Light sensing detection structure and mobile lighting device

Abstract

The application relates to a light-sensing detection structure and a mobile lighting device. The light-sensing detection structure comprises a head part bin, a metal substrate arranged in the head part bin, a lens, a light-shielding bowl and a light sensor. The metal substrate, the lens and the light sensor are fixed in the head part bin, and the metal substrate is located between the lens and the light sensor. The light-shielding bowl is fixed on the metal substrate and located between the metal substrate and the lens. In the light-sensing detection structure, a light inlet hole is arranged outside the projection of the light-shielding bowl on the metal substrate along a light inlet direction, and the light sensor senses external brightness through the light inlet hole. The light-shielding bowl can resist outgoing light and prevent the outgoing light from escaping and entering the light inlet hole. The incident light can enter the light inlet hole through the gap outside the light-shielding bowl and be received and detected by the light sensor. Since the light-sensing detection structure does not have other obstacles to block the outgoing light, the light-sensing detection structure has the advantages of large light flux and high light emission rate in cooperation with the irradiation of the light emitter, can irradiate a complete light spot around, and has a better lighting effect.

Description

Technical Field

[0001] This application relates to the field of mobile lighting technology, and in particular to light-sensing detection structures and mobile lighting devices. Background Technology

[0002] With the development of mobile lighting technology, a type of mobile lighting device with light sensing function has emerged. This mobile lighting device can detect the light intensity of the surrounding environment and automatically adjust the lighting effect of the mobile lighting device accordingly, thereby avoiding damage to surrounding objects caused by prolonged close-range exposure to strong light.

[0003] However, traditional portable lighting devices with light-sensing capabilities detect light by creating an opening inside a lens and using an optical fiber within the opening to transmit ambient light back to the light sensor. However, creating an opening inside the lens somewhat affects the light output of the portable lighting device, resulting in poor illumination. Summary of the Invention

[0004] Therefore, it is necessary to provide a light-sensing detection structure and a mobile lighting device.

[0005] A light-sensing detection structure includes a head compartment and a metal substrate, a lens, a light-shielding bowl, and a light sensor disposed in the head compartment.

[0006] The metal substrate, the lens, and the photosensor are all fixed in the head compartment, and the metal substrate is located between the lens and the photosensor, and the metal substrate is electrically connected to the photosensor.

[0007] The light-shielding bowl is fixed on the metal substrate and located between the metal substrate and the lens;

[0008] Along the light-inlet direction, outside the projection of the light-shielding bowl onto the metal substrate, the light-sensing detection structure has a light-inlet hole, and the light sensor senses the external brightness through the light-inlet hole.

[0009] In the aforementioned photosensitive detection structure, the photosensor is hidden beneath the metal substrate, without obstructing the emitted light. On one hand, the light-shielding bowl can block the emitted light, preventing it from escaping and entering the light-inlet hole. On the other hand, the incident light can enter the light-inlet hole through the gap on the outside of the light-shielding bowl, and thus be received and detected by the photosensor. Furthermore, since there are no other obstacles obstructing the emitted light in the photosensitive detection structure, it has the advantages of high luminous flux and high light output rate when combined with the illumination of the light-emitting body, and can illuminate a complete light spot around it, resulting in better illumination effect.

[0010] In one embodiment, the photosensor is located below the metal substrate, and the metal substrate has the light-entry hole.

[0011] In one embodiment, along the light-gathering direction, the projection of the lens onto the metal substrate covers the light-gathering aperture.

[0012] Furthermore, in one embodiment, the lens has an extension portion, and along the light-incident direction, the projection of the extension portion onto the metal substrate covers the light-incident hole; and the projection of the remaining portion of the lens onto the metal substrate, excluding the extension portion, coincides with the projection of the light-shielding bowl onto the metal substrate.

[0013] In one embodiment, the head compartment has the light inlet hole.

[0014] In one embodiment, along the light-gathering direction, the projection of the lens onto the metal substrate covers the light-gathering hole outside the metal substrate.

[0015] In one embodiment, the light inlet is exposed to the outside through the head compartment along the light inlet direction.

[0016] In one embodiment, the photosensitive detection structure further includes an elastic conductive element disposed between the metal substrate and the photosensor, for providing elastic support when the photosensor moves toward the metal substrate under force, and the metal substrate is electrically connected to the photosensor through the elastic conductive element.

