CN116025866A - Light-emitting device - Google Patents
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- CN116025866A CN116025866A CN202211557221.XA CN202211557221A CN116025866A CN 116025866 A CN116025866 A CN 116025866A CN 202211557221 A CN202211557221 A CN 202211557221A CN 116025866 A CN116025866 A CN 116025866A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
A light-emitting device is applied to the technical field of electronics and is used for achieving the effect of improving the light transmission uniformity of an atmosphere lamp under the condition of saving system power and cost. The light-emitting device comprises a light source, a light guide column and a light bar, wherein the light source is used for emitting N light beams, the light guide column is used for transmitting the N light beams to the light bar through respective light guide channels, N is a positive integer, and the lengths of the light guide channels of the N light beams are the same. The lengths of the light guide channels of the N light beams are set to be the same, so that the light guide efficiency of the light guide channels on the light guide columns is equal, the difference of illuminance of the N light beams reaching corresponding emergent points is reduced, and the light guide uniformity of the light guide columns is improved. Therefore, when the light reaches the light bar through the light guide column, the illuminance difference of the light received by different positions of the light bar is correspondingly reduced, and the light transmission uniformity of the atmosphere lamp is improved.
Description
Technical Field
The present disclosure relates to electronic technology, and particularly to a light emitting device.
Background
In intelligent sound products, intelligent sound with atmosphere lamps is increasingly popular with consumers. Under normal conditions, a light control button is arranged on the shell of the intelligent sound equipment, and a user can control the atmosphere lamp to be turned on or control the atmosphere lamp to be turned off or adjust the light brightness of the atmosphere lamp or adjust the light color of the atmosphere lamp by pressing the button. The atmosphere lamp is an illuminating lamp with a decorative effect, can be used for building the atmosphere of the environment, and can also perform light rhythm according to the rhythm of music played by the intelligent sound equipment in some special application scenes, so as to provide music rhythm atmosphere for users.
In general, the lighting effect of an atmosphere lamp is related to the illuminance and the light transmission uniformity of the atmosphere lamp: the higher the illuminance of the atmosphere lamp, the better the lighting effect of the atmosphere lamp; the higher the light transmission uniformity of the atmosphere lamp, the better the lighting effect of the atmosphere lamp. Therefore, if the lighting effect of the atmosphere lamp is to be improved, the illuminance and the light transmission uniformity of the atmosphere lamp are required to be improved. However, in the existing solutions, the illuminance of the atmosphere lamp is improved by improving the light brightness of the atmosphere lamp, but the solution needs to additionally add a heat dissipation plate to increase the power of the whole machine, and the light transmission uniformity of the atmosphere lamp is improved by adding the light scattering powder into the atmosphere lamp, but the solution increases the manufacturing cost of the intelligent sound equipment, and both the solutions do not meet the design concept of energy conservation and efficiency improvement.
In summary, there is a need for a light emitting device that can achieve the effect of improving the uniformity of light transmission of an atmosphere lamp while saving the system power and cost.
Disclosure of Invention
The invention provides a light-emitting device which is used for achieving the effect of improving the light transmission uniformity of an atmosphere lamp under the condition of saving system power and cost.
In a first aspect, the present invention provides a light emitting device. The light emitting device comprises a light source, a light guide column and a lamp. Wherein, the light is used for emitting N beams of light, N is a positive integer; the light guide columns are used for transmitting N bundles of light rays to the lamp bars through the respective light guide channels; it should be noted that the lengths of the light guide channels of the N light beams are the same.
In the invention, the lengths of the light guide channels of the N light beams are the same, so that the light guide efficiency of the light guide channels of different incidence points on the incidence surface of the light guide column is equal, the difference of the illuminance of the N light beams reaching the corresponding emergent points is smaller, and the light guide uniformity of the light guide column is higher. Therefore, when the light reaches the light bar through the light guide column, the illuminance difference of the light received by different positions of the light bar is smaller, and therefore the light transmission uniformity of the light bar is improved. Therefore, the invention can improve the light transmission uniformity of the atmosphere lamp only through the light guide column, and does not need to improve the light brightness of the atmosphere lamp or add the light scattering powder into the atmosphere lamp, thereby realizing the technical effect of improving the light transmission uniformity of the atmosphere lamp under the condition of saving the system power and the cost.
