Light-sensing sensor, lighting fixture and use method

Abstract

The present application relates to the technical field of lighting fixtures, and specifically relates to a light-sensing sensor, a lighting fixture and a use method. The light-sensing sensor comprises a condensing lens, a light sensor and a housing; the housing is provided with an accommodating space; the housing is provided with a through hole; the condensing lens and the light sensor are each fixedly arranged within the accommodating space of the housing; a portion of the condensing lens is provided within the through hole; the condensing lens and the light sensor are arranged corresponding to each other; the condensing lens is used for collecting light outside the housing, and the light sensor is used for sensing a change in the light collected by the condensing lens. The present application provides the light-sensing sensor, the lighting fixture and the use method to solve the problem of existing sensors that a light-collecting element and a sensing element are respectively fixed by means of two components during a design process, and during later assembly and use, an installation error between the two leads to inaccurate positioning between the light-collecting element and the sensing element, which affects the use performance of the sensors and results in poor experience.

Description

A light sensor, a lamp and its usage method

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411962103.6, filed on December 27, 2024, entitled "A Light Sensor, a Lamp and a Method of Using It", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of lighting technology, specifically to a light sensor, a lighting fixture, and a method of using it. Background Technology

[0004] As people's living standards improve and the concept of green environmental protection deepens, families are placing higher demands on lighting fixtures, hoping to maximize electricity savings while ensuring normal use, thus aligning with the principles of green environmental protection. Furthermore, with the advent of modern home systems, users can adjust the brightness of the lights.

[0005] In the past two years, lighting fixtures have incorporated sensors into their design and use. These sensors detect ambient light and then work in conjunction with the fixture to adjust the emitted light. Existing sensors, during the design process, often use two separate components to fix the light-collecting element and the sensing element. This leads to installation errors during assembly and use, resulting in inaccurate positioning of the light-collecting and sensing elements, which in turn affects the overall performance of the sensor and leads to a poor user experience. Summary of the Invention

[0006] In view of this, this application provides a light sensor, a lamp, and a method of use to solve the problem that in existing sensors, the light-collecting element and the sensing element are fixed by two components during the design process. However, during the later assembly and use, due to installation errors, the positioning of the light-collecting element and the sensing element is inaccurate, which affects the sensor's performance and leads to a poor user experience.

[0007] In a first aspect, this application provides a light sensor, comprising:

[0008] Condensing lens;

[0009] Light sensor;

[0010] The housing has a receiving space and a through hole. The condensing lens and the light sensor are respectively fixed in the receiving space of the housing. Part of the condensing lens is disposed in the through hole. The condensing lens and the light sensor are arranged correspondingly.

[0011] A condenser lens and a photosensor are positioned correspondingly. The condenser lens collects light from outside the housing, while the photosensor senses changes in the light collected by the condenser lens. The condenser lens and photosensor are simultaneously fixed by the housing, ensuring precise positioning and avoiding the inaccuracies caused by separate components that may exist due to installation tolerances. Part of the condenser lens is housed within a through-hole to collect light from outside the housing.

[0012] In one optional embodiment, a clamping part is provided on the inner wall of the side plate of the housing, the bottom plate of the housing is arranged perpendicular to the side plate, the bottom plate is provided with the through hole, and the clamping part clamps the photosensor.

[0013] In one alternative embodiment, the side plate of the housing has a protruding cavity, and the clamping part is disposed on the inner wall of the protruding cavity.

[0014] In one alternative embodiment, the condenser lens portion extends beyond the base plate.

[0015] In one alternative embodiment, the cross-section of the condensing lens is arc-shaped.

[0016] In one alternative embodiment, a PCB board is also included, which is disposed within the receiving space. The PCB board has mounting holes, through which the pins of the light sensor pass and are fixed to the PCB board.

[0017] In one alternative embodiment, a sealing plate is also included. The housing has an opening, the sealing plate closes the opening, the sealing plate has a socket, and the PCB board has a power-taking pin on the side facing away from the receiving space, the power-taking pin passing through the socket.