[0017] In one embodiment, the light-sensing detection structure further includes a light-emitting element, which is fixed on the metal substrate and located between the metal substrate and the lens, and the light-shielding bowl surrounds the light-emitting element.

[0018] In one embodiment, a mobile lighting device includes a power supply structure and any one of the light sensing structures described above;

[0019] The power supply structure is detachably connected to the head compartment of the light-sensing detection structure.

[0020] The mobile lighting device or its light-sensing detection structure further includes a light-emitting body, which is fixed on the metal substrate and located between the metal substrate and the lens, and the light-shielding bowl is arranged around the light-emitting body;

[0021] Furthermore, the power supply structure is electrically connected to the light-emitting body when it is connected to the head compartment.

[0022] In one embodiment, the mobile lighting device further includes an external attachment fixed to the power supply structure or the head compartment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of an embodiment of the mobile lighting device described in this application.

[0025] Figure 2 for Figure 1 Another schematic diagram of the embodiment shown.

[0026] Figure 3 for Figure 2 A schematic cross-sectional view along the AA direction of the embodiment shown.

[0027] Figure 4 for Figure 1 A schematic diagram of the internal structure of the embodiment shown.

[0028] Figure 5 for Figure 1 Another schematic diagram of the embodiment shown.

[0029] Figure 6 for Figure 5 The illustrated embodiment is shown in an exploded view.

[0030] Figure 7 This is a schematic diagram of an embodiment of the photosensitive detection structure described in this application.

[0031] Figure 8 This is a schematic diagram of the projection of the light-emitting body and the light-shielding bowl onto the plane of the metal substrate along the light-incident direction.

[0032] Figure 9 This is a schematic diagram of the projection of the light-emitting body, the light-shielding bowl, the lens, and the light-entry hole onto the plane of the metal substrate along the light-entry direction.

[0033] Figure 10 This is a schematic diagram showing the dimensional relationship of another embodiment of the photosensitive detection structure described in this application.

[0034] Figure 11 for Figure 10 A schematic diagram of the optical path in the embodiment shown.

[0035] Reference numerals: light-sensing detection structure 100, power supply structure 200, external attachment 300, light-entry direction 400, irradiation surface 500, emitted light 600, metal substrate 110, lens 120, light-shielding bowl 130, light-entry hole 140, light sensor 150, head compartment 160, light-emitting body 170, elastic conductive component 180. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0041] This application discloses a light-sensing detection structure and a mobile lighting device, which includes some or all of the structures of the following embodiments; that is, the light-sensing detection structure and the mobile lighting device include some or all of the following technical features. In one embodiment of this application, a light-sensing detection structure includes a head compartment and a metal substrate, a lens, a light-shielding bowl, and a light sensor disposed in the head compartment; the metal substrate, the lens, and the light sensor are all fixed in the head compartment, and the metal substrate is located between the lens and the light sensor, and the metal substrate is electrically connected to the light sensor; the light-shielding bowl is fixed on the metal substrate and located between the metal substrate and the lens; along the light-incident direction, outside the projection of the light-shielding bowl onto the metal substrate, the light-sensing detection structure has a light-incident hole, and the light sensor senses the external brightness through the light-incident hole. In the aforementioned photosensitive detection structure, the photosensor is hidden beneath the metal substrate, without obstructing the emitted light. On one hand, the light-shielding bowl can block the emitted light, preventing it from escaping and entering the light-inlet hole. On the other hand, the incident light can enter the light-inlet hole through the gap on the outside of the light-shielding bowl, and thus be received and detected by the photosensor. Furthermore, since there are no other obstacles obstructing the emitted light in the photosensitive detection structure, it has the advantages of high luminous flux and high light output rate when combined with the illumination of the light-emitting body, and can illuminate a complete light spot around it, resulting in better illumination effect.

[0042] In one embodiment, a mobile lighting device such as Figure 1 As shown, it includes a power supply structure 200 and a light sensing structure 100; the power supply structure 200 and the light sensing structure 100 are detachably connected; in this embodiment, the mobile lighting device also includes an external attachment 300, which is fixed to the light sensing structure 100 or its head compartment, and the mobile lighting device is fixed or carried by the external attachment 300.

