface is called the light spot area, and the ratio of the luminous flux of the area irradiated by the target light-emitting unit in the light spot area to the total luminous flux emitted by the target light-emitting unit is greater than or equal to 60%.

[0016] The present invention also provides a lighting device, comprising: a lamp holder, a support assembly connected to the lamp holder, and a lighting assembly as described above, wherein the lighting assembly is fixed on the lamp holder.

[0017] The present invention provides an illumination component and an illumination device. The illumination component includes: a substrate and a plurality of light-emitting units disposed on a first surface of the substrate; among the plurality of light-emitting units, a target light-emitting unit includes a light-emitting component and a transmission component, the transmission component is used to refract the light emitted by the light-emitting component, and the light emitted by the light-emitting component illuminates the working surface under the refraction of the transmission component to form a light spot; the center of the position arrangement of all target light-emitting units is the origin; the projection of the origin on the working surface is the first projection; the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the deflection direction is toward the position of the first projection. Therefore, the target light-emitting unit in this invention includes a light-emitting component and a transmission component. The light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction is towards the first projection position of the center of the layout of all target light-emitting units on the working surface. In this case, due to the convergence of the light, the user will not experience strong glare when using the light source for illumination. At the same time, it can also ensure the uniformity of illuminance in the illumination area of ​​the lighting component. This solves the defects of uneven illuminance distribution on the table and strong glare when the user uses the light source for illumination in the prior art, and achieves the purpose of improving the uniformity of illuminance in the illumination area of ​​the lighting component in the lamp and eliminating glare. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a direct-lit lamp head in related technologies.

[0020] Figure 2 yes Figure 1 The diagram shows a cross-sectional structure of a straight-down lamp holder.

[0021] Figure 3 This is a schematic diagram of the overall structure of a light guide plate type lamp head in related technologies.

[0022] Figure 4 yes Figure 3 The diagram shows the positions of each component in the light guide plate type lamp head.

[0023] Figure 5 This is a schematic diagram of a Lambertian distribution of light distribution curves in related technologies.

[0024] Figure 6 It is an illuminance distribution diagram of light on the irradiated surface after the light source shines on it in the related technology.

[0025] Figure 7 This is a schematic diagram of eye position light under illumination by a light source in related technologies.

[0026] Figure 8 This is a schematic diagram of the structure of the lighting component provided by the present invention and the trend of the irradiated light.

[0027] Figure 9A This is one of the schematic diagrams showing the center of the layout of all target light-emitting units provided by the present invention.

[0028] Figure 9B This is the second schematic diagram of the center of the layout of all target light-emitting units provided by the present invention.

[0029] Figure 9C This is the third schematic diagram of the center of the layout of all target light-emitting units provided by the present invention.

[0030] Figure 10 This is one of the schematic diagrams showing the projection of the target light-emitting unit, the projection of the origin, and the position of the first center of the light spot irradiated by the target light-emitting unit on the working surface in the lighting assembly provided by the present invention.

[0031] Figure 11This is a schematic diagram showing that the light spot of the target light-emitting unit provided by the present invention is offset relative to the second projection on the working surface, and the offset direction is towards the first projection in the horizontal direction.

[0032] Figure 12 This is the second schematic diagram showing the projection of the target light-emitting unit, the projection of the origin, and the position of the first center of the light spot irradiated by the target light-emitting unit on the working surface in the lighting assembly provided by the present invention.

[0033] Figure 13A This is one of the schematic diagrams of a target light-emitting unit refracting light in the lighting assembly provided by the present invention.

[0034] Figure 13B This is the second schematic diagram of a target light-emitting unit refracting light in the lighting assembly provided by the present invention.

[0035] Figure 14 This is a schematic diagram of the energy division surface of the light emitted by the target light-emitting unit in the lighting assembly provided by the present invention.

[0036] Figure 15 This is one of the schematic diagrams showing the arrangement of the target light-emitting units in the lighting assembly provided by the present invention.

[0037] Figure 16 This is the second schematic diagram of the arrangement of the target light-emitting units in the lighting assembly provided by the present invention.

[0038] Figure 17 This is the third schematic diagram of the arrangement of the target light-emitting units in the lighting assembly provided by the present invention.

[0039] Figure 18 This is a schematic diagram showing the light path of some light-emitting units in the lighting assembly provided by the present invention, where the light-emitting units are arranged in a straight line.