In an alternative mode, the light bar is an arc light bar, the light guide column is an arc light guide column, an edge arc where an exit face of the arc light guide column is located contacts the light bar, and an edge arc where an incident face of the arc light guide column is located contacts the light source.
In the invention, as the light bar is an arc light bar, if the light guide columns commonly used in the prior art are used, the lengths of different light guide channels of the light guide columns are not equal, so that the light guide uniformity of the light guide columns is low, and the light transmission uniformity of the light bar is low. However, the light guide channels are designed into the special-shaped curved surfaces, so that the lengths of different light guide channels of the light guide column are equal, the light guide uniformity of the light guide column is improved, and the light transmission uniformity of the light bar is improved.
In an alternative manner, for any light ray in the N light rays, the smaller the linear distance between the incident point and the exit point of the light ray on the arc-shaped light guide column, the larger the radian of the light guide channel corresponding to the light ray.
In the invention, when the linear distance between the incident point and the emergent point on the arc-shaped light guide column is smaller, the radian of the light guide channel corresponding to the light is larger; that is, when the linear distance between the incident point and the exit point on the arc-shaped light guide column is larger, the radian of the light guide channel corresponding to the light is smaller, and by using the method, the channel lengths of different incident points on the arc-shaped light guide column are equal, so that the light guide uniformity of the light guide column is improved, and the light transmission uniformity of the light bar is improved.
In an alternative way, in an arc-shaped light guiding column, the light guiding channels of the N bundles of light rays exhibit a smooth curved arc.
In the invention, the light guide efficiency of the light guide column can be improved by setting the light guide channel of the light guide column to be a smooth curve arc.
In an alternative, the angle of the smooth curved arc is less than 90 degrees.
According to the invention, the radian of the light guide channel of the light guide column is set to be smaller than 90 degrees, so that the occupied space of the light guide column can be effectively reduced, and the space utilization rate of the light-emitting device is improved.
In an alternative manner, the light emitting device further comprises a main board and a key control circuit, and the light source and the key control circuit are arranged on the main board.
In the invention, the key control circuit can be arranged on the main board. Because the key control circuit can be directly arranged on the main board, the key main board and the connecting wire for connecting the key main board and the luminous main board in the prior art are not needed, devices in the luminous device are further reduced, and therefore the manufacturing capital cost is further reduced.
In an alternative manner, the light emitting device includes N light sources, and the N light sources are disposed on the motherboard side by side.
In an alternative mode, N grooves are formed in an edge arc where an incident surface of the arc-shaped light guide column is located, and N light sources are embedded in the N grooves.
In an alternative, the lighting device further comprises a housing. Wherein, be provided with the groove that runs through that corresponds with the lamp strip on the casing, the lamp strip is fixed in running through the groove.
In an optional mode, refraction hypotenuses corresponding to the N bundles of light rays respectively are arranged in the light bar; the N light rays are emitted from the first surface of the light bar along the incident direction and are reflected to the second surface of the light bar through the corresponding refraction hypotenuse.
In the invention, the light rays entering the light bar can be emitted from the first surface and the second surface of the light bar by arranging the refraction slope in the light bar.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic top view of a possible light guide column according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a possible light emitting device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a light emitting device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a light guiding column according to an embodiment of the present invention;
fig. 5 is a schematic front view of a light guide column according to an embodiment of the present invention;
fig. 6a is a schematic diagram of a left side cross-sectional structure of a light guide channel at an incident point D according to an embodiment of the present invention;
fig. 6b is a schematic diagram of a right side cross-sectional structure of a light guide channel at an incident point E according to an embodiment of the present invention;
fig. 6c is a schematic diagram of a right side cross-sectional structure of a light guide channel at an incident point F according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a possible light guide column according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an incident surface of a light guiding column according to an embodiment of the present invention;
fig. 9 is a schematic side view of a light emitting device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. And that all other embodiments, which are intended to be within the scope of the present invention, will be within the scope of the present invention as defined by the appended claims.
Hereinafter, some terms in the present invention will be explained. It should be noted that these explanations are for the convenience of those skilled in the art, and do not limit the scope of the present invention.
