Light intensity self-adaptive clean lamp

Abstract

A light intensity self-adaptive clean lamp comprises a light uniformizing plate, a light guide plate, an LED lamp strip, a light reflecting plate, a fixing plate, a frame, a light sensing element and a control module. The photosensitive element is arranged on the outer side of the frame and is used for monitoring external light intensity; the control module is electrically connected with an external power supply, the LED lamp strip and the photosensitive element; and the control module adaptively adjusts the light emitting power of the LED lamp strip according to the light intensity monitored by the photosensitive element. According to the lamp, the light intensity around the lamp is monitored through the photosensitive element, the light emitting power of the LED lamp strip is automatically adjusted according to the external light intensity, and therefore more comfortable lighting experience is provided for a user.

Description

Technical Field

[0001] The invention relates to the field of lamps, and in particular to a light intensity adaptive clean lamp. Background Art

[0002] Traditional clean lamps cannot automatically control the light intensity. When the natural light intensity is sufficient during the day, the lamps still output at full power, which wastes energy on the one hand and causes discomfort to users on the other hand due to overly strong lighting. In addition, the light homogenization plates in existing lamps are all transparent rectangular plates that cannot change the direction of parallel light emitted from the middle of the LED lamp beads, resulting in a waste of light energy and poor homogenization effect. Therefore, how to simultaneously achieve adaptive lighting of lamps and improve light energy utilization and homogenization effect is a current difficulty. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a light intensity adaptive cleansing lamp, comprising: a light homogenizing plate, a light guide plate, an LED light strip, a reflector, a fixing plate, a frame, a photosensitive element and a control module;

[0004] The light-diffusing plate, the light-guiding plate, the reflective plate, and the fixed plate are all rectangular plates; the light-diffusing plate, the light-guiding plate, the reflective plate, and the fixed plate are arranged in parallel from top to bottom; LED light strips are arranged on both sides of the long side of the light-guiding plate; the frame is arranged around the light-diffusing plate, the light-guiding plate, the LED light strip, the reflective plate, and the fixed plate; the control module is arranged on the outward side of the fixed plate; the photosensitive element is arranged on the outside of the frame, and the photosensitive element is used to monitor the external light intensity;

[0005] The control module is electrically connected to an external power source, the LED light strip and the photosensitive element; the control module adaptively adjusts the luminous power of the LED light strip according to the light intensity monitored by the photosensitive element.

[0006] Optionally, the light guide plate includes an upper light guide plate, a lower light guide plate and a scattered light column; the upper light guide plate and the lower light guide plate can be spliced ​​into a rectangular plate; the scattered light columns are multiple and are arranged in an array between the upper light guide plate and the lower light guide plate; the upper light guide plate, the lower light guide plate and the scattered light column are all made of transparent materials; the scattered light column is a non-straight cylinder with straight ends and a concave middle part, and the concave direction is toward the side of the lower light guide plate; the lower side of the upper light guide plate is provided with a first array groove that matches the upper half of the scattered light column, and the upper side of the lower light guide plate is provided with a second array groove that matches the lower half of the scattered light column, and the groove formed after the first array groove and the second array groove are assembled is matched with the gap of the scattered light column.

[0007] Optionally, the light guide plate is provided with array-arranged arc grooves on both sides facing the LED light strip, the curved surface of the arc groove matches the outer surface of the LED lamp beads in the LED light strip; the position of the arc groove corresponds to the position of the LED lamp beads in the LED light strip; the light input surface of the scattered light column is located in the middle of the arc groove.

[0008] Optionally, the upper light guide plate is arranged on a side close to the reflective plate, and the lower light guide plate is arranged on a side close to the light homogenizing plate; the outward side of the upper light guide plate is provided with an array of quadrangular pyramidal grooves; the outward side of the lower light guide plate is provided with an array of transparent hemispherical protrusions.

[0009] Optionally, the vertical projection positions of the quadrangular pyramid groove, the hemispherical protrusion and the astigmatism column correspond to each other, or the vertical projection positions of the quadrangular pyramid groove, the hemispherical protrusion and the astigmatism column are staggered and do not overlap each other.

[0010] Optionally, the straight portions at both ends of the light guide column are respectively provided with a first annular groove, a second annular groove, and a third annular groove, and the concave portion in the middle of the light guide column is provided with an array of annular grooves.