[0040] Figure 19 This is a schematic diagram of the light path of a light-emitting unit located at the center position in the lighting assembly provided by the present invention, where the light-emitting units are arranged in a straight line.

[0041] Figure 20 This is a schematic diagram of the illumination area of ​​a light-emitting unit located at the center position in the lighting assembly provided by the present invention, where the light-emitting units are arranged in a straight line.

[0042] Figure 21 This is a schematic diagram of the light path of a light-emitting unit located at the edge position in the lighting assembly provided by the present invention, where the light-emitting units are arranged in a straight line.

[0043] Figure 22This is a schematic diagram of the illumination area of ​​a light-emitting unit located at the edge of a lighting assembly provided by the present invention, where the light-emitting units are arranged in a straight line.

[0044] Figure 23 This is a schematic diagram of the horizontal and vertical directions in the lighting assembly provided by the present invention.

[0045] Figure 24 This is the light distribution curve of the lighting component provided by the present invention.

[0046] Figure 25 This is a diagram illustrating the illuminance distribution of the lighting component provided by the present invention.

[0047] Figure 26 This is a comparison diagram of the illuminance distribution of the lighting components in the embodiments of the present invention and the lighting fixtures in related technologies in the vertical direction.

[0048] Figure 27 This is a comparison diagram of the illuminance distribution of the lighting components in the embodiments of the present invention and the lighting conditions of lamps in related technologies in the horizontal direction.

[0049] Figure 28 This is a schematic diagram of the eye position line of the lighting component provided by the present invention during use.

[0050] Figure 29 This is a diagram illustrating the layout of the rectangular test area for illuminance and illuminance uniformity in GB / T 9473-2022 "Performance Requirements for Desk Lamps for Reading and Writing".

[0051] Figure 30 This is a schematic diagram of the lighting device provided by the present invention.

[0052] Figure 31 This is a flowchart illustrating the manufacturing method of the lighting component provided by the present invention.

[0053] Figure 32 This is a schematic diagram illustrating the surface profile of the lens in the design unit of the method for manufacturing the lighting component provided by the present invention. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0055] The following is combined with Figures 8-22 The lighting assembly of the present invention is described.

[0056] Figure 8 This is a structural schematic diagram of the lighting component provided by the present invention. Figure 8 As shown, the lighting assembly 800 includes: a substrate 801, and a plurality of light-emitting units 802 disposed on a first surface of the substrate 801.

[0057] Among the multiple light-emitting units 802, the target light-emitting unit includes a light-emitting component and a transmission component. The transmission component is used to refract the light emitted by the light-emitting component. The light emitted by the light-emitting component illuminates the working surface under the refraction of the transmission component to form a light spot.

[0058] The center of the layout of all target light-emitting units is the origin; the projection of the origin onto the working surface is the first projection, and the projection of the target light-emitting unit onto the working surface is the second projection; the light spot of the target light-emitting unit on the working surface is offset relative to the second projection, and the offset direction is towards the first projection.

[0059] The lighting assembly provided by this invention includes: a substrate and a plurality of light-emitting units disposed on a first surface of the substrate; among the plurality of light-emitting units, a target light-emitting unit includes a light-emitting component and a transmission component, the transmission component being used to refract the light emitted by the light-emitting component, the light emitted by the light-emitting component illuminating the working surface under the refraction of the transmission component to form a light spot; the center of the arrangement of all target light-emitting units is the origin; the projection of the origin on the working surface is the first projection; the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the deflection direction is toward the position of the first projection of the arrangement of all target light-emitting units on the working surface. Therefore, in this invention, the target light-emitting unit includes a light-emitting component and a transmission component, the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the deflection direction is toward the position of the first projection of the center of the arrangement of all target light-emitting units on the working surface. In this case, due to the convergence of the light, the user will not experience strong glare when using the light source, while also ensuring the uniformity of illuminance within the illumination area of ​​the lighting assembly, thereby solving the defects of uneven illuminance distribution on the table and strong glare when the user uses the light source in the prior art, achieving the purpose of improving the uniformity of illuminance within the illumination area of ​​the lighting assembly in the lamp and eliminating glare.

[0060] In some implementations, multiple light-emitting units can all be target light-emitting units (see the corresponding introduction of target light-emitting units below, which will not be explained in detail here).

[0061] In some embodiments, a portion of the multiple light-emitting units are target light-emitting units, while the other portion are not target light-emitting units (or are referred to as non-target light-emitting units).

