CN112672456A - Lighting apparatus - Google Patents
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- CN112672456A CN112672456A CN201910980168.6A CN201910980168A CN112672456A CN 112672456 A CN112672456 A CN 112672456A CN 201910980168 A CN201910980168 A CN 201910980168A CN 112672456 A CN112672456 A CN 112672456A
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Abstract
The invention provides a lighting apparatus, which can ensure that even though the thickness of a power supply box body of the lighting apparatus is configured to be relatively thick, optical signals which come from more directions and have enough strength to meet the control requirement can be received by a light-transmitting structure with relatively small size, and the control requirement and the miniaturization requirement of the lighting apparatus are met. The present invention provides a lighting apparatus including: a light-transmitting structure; the optical signal receiving part is arranged on the substrate, and the arrangement position of the optical signal receiving part corresponds to the light-transmitting structure so as to receive an optical signal from the outside; and a partition wall constituting an optical chamber together with the optical signal receiving portion, the optical signal receiving portion being disposed at one end of the optical chamber, facing and spaced apart from the light transmitting structure, and being at least partially surrounded by the partition wall and disposed within the optical chamber.
Description
Technical Field
The invention relates to the field of illumination, in particular to an illumination appliance with improved optical signal receiving capability, in particular infrared signal receiving capability.
Background
In order to implement more diversified control of a lighting apparatus at low cost and with ease, a conventional lighting apparatus, for example, an LED lamp, can implement not only basic on-off control using a wall switch but also dimming control of parameters such as brightness and color temperature using some remote controller having directivity.
Conventionally, in order to meet wiring requirements at a lamp end, a signal receiving portion of a lighting fixture, for example, an infrared receiving portion, is generally provided in a space formed of a non-transparent material, for example, in a power supply box of the lighting fixture, together with other electric parts.
The infrared signal that infrared remote controller sent only needs to see through the printing opacity structure on the power supply box, just can be received by the infrared ray receiving part in the power supply box. However, in some cases, the electrical components inside the power supply box may have certain requirements on the thickness of the power supply box, if the size of the light-transmitting structure is small, the intensity of the infrared rays penetrating into the power supply box is weak, and the penetrated infrared rays are also easily dissipated during transmission inside the power supply box and are finally difficult to be detected by the infrared receiving part, which causes the problem that the operation of the infrared remote controller is insensitive.
Therefore, it is highly desirable to provide a structural design of a power supply box portion of a lighting device, which can ensure a smaller size of a light-transmitting structure on a thicker power supply box to ensure a better infrared receiving sensitivity and meet the actual requirements, thereby further meeting the miniaturization requirements of the power supply box.
Disclosure of Invention
In view of the above problems of the prior art, the present invention provides a lighting fixture capable of enhancing a signal receiving effect of a signal receiving section.
The present invention provides a lighting apparatus including: a light-transmitting structure; the signal receiving part faces the light-transmitting structure and is arranged at an interval with the light-transmitting structure so as to receive an optical signal from the outside; an optical chamber having a partition wall, a signal receiving portion disposed at one end of the optical chamber, the signal receiving portion being at least partially surrounded by the partition wall and disposed within the optical chamber.
Because the partition walls are arranged around the signal receiving part, the optical signals can be restrained in a relatively small space to be reflected and transmitted, the attenuation and absorption of the optical signals in the process from entering the light-transmitting structure to reaching the signal receiving part are reduced, and the signal receiving effect of the signal receiving part is effectively improved.
In a preferred embodiment of the present invention, the lighting apparatus further includes: the power supply box body, light-transmitting structure set up in the one end of power supply box body, the base plate set up in the power supply box body is kept away from light-transmitting structure's the other end.
Because of the requirement of wiring, insulation, etc., the signal receiving part, such as an infrared receiving part, is usually disposed inside the power supply box, and the power supply box is usually made of metal, such as aluminum, so that it has a certain blocking effect on the optical signal, and in order to enhance the receiving intensity of the optical signal and provide more receiving angles, a light-transmitting structure for the optical signal to pass through is usually opened on the power supply box. However, in order to satisfy the requirements of the optical signal receiving strength and the angle range, the distance between the infrared receiving part and the light-transmitting structure should not be too narrow, and the size of the light-transmitting structure itself should not be made very small, which makes it difficult to achieve the size reduction of the power supply box in the horizontal cross-section direction, in other words, there is a certain degree of mutual restriction between the size of the light-transmitting structure and the distance between the signal receiving part and the light-transmitting structure, and the signal receiving effect. By using the better technical scheme, because the partition wall is arranged around the signal receiving part, the distance from the signal receiving part to the light-transmitting structure, the size of the light-transmitting structure and the mutual restriction effect of the signal receiving effect can be effectively relieved. Experiments prove that under the conditions that the distances between some signal receiving parts and the light-transmitting structures are large and the sizes of the light-transmitting structures are small, the optical signals with the strength meeting the control requirements can be still received by utilizing the signal enhancement effect of the partition walls.