[0011] Optionally, the size of the first annular groove is smaller than that of the second annular groove, and the size of the second annular groove is smaller than that of the third annular groove; the distance between the first annular groove and the second annular groove is smaller than the distance between the second annular groove and the third annular groove.

[0012] Optionally, the frame includes long frames on both sides and short frames at both ends; the long frames are respectively provided with a first groove, a second groove, a third groove, a fourth groove and a fifth groove that match the sizes of the light diffuser, the light guide plate, the LED light strip, the reflector and the fixing plate; bolt connection holes are provided on the end faces on both sides of the long frames and at the corresponding positions of the short frames, and the long frames and the short frames are fixed by bolts.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] 1. The lamp monitors the light intensity around the lamp through the photosensitive element, and automatically adjusts the luminous power of the LED light strip according to the intensity of the external light, thereby providing users with a more comfortable lighting experience.

[0015] 2. The arc groove in the light guide plate can improve the coupling efficiency of the LED light strip. The array-distributed quadrangular pyramid grooves and hemispherical protrusions are used to change the direction of linear light and increase the scattering effect of light. The scattered light column is used to change the direction of the central parallel light, so that the central light is gradually scattered and the uniform light effect is improved. The light guide plate can disperse the light emitted by the LED light strip while improving the utilization rate of light energy, making the lighting of the entire lamp more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an exploded structure of a light intensity adaptive cleansing lamp provided by an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the assembly structure of a light intensity adaptive cleansing lamp provided by an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of a cross-sectional structure of a light intensity adaptive cleansing lamp provided by an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of an LED light strip in a light intensity adaptive cleansing lamp before and after assembly provided by an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of the structure of an upper light guide plate and a lower light guide plate in a light intensity adaptive cleansing lamp provided by one embodiment of the present invention;

[0021] Figure 6 A schematic diagram of the structure of a light guide plate and a light diffusion column in a light intensity adaptive cleansing lamp provided by an embodiment of the present invention;

[0022] Figure 7 A schematic cross-sectional structure diagram of a light guide plate and a light diffusion column after assembly in a light intensity adaptive cleansing lamp provided by an embodiment of the present invention;

[0023] Figure 8 A schematic diagram of the working principle of a scattered light column in a light intensity adaptive cleansing lamp provided by an embodiment of the present invention;

[0024] Fig. 9 A schematic structural diagram of a long frame of a light intensity adaptive cleansing lamp provided by an embodiment of the present invention.

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0027] like Figure 1-Figure 9As shown, an embodiment of the present invention provides a light intensity adaptive clean lamp, comprising: a light homogenizing plate 1, a light guide plate 2, an LED light strip 3, a reflector 4, a fixing plate 5, a frame 6, a photosensitive element 7 and a control module 8;

[0028] The light-diffusing plate 1, the light-guiding plate 2, the reflective plate 4, and the fixed plate 5 are all rectangular plates; the light-diffusing plate 1, the light-guiding plate 2, the reflective plate 4, and the fixed plate 5 are arranged in parallel from top to bottom; LED light strips 3 are arranged on both sides of the long side of the light-guiding plate 2; the frame 6 is arranged on the periphery of the light-diffusing plate 1, the light-guiding plate 2, the LED light strip 3, the reflective plate 4, and the fixed plate 5; the control module 8 is arranged on the outward side of the fixed plate 5; the photosensitive element 7 is arranged on the outer side of the frame 6, and the photosensitive element 7 is used to monitor the external light intensity;

[0029] The control module 8 is electrically connected to an external power source, the LED light strip 3 , and the photosensitive element 7 ; the control module 8 adaptively adjusts the luminous power of the LED light strip 3 according to the light intensity monitored by the photosensitive element 7 .

[0030] Optionally, the control module 8 is internally integrated with a wireless transceiver module, and an external terminal (mobile phone, remote control, etc.) can directly control the switch and luminous power of the lamp through the wireless transceiver module.