[0062] In practice, the number of target light-emitting units is multiple.

[0063] In specific implementation, there is a position on substrate 801 that is the center of the layout of all target light-emitting units, such as... Figures 9A-9C As shown.

[0064] In this embodiment of the invention, the center of the position layout of all target light-emitting units is called the origin.

[0065] For example, such as Figure 9A As shown, multiple light-emitting units can all be target light-emitting units. On the first surface of substrate 801, multiple target light-emitting units are arranged sequentially along a straight line L. Among the two outermost target light-emitting units, the leftmost point of the leftmost target light-emitting unit is A1, and the rightmost point of the rightmost target light-emitting unit is A2. A1 and A2 are located on the straight line L, and the center of the layout of all target light-emitting units is the midpoint of line segment A1A2.

[0066] For example, such as Figure 9B As shown, multiple light-emitting units can all be target light-emitting units. On the first surface of substrate 801, multiple target light-emitting units, when connected, can form a closed geometric shape (such as...). Figure 9B The center of the rectangle shown by the dashed line can be the center of this geometry, such as... Figure 9B The center of the rectangle formed by the dashed lines, i.e. Figure 9B The intersection of the midpoint lines. Of course, it is understandable that when all the target light-emitting units are connected to form a closed geometric shape, the shape of the geometric shape is not limited to a rectangle, but can also be a circle, a polygon (including regular polygons and irregular polygons), etc.

[0067] For example, such as Figure 9C As shown, some of the multiple light-emitting units are target light-emitting units, while others are not. In this case, the center of the layout of all target light-emitting units can be determined solely based on the position of the target light-emitting units. Figure 9C The center of the layout of all target light-emitting units is the center of the rectangle formed by the dashed lines, that is... Figure 9C The intersection of the midpoint line.

[0068] Next, we will introduce the target light-emitting unit.

[0069] like Figure 8 As shown, with Figure 8 Taking the target light-emitting unit 802C as an example, the target light-emitting unit may include: light-emitting component 8021 and transmission component 8022.

[0070] The transmission component 8022 is used to refract the light emitted by the light-emitting component 8021. The light emitted by the light-emitting component 8021 shines on the working surface and forms a light spot under the refraction of the transmission component 8022.

[0071] The design of the target light-emitting unit satisfies the following conditions: the center of the layout of all target light-emitting units is the origin; the projection of the origin onto the working surface is the first projection, and the projection of the target light-emitting unit onto the working surface is the second projection; the light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction is towards the first projection.

[0072] For example, such as Figure 10 As shown, the area of ​​the light spot formed by the target light-emitting unit 1 illuminating the working surface is the area A corresponding to the light spot.

[0073] The light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction is towards the first projection. This means that when the light-emitting component is only placed at the position of the target light-emitting unit, the light emitted by the light-emitting component illuminates the working surface to form an unrefractive light spot. The light spot on the working surface illuminated by the light emitted by the light-emitting component is deflected relative to the position of the unrefractive light spot under the refraction of the transmission component, and the deflection direction is towards the first projection. For example... Figure 11 As shown in parts a and b, Figure 11 Part a shows the case where the unrefractive light spot does not completely cover the light spot (i.e., the light emitted by the light-emitting component that is refracted by the transmission component and then falls onto the working surface) of the target light-emitting unit. Figure 11 Part b shows the case where the unrefractive light spot completely covers the light spot illuminating the target light-emitting unit on the working surface. Figure 11 Parts a and b illustrate situations where the light spot illuminated by the target light-emitting unit on the working surface in the horizontal direction is shifted toward the first projection direction. In specific implementations, the light spot illuminated by the target light-emitting unit on the working surface may also be shifted only in the vertical direction toward the first projection direction, or the light spot illuminated by the target light-emitting unit on the working surface may be shifted toward the first projection direction in both the horizontal and vertical directions.

[0074] Of course, this is understandable. Figure 11 Parts a and b only illustrate the case where the light spot illuminated by the target light-emitting unit on the working surface is rectangular. In specific implementations, the shape of the light spot illuminated by the target light-emitting unit on the working surface may be, but is not limited to, a rectangle, and may also be, for example, a circle or other polygons.

[0075] It should be noted that when the light-emitting component is only placed at the location of the target light-emitting unit, the shape of the unrefractive light spot formed by the light emitted by the light-emitting component on the working surface includes, but is not limited to, the following: Figure 11The circular shape shown in parts a and b can also be, for example, a rectangle or other polygons.