In a preferred embodiment of the present invention, the near infrared reflectance of the inner surface of the partition wall is greater than 30%.
In the preferred technical scheme of the invention, the inner surface of the partition wall is an infrared reflecting mirror surface, or the partition wall is made of plastic or metal material capable of reflecting infrared, or the inner surface of the partition wall is coated with an infrared reflecting coating.
In a preferred embodiment of the present invention, the first end of the partition wall is connected to the substrate. Through making the tip and the base plate of next door link to each other, can form the more confined space relatively that surrounds infrared ray receiving part in infrared ray receiving part periphery, and then make infrared ray in this more confined limited space relatively, through less reflection number of times, reach infrared ray receiving part department, reduce infrared ray in the transmission process, especially absorption and dissipation in interface department, effectively improve infrared ray signal's receiving effect.
In the preferred technical scheme of the invention, the surface of the partition wall is provided with an infrared reflection increasing film layer. An infrared reflection increasing film layer is provided (for example, attached) on the surface of the partition wall, and the signal reception intensity of the infrared receiving section can be effectively improved.
In a preferred embodiment of the present invention, the second end of the partition is connected to the outer edge of the light-transmitting structure. Through making another tip on next door be connected with light-transmitting structure's outer fringe, can form a space more closed relatively in light-transmitting structure department, the next door structure that centers on of cooperation infrared ray receiving portion department can effectively form the relative confined passageway of light transmission from light-transmitting structure department to infrared ray receiving portion department, prevents that light from leaking to other regions in the power supply box, effectively improves infrared ray's signal reception effect.
In a preferred technical scheme of the invention, the distance H between the light-transmitting structure and the infrared receiving part is 10-30 mm. Experimental results further show that the partition wall structure (and the structure of the partition wall structure in cooperation with the infrared reflection increasing film layer) provided in some technical schemes of the invention has a significant improvement effect on the infrared signal receiving intensity under the condition that the thickness of the power supply box body is relatively thick (particularly, the distance H between the light-transmitting structure and the infrared receiving part is 10-30 mm).
In the preferred technical scheme of the invention, the light-transmitting structure is a circular perforated area, and the outer diameter of the circular perforated area is 5-6 mm. Experimental results further show that the partition wall structure (and the structure of the partition wall structure matched with the infrared reflection increasing film layer) provided by some technical schemes of the invention has obvious improvement effect on the infrared signal receiving intensity under the condition that the size of the light-transmitting structure is smaller (especially the condition that a circular opening area is used and the outer diameter size of the circular opening area is in the range of 5-6 mm).
In the preferred technical scheme of the invention, the through hole is an oval or rectangular through hole or a long-strip-shaped slit, and the maximum characteristic length of the light-transmitting structure is 5-6 mm. The maximum characteristic length is the length between two points at which the through parts of the light-transmitting structure are most distant from each other, and may be, for example, the length of the major axis of the oval through hole, the length of the diagonal line of the rectangular through hole, or the length of the elongated slit.
In a preferred embodiment of the present invention, the signal receiving portion is disposed opposite to the light-transmitting structure. The signal receiving part and the light-transmitting structure which are arranged oppositely can effectively shorten the distance required by an optical signal entering from the light-transmitting structure to reach the signal receiving part, thereby improving the signal receiving effect of the signal receiving part; meanwhile, the structure arranged oppositely can facilitate the arrangement of the partition wall between the two, and further improve the convenience of manufacturing and assembling the device.
In the preferred technical scheme of the invention, the power supply box body is made of metal materials.
In a preferred embodiment of the present invention, the distance from the inner surface of the partition wall to the infrared ray receiving section is 1 to 15 mm.
Drawings
FIG. 1 is a schematic structural diagram of a power supply box in the prior art;
FIG. 2 is a schematic structural diagram of an infrared receiving-related part of a lighting fixture according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of an infrared signal propagation path of the power supply housing of the embodiment of FIG. 2;
fig. 4 is a schematic structural view of an infrared receiving-related part of a lighting fixture according to a second embodiment of the present invention;
fig. 5 is a curve relation of the infrared signal receiving effect of the structure according to the second embodiment with changes of H and Φ;
FIG. 6 is a comparison graph of the value ranges of (phi, H) satisfying the requirement of the infrared signal receiving effect under two conditions of no partition wall and the existence of the partition wall;
FIG. 7 is a schematic diagram of the structure of the infrared receiving related part of a lighting fixture according to some embodiments of the present invention;
fig. 8 is a schematic structural view of an infrared receiving-related part of a lighting fixture according to another embodiment of the present invention.