1. Luminous flux (luminescence flux)
The luminous flux is a physical quantity representing the light power and is an index representing the overall brightness of the light source. The luminous flux refers to the light energy emitted by a light source or absorbed by an illuminated body in each unit time, and can be calculated by integrating the luminous intensity with the solid angle. The luminous flux is measured in lumens (lm).
2. Illuminance of light
Illuminance, also referred to as illuminance, refers to the luminous flux that impinges on a surface of a certain unit area. The name of the measuring unit is lux, the abbreviation is lux, and the unit symbol is lx. 1 lux is equal to 1 lumen/square meter. Unlike illuminance, luminance refers to the reflected luminous flux reflected from a surface of a certain unit area into the human eye.
3. Light guide column (light guide)
The light guide column is used for guiding the light emitted by the light source to a preset light-emitting position, and the working principle is that the light guide column is used for guiding most of light to a position (namely the preset light-emitting position) easy to distribute light by utilizing the fact that the refractive index of the light guide column is larger than that of air so as to easily form total reflection.
The light guiding efficiency of the light guiding column can be calculated according to the luminous flux. Specifically, the light source is incident from the incident surface of the light guide column, and is emitted from the exit surface of the light guide column through the light guide channel of the light guide column. The light guiding efficiency of the light guiding column can be obtained by calculating the ratio of the light flux emitted from the emitting surface to the light flux incident from the incident surface. The light guiding efficiency of the light guiding column is related to the length of the light guiding channel of the light guiding column. The longer the length of the light guide channel is, the lower the light guide efficiency is; the shorter the length of the light guide channel, the higher the light guide efficiency. For the same light guide column, if the light guide channels have different lengths, the light guide efficiency of the light guide channels with different lengths is different. For the same light source, when the light sources are positioned at different incidence points of the incidence surface of the light guide column, light rays are emitted from different emergence points of the emergence surface through light guide channels with different lengths, so that the illuminance of the different emergence points is different. The higher the light guiding efficiency, the higher the illuminance at the exit point. The ratio of the lowest illuminance to the highest illuminance of the exit surface of the light guide column is called the light guide uniformity of the light guide column. If one light guide column comprises light guide channels with different lengths, the larger the length difference between the different light guide channels is, the lower the light guide uniformity of the light guide column is.
In one example, as shown in fig. 1, a schematic top view of a possible light guiding column according to an embodiment of the present invention is shown. The plane on the left side of the light guide column is referred to as the incident plane, and the plane on the right side of the light guide column is referred to as the exit plane. As can be seen from fig. 1, the light guiding column comprises light guiding channels of different lengths. Wherein the light source emits a beam of light from the incident point A, the light passes through the light guide channel to reach the emergent point A ', and the distance between the incident point A and the emergent point A' is L a I.e. the length of the light-guiding channel at the point of incidence A is L a . The light source emits a beam of light from the incident point B, the light passes through the light guide channel to reach the emergent point B ', and the distance between the incident point B and the emergent point B' is L b I.e. the length of the light-guiding channel at the point of incidence B is L b . The light source emits a beam of light from the incident point C, the light passes through the light guide channel to reach the emergent point C ', and the distance between the incident point C and the emergent point C' is L c I.e. the length of the light-guiding channel at the point of incidence C is L c . As can be seen from fig. 1, the length of the light guiding channel at the incident point a is not equal to the length of the light guiding channel at the incident point B and the length of the light guiding channel at the incident point C, wherein L a <L b <L c . Therefore, the light guiding effect of the light guiding channel of the incident point ARate of>Light guiding efficiency of light guiding channel of incidence point B>Light guiding efficiency of the light guiding channel at the incidence point C. Thereby, the illuminance reaching the exit point a>Illuminance reaching exit point B>Illuminance reaching the exit point C'. For the light guide column, the illuminance of the emergent surface at different positions is unequal, and the ratio of the lowest illuminance to the highest illuminance of the emergent surface of the light guide column is larger, so that the light guide uniformity of the light guide column is lower.
The foregoing describes some terms related to embodiments of the present invention, and a description of a light emitting device in the prior art follows.