[0076] In some embodiments, the distance between the target light-emitting unit and the origin is a first distance, and the offset amplitude is positively correlated with the first distance. That is, the larger the first distance, the larger the offset amplitude.

[0077] In some embodiments, the center of the light spot formed by the target light-emitting unit illuminating the working surface is a first center; the projection of the target light-emitting unit on the working surface is a second projection. In this case, the light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction toward the position of the first projection includes: the first center being deflected relative to the second projection, and the deflection direction being the direction from the second projection to the first projection; the deflection magnitude being positively correlated with the first distance, including: the distance between the first projection and the first center being the second distance; and the second distance being positively correlated with the first distance.

[0078] See Figure 12 The projection of the origin on the working surface is the first projection, the projection of the target light-emitting unit 1 on the working surface is the second projection 1, the center of the light spot formed by the target light-emitting unit 1 on the working surface is the first center 1, the first center 1 is offset relative to the second projection 1, and the offset direction is the direction from the second projection 1 to the first projection.

[0079] See Figure 12 The projection of the target light-emitting unit 2 on the working surface is the second projection 2. The center of the light spot formed by the target light-emitting unit 2 on the working surface is the first center 2. The first center 2 is offset relative to the second projection 2, and the offset direction is the direction from the second projection 2 to the first projection.

[0080] See Figure 12 The distance between the target light-emitting unit 1 and the origin is the first distance L1, the distance between the second projection 1 and the first center 1 is the second distance L3, the distance between the target light-emitting unit 2 and the origin is the first distance L2, the distance between the second projection 2 and the first center 2 is the second distance L4, and when the first distance increases from L2 to L1, the second distance increases from L4 to L3.

[0081] In some embodiments, the transmission components of the target light-emitting units at different locations are different.

[0082] The difference in the transmission components of target light-emitting units at different locations means that the surface profile of the light-emitting surface (i.e., the surface from which the light rays are emitted) of the transmission components of target light-emitting units at different locations is different. See also Figure 8Among the multiple target light-emitting units, the surface contours of the light-emitting surfaces of the transmission components in the target light-emitting unit 802A located at the left edge, the target light-emitting unit 802B located at the middle position, and the target light-emitting unit 802C located at the right edge are all different.

[0083] It should be noted that the difference in surface contours mentioned here means that after the first target light-emitting unit at the first position is translated to the second position where the second target light-emitting unit is located, the surface contours of the light-emitting surface of the first target light-emitting unit and the surface contours of the light-emitting surface of the second target light-emitting unit cannot coincide.

[0084] See Figure 8 As shown, Figure 8 All light-emitting units 802 in the model are target light-emitting units.

[0085] The light emitted by the target light-emitting unit is distributed only within a certain spatial range. The area illuminated on the working surface by the light emitted by the target light-emitting unit is the designated illumination area.

[0086] like Figure 8 As shown, taking the target light-emitting unit 802C as an example, based on the different surface contours of the light-emitting surface of the transmission component of the target light-emitting unit, the target light-emitting unit can refract the light emitted by the light-emitting component, so that the light emitted by the light-emitting component can be emitted from a certain spatial range, such as... Figure 13A and Figure 13B As shown. Figure 13A and Figure 13B To illustrate the light rays emitted from the light-emitting component in the target light-emitting unit 802C and emitted through the transmission component in the target light-emitting unit 802C from different angles. From 13A and... Figure 13B As can be seen, the light emitted from the transmission component can only be distributed within a certain spatial range. After the emitted light shines on the working surface, it satisfies the above requirements. Figure 10 or Figure 12 The relationship shown is as follows.

[0087] It should be noted that, Figure 13A and Figure 13B The red area in the middle represents the energy dividing plane. A complete representation of the energy dividing plane is shown below. Figure 14 As shown, the energy dividing surface can divide all the light emitted by the target light-emitting unit into two parts, and the energy (e.g., light intensity) of the two parts is equal or approximately equal. In this case, the light intensity distribution of the light spot illuminating the working surface by the target light-emitting unit is relatively uniform.

[0088] It should be noted that when the light-emitting unit is set at the origin, the light spot formed by the light-emitting unit on the working surface is basically the same as the light spot formed by the target light-emitting unit on the working surface.