1. A power supply box body; 1a, a front plate; 1b, a back plate; 1c, side plates; 2. an infrared ray receiving section; 3. a light-transmitting structure; 4-1, 4-2, a partition wall; 5. an infrared reflection increasing film layer; 6. a substrate; 7. an optical chamber.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be modified as needed by those skilled in the art to suit particular applications.
It should be noted that in the description of the preferred embodiments of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the apparatus or components must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As described in the background art, there are certain mutual constraints between the miniaturization of the structural design of the power supply box of the conventional lighting apparatus and the control sensitivity of the infrared signal reception intensity. Referring to fig. 1, the conventional lighting fixture includes a lamp having a light source portion (not shown) that emits illumination light, a power supply portion (not shown) that is electrically connected to the light source portion to supply power for lighting the light source portion, and a power supply case 1 that accommodates the power supply portion.
The power supply box 1 is composed of a front plate 1a, a back plate 1b and side plates 1c, and an infrared receiving part 2, i.e. a signal receiving part in some embodiments, is located in the power supply box 1 and is fixedly connected with the back plate 1 b. The front plate 1a of the power supply box body 1 is provided with a light-transmitting structure 3 for the infrared signal received by the infrared receiving part 2 to pass through. The position where the light transmitting structure 3 is provided corresponds to the position of the infrared receiving section 2, and when the power supply case 1 is viewed toward the surface (front plate 1a) on which the light transmitting structure 3 is formed, the light transmitting structure 3 is located at a position overlapping the infrared receiving section 2. In some embodiments, the light-transmitting structure 3 of the lighting apparatus is configured as a through hole array having a plurality of circular through holes, the through hole array is also circular as a whole, and in order to ensure that the infrared signal receiving intensity can meet the requirement, the diameter Φ of the circular through hole array adopted by the light-transmitting structure 3 generally needs to be 10-30 mm. The structure is not only not beautiful, but also the miniaturization of the structures of the light-transmitting structure 3 and the power supply box body 1 and the requirement of the infrared signal receiving intensity are mutually restricted, and the design freedom degree is lower.
Implementation mode one
In order to solve or alleviate among the present lighting apparatus, the size of dimension (the cross sectional dimension along the horizontal direction) Φ of light-transmitting structure 3, the thickness of power supply box 1 (being roughly equal to the distance between infrared receiving portion 2 and light-transmitting structure 3) H and the mutual restriction effect of infrared signal received intensity, compromise the miniaturization requirement and the sensitivity requirement of infrared control of lighting apparatus, this embodiment provides a lighting apparatus, refer to fig. 2, power supply box 1 is whole and is roughly the cuboid structure, the one side towards the user when the installation is accomplished is front bezel 1a, the one side that deviates from the user is backplate 1b, the shell structure between front bezel 1a and backplate 1b is curb plate 1 c. The front plate 1a of the power supply box body 1 is provided with a light-transmitting structure 3, and the light-transmitting structure 3 can be an opening structure or a sealing structure formed by a material transparent to infrared rays so as to allow infrared signals to pass through.
The substrate 6 is a PCB (Printed Circuit Board) Board, and is fixed in contact with the back plate 1b, and the Circuit structure such as a dimming Circuit of the lighting fixture and the infrared ray receiving unit 2 are formed on the substrate 6. The position where the infrared receiving section 2 is provided corresponds to the position of the light transmitting structure 3, and when the power supply case 1 is viewed toward the surface (front plate 1a) on which the light transmitting structure 3 is formed, the light transmitting structure 3 is located at a position overlapping the infrared receiving section 2.
The substrate 6 and various components on the substrate 6 are manufactured by utilizing a PCB process, so that the sizes of components such as the driving power supply, the infrared receiving part 2 and the like can be effectively reduced, and the miniaturization design of the power supply box body 1 is facilitated. The PCB is arranged close to the back of the power supply box body 1, so that the heat dissipation effect of the electric parts can be improved, and the influence of the heating behavior of the light source part on the electric parts is reduced.
The lighting apparatus is provided with a partition wall 4-1 surrounding the infrared ray receiving section 2 inside the power supply case 1.