[0043] Combination Figure 2 and Figure 3 The mobile lighting device or its light-sensing detection structure 100 further includes a light-emitting element 170. The power supply structure 200, when connected to the light-sensing detection structure 100, is electrically connected to the light-emitting element 170. In this state, the light-emitting element 170 can be controlled to emit light or not emit light via a control circuit or control switch; alternatively, the light sensor 150 can be used to switch the control circuit or control switch on and off to control the light-emitting element 170 to emit light or not emit light.

[0044] Combination Figure 4The power supply structure 200 is detachably connected to the head compartment 160 of the light sensing structure 100; the mobile lighting device or its light sensing structure 100 also includes a light-emitting element 170, which is fixed on the metal substrate 110 and located between the metal substrate 110 and the lens 120, and the light-shielding bowl 130 surrounds the light-emitting element 170; and the power supply structure 200 is electrically connected to the light-emitting element 170 when it is connected to the head compartment 160.

[0045] In one embodiment, the mobile lighting device is as follows: Figure 5 and Figure 6 As shown, the mobile lighting device also includes an external attachment 300, which is fixed to the light-sensing detection structure 100; in other embodiments, the external attachment 300 is fixed to the power supply structure 200; or, the external attachment 300 is fixed to both the light-sensing detection structure 100 and the power supply structure 200. In specific applications, the mobile lighting device includes mobile lighting lamps, mobile lighting vehicles, vehicle-mounted searchlights, remote-controlled vehicle lights, flashlights, searchlights, and mobile terminals, etc.

[0046] In one embodiment, a portable lighting device includes a light-emitting element 170, a power supply structure 200, and a light-sensing detection structure 100. The light-emitting element 170 is fixed to a metal substrate 110 and located between the metal substrate 110 and a lens 120. A light-shielding bowl 130 surrounds the light-emitting element 170. The power supply structure 200 is detachably connected to a head compartment 160 of the light-sensing detection structure 100, and the power supply structure 200 is electrically connected to the light-emitting element 170 when connected to the head compartment 160. In one embodiment, the portable lighting device further includes an external attachment 300, which is fixed to the power supply structure 200 or the head compartment 160. In this design, the light sensor is hidden under the metal substrate without blocking the emitted light. On the one hand, the light-shielding bowl can block the emitted light and prevent it from escaping and entering the light-inlet hole. On the other hand, the incident light can enter the light-inlet hole through the gap on the outside of the light-shielding bowl, and thus be received and detected by the light sensor. Furthermore, since there are no other obstacles blocking the emitted light in the light-sensing structure, it has the advantages of high luminous flux and high light output rate when combined with the illumination of the light-emitting body, and can illuminate a complete light spot around it, resulting in better lighting effect.

[0047] The light-sensing detection structure 100 will be further illustrated below. It will be understood that the mobile lighting device includes the light-sensing detection structure 100 described in any of the following embodiments.

[0048] In one embodiment, a light-sensing detection structure 100, such as Figure 7As shown, it includes a head compartment 160 and a metal substrate 110, a lens 120, a light-shielding bowl 130, and a light sensor 150 disposed in the head compartment 160; the metal substrate 110, the lens 120, and the light sensor 150 are all fixed in the head compartment 160, and the metal substrate 110 is located between the lens 120 and the light sensor 150, and the metal substrate 110 is electrically connected to the light sensor 150; the light-shielding bowl 130 is fixed on the metal substrate 110 and located between the metal substrate 110 and the lens 120; the light-sensing detection structure 100 has a light-entry hole 140, and the light sensor 150 senses the external brightness through the light-entry hole 140. In this embodiment, the light-sensing detection structure 100 further includes a light-emitting element 170, which is fixed on the metal substrate 110 and located between the metal substrate 110 and the lens 120. The light-shielding bowl 130 surrounds the light-emitting element 170. The light-emitting element 170 includes, but is not limited to, LED beads, i.e., LED chips.

[0049] To ensure the light emission effect of the light emitter 170, in one embodiment, the lens 120 and the light-shielding bowl 130 are coaxially arranged, meaning that both the lens 120 and the light-shielding bowl 130 have a central axis, and their central axes coincide. This design helps to ensure the illumination position and range of the emitted light from the light emitter 170. Combined with embodiments where the photosensor 150 is located below the metal substrate 110 or the light inlet 140 is located outside the light-shielding bowl 130, this facilitates the illumination of a complete light spot, resulting in better lighting effects.