As shown in fig. 2, a schematic structural diagram of a possible light emitting device according to an embodiment of the invention is provided, and the light emitting device 200 includes a fixing bracket 201, a light emitting motherboard 202, a connecting wire 203, a key motherboard 204, a light source 205, a light guide column 206, a light bar 207, and a housing 208.
Each device is described separately below.
The housing 208 refers to a housing of the light emitting device 200, and the housing 208 is a hemispherical arc-shaped housing. The casing 208 is provided with a light control button, which can be used for controlling the light to be turned on, turned off, adjusted in brightness, adjusted in color, etc.
The fixing bracket 201 is used for fixing the light emitting main board 202.
The light emitting motherboard 202 has one or more light sources 205 disposed thereon. The light emitting motherboard may be a flexible circuit board (flexible printed circuit, FPC). The FPC is also called a flexible circuit board and a flexible circuit board, and is a flexible printed circuit board which is made of polyimide or polyester film and has high reliability and excellent performance. The lighting motherboard may also be a printed circuit board (printed circuit board, PCB). PCBs are fabricated using electronic printing techniques and are therefore referred to as printed circuit boards.
The connection line 203 is used for connecting the light-emitting main board 202 and the key main board 204. The connection line may be an FPC or a zero insertion force connector (zero insertion force, ZIF). ZIF connectors refer to electrical connectors that can be plugged with little force.
The key main board 204 is provided with a key control circuit. The key control circuitry is coupled to light control keys on the housing 208. Therefore, the key main board is disposed at a position closest to the light control key in the inner side of the housing 208. The key main board can be an FPC or a PCB.
The light source 205 is used to emit light. The light source may be a light emitting diode (light emitting diode, LED) light source. The LED light source has the advantages of small volume, long service life, high efficiency and the like, can be continuously used for 20 ten thousand hours, and is widely applied to the field of illumination.
The light guide column 206 has an incident surface in contact with the light source 205 and an exit surface in contact with the light bar 207. Since the light bar 207 is arc-shaped, the exit surface of the light guide column 206 is an arc surface. The structure of the light guide 206 can be referred to as an example of the light guide of fig. 1 in the above explanation, and the description thereof is omitted here.
The light bar 207 (i.e. the atmosphere lamp) is used to reveal the received light. The light bar 207 is embedded in the housing 208, and is attached to the housing, and the light bar 207 is also provided in an arc shape.
As can be seen from the above-mentioned fig. 1, the uniformity of the light guide column 206 in the prior art is low, so when the light emitted from the light source 205 reaches the light bar 207 through the light guide column 206, the illuminance of the light received by different positions of the light bar is not equal, and the uniformity of the light transmission of the light bar is low. At present, the light transmission uniformity of the light bar is improved by adding the light scattering powder into the light bar, however, the manufacturing cost of the light emitting device is increased by adding the light scattering powder; in addition, because the light transmission uniformity of the light bar in the prior art is lower, the illuminance of the atmosphere lamp is also lower, and the illuminance of the atmosphere lamp is generally improved by improving the brightness of the light source, however, the light source is easy to overheat due to high-power operation, and a heat dissipation device is required to be arranged on the light-emitting main board to solve the overheat problem of the light-emitting device, so that the manufacturing capital cost of the light-emitting device is further increased.
In view of this, the embodiment of the invention provides a light emitting device, which can improve illuminance of a light bar and uniformity of light transmission of the light bar.
As shown in fig. 3, a schematic structure of a light emitting device 300 according to an embodiment of the invention is shown, and the light emitting device 300 includes a light source 301, a light guiding column 302 and a light bar 303. It should be noted that the schematic structural view of the light emitting device shown in fig. 3 is an exploded view, that is, a perspective assembly view, for exploded illustration of the respective devices included in the light emitting device 300, and does not represent the connection relationship between the respective devices.