The partition wall 4-1 is integrally in a ring shape surrounding the infrared receiving part 2, one end (upper end in fig. 2) is fixed to the base plate 6, the other end (lower end in fig. 2) is in a gradually opened open shape from top to bottom, and the open area corresponds to an area where the light transmitting structure is arranged on the front plate of the power supply box body 1 to receive infrared signals from different directions. The partition wall 4-1 surrounds the infrared receiving part 2, and the inner surface of the partition wall, together with the light-transmitting structure 3 and the substrate 6, forms a semi-closed partial space, namely an optical chamber 7, the infrared receiving part 2 is located in the optical chamber 7, once the infrared signal enters the optical chamber 7 through the light-transmitting structure 3, the infrared signal is converged toward the infrared receiving part 2 with the help of reflection on the inner surface of the partition wall 4-1, and thus can be received by the infrared receiving part 2 more probably.
A first end of the partition wall 4-1, i.e., an upper end of the partition wall 4-1, is connected to the base plate 6 so that the optical chamber 7 partitioned by the partition wall 4-1 is relatively closed at an end thereof disposed around the infrared ray receiving part 2. Once the optical signal enters the relatively closed space, the optical signal is constrained in the space to a certain extent, so that convergence to the infrared receiving part 2 to a certain extent is generated, and the signal receiving effect of the infrared receiving part 2 is improved.
The inner side surface of the partition wall 4-1 can be selected to be a matte surface or a mirror surface according to actual conditions, and an infrared reflection increasing film can be further attached to the inner side surface with common infrared reflection capability so as to enhance the reflection effect of the infrared reflection increasing film on infrared rays, so that the infrared rays in the optical chamber 7 are not easy to dissipate due to surface absorption, and the infrared receiving effect of the infrared receiving part 2 is further improved.
To further explain the enhancement effect of the partition wall 4-1 structure provided in this embodiment on the received intensity of the infrared signal, with reference to fig. 3, when the infrared ray incident at a certain angle and in an oblique direction passes through the light-transmitting structure 3 and enters the inside of the power supply box 1, as shown by the dotted line portion of the infrared ray in fig. 3, the infrared ray will be irradiated on the substrate 6 and further reflected and diffused to the outside of the substrate 6, as for the case where the existing partition wall 4-1 structure is not provided. Because the types of components contained in the power supply box are more, infrared rays are likely to be gradually absorbed and dissipated in the transmission process, and are finally difficult to be received by the infrared ray receiving part 2.
In the present embodiment, the partition wall 4-1 provided around the infrared ray receiving unit 2 and relatively adjacent to the infrared ray receiving unit 2 is added, and the partition wall 4-1 can block the propagation of the infrared ray signal to the outside of the power supply box 1 (in the direction away from the infrared ray receiving unit 2) to some extent, and converge the infrared ray signal to the position of the infrared ray receiving unit 2.
Through the mode, the proportion that infrared rays entering the power supply box body 1 can be received by the infrared receiving part 2 can be improved by utilizing the additionally arranged partition wall 4-1, the infrared receiving part 2 can receive infrared signals from a larger incident angle range, and the infrared receiving part 2 can still maintain the signal receiving effect meeting the requirements along with the increase of the thickness H of the power supply box body 1 and the reduction of the size of the light-transmitting structure 3.
Second embodiment
In the second embodiment of the present invention, the basic structure and principle are the same as those of the first embodiment, and the parts using the same reference numerals are completely the same, and are not described again here.
Referring to fig. 4, the second embodiment provides another partition wall structure, i.e., a partition wall 4-2, the partition wall 4-2 has a first end (upper end) connected to the base plate 6 and a second end (lower end) connected to the outer edge of the light transmitting structure 3 on the front plate 1a, and has a cylindrical shape as a whole.
Note that the "outer edge" of the light-transmitting structure 3 is intended to be limited to the outer edge of a portion that can substantially transmit light, for example, the edge of a through hole, or the edge of the outermost through hole of the through hole array, or the portion of the front plate 1a that is made of a light-transmitting material, and is not intended to refer to the entire outer edge of the front plate 1a including the opaque portion.