[0050] Combination Figure 7 , Figure 8 and Figure 9Along the light-incident direction 400, outside the projection of the light-shielding bowl 130 onto the metal substrate 110, the light-sensing detection structure 100 has a light-incident hole 140, and the light sensor 150 senses the external brightness through the light-incident hole 140. That is, on the plane where the metal substrate 110 is located, the light-shielding bowl 130 has a projection range along the light-incident direction 400, and the location of the light-incident hole 140 exceeds this projection range; that is, the light-incident hole 140 is located outside the light-shielding bowl 130. Further, in one embodiment, the emitted light from the light-emitting body 170 only illuminates the outside, i.e., the external environment, through the lens 120, or the emitted light from the light-emitting body 170 only illuminates the outside through the lens 120 and its transparent cover. With this design, since the light sensor 150 is hidden below the light inlet 140, there are no other structures or components inside the mobile lighting device or its light sensing detection structure 100 that block the emitted light. The emitted light from the light source 170 is not affected by anything except the lens 120 or the lens 120 and its transparent cover. Therefore, compared with traditional light-sensing mobile lighting devices, the mobile lighting device or its light sensing detection structure 100 provided in this embodiment has a larger luminous flux and a higher light output rate. Moreover, since the emitted light from the light source 170 is not affected by anything else, it can illuminate a complete light spot around the device instead of a traditional incomplete light spot, thus achieving a better lighting effect.

[0051] In this embodiment, as Figure 9 As shown, along the light-incident direction 400, the projection of the lens 120 onto the metal substrate 110 covers the light-incident hole 140. The light-incident hole 140 can be located on the metal substrate 110 or on the head compartment 160. In one embodiment, the photosensor 150 is located below the metal substrate 110, and the metal substrate 110 has the light-incident hole 140. Further, in one embodiment, the lens 120 has an extension portion, and along the light-incident direction 400, the projection of the extension portion onto the metal substrate 110 covers the light-incident hole 140; and the projection of the remaining portion of the lens 120 onto the metal substrate 110 coincides with the projection of the light-shielding bowl 130 onto the metal substrate 110. Further, in one embodiment, the extension portion is semi-circular, rectangular, rounded rectangular, or elliptical, etc. This design helps to control the size of the additional projected area of ​​the lens 120 relative to the light-shielding bowl 130, that is, to control the size of the lens 120.

[0052] In one embodiment, the head compartment 160 has the light-entry hole 140. In one embodiment, along the light-entry direction 400, the projection of the lens 120 onto the metal substrate 110 covers the light-entry hole 140 outside the metal substrate 110. Alternatively, the light-entry hole 140 may not be blocked by the lens 120; in one embodiment, along the light-entry direction 400, the light-entry hole 140 is exposed to the outside through the head compartment 160. This design provides another design approach, allowing the light-entry hole 140 to receive external light through the head compartment 160, enabling the photosensor 150 to sense the external light intensity.

[0053] To protect the photosensor 150 from impact damage, in one embodiment, the photosensing structure 100 further includes an elastic conductive element 180. The elastic conductive element 180 is disposed between the metal substrate 110 and the photosensor 150, providing elastic support when the photosensor 150 moves towards the metal substrate 110 under force. The metal substrate 110 is electrically connected to the photosensor 150 through the elastic conductive element 180. Further, in one embodiment, the photosensor 150 is mounted on a sensing circuit board. One end of the elastic conductive element 180 is electrically connected to, for example, by soldering, snapping, or abutting against the sensing circuit board, and the other end is electrically connected to the metal substrate 110, thereby achieving elastic conductivity. This ensures that even if shaking or vibration occurs when carrying or using the photosensing structure 100, the effective and stable connection between the sensing circuit board and the metal substrate 110 can be maintained, thus ensuring circuit continuity. Furthermore, in one embodiment, the elastic conductive elements 180 respectively abut against both sides of the photosensor 150, so that the photosensor 150 has an elastic suspension mounting effect relative to the head compartment 160 or its metal substrate 110; such a design is beneficial to avoid damage to the photosensor 150 or accidental displacement caused by collision when carrying and using the mobile lighting device or its photosensor detection structure 100 in daily life, thereby effectively ensuring the design life of the mobile lighting device or its photosensor detection structure 100.