In particular, the light source 301 is configured to emit N light beams, and the light guide column 302 is configured to transmit the N light beams emitted by the light source 301 to the light bar 303 through respective light guide channels, so that the light bar 303 displays the received light beams. Wherein N is a positive integer, and the lengths of the light guide channels of N light beams are the same. Therefore, the lengths of the light guide channels of the N light beams are the same, so that the light guide efficiency of the light guide channels of different incident points on the incident surface of the light guide column is theoretically equal, the difference of the illuminance of the N light beams reaching the continuous emergent point is smaller, namely, the ratio of the lowest illuminance to the highest illuminance of the light guide column is smaller, and the light guide uniformity of the light guide column is higher. Therefore, when the light reaches the light bar 303 through the light guide column 302, the illuminance difference of the light received by the light bar at different positions is smaller, so that the light transmission uniformity of the light bar is improved.
In the embodiment of the present invention, the terms "same" or "equal" and the like are used as a description of the case where the process deviation is not considered, that is, when the process deviation exists, the two objects are "the same" or "equal" and specifically may be considered that the difference between the two objects is not greater than the process deviation.
In the embodiment of the present invention, the light source 301 may be a light emitting diode (light emitting diode, LED) light source, and the details of the light emitting diode light source may be referred to the related description, which is not repeated herein. Light guiding column 302 may illustratively be a transparent light guiding column comprising an entrance face contacting light source 301 and an exit face contacting light bar 303.
In one possible implementation, the light bar 303 is an arc light bar, and the light guiding pillar 302 is an arc light guiding pillar, where an edge arc where an exit surface of the arc light guiding pillar 302 is located contacts the light bar 303, and an edge arc where an incident surface of the arc light guiding pillar 302 is located contacts the light source 301. As shown in fig. 4, in the schematic structural view of a light guiding column according to the embodiment of the present invention, since the exit surface of the arc-shaped light guiding column 302 contacts the arc-shaped light guiding column 303, the exit surface of the arc-shaped light guiding column 302 is also arc-shaped, that is, the light guiding channel between the incident surface and the exit surface of the arc-shaped light guiding column 302 is a special-shaped curved surface.
In the above implementation manner, when the light bar is an arc light bar, the exit surface of the arc light guide pillar 302 is also set to be arc correspondingly, so that the exit surface and the light bar can be in seamless fit. Furthermore, when the exit surface is arc-shaped, if the light guide columns commonly used in the prior art are used, the lengths of different light guide channels of the light guide columns are not equal, so that the light guide uniformity of the light guide columns is low, and the light transmission uniformity of the light bar is low. However, in the embodiment of the invention, the light guide channels are designed into special-shaped curved surfaces, so that the lengths of different light guide channels of the light guide column can be equal, the light guide uniformity of the light guide column is improved, and the light transmission uniformity of the light bar is also improved. Therefore, the invention can improve the light transmission uniformity of the atmosphere lamp only through the light guide column, and does not need to improve the light brightness of the atmosphere lamp or add the light scattering powder into the atmosphere lamp, thereby realizing the technical effect of improving the light transmission uniformity of the atmosphere lamp under the condition of saving the system power and the cost.
In one possible implementation, for any light ray of the N bundles of light rays, the smaller the linear distance between the incident point and the exit point of the light ray on the arc-shaped light guide column, the larger the radian of the light guide channel corresponding to the light ray. To facilitate understanding of this implementation, examples are illustrated below with respect to fig. 5, 6a, 6b, and 6 c.
Fig. 5 is a schematic diagram of a front view structure of a light guiding column according to an embodiment of the present invention, where the light guiding column includes an incident point D, an incident point E, an incident point F, an exit point D ', an exit point E ', and an exit point F '. The incident points D and the emergent points D ' are in one-to-one correspondence, the incident points E and the emergent points E ' are in one-to-one correspondence, and the incident points F and the emergent points F ' are in one-to-one correspondence.