[0089] In some embodiments, multiple target light-emitting units can be arranged sequentially along a straight line, such as... Figure 8 As shown.

[0090] In some embodiments, on the first surface of the substrate 801, a plurality of target light-emitting units may be arranged in an array, such as Figure 15 As shown.

[0091] In some embodiments, such as Figure 8 As shown, two adjacent target light-emitting units can be set up close to each other without any spatial gap between them.

[0092] In some embodiments, such as Figure 15 As shown, two adjacent target light-emitting units can be arranged in a non-closely adjacent manner, and there can be a certain spatial gap between them.

[0093] Of course, it is understandable that the arrangement of multiple target light-emitting units includes, but is not limited to, array arrangement. For example, multiple target light-emitting units can be evenly distributed on a circular trajectory, such as... Figure 16 As shown. Alternatively, multiple target light-emitting units can be evenly or unevenly distributed on an irregular pattern trajectory, such as... Figure 17 As shown.

[0094] In practice, the aforementioned work surfaces, such as the surface of a table or workbench, are support surfaces specifically designed for desk work to provide stable support.

[0095] The shape of the light spot formed by the target light-emitting unit on the irradiation surface can be, for example, rectangular, circular, etc., which can be set by those skilled in the art according to the actual situation, and the embodiments of the present invention do not limit this.

[0096] In some embodiments, the area where the light spot formed by the target light-emitting unit irradiates the working surface is called the light spot area, and the ratio of the regional luminous flux of the target light-emitting unit irradiating the light spot area to the total luminous flux emitted by the target light-emitting unit is greater than or equal to 60%.

[0097] The first surface can be parallel to the working surface or not parallel to the working surface.

[0098] The following description uses the example of the first surface being parallel to the working surface to illustrate the embodiments of the present invention. In specific implementations, the arrangement of the lighting components can be adapted to the case where the first surface is parallel to the working surface but not parallel to it.

[0099] based on Figure 8 The lighting component 800 shown, Figure 18 The diagram illustrates, for example, the light emitted by the target light-emitting units 802 at five locations and a schematic diagram of the energy division surface. Figure 18As shown, in the horizontal direction (see...) Figure 23 The horizontal direction shown in the figure cross-section represents the light region of multiple light-emitting units. The light emitted by each target light-emitting unit 802 has an energy dividing surface in space (i.e., Figure 18 (The green portion in the middle) For each target light-emitting unit 802, the energy dividing surface of the target light-emitting unit 802 divides the energy of the light emitted by the target light-emitting unit 802 into two parts. In a specific embodiment, the illumination intensity on the left side of the energy dividing surface is equal to (or approximately equal to) the illumination intensity on the right side of the energy dividing surface. The deviation between the intersection line of the energy dividing surface of each target light-emitting unit 802 and the working surface is less than the set deviation.

[0100] For example, with Figure 8 Taking the lighting component 800 shown as an example, the light path of the light-emitting unit 802B is as follows: Figure 19 As shown, the illumination area of ​​the light-emitting unit 802B is as follows: Figure 20 As shown.

[0101] For example, with Figure 8 Taking the illumination component 800 shown as an example, the light path of the target light-emitting unit 802C is as follows: Figure 21 As shown, the irradiation area of ​​the target light-emitting unit 802C is as follows: Figure 22 As shown.

[0102] based on Figures 18-22 It can be seen that the light from multiple light-emitting units 802 illuminates the same area on the table, and the light-emitting units 802 at different positions illuminate the same area of ​​the work surface.

[0103] Based on such Figure 8 The lighting component 800 shown is analyzed, and the light distribution of the lighting component 800 can be obtained as follows: Figure 24 The light distribution curve shown is from... Figure 24 As can be seen, the red curve is the light distribution curve of the light emitted by the lighting component in the horizontal direction, and the blue curve is the light distribution curve of the light emitted by the lighting component in the vertical direction. From Figure 24 As can be seen, in this embodiment of the invention, the light distribution curve of the light emitted by the lighting component is no longer Lambertian, whether it is the light distribution curve of the light emitted by the lighting component in the horizontal direction or the light distribution curve of the light emitted by the lighting component in the vertical direction.

[0104] Based on such Figure 8 The illumination component 800 shown can be used to obtain the illuminance distribution of the light emitted by the illumination component 800 as follows: Figure 25 As shown, Figure 25 and Figure 6 The comparison clearly shows that, in this embodiment of the invention, the distribution of light intensity (i.e., illuminance) in the irradiated area is different from that in the present invention. Figure 6The uniformity of light intensity distribution is greatly improved.