[0054] In one specific application embodiment, taking the light-emitting element 170 as an example, such as... Figure 10As shown, LED beads are soldered onto a metal substrate 110, which is installed inside the head compartment 160. A lens 120 and a light-shielding bowl 130 are coaxial, with the bowl located outside the lens 120. A light-entry hole 140 is provided on one side inside the head compartment 160, and a photosensor 150 is installed below the light-entry hole 140. In this embodiment, the lens 120 has an aperture of size A and a height of size B, and is used to adjust the light path. The light-shielding bowl 130 has a height of size C and is used to block the light source, i.e., the light emitter 170, preventing the emitted light from the light emitter 170 from escaping into the mobile lighting device or its photosensitive detection structure, such as entering the light-entry hole 140, thus avoiding affecting the detection effect of the photosensor 150. The light-entry hole 140 has an aperture of size D and is used to receive incident light, including light from the external environment or light reflected back from the external environment or the head compartment 160. Incident light can enter the light-entry aperture 140 through a first slit from the axis of the light-entry aperture 140 to the outer edge of the lens 120, and a second slit from the axis of the light-entry aperture 140 to the outer edge of the light-shielding bowl 130; the width of the first slit is dimension E, and the width of the second slit is dimension F. A photosensor 150 is used to detect the incident light.

[0055] Furthermore, given that A, B, and D are known quantities, the relationships between the above dimensions are set as follows:

[0056] 35A = 88C Equation 1

[0057]

[0058] E+F≤D Equation 3

[0059]

[0060]

[0061] Among them, lens 120 is selected and light-entry aperture 140 is determined. Based on the aperture size A and height size B of lens 120, and the aperture size D of light-entry aperture 140, the height size C of light-shielding bowl 130 is obtained as 35A / 88, and the width size E of the first gap from the axis of light-entry aperture 140 to the outer edge of lens 120 is... The width F of the second slit from the axis of the light inlet 140 to the outer edge of the light-shielding bowl 130 is D / 2. That is, for the specific mobile lighting device or its light-sensing detection structure, the aperture A and height B of the lens 120, and the aperture D of the light inlet 140 are determined. Then, according to equations 1 to 5 above, the height C of the light-shielding bowl 130 and the specific position of the light inlet 140 can be determined. This specific position includes the width E of the first slit from the axis of the light inlet 140 to the outer edge of the lens 120, and the width F of the second slit from the axis of the light inlet 140 to the outer edge of the light-shielding bowl 130, thus obtaining... Figure 10 The mobile lighting device and its optical path are shown. This structural design, on the one hand, facilitates control over the structural dimensions of the mobile lighting device or its light-sensing detection structure, reducing material consumption while meeting lighting design requirements; on the other hand, the light-shielding bowl 130 does not completely enclose the lens 120, and there is a gap between the outer side of the light-shielding bowl 130 and the outer side of the lens 120, allowing the light-shielding bowl 130 to block outgoing light, preventing it from escaping and entering the light-inlet aperture. Incident light can enter the light-inlet aperture 140 through the gap between the outer side of the light-shielding bowl 130 and the outer side of the lens 120, and thus be received and detected by the light sensor 150; furthermore, the light sensor 150 is hidden below the metal substrate 110, not blocking outgoing light. With no other obstacles inside the mobile lighting device obstructing outgoing light, the luminous flux is high, the light output rate is high, and a complete light spot can be emitted around the device, resulting in better lighting effects.

[0062] In actual use, such as Figure 11 As shown, lens 120 adjusts the emitted light 600 to illuminate the surrounding environment of the illumination surface 500. Light from the surrounding environment can enter the light inlet 140 through the gap between the outer edge of lens 120 and the outer edge of the light-shielding bowl 130, thus incident on the light sensor 150 hidden below the light inlet 140. The light sensor 150 detects the incident light, and the mobile lighting device can automatically adjust the lighting effect based on the detection result, ensuring high safety. Because the light sensor 150 is hidden below the light inlet 140, there are no other obstacles inside the mobile lighting device that block the emitted light. Compared to existing light-sensing mobile lighting devices, the mobile lighting device or its light-sensing detection structure provided in the embodiments of this application has a larger luminous flux, a higher light output rate, and can illuminate a complete light spot around the device, resulting in better lighting effects.