[0018] In one optional embodiment, a plug block is further included, which is fixedly connected to the sealing plate. The power-taking pin passes through the plug block. A receiving portion is provided on each side of the sealing plate, and each receiving portion contains a magnetic attractor.

[0019] Secondly, this application also provides a lighting fixture, including the aforementioned light sensor.

[0020] Thirdly, this application also provides a method for using a light sensor, which uses a condenser lens to collect light from outside the housing and a light sensor to sense changes in the light collected by the condenser lens. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 is an exploded view of a photosensitive sensor according to an embodiment of this application;

[0023] Figure 2 is a schematic diagram of the housing, condenser lens and photosensor of an embodiment of this application;

[0024] Figure 3 is a schematic diagram of the sealing plate according to an embodiment of this application;

[0025] Figure 4 is a schematic diagram of a light sensor according to an embodiment of this application;

[0026] Figure 5 is a schematic diagram of a light sensor and a lamp housing according to an embodiment of this application;

[0027] Figure 6 is a bottom view of a light sensor and a lamp housing according to an embodiment of this application;

[0028] Figure 7 is a schematic diagram of another type of optical sensor according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Housing; 101. Clamping part; 102. Through hole; 103. Side plate; 104. Base plate; 105. Protruding cavity; 106. Accommodating space; 2. Condensing lens; 201. Curved surface; 202. Flat surface; 3. PCB board; 301. Power pin; 302. Signal pin; 4. Sealing plate; 401. Socket; 402. Accommodating part; 403. Soldering end; 5. Magnetic component; 6. Connector block; 7. Photosensor; 8. Lamp housing. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The embodiments of this application are described below with reference to Figures 1 to 7.

[0032] According to an embodiment of this application, a light sensor is provided, including: a condenser lens 2; a light sensor 7; and a housing 1. The housing 1 has a receiving space 106 and a through hole 102. The condenser lens 2 and the light sensor 7 are respectively fixed in the receiving space 106 of the housing 1, and part of the condenser lens 2 is disposed in the through hole 102.

[0033] A condenser lens 2 and a photosensor 7 are correspondingly arranged. The condenser lens 2 collects light from outside the housing 1, and the photosensor 7 senses changes in the light collected by the condenser lens 2. The condenser lens 2 and the photosensor 7 are simultaneously fixed by the housing 1, ensuring accurate positioning and consistency in mass production. This avoids the problem of inaccurate positioning caused by installation tolerances between two separate components that fix the condenser lens 2 and the photosensor 7. Part of the condenser lens 2 is located within the through hole 102 (i.e., part of the condenser lens 2 is located within the through hole 102, and part is located within the housing 1), so that the condenser lens 2 collects light from outside the housing 1. It should be noted that in this embodiment, the fixing method between the condenser lens 2 and the housing 1 is not specifically limited; it can be fixed by various methods such as adhesive bonding or snap-fitting.

[0034] In one embodiment, as shown in Figures 1, 2, and 3, a clamping part 101 is provided on the inner wall of the side plate 103 of the housing 1. The bottom plate 104 of the housing 1 is perpendicular to the side plate 103, and a through hole 102 is provided on the bottom plate 104. The clamping part 101 clamps the photosensor 7. By clamping the photosensor 7 with the clamping part 101, and with the bottom plate 104 perpendicular to the side plate 103, the light collected by the condenser lens 2 is directly transmitted to the photosensor 7. It should be noted that this embodiment does not limit the clamping method of the clamping part 101. The clamping part 101 can clamp the photosensor 7 in various ways such as snap-fit ​​or plug-in to ensure the stability of the photosensor 7.

[0035] In one embodiment, as shown in Figures 2 and 5, the side plate 103 of the housing 1 has a protruding cavity 105, and a clamping part 101 is provided on the inner wall of the protruding cavity 105. The protruding cavity 105 protrudes from the side plate 103 to increase the volume of the accommodating space 106, thereby providing sufficient space in the accommodating space 106 to accommodate the clamping part 101 and the photosensor 7. In addition, the shape of the protruding cavity 105 is different from the shape of the sealing plate 4, and the protruding cavity 105 serves as an anti-reverse structure to prevent users from installing it incorrectly.