[0105] In some embodiments, at least one of the target light-emitting units has a light intensity uniformity of less than or equal to 7 in the entire light spot area of ​​the light spot formed on the irradiated working surface.

[0106] In some embodiments, the uniformity of illumination intensity in the central spot region of the entire light spot region is less than or equal to 3; wherein the center of the central spot region coincides with the center of the entire light spot region, and the proportion of the central spot region to the entire light spot region is greater than 40%. When the shape of the light spot formed by the target light-emitting unit on the working surface is rectangular, the length of the entire light spot region is 700 mm, the width of the entire light spot region is 500 mm, the length of the aforementioned central spot region is 500 mm, and the width of the aforementioned central spot region is 300 mm.

[0107] based on Figure 23 The illuminance distribution of the light emitted by the lighting component 800 in the horizontal and vertical directions shown is compared with the existing Lambertian illuminance distribution to obtain the following results: Figure 26 The vertical illuminance distribution comparison diagram shown, and as shown in the figure Figure 27 The image shows a comparison of illuminance distribution along the horizontal direction. From... Figure 26 and Figure 27 As can be seen, the uniformity of the illuminance distribution in the horizontal and vertical directions of the lighting component 800 in this embodiment of the invention is significantly higher than that of the existing Lambert type illuminance distribution.

[0108] In this embodiment of the invention, the target light-emitting unit is designed independently for the working surface, and each target light-emitting unit can provide a uniform illuminance distribution, ensuring the uniformity and comfort of the lighting.

[0109] Based on the lighting components provided in the embodiments of the present invention, such as Figure 28 As shown, when providing illumination, the light emitted by the lighting component is at a low eye level, so the light will not enter the user's eyes and the user will not experience glare when using the light source.

[0110] Figure 29 The diagram illustrates the layout of the rectangular test area for illuminance and illuminance uniformity as specified in GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps". Based on this layout, to further standardize the illumination area, in some embodiments, the light spot formed by the target light-emitting unit on the illumination surface is rectangular. The length of this rectangle ranges from 700mm to 1200mm, and the width ranges from 500mm to 800mm.

[0111] In some embodiments, the height of the target light-emitting unit from the working surface in the direction perpendicular to the working surface ranges from 300mm to 500mm.

[0112] In specific implementation, the height of the target light-emitting unit from the working surface is, for example... Figure 11 The lighting height is shown in the figure.

[0113] The number of target light-emitting units can be set by those skilled in the art according to the actual situation, and the embodiments of the present invention do not limit this.

[0114] Therefore, it can be seen that the design of the lighting component in the implementation of the present invention can meet the relevant provisions of GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps", ensuring the uniformity and comfort of lighting.

[0115] In some embodiments, the lens may be made of materials such as acrylic or polycarbonate (PC).

[0116] In some embodiments, the light source 8021 in the light-emitting unit 802 may be, for example, a light-emitting diode (LED).

[0117] Figure 30 This is a schematic diagram of a lighting device provided in an embodiment of the present invention. Figure 30 As shown, the lighting device 220 includes: a lamp holder 2201, a support component 2202 connecting the lamp holder 2201, and a lighting component 800 in the above embodiment, wherein the lighting component 800 is fixed on the lamp holder 2201.

[0118] The lighting fixture 220 may be, for example, a table lamp or a chandelier specifically designed to illuminate a particular area.

[0119] In some embodiments, the number of lighting components 800 can be multiple, multiple lighting components 800 can be connected together, and the multiple lighting components 800 can be located in different spatial positions.

[0120] In some embodiments, the lighting device 220 may be placed on a table (e.g., a desk lamp placed on a table for students to study), in which case the support assembly 2202 may include a base and a lamp arm. The lamp arm connects the base and the lamp holder.

[0121] In some embodiments, the lighting device 220 can also be fixed at any position as needed by the user. In this case, the support assembly 2202 includes a fixing clip and a fixing arm. The fixing arm connects the fixing clip and the lamp holder.