[0031] Optionally, the light guide plate 2 includes an upper light guide plate 21, a lower light guide plate 22 and a scattered light column 9; the upper light guide plate 21 and the lower light guide plate 22 can be spliced ​​into a rectangular plate (light guide plate 2); there are multiple scattered light columns 9, and the array is arranged between the upper light guide plate 21 and the lower light guide plate 22; the upper light guide plate 21, the lower light guide plate 22 and the scattered light column 9 are all made of transparent materials; the scattered light column 9 is a non-straight cylinder with straight ends and a concave middle part, and the concave direction is toward the side of the lower light guide plate 22; the lower side of the upper light guide plate 21 is provided with a first array groove matching the upper half of the scattered light column 9, and the upper side of the lower light guide plate 22 is provided with a second array groove matching the lower half of the scattered light column 9, and the groove formed after the first array groove and the second array groove are assembled is gap-matched with the scattered light column 9.

[0032] Optionally, the light guide plate 2 is provided with array-arranged arc grooves 23 on both sides facing the LED light strip 3, and the curved surface of the arc groove 23 matches the outer surface of the LED lamp beads in the LED light strip 3; the position of the arc groove 23 corresponds to the position of the LED lamp beads in the LED light strip 3; the light-incoming surface of the scattered light column 9 is located in the middle of the arc groove 23.

[0033] Optionally, an anti-reflection material (such as a high refractive index matching liquid, etc.) is provided between the arc groove 23 and the LED lamp bead.

[0034] Optionally, the light guide upper plate 21 is arranged on a side close to the reflective plate 4, and the light guide lower plate 22 is arranged on a side close to the light homogenizing plate 1; the outward side of the light guide upper plate 21 is provided with an array of four-sided pyramidal grooves 211; the outward side of the light guide lower plate 22 is provided with an array of transparent hemispherical protrusions 221.

[0035] Optionally, the vertical projection positions of the quadrangular pyramid groove 211, the hemispherical protrusion 221 and the astigmatism column 9 correspond to each other, or the vertical projection positions of the quadrangular pyramid groove 211, the hemispherical protrusion 221 and the astigmatism column 9 are staggered and do not overlap each other.

[0036] Optionally, the refractive index of the hemispherical protrusion 221 is greater than the refractive index of the light guide plate 2 .

[0037] Optionally, the refractive index of the light guide lower plate 22 is greater than the refractive index of the light guide upper plate 21 .

[0038] Optionally, the straight parts at both ends of the light guide column 9 are respectively provided with a first annular groove 91 , a second annular groove 92 , and a third annular groove 93 , and the concave part in the middle of the light guide column 9 is provided with an array annular groove 94 .

[0039] Optionally, the size of the first annular groove 91 is smaller than that of the second annular groove 92 , and the size of the second annular groove 92 is smaller than that of the third annular groove 93 ; the distance between the first annular groove 91 and the second annular groove 92 is smaller than the distance between the second annular groove 92 and the third annular groove 93 .

[0040] Optionally, the frame 6 includes long frames 61 on both sides and short frames 62 at both ends; the long frames 61 are respectively provided with a first groove 611, a second groove 612, a third groove 613, a fourth groove 614 and a fifth groove 615 whose sizes match the light homogenizing plate 1, the light guide plate 2, the LED light strip 3, the reflector 4 and the fixing plate 5; bolt connection holes 616 are provided on the end faces on both sides of the long frames 61 and the corresponding positions of the short frames 62, and the long frames 61 and the short frames 62 are fixed by bolts.

[0041] Optionally, the reflective plate 4 is provided with a reflective surface facing the light guide plate 2 , and the reflective surface is mirror-reflective silver.

[0042] Optionally, the long frame 61 and the short frame 62 are provided with wire grooves (not shown) to enable connection between the LED light strip 3 , the photosensitive element 7 and the control module 8 .

[0043] Optionally, the light guide plate 2 is a transparent acrylic plate, a glass plate, etc.

[0044] The assembly process of the clean lamp is: assemble the light guide plate 2 → assemble the LED light strip 3 and the light guide plate 2 → assemble each component to the long frame 61 on both sides → assemble the short frame 62 → fix the control module 8 → connect the wires.

[0045] Functions of the light guide plate 2: The arc groove 23 is set to improve the efficiency of the light entering the LED light strip into the light guide plate 2; the array-distributed quadrangular pyramid grooves 211 and hemispherical protrusions 221 are used to change the direction of linear light and increase the light scattering effect; the scattered light column 9 is used to change the direction of the central parallel light to prevent the loss of light energy caused by the contrast of the LED light strips on both sides; the first annular groove 91, the second annular groove 92, the third annular groove 93 and the array annular groove 94 in the scattered light column 9 are set so that the central light is gradually scattered and the uniform light effect is improved. The light guide plate can disperse the light emitted by the LED light strip while improving the utilization rate of light energy, making the lighting of the entire lamp more uniform.