[0036] In one embodiment, as shown in Figures 1 and 2, the condenser lens 2 extends outside the base plate 104 to collect light from outside the housing 1.

[0037] In one embodiment, as shown in Figures 1 and 2, the cross-section of the condensing lens 2 is arc-shaped. Due to the arc shape, the arc-shaped curved surface 201 of the condensing lens 2 extends beyond the base plate 104 to collect light rays from different directions outside the housing 1. After being focused by the condensing lens 2, the light is transmitted to the photosensor 7 via the plane 202. Ambient light within a specified range is collected by the condensing lens 2, and the ambient light is refracted into parallel light by the focusing lens 2, passing through the plane 202 and transmitted to the photosensor 7.

[0038] In one embodiment, as shown in Figures 1 and 2, a PCB board 3 is also included. The PCB board 3 is disposed within the receiving space 106 and has mounting holes. The pins of the light sensor 7 pass through the mounting holes and are fixed to the PCB board 3. The PCB board 3 further fixes the light sensor 7, ensuring its stability during use. In addition, the signal from the light sensor 7 is transmitted to the PCB board 3 through the pins.

[0039] In one embodiment, as shown in Figures 3 and 4, a sealing plate 4 is also included. The housing 1 has an opening, and the sealing plate 4 closes the opening. The sealing plate 4 is provided with a socket 401. A power-taking pin 301 is provided on the surface of the PCB board 3 facing away from the receiving space 106. The power-taking pin 301 passes through the socket 401 and draws power from the power-taking pin 301 to supply power to the PCB board 3.

[0040] In this embodiment, as shown in Figures 3 and 4, a signal pin 302 is also provided on the surface of the PCB board 3 facing away from the receiving space 106. The signal pin 302 passes through the socket 401 and provides signal transmission between the PCB board 3 and the lamp.

[0041] In one embodiment, as shown in Figures 1, 3, and 4, a plug-in block 6 is further included. The plug-in block 6 is fixedly connected to the sealing plate 4. The power-taking pin 301 passes through the plug-in block 6. A receiving portion 402 is provided on each side of the sealing plate 4, and each receiving portion 402 contains a magnetic attractor 5. Specifically, the magnetic attractor 5 is a magnet. It should be noted that the plug-in block 6 is located on the side of the sealing plate 4 facing away from the PCB, and the plug-in interface is detachably connected to the sealing plate 4 by plugging, snapping, or bonding. Furthermore, in this embodiment, the shape of the magnetic attractor 5 is not specifically limited; it can be cylindrical, rectangular, or other forms. The magnetic attractor 5 shown in Figures 3 and 4 is cylindrical, and the receiving portion 402 is arc-shaped to fit the magnetic attractor 5.

[0042] In this embodiment, as shown in FIG3, welding ends 403 are provided at both ends of the sealing plate 4. The ultrasonic welding of the sealing plate 4 and the housing 1 is achieved through the welding ends 403, thereby ensuring the stability of the components in the entire optical sensor.

[0043] A lighting fixture includes the aforementioned light sensor, as shown in Figures 5 and 6, and also includes a lamp housing 8. The light sensor is detachably connected to the side wall of the lamp housing 8. Specifically, the connector 6 of the light sensor extends into the side wall of the lamp housing 8, the magnetic connector 5 is magnetically connected to the side wall of the lamp housing 8, and the power-taking pin 301 is inserted into the lamp housing 8 to draw power. The connector, the magnetic connector 5, and the power-taking pin 301 work together to ensure the stability of the connection between the light sensor and the lamp housing 8, and to facilitate user installation, maintenance, and replacement. In this embodiment, the lamp housing 8 is fixed to the roof. The lamp housing 8 is made of iron. A light sensor is installed on the side of the lamp housing 8. The light sensor collects ambient light within a certain range inside the room through the condenser lens 2. When the ambient light changes, the light sensor 7 converts the collected light signal fluctuations into electrical signal fluctuations. After the ADC of the microcontroller on the PCB board 3 collects the fluctuating electrical signals, it realizes the dimming function through the DALI dimming circuit of the lamp according to the dimming algorithm.