[0122] The lighting device provided by the present invention includes the above-mentioned lighting components, a substrate, and a plurality of light-emitting units disposed on a first surface of the substrate; among the plurality of light-emitting units, the target light-emitting unit includes a light-emitting component and a transmission component, the transmission component is used to refract the light emitted by the light-emitting component, and the light emitted by the light-emitting component illuminates the working surface under the refraction of the transmission component to form a light spot; the center of the position arrangement of all target light-emitting units is the origin; the projection of the origin on the working surface is the first projection; the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the deflection direction is toward the position of the first projection. Therefore, the target light-emitting unit in this invention includes a light-emitting component and a transmission component. The light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction is towards the first projection position of the center of the layout of all target light-emitting units on the working surface. In this case, due to the convergence of the light, the user will not experience strong glare when using the light source for illumination, while ensuring the uniformity of illuminance within the illumination area of ​​the lighting component. This solves the defects of uneven illuminance distribution on the table and strong glare when the user uses the light source in the prior art, achieving the purpose of improving the uniformity of illuminance within the illumination area of ​​the lighting component in the lamp and eliminating glare. In addition, the design of the lighting component in this invention complies with the relevant provisions of GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps", ensuring the uniformity and comfort of illumination. Therefore, the lighting device in this embodiment also complies with the relevant provisions of GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps", ensuring the uniformity and comfort of illumination.

[0123] The manufacturing method of the lighting component provided by the present invention will be described below. The manufacturing method of the lighting component described below can be referred to in correspondence with the description of the lighting component above.

[0124] Figure 24 This is a schematic flowchart illustrating the manufacturing method of the lighting component provided by the present invention. Figure 24 As shown, the method includes the following steps S2301~S2303.

[0125] S2301: Based on the position of each light-emitting unit in a plurality of light-emitting units to be designed, calculate the surface profile of the lens in each light-emitting unit to be designed.

[0126] Multiple light-emitting units to be designed can be arranged sequentially according to a predefined path. Afterward, the surface profile of the lens in each light-emitting unit can be calculated based on its position.

[0127] In practice, the surface profile of the lens can be calculated based on the following principle.

[0128] The light distribution curve of a typical LED is a Lambertian distribution (e.g., ...). Figure 5 As shown). In the Lambert distribution, the light intensity is a cosine function of the emission angle (the angle at which the light beam is emitted by the light source or luminaire), that is: Where I represents light intensity; The luminous angle.

[0129] Based on the light distribution curve of the LED, the luminous flux contained in each angle can be calculated through integration. See the following formula: ;in, This represents the peak luminous intensity of the LED.

[0130] like Figure 25 As shown, let the concave surface of the lens be an arc, allowing light from the light source to enter the lens perpendicularly to the interface. The angles between the two outgoing rays and the perpendicular axis are respectively... and Based on the luminous flux calculation, the angle can be determined. and angle The ratio of luminous flux included is: .

[0131] To ensure uniform illumination, the distribution of road surface spacing corresponding to the emitted light rays should be as follows: = .

[0132] The gap between the inner wall of the lens and the light source can be air or filled with other media depending on the actual situation.

[0133] like Figure 25 As shown, the light source is set at the center point of the contact surface between the lens and the first surface. Based on the position of the light source and the above calculation principle, with the position of the light source as the center, the position of the contour point on the lens surface is calculated along the first calculation direction to the left of the light source position, and the position of the contour point on the lens surface is calculated along the second calculation direction to the right of the light source position, and finally the surface contour of the lens is obtained.

[0134] S2302: Based on the surface profile of the lens in any one of the multiple light-emitting units to be designed, create the light-emitting unit corresponding to the target light-emitting unit to be designed, and obtain multiple light-emitting units.

[0135] The surface profile of the lens, for example Figure 25 The outer wall of the lens.

[0136] S2303: Multiple light-emitting units are mounted on the first surface of a substrate based on an arrangement path to obtain an illumination assembly.

[0137] The arrangement path is determined based on the position of the light-emitting unit to be designed in multiple light-emitting units corresponding to each light-emitting unit.