In addition, since the first end of the partition wall 4-2 is connected to the substrate 6 and the second end is connected to the outer edge of the light-transmitting structure 3, the infrared ray will be in the optical chamber 7, which is a semi-closed local space formed by the partition wall 4-2, the light-transmitting structure 3 and the substrate 6, once entering the interior of the power supply box 1 from the light-transmitting structure 3. Because the cross-sectional dimension of the light-transmitting structure 3 is small, the cross-sectional dimension and the volume of the partition wall 4-2 connected with the light-transmitting structure are small compared with the power supply box body 1, so that infrared rays can be received by the infrared receiving part 2 through reflection for a small number of times, absorption and dissipation caused by back-and-forth reflection of infrared rays in a large space in the transmission process are effectively reduced, the receiving intensity of infrared signals is improved, and even if infrared rays are injected at a large incident angle, the size of a local space surrounding the infrared receiving part 2 is small, and in the embodiment, the partition wall 4-2 can generate diffuse reflection to a certain degree, so that the infrared rays injected at a large incident angle can still be received by the infrared receiving part 2 at a large signal intensity by utilizing the advantages that a reflection point is adjacent to the infrared receiving part 2, the characteristics that the size of the local space is relatively small and the transmission distance of the infrared rays is also relatively small Therefore, the sensitivity of the infrared receiving part 2 for receiving infrared control signals from various directions is effectively improved.
Although the entire partition wall 4-2 is configured to have a substantially cylindrical shape in the present embodiment, the alternative form of the partition wall 4-2 is not limited to this, and in some embodiments, the partition wall 4-2 may be configured to have a square cylindrical shape, a cup shape (for example, an inner wall having an arc shape, a bezier arc shape, or the like), or any other suitable shape as needed, as long as a relatively closed partial space can be formed as an optical chamber to increase the probability that the infrared signal is received by the infrared receiving section 2.
From another perspective, in the present embodiment, the optical cavity 7, which is formed by the partition wall 4-2, the light-transmitting structure 3, and the substrate 6 on which the infrared receiving portion 2 is located, can be understood as a light-guiding channel that extends from the light-transmitting structure 3 to the infrared receiving portion 2 and has guiding and converging effects on the propagation of infrared rays, so as to effectively improve the receiving effect of infrared signals.
In order to further verify the improvement of the signal receiving effect by the combination of the power supply box 1 and the partition wall 4-2 provided in the present embodiment, the inventors confirmed the above effects by comparing the experimental and simulation results, and found that the improvement of the signal receiving effect is particularly significant in the case where the size (diameter Φ) of the light-transmitting structure 3 is small and the thickness H of the power supply box 1 is large, and specific experimental results and data analysis are as follows:
first, it was measured under the initial experimental conditions that the infrared receiving unit 2 on the bare substrate 6 can receive 928 units of optical signal energy, and the units of optical signal energy were normalized.
[ COMPARATIVE EXAMPLES ]
The substrate 6 was placed in the power supply case 2 of the conventional lighting apparatus, and the infrared ray reception conditions corresponding to the sizes (diameters Φ) of the different light-transmitting structures 3 were obtained through experimental measurement for the case where the thickness H of the power supply case was 20mm, the case wall thickness was 1mm, and no partition wall was present, as shown in table 1.
TABLE 1 reception effect of infrared ray signal-thickness 20mm, no partition wall
| Diameter phi/mm | Thickness H/mm | Partition wall | Energy of |
| 2 | 20 | Is free of | 0 |
| 6 | 20 | Is free of | 0 |
| 10 | 20 | Is free of | 0 |
| 30 | 20 | Is free of | 8 |
| 50 | 20 | Is free of | 63 |
| 70 | 20 | Is free of | 192 |
In the case where the thickness H of the conventional power supply case is 10mm, the case wall thickness is 1mm, and no partition wall exists, infrared ray reception data corresponding to the size (diameter Φ) of the different light-transmitting structures 3 was obtained through further experimental measurement, as shown in table 2.
TABLE 2 Infrared ray signal receiving effect-thickness 10mm, no partition wall
| Diameter phi/mm | Thickness H/mm | Partition wall | Energy of |
| 2 | 10 | Is free of | 0 |
| 6 | 10 | Is free of | 30 |
| 10 | 10 | Is free of | 158 |
| 30 | 10 | Is free of | 411 |
| 50 | 10 | Is free of | 444 |
| 70 | 10 | Is free of | 477 |
The substrate 6 was placed in the power supply case 2 of the lighting apparatus according to the second embodiment, and infrared ray reception data corresponding to the dimensions (diameter Φ) of the light transmitting structures 3 were obtained by simulation under the experimental conditions shown in tables 1 and 2 for the case where the thickness H of the power supply case was 20mm, the case wall thickness was 1mm, and the partition wall 4-2 was present, as shown in table 3.
TABLE 3 reception effect of infrared ray signal-thickness 20mm, with partition wall
| Diameter phi/mm | Thickness H/mm | Partition wall | Energy of |
| 2 | 20 | Is provided with | 6 |
| 6 | 20 | Is provided with | 130 |
| 10 | 20 | Is provided with | 241 |
| 30 | 20 | Is provided with | 302 |
| 50 | 20 | Is provided with | 387 |
| 70 | 20 | Is provided with | 419 |
The thickness H of the power supply case was 10mm or 30mm, and the simulation data in the case of the partition wall is further shown in tables 4 and 5.