[0046] When the light intensity adaptive cleansing lamp is working, the lamp monitors the light intensity around the lamp through the photosensitive element 7, and automatically adjusts the luminous power of the LED light strip 3 according to the strength of the external light intensity, thereby providing users with a more comfortable lighting experience.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A light intensity adaptive cleansing lamp, comprising: Light homogenizer, light guide plate, LED light strip, reflector, fixing plate, frame, photosensitive element and control module; The light-diffusing plate, the light-guiding plate, the reflective plate, and the fixed plate are all rectangular plates; the light-diffusing plate, the light-guiding plate, the reflective plate, and the fixed plate are arranged in parallel from top to bottom; LED light strips are arranged on both sides of the long side of the light-guiding plate; the frame is arranged around the light-diffusing plate, the light-guiding plate, the LED light strip, the reflective plate, and the fixed plate; the control module is arranged on the outward side of the fixed plate; the photosensitive element is arranged on the outside of the frame, and the photosensitive element is used to monitor the external light intensity; The control module is electrically connected to an external power source, the LED light strip and the photosensitive element; the control module adaptively adjusts the luminous power of the LED light strip according to the light intensity monitored by the photosensitive element.

2. The cleansing lamp according to claim 1, characterized in that: in, The light guide plate comprises an upper light guide plate, a lower light guide plate and a scattered light column; the upper light guide plate and the lower light guide plate can be spliced ​​into a rectangular plate; there are multiple scattered light columns and the scattered light columns are arranged in an array between the upper light guide plate and the lower light guide plate; the upper light guide plate, the lower light guide plate and the scattered light column are all made of transparent materials; the scattered light column is a non-straight cylinder with straight ends and a concave middle part, and the concave direction is toward the side of the lower light guide plate; the lower side of the upper light guide plate is provided with a first array groove matching the upper half of the scattered light column, and the upper side of the lower light guide plate is provided with a second array groove matching the lower half of the scattered light column, and the groove formed after the first array groove and the second array groove are assembled is matched with the gap of the scattered light column.

3. The clean lamp according to claim 2, characterized in that: in, The light guide plate is provided with arc grooves arranged in an array on both sides facing the LED light strip, the curved surface of the arc groove matches the outer surface of the LED lamp beads in the LED light strip; the position of the arc groove corresponds to the position of the LED lamp beads in the LED light strip; the light input surface of the scattered light column is located in the middle of the arc groove.

4. The cleansing lamp as claimed in claim 3, characterized in that: in, The upper light guide plate is arranged on a side close to the reflective plate, and the lower light guide plate is arranged on a side close to the light homogenizing plate; the outer side of the upper light guide plate is provided with array-distributed quadrangular pyramidal grooves; the outer side of the lower light guide plate is provided with array-distributed transparent hemispherical protrusions.

5. The cleansing lamp as claimed in claim 4, characterized in that: in, The vertical projection positions of the quadrangular pyramid groove, the hemispherical protrusion and the astigmatism column correspond to each other, or the vertical projection positions of the quadrangular pyramid groove, the hemispherical protrusion and the astigmatism column are staggered and do not overlap each other.

6. The clean lamp as claimed in claim 2, characterized in that: in, The straight parts at both ends of the light guide column are respectively provided with a first annular groove, a second annular groove, and a third annular groove, and the concave part in the middle of the light guide column is provided with an array of annular grooves.

7. The cleansing lamp according to claim 6, characterized in that: in, The size of the first annular groove is smaller than that of the second annular groove, and the size of the second annular groove is smaller than that of the third annular groove; the distance between the first annular groove and the second annular groove is smaller than the distance between the second annular groove and the third annular groove.

8. The cleansing lamp according to claim 1, characterized in that: in, The frame includes long frames on both sides and short frames at both ends; the long frames are respectively provided with a first groove, a second groove, a third groove, a fourth groove and a fifth groove that match the sizes of the light diffuser, the light guide plate, the LED light strip, the reflector and the fixing plate; bolt connection holes are provided on the end faces on both sides of the long frames and at the corresponding positions of the short frames, and the long frames and the short frames are fixed by bolts.

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