[0138] The method for manufacturing a lighting component provided by this invention can produce the lighting component based on optical principles. Based on the position of each of the multiple light-emitting units to be designed, the surface profile of the lens in each light-emitting unit to be designed is calculated. Based on the surface profile of the lens in any target light-emitting unit among the multiple light-emitting units to be designed, a light-emitting unit corresponding to the target light-emitting unit to be designed is manufactured, resulting in multiple light-emitting units. The multiple light-emitting units are then mounted on the first surface of a substrate based on an arrangement path, thus obtaining the lighting component. Based on the design of the above lighting component, the defects of uneven illuminance distribution on a desktop and strong glare when the user uses the light source in the prior art are solved, achieving the purpose of improving the uniformity of illuminance in the illumination area of ​​the lighting component in the lamp and eliminating glare. Furthermore, the design of the lighting component in this invention complies with the relevant provisions of GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps", ensuring the uniformity and comfort of the lighting. Therefore, the lighting device in this embodiment also complies with the relevant provisions of GB / T 9473-2022 "Performance Requirements for Reading and Writing Desk Lamps", ensuring the uniformity and comfort of the lighting.

[0139] The lighting assembly includes: a substrate and a plurality of light-emitting units disposed on a first surface of the substrate; among the plurality of light-emitting units, the target light-emitting unit includes a light-emitting component and a transmission component, the transmission component is used to refract the light emitted by the light-emitting component, and the light emitted by the light-emitting component illuminates the working surface under the refraction of the transmission component to form a light spot; the center of the position arrangement of all target light-emitting units is the origin; the projection of the origin on the working surface is the first projection; the light emitted by the light-emitting component is deflected under the refraction of the transmission component, and the deflection direction is toward the position of the first projection.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lighting assembly, characterized in that, include: A substrate, and a plurality of light-emitting units disposed on a first surface of the substrate; Among the plurality of light-emitting units, the target light-emitting unit includes a light-emitting component and a transmission component. The transmission component is used to refract the light emitted by the light-emitting component, and the light emitted by the light-emitting component illuminates the working surface under the refraction of the transmission component to form a light spot. The center of the layout of all the target light-emitting units is the origin; the projection of the origin onto the working surface is the first projection; the light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction is toward the position of the first projection.

2. The lighting assembly according to claim 1, characterized in that, The transmission components of the target light-emitting unit at different locations are different.

3. The lighting assembly according to claim 1, characterized in that, The distance between the target light-emitting unit and the origin is a first distance; the offset magnitude is positively correlated with the first distance.

4. The lighting assembly according to claim 3, characterized in that, The center of the light spot formed by the target light-emitting unit illuminating the working surface is the first center; the projection of the target light-emitting unit on the working surface is the second projection. The light emitted by the light-emitting component is deflected by the refraction of the transmission component, and the deflection direction toward the first projection includes: the first center being deflected relative to the second projection, and the deflection direction being the direction from the second projection to the first projection; The offset magnitude is positively correlated with the first distance, including: the distance between the first projection and the first center is the second distance; the second distance is positively correlated with the first distance.

5. The lighting assembly according to any one of claims 1-4, characterized in that, The multiple light-emitting units are arranged in an array.

6. The lighting assembly according to any one of claims 1-4, characterized in that, In the direction perpendicular to the working surface, the height of the target light-emitting unit from the working surface ranges from 300mm to 500mm.

7. The lighting assembly according to claim 1, characterized in that, The light spot formed by the target light-emitting unit illuminating the working surface is rectangular in shape.

8. The lighting assembly according to claim 7, characterized in that, The length of the rectangle ranges from 700mm to 1200mm, and the width of the rectangle ranges from 500mm to 800mm.

9. The lighting assembly according to claim 1 or 7, characterized in that, In all the target light-emitting units, the uniformity of light intensity in the entire light spot area formed on the irradiated working surface is less than or equal to 7.

10. The lighting assembly according to claim 9, characterized in that, The uniformity of light intensity in the central spot area of ​​all light spot areas is less than or equal to 3; wherein the center of the central spot area coincides with the center of all light spot areas, and the central spot area accounts for more than 40% of the total light spot area.

11. The lighting assembly according to claim 10, characterized in that, The light spot formed by the target light-emitting unit on the working surface is rectangular in shape, with a total light spot area length of 700mm, a total light spot area width of 500mm, a central light spot area length of 500mm, and a central light spot area width of 300mm.

12. The lighting assembly according to claim 1, characterized in that, The area where the light spot formed by the target light-emitting unit on the working surface is located is the light spot area, and the ratio of the luminous flux of the area illuminated by the target light-emitting unit in the light spot area to the total luminous flux emitted by the target light-emitting unit is greater than or equal to 60%.

13. A lighting device, characterized in that, include: The lamp holder, the support assembly connecting the lamp holder, and the lighting assembly as described in any one of claims 1-12, wherein the lighting assembly is fixed to the lamp holder.

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