The schematic cross-sectional structure of a light guide column according to an embodiment of the present invention is shown in fig. 6a, 6b and 6c, wherein:
fig. 6a is a schematic diagram of a left side cross-sectional structure of a light guide channel at an incident point D according to an embodiment of the present invention d Length of light guide channel at incidence point D is l=32° d ；
Fig. 6b is a schematic diagram of a right side cross-sectional structure of a light guide channel at an incident point E according to an embodiment of the present invention e The length of the light guide channel at the incidence point E is l=28.6° e ；
Fig. 6c is a schematic diagram of a right side cross-sectional structure of a light guide channel at an incident point F according to an embodiment of the present invention f Length of light guide channel at incidence point F is l=32° f 。
Referring to fig. 6a to 6c, it can be seen that, in the arc-shaped light guide column, for any one of the N light beams, the smaller the linear distance between the incident point and the exit point of the light beam on the arc-shaped light guide column, the larger the radian of the light guide channel corresponding to the light beam, that is, the larger the linear distance between the incident point and the exit point of the light beam on the arc-shaped light guide column, the smaller the radian of the light guide channel corresponding to the light beam. Since the straight line distance between the incident point E and the emergent point E' is large, the radian theta of the light guide channel of the incident point E e Smaller, the linear distance between the incident point D and the emergent point D 'and the linear distance between the incident point F and the emergent point F' are larger, so the radian theta of the light guide channel of the incident point D d Radian θ of light guide channel at incidence point F f Smaller. By using this method, the length L of the light guide channel at the incidence point D is made d Length L of light guide channel at incidence point E e Length L of light guide channel at incidence point F f Equal, so can improve the leaded light degree of consistency of leaded light post to improve the printing opacity degree of lamp strip.
In one possible implementation, in the arc-shaped light guiding column 302, the light guiding channels of the N bundles of light rays are presented as smooth curved arcs, so that the light guiding efficiency of the light guiding column can be improved.
In one possible implementation, the angle of the smooth curved arc is less than 90 degrees, i.e., the arc of the light guide channel of the light guide column is less than 90 degrees. Specifically, as shown in fig. 7, a schematic cross-sectional structure of a possible light guiding column according to an embodiment of the present invention is shown, wherein the radian of the light guiding channel of the light guiding column is 90 degrees, and compared with the radian of the light guiding channel of the light guiding column in fig. 6 a-6 c set to be less than 90 degrees, it can be seen that the space occupied by the light guiding column with the radian of the light guiding channel of 90 degrees is larger. Therefore, by setting the radian of the light guide channel of the light guide column to be less than 90 degrees, the occupied space of the light guide column can be further reduced. In general, the light emitting device is smaller, so that the size occupied by each device in the light emitting device is smaller, and taking a light guide column as an example, the channel length of the light guide column in the light emitting device is usually limited to be less than 1.2cm, so that the occupied space of the light guide column can be effectively reduced by setting the radian of the light guide channel of the light guide column to be less than 90 degrees, and the space utilization rate of the light emitting device is improved.
In one possible implementation, with continued reference to fig. 3, the light emitting device 300 further includes a housing 306, and a through slot corresponding to the light bar 303 is provided on the housing 306, and the light bar 303 is fixed in the through slot.
In one possible implementation, with continued reference to fig. 3, the light emitting device 300 further includes a main board 304 and a key control circuit, and the light source 301 and the key control circuit are disposed on the main board 304. The motherboard may be an FPC, a PCB, or other types of circuit boards, which are not particularly limited.
In one possible implementation, with continued reference to fig. 3, the light emitting device 300 may further include one or more screws 305, the screws 305 may be used to secure the motherboard 304 in the housing 306, and may also secure the light guide post 302 in the housing 306. It should be noted that, in fig. 3, only two screws are identified, and in a specific implementation, the screws 305 may include only one screw, two screws, three screws or more screws, and is not limited in particular.
In the embodiment of the present invention, since the light guide pillar 302 is an arc light guide pillar, when the main board 304 is directly placed at a position closest to the light control key in the inner side of the housing, the light source 301 on the main board 304 can be directly contacted with the light guide pillar 302. In other words, unlike the prior art, the key control circuit may be disposed on the motherboard 304 in the embodiment of the present invention, that is, the key motherboard and the connection line for connecting the key motherboard and the light emitting motherboard in the prior art are not required, but only one motherboard 304 may be disposed instead of two motherboards and the connection line between the two motherboards in the prior art, so that devices in the light emitting apparatus may be further reduced, and thus manufacturing cost may be further reduced.
In one possible implementation, the light emitting device includes N light sources 301, which are disposed side by side on the motherboard 304.
In a possible implementation manner, as shown in fig. 8, a schematic structural diagram of an incident surface of a light guiding column according to an embodiment of the present invention is shown, where N grooves 801 are disposed on an edge arc where the incident surface of an arc-shaped light guiding column 302 is located, and N light sources are embedded in the N grooves 801.