[0063] It should be noted that other embodiments of this application also include a light-sensing detection structure and a mobile lighting device formed by combining the technical features of the above embodiments.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A photosensitive detection structure (100), characterized in that, It includes a head compartment (160) and a metal substrate (110), a lens (120), a light-shielding bowl (130) and a light sensor (150) disposed in the head compartment (160). The metal substrate (110), the lens (120) and the photosensor (150) are all fixed in the head compartment (160), and the metal substrate (110) is located between the lens (120) and the photosensor (150), and the metal substrate (110) and the photosensor (150) are electrically connected. The light-shielding bowl (130) is fixed on the metal substrate (110) and located between the metal substrate (110) and the lens (120); Along the light-inlet direction (400), outside the projection of the light-shielding bowl (130) onto the metal substrate (110), the light-sensing detection structure (100) has a light-inlet hole (140), and the light sensor (150) senses the external brightness through the light-inlet hole (140). The lens (120) has an extension along the light-incident direction (400), and the projection of the extension onto the metal substrate (110) covers the light-incident hole (140); and the projection of the remaining part of the lens (120) except for the extension onto the metal substrate (110) coincides with the projection of the light-shielding bowl (130) onto the metal substrate (110); Among them, a lens (120) is selected and an aperture (140) is determined. Based on the aperture size A and height size B of the lens (120) and the aperture size D of the aperture (140), the height size C of the light-shielding bowl 130 is obtained as 35A / 88. The width dimension E of the first slit from the axis of the light inlet (140) to the outer edge of the lens (120) is... ， The width dimension F of the second slit from the axis of the light inlet (140) to the outer edge of the light-shielding bowl (130) is D / 2.

2. The photosensitive detection structure (100) according to claim 1, characterized in that, The light sensor (150) is located below the metal substrate (110), and the metal substrate (110) has the light inlet hole (140).

3. The photosensitive detection structure (100) according to claim 2, characterized in that, Along the light-inlet direction (400), the projection of the lens (120) onto the metal substrate (110) covers the light-inlet hole (140).

4. The photosensitive detection structure (100) according to claim 1, characterized in that, The head compartment (160) is provided with the light inlet (140).

5. The photosensitive detection structure (100) according to claim 4, characterized in that, Along the light-inlet direction (400), the projection of the lens (120) onto the metal substrate (110) covers the light-inlet hole (140) outside the metal substrate (110).

6. The photosensitive detection structure (100) according to claim 4, characterized in that, Along the light-inlet direction (400), the light-inlet hole (140) is exposed to the outside through the head compartment (160).

7. The photosensitive detection structure (100) according to claim 1, characterized in that, It also includes an elastic conductive element (180), which is disposed between the metal substrate (110) and the photosensor (150) to provide elastic support when the photosensor (150) is moved toward the metal substrate (110) under force. The metal substrate (110) is electrically connected to the photosensor (150) through the elastic conductive element (180). The elastic conductive element (180) abuts against both sides of the photosensor (150) so that the photosensor (150) is elastically suspended relative to the head compartment (160) or the metal substrate (110).

8. The photosensitive detection structure (100) according to any one of claims 1 to 7, characterized in that, It also includes a light-emitting element (170), which is fixed on the metal substrate (110) and located between the metal substrate (110) and the lens (120), and the light-shielding bowl (130) surrounds the light-emitting element (170).

9. A portable lighting device, characterized in that, Includes a power supply structure (200) and a light-sensing detection structure (100) as described in any one of claims 1 to 7. The power supply structure (200) is detachably connected to the head compartment (160) of the light sensing structure (100); The mobile lighting device or its light-sensing detection structure (100) further includes a light-emitting body (170), which is fixed on the metal substrate (110) and located between the metal substrate (110) and the lens (120), and the light-shielding bowl (130) surrounds the light-emitting body (170); Furthermore, the power supply structure (200) is electrically connected to the light-emitting body (170) when it is connected to the head compartment (160).

10. The portable lighting device according to claim 9, characterized in that, It also includes an external attachment (300) which is fixed to the outside of the power supply structure (200) or the head compartment (160).

Images