TABLE 4 reception effect of infrared ray signal-thickness 10mm, with partition wall
| Diameter phi/mm | Thickness H/mm | Partition wall | Energy of |
| 2 | 10 | Is provided with | 35 |
| 6 | 10 | Is provided with | 376 |
| 10 | 10 | Is provided with | 438 |
| 30 | 10 | Is provided with | 612 |
| 50 | 10 | Is provided with | 555 |
| 70 | 10 | Is provided with | 574 |
TABLE 5 reception effect of infrared ray signal-thickness 30mm with partition wall
| Diameter phi/mm | Thickness H/mm | Partition wall | Energy of |
| 2 | 30 | Is provided with | 0 |
| 6 | 30 | Is provided with | 74 |
| 10 | 30 | Is provided with | 151 |
| 30 | 30 | Is provided with | 287 |
| 50 | 30 | Is provided with | 316 |
| 70 | 30 | Is provided with | 358 |
Comparing the data in tables 1 and 3, and tables 2 and 4, it can be seen that the infrared signal receiving effect can be greatly improved by the provision of the partition wall 4-2 for the power supply case 2 having the same thickness. In addition, in the case where the thickness is large (for example, H is 30mm) and the opening size is small (for example, Φ is 6mm), the signal receiving effect of the infrared ray receiving section 2 can be secured by adding the partition wall 4-2.
Fig. 5 is a summary of data in tables 1 to 5, and it can be further seen from fig. 5 that the addition of the partition wall 4-2 can greatly improve the signal receiving effect of the infrared receiving part 2 on the one hand, and can greatly reduce the size of the light-transmitting structure 3 with the signal receiving effect meeting the requirement on the other hand. For example, for a lighting apparatus with H ═ 20mm without the partition wall 4-2, it cannot receive infrared signals in the initial range, for example, the range where the diameter of the light-transmitting structure Φ is equal to 2-10mm, the light-transmitting structure 3 can basically meet the sensitivity requirement of use only in the size range of 30mm or more, and after the partition wall 4-2 is added, the light-transmitting structure 3 with the diameter of 2-6mm can meet the requirement of use only; for example, in a lighting fixture having no partition wall 4-2 and having H of 10mm, the light-transmitting structure 3 can basically meet the sensitivity requirement for use only in a size range of 6mm or more, and the light-transmitting structure 3 having a diameter of 2mm or less can also meet the sensitivity requirement after the partition wall 4-2 is added. Therefore, by additionally arranging the partition wall 4-2, the mutual restriction among the infrared signal receiving effect, the size phi of the light-transmitting structure and the thickness H of the power supply box body can be greatly reduced.
Fig. 6 further shows the constraint relationship between the size Φ of the light-transmitting structure and the thickness H of the power supply box, which meets the requirement of infrared signal receiving effect. In the boundary curve in the case where the partition wall 4-2 is not present, the range on the left side of the curve (i.e., the region indicated by the slash) is a range of (Φ, H) values that can satisfy the infrared signal reception effect. For the case of adding the partition wall 4-2, the left side of the boundary curve covers a larger value range of (Φ, H), that is, the value of (Φ, H) in the range of the area covered by the slash and the area covered by the grid shown in fig. 6 can both satisfy the infrared signal receiving effect. Moreover, as can be seen from the curve corresponding to the structure with the partition wall 4-2 in fig. 6, the technical solution in the second embodiment can effectively improve the infrared receiving effect of the power supply box with the thickness H between 10mm and 30mm and the diameter Φ of the light-transmitting structure 3 between 5mm and 6mm, so that the requirement of sensitivity is satisfied, and the improvement effect of the infrared receiving effect is more obvious for the thicker the power supply box is.
In addition, although the lighting apparatus of the present invention has been described in the first and second embodiments by taking a circular through hole or an array of circular through holes as an example, in other embodiments of the present invention, the through holes may be arranged as an elliptical, rectangular through hole, a long slit, or any other suitable penetrating structure. In case the light-transmitting structure 3 is a circular through-hole or an array of circular through-holes, the improvement of the infrared reception effect with a diameter Φ between 5-6mm is significant, and similarly, for a profiled through-hole with a maximum characteristic length of 5-6mm, such an improvement effect can basically be equally applicable. The maximum characteristic length is the length between two points at which the through parts of the light-transmitting structure are most distant from each other, and may be, for example, the length of the major axis of the oval through hole, the length of the diagonal line of the rectangular through hole, or the length of the elongated slit.