In addition, as shown in fig. 8, one or more positioning columns 802 may be further disposed on an edge arc where the incident surface of the arc-shaped light guiding column 302 is located, and mounting holes 803 may be disposed at two end positions of the edge arc, respectively. The positioning posts 802 are used for preventing the N light sources 301 from being damaged by the grooves 801 when the N light sources 301 are embedded in the N grooves 801, and the mounting holes 803 are used for fixing the light guiding posts 302 on the housing 306.
It should be noted that only one positioning post 802 and one mounting hole 803 are identified in fig. 8, and other positioning posts 802 and other mounting holes 803 can be directly observed by those skilled in the art, so that the embodiments of the present application will not be repeated here.
In a possible implementation manner, as shown in fig. 9, a schematic side view of a light emitting device according to an embodiment of the present invention is shown, where N refractive oblique sides 901 corresponding to N light beams are disposed in the light bar 303, and the refractive oblique sides may be set to 45 ° by way of example. In practice, after the N light beams enter the light bar 303, a portion of the N light beams continue to exit from the first surface of the light bar along the incident direction, and another portion of the N light beams are reflected by the respective refractive oblique sides to exit from the second surface of the light bar. That is, the light bar structure is configured such that light incident into the light bar can be emitted from the first surface and the second surface of the light bar at the same time.
In one possible implementation, as shown in fig. 3, the light emitting device 300 further includes a mesh enclosure assembly 307, and the specific structure of the mesh enclosure assembly 307 may be referred to in the prior art, which is not described in the embodiments of the present invention.
While embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A light emitting device, comprising: a light source, a light guide column and a light bar;
the light source is used for emitting N beams of light, and N is a positive integer;
the light guide columns are used for transmitting the N beams of light rays to the lamp bars through respective light guide channels;
the lengths of the light guide channels of the N light beams are the same.
2. The light-emitting device according to claim 1, wherein the light bar is an arc-shaped light bar, the light guide pillar is an arc-shaped light guide pillar, an edge arc of an exit surface of the arc-shaped light guide pillar contacts the light bar, and an edge arc of an entrance surface of the arc-shaped light guide pillar contacts the light source.
3. The light-emitting device according to claim 2, wherein for any one of the N light beams, the smaller the linear distance between the incident point and the exit point of the light beam on the arc-shaped light guide column, the larger the radian of the light guide channel corresponding to the light beam.
4. A light-emitting device according to claim 2 or 3, wherein in the arc-shaped light-guiding column, the light-guiding path of the N-beam light exhibits a smooth curved arc.
5. The light emitting apparatus of claim 4, wherein the angle of the smooth curved arc is less than 90 degrees.
6. The light emitting device of claim 1, further comprising a motherboard and a key control circuit, the light source and the key control circuit being disposed on the motherboard.
7. The light-emitting device according to claim 6, wherein the light-emitting device comprises N light sources, the N light sources being arranged side by side on the main board.
8. A light-emitting device according to claim 2 or 3, wherein N grooves are provided on an edge arc where the incident surface of the arc-shaped light guide pillar is located, and the N light sources are embedded in the N grooves.
9. A light-emitting device according to claim 1, further comprising: a housing;
the shell is provided with a through groove corresponding to the lamp strip, and the lamp strip is fixed in the through groove.
10. The light-emitting device according to claim 1 or 9, wherein refractive oblique sides corresponding to the N light rays are provided in the light bar;
the N light rays are emitted from the first surface of the light bar along the incident direction and are reflected to the second surface of the light bar through the corresponding refraction bevel edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211557221.XA CN116025866A (en) | 2022-12-06 | 2022-12-06 | Light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211557221.XA CN116025866A (en) | 2022-12-06 | 2022-12-06 | Light-emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116025866A true CN116025866A (en) | 2023-04-28 |
Family
ID=86076786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211557221.XA Pending CN116025866A (en) | 2022-12-06 | 2022-12-06 | Light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116025866A (en) |
-
2022
- 2022-12-06 CN CN202211557221.XA patent/CN116025866A/en active Pending
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