[0044] A method of using a light sensor includes the following steps:

[0045] (1) The light sensor will set a threshold. When working, it will collect the average value of the ambient light through the condenser lens 2 and analyze the PCB board 3. When this value exceeds the set threshold range, it will trigger the dimming function to achieve the effects of intelligence, energy saving and comfort.

[0046] (2) The light sensor captures the fluctuations of ambient light. When there are no moving users around, this function will not be triggered, and the light will be kept at a relatively dim brightness to achieve energy saving. When an animal or user enters the sensing range of the light sensor, the light shines on the body and reflects light. The intensity change of the reflected light will be received and amplified by the focusing lens 2 of the light sensor, and then converted into an electrical signal to brighten the lamp. The light changes gently and slowly throughout the process, so as not to cause users any abruptness or discomfort.

[0047] The light sensor and lamp provided in this application have the following advantages: (1) The condenser lens 2 extends out of the housing 1, which can collect light from different directions outside the housing 1; (2) The housing 1 fixes the condenser lens 2 and the light sensor 7 at the same time, which ensures the accuracy of their positioning and coordination, and achieves consistency in mass production; (3) The light sensor 7 is further fixed by the PCB board 3, which ensures the stability of the light sensor 7 in use, and transmits the signal to the PCB board 3 through the pins; (4) The light sensor is connected to the lamp housing 8 by magnetic attraction and plug-in, which achieves detachability while ensuring the stability of the connection.

[0048] As an alternative implementation, as shown in Figure 7, this application may also omit the plug block 6 and use a pogo pin to connect to the lamp housing 8 for power and signal communication. Different forms are available to adapt to different lamps.

[0049] As an alternative implementation, the condenser lens 2 may not extend outside the housing 1, that is, the condenser lens 2 is flush with the outer surface of the base plate 104, or the condenser lens 2 is retracted into the through hole 102.

[0050] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A light sensing sensor, characterized by, include: Condensing lens (2); Light sensor (7); The housing (1) has a receiving space (106) and a through hole (102). The condensing lens (2) and the photosensitive sensor (7) are respectively fixed in the receiving space (106) of the housing (1). Part of the condensing lens (2) is located in the through hole (102). The condensing lens (2) and the photosensitive sensor (7) are arranged correspondingly.

2. The photosensor according to claim 1, characterized in that, The inner wall of the side plate (103) of the housing (1) is provided with a clamping part (101), the bottom plate (104) of the housing (1) is perpendicular to the side plate (103), the bottom plate (104) is provided with the through hole (102), and the clamping part (101) clamps the photosensitive sensor (7).

3. The light sensing sensor of claim 2, wherein, The side plate (103) of the housing (1) has a protruding cavity (105), and the clamping part (101) is provided on the inner wall of the protruding cavity (105).

4. The light sensing sensor of claim 2, wherein, The condenser lens (2) extends out of the base plate (104).

5. The light sensing sensor of claim 4, wherein, The cross-section of the condenser lens (2) is arc-shaped.

6. The light sensing sensor of claim 5, wherein, It also includes a PCB board (3), which is located in the accommodating space (106). The PCB board (3) has mounting holes, and the pins of the light sensor (7) pass through the mounting holes and are fixed to the PCB board (3).

7. The light sensing sensor of claim 6, wherein, It also includes a sealing plate (4), the housing (1) has an opening, the sealing plate (4) closes the opening, the sealing plate (4) is provided with a socket (401), the PCB board (3) is provided with a power-taking pin (301) on the surface away from the receiving space (106), and the power-taking pin (301) is provided through the socket (401).

8. The light sensing sensor of claim 7, wherein, It also includes a plug block (6), which is fixedly connected to the sealing plate (4). The power-taking pin (301) passes through the plug block (6). Each side of the sealing plate (4) is provided with a receiving part (402), and each receiving part (402) contains a magnetic attractor (5).

9. A luminaire characterized by, The light sensor included in any one of claims 1-8.

10. A method of using a photosensitive sensor as claimed in claim 1, characterized in that A condenser lens (2) is used to collect light from outside the housing (1), and a light sensor (7) is used to sense changes in the light collected by the condenser lens (2).

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