In the simulation experiment of the second embodiment, the light-transmitting structure 3 is a region (circular opening region) formed by arranging a plurality of circular through holes and having a circular overall shape, and modeling of the light-transmitting structures 3 of different sizes (diameters Φ) is realized by increasing or decreasing the through hole array in equal proportion.
In order to further ensure that the change of the optical signal energy is not caused by the aperture change of the single through hole, the inventor further obtains the influence of the aperture change of the single through hole on the optical signal energy under the condition of the same total open area through simulation experiments.
The total area of the light-transmitting structure 3 is kept constant (706.5 mm) with a housing wall thickness of 1mm, a thickness H of 20mm, and a diameter Φ of 30mm2) The open area is also kept constant (353.25 mm)2) The simulation was performed under the dimensional condition that the lower end of the partition was connected to the outer edge of the light-transmitting structure 3, that is, the diameter of the partition was also 30mm, and the results shown in table 6 were obtained.
TABLE 6 Effect of Single Aperture on reception
| Pore diameter of single opening (mm) | Energy of |
| 3 | 366 |
| 2.5 | 347 |
| 2 | 332 |
| 1.5 | 309 |
| 1 | 309 |
The simulation results show that the larger the aperture of a single open pore is, the better the receiving effect is, and the smaller the aperture is to a certain extent, the receiving effect is hardly affected.
In this embodiment, the inner wall of the partition wall 4-2 is made of a reflective material having strong reflection and weak absorption for infrared rays, and in some embodiments, a reflective layer having strong reflection and weak absorption for infrared rays may be additionally provided on the inner wall by means of adhesion, plating, or the like, to enhance the guiding effect of the inner surface thereof for infrared rays, for example, referring to fig. 7, in some embodiments, the inner surface of the partition wall 4-2, i.e., the surface close to the infrared ray receiving part 2 and the light transmitting structure 3, may be additionally provided with an infrared reflection increasing film layer 5 capable of increasing the reflection performance of infrared rays at the interface.
The term "infrared reflection increasing film" refers to a film capable of relatively increasing the intensity of reflected light of infrared rays at an interface, and the infrared reflection increasing film may be an optical film for realizing reflection increasing effect by using the principle of thin film interference of light, a strong reflection coating with stronger reflection performance to infrared rays compared with a base layer, or any composite layer or surface structure capable of improving the reflection performance to infrared rays. The term "reflective" may include specular, diffuse, and combinations of specular and diffuse.
In some embodiments, the signal receiving portion may refer to the whole electrical element for receiving the optical signal, such as the infrared receiving portion 2 in this embodiment, while in other embodiments, the signal receiving portion may also refer to a part of the electrical element for receiving the optical signal, such as an infrared receiving head located at an end of the infrared receiving portion 2. In addition, in some embodiments of the present invention, the "optical chamber" is a space for generating a converging action on light incident through the light-transmitting structure toward the signal receiving portion by using at least reflection of the partition wall, and the partition wall and the signal receiving portion are configured as the "optical chamber", and it is not required that all boundaries of the optical chamber 7 are configured by the partition wall, and it is sufficient that at least a part of inner surfaces of the partition wall constitutes boundaries of the optical chamber 7 and the signal receiving portion is located at one end of the optical chamber 7. For example, in some embodiments, the boundary of the optical chamber 7 includes the inner surface of the partition wall and both end surfaces of the partition wall formed at both axial ends. One end face of the infrared receiving head is closed, and the end face can be only a part of the substrate (as shown in FIG. 7) or can also comprise a part of the back plate (as shown in FIG. 8); or simply a support for the infrared receiving head. The other end can be connected with the light-transmitting structure, and is a half-open structure (as shown in figure 7); or not connected with the light-transmitting structure, and is a completely open structure opposite to the light-transmitting structure (as shown in FIG. 8); in some embodiments, the end surface carrying the infrared receiving head may also be inclined or perpendicular to the plane of the light-transmitting structure, for example, at a side wall of the power supply box, as long as the infrared receiving head can receive the optical signal incident from the light-transmitting structure.
In the present embodiment, the distance between the infrared ray receiving part 2 and the inner surface of the partition, or the distance between the inner surface of the partition (the joint between the partition and the substrate 6 or the back plate 1b, or the inner edge where the horizontal plane on which the infrared ray receiving part 2 is located intersects with the inner surface of the partition) and the infrared ray receiving part 2 is 0.5 to 25mm, preferably 1 to 15mm, and more preferably 2.5 to 3 mm; for example, the partition wall has a circular shape in a cross-sectional view in the horizontal direction thereof, and the circular shape has an inner diameter of 1 to 50mm, preferably 2 to 30mm, and more preferably 5 to 6 mm. In some embodiments, the partition walls may also be configured in other centrosymmetric, rotationally symmetric, or any suitable type of pattern along their horizontal cross-sectional direction, such as oval, diamond, rectangular, or square, etc. The infrared ray receiving section is disposed substantially at the center of symmetry or the center of rotation of the partition wall. In these embodiments, the inner diameter size range of the circle may be adjusted accordingly to describe the characteristic size of the figures, such as the length of the major axis of the ellipse, the length of the diagonal of the rectangle, etc. Simple variations of the above cross-sectional shapes are within the scope of the present invention without departing from the spirit of the present invention. In some embodiments, for the case where the inner diameter of the partition wall is less than 3mm, the partition wall may also be disposed in close proximity to the infrared receiving head of the infrared receiving part, for example, attached to a support portion of the infrared receiving head.
Although in some embodiments of the present invention, the power supply box 1 is used as a member or device for blocking reception of infrared signals of the lighting apparatus, in some lighting apparatuses in which the power supply box 1 is not provided or in which the power supply box 1 having another shape is disposed, any member or device having a blocking function against infrared signals may be improved by using the technical features of the present invention, for example, the light transmitting structure 3 may be provided near the front end light emitting surface and the substrate 6 and the infrared receiving portion 2 may be improved at the rear end by using a partition wall structure.
Although the signal receiving unit is exemplified by the infrared receiving unit 2 in the present embodiment, in another embodiment of the present invention, the signal receiving unit may be a lifi (light fidelity) signal receiving unit or any other suitable optical signal receiving unit.
In the above embodiments of the present invention, the light-transmitting structure is exemplified by a through hole array composed of a single hole or a plurality of through holes, but the present invention is not limited thereto, and the light-transmitting structure of the present invention may be a light-transmitting structure without an opening, for example, a surface formed of a resin material with high light transmittance. The surface shape portion having a high transmittance is not particularly limited, and may be circular, groove-shaped, rectangular, triangular, or the like, or may be a combination of various shapes.
So far, the technical solutions of the present invention have been described with reference to the accompanying drawings, but it is obvious to those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A lighting fixture, comprising:
a light-transmitting structure;
the substrate is provided with a signal receiving part, and the signal receiving part faces to the light-transmitting structure and is arranged at an interval with the light-transmitting structure so as to receive an optical signal from the outside;
an optical chamber having a partition wall, the signal receiving portion being disposed at one end of the optical chamber, the signal receiving portion being at least partially surrounded by the partition wall and disposed within the optical chamber.
2. The lighting apparatus of claim 1, further comprising:
the power supply box body, the light-transmitting structure set up in the one end of power supply box body, the base plate set up in the power supply box body is kept away from the other end of light-transmitting structure.
3. The lighting apparatus according to claim 1 or 2, wherein the inner surface of the partition is an optical signal reflecting mirror surface, or the partition is made of a plastic or metal material capable of reflecting an optical signal, or the inner surface of the partition is coated with an optical signal reflecting coating.
4. The lighting apparatus of claim 3, wherein the optical signal reflectivity of the inner surface of the bulkhead is greater than 30%.
5. The lighting apparatus of claim 1, wherein a first end of the partition is connected to the base plate.
6. The lighting apparatus according to claim 3, wherein an optical signal reflection increasing film is provided on an inner surface of the partition.
7. The lighting apparatus of any one of claims 1-2, 4, wherein the second end of the partition is connected to an outer edge of the light transmissive structure.
8. The lighting apparatus according to claim 1, wherein the signal receiving portion is disposed opposite to the light transmitting structure.
9. The lighting apparatus according to claim 1 or 2, wherein the signal receiving portion is an infrared signal receiving portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910980168.6A CN112672456A (en) | 2019-10-15 | 2019-10-15 | Lighting apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910980168.6A CN112672456A (en) | 2019-10-15 | 2019-10-15 | Lighting apparatus |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986016A (en) * | 2009-07-28 | 2011-03-16 | 松下电工株式会社 | Illumination fixture |
| JP2012195270A (en) * | 2011-02-28 | 2012-10-11 | Panasonic Corp | Lighting fixture |
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2019
- 2019-10-15 CN CN201910980168.6A patent/CN112672456A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986016A (en) * | 2009-07-28 | 2011-03-16 | 松下电工株式会社 | Illumination fixture |
| JP2012195270A (en) * | 2011-02-28 | 2012-10-11 | Panasonic Corp | Lighting fixture |
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