CN210016659U

CN210016659U - Ambient light intensity detector and constant light system

Info

Publication number: CN210016659U
Application number: CN201920335343.1U
Authority: CN
Inventors: 邹高迪; 邹新
Original assignee: Shenzhen Merrytek Technology Co Ltd
Current assignee: Shenzhen Merrytek Technology Co Ltd
Priority date: 2019-03-15
Filing date: 2019-03-15
Publication date: 2020-02-04
Anticipated expiration: 2029-03-15

Abstract

The utility model discloses an ambient light intensity detector and constant optical system, wherein ambient light intensity detector includes a uniform lighting portion, one converges light portion and a sensing chip, it converges light portion and forms one and converges light optical path, uniform lighting portion with sensing chip's sensing face is kept respectively converge light optical path. The light uniformizing part is arranged to be subjected to light uniformizing treatment when reflected light of an object passes through so as to form light to be detected, the light converging part is arranged to converge the light to be detected to the light converging light path, the sensing surface of the sensing chip receives the light to be detected converged to the light converging light path by the light converging part, and the sensing chip detects the light intensity of a use environment by detecting the light to be detected.

Description

Ambient light intensity detector and constant light system

Technical Field

The utility model relates to an ambient light detection device, in particular to ambient light intensity detector and constant optical system.

Background

In recent years, intelligent lighting fixtures are widely used, wherein the existing intelligent lighting fixture includes a processor system, at least one light sensor and at least one lighting fixture, each of the light sensors and each of the lighting fixtures are respectively connected to the processor system, wherein each of the light sensors is respectively configured with a potentiometer, so as to adjust a sensing value of the light sensor through the potentiometer when the intelligent lighting fixture is installed in a use environment. The sensing value of the light sensor is related to the light brightness of the use environment desired by the user. For example, if the light brightness of the usage environment is lower than the sensing value of the light sensor, the light sensor generates a sensing signal, the processor system can receive the sensing signal and subsequently control the state of the lamp, for example, the processor system can control the lamp to be turned on or adjust the brightness of the lamp, so that the light brightness of the usage environment meets the user's expectations. Although the existing intelligent lamp brings convenience to users, the existing intelligent lamp still has a plurality of defects.

First, the light sensor detects the light brightness of the use environment by receiving the reflected light of the object held in the use environment, which results in the light sensor being susceptible to the influence of the surface reflectivity of the object held in the use environment, causing the detection result not to match the real environment. Specifically, the types of objects held in the use environment are various, for example, if the use environment is an office environment, the objects may be a desk, a4 paper placed on the desk, a keyboard, a mobile phone screen, and the like, wherein the surface of the desk, the surface of the a4 paper, the surface of the keyboard, and the surface of the mobile phone screen have different reflectivities due to the influences of their materials and colors, and the detection results obtained by the light sensor receiving the reflected light from the surface of the desk, the surface of the a4 paper, the surface of the keyboard, and the surface of the mobile phone screen are different or even opposite when the light brightness of the use environment is maintained. Obviously, the detection result of the light sensor of the existing intelligent lamp is easily interfered by the object existing in the use environment.

Secondly, the sensing value of the light sensor of the intelligent lamp is adjusted by the potentiometer, and the core of the potentiometer is a sliding rheostat which adjusts the sensing value of the light sensor by adjusting the relative position between the resistor body and the movable brush, which causes an error in the sensing value of the light sensor. Specifically, even if the current shift position of the potentiometer is adjusted to be consistent with the previous shift position, actually, the sensing value of the light sensor at the current shift position is still different from the sensing value at the previous shift position. If the intelligent lamp is only provided with one light sensor, the influence of the error of the potentiometer on the intelligent lamp is small, and if the intelligent lamp needs to be provided with a plurality of light sensors, the sensing values of the light sensors cannot be unified due to the error of the potentiometer, so that the real light brightness of the use environment cannot be accurately acquired by the intelligent lamp.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein keep in the surface reflectivity of service environment's object is right the adverse effect that ambient light intensity detector's testing result produced can be weakened, in order to be favorable to improving ambient light intensity detector's the accuracy of testing result.

An object of the utility model is to provide an ambient light intensity detector and constant optical system, wherein ambient light intensity detector keeps through blurring use environment's the reflected light's of object mode, it is right to weaken the surface reflectivity of object the adverse effect that ambient light intensity detector's testing result's accuracy produced.

An object of the utility model is to provide an ambient light intensity detector and constant optical system, wherein ambient light intensity detector can provide a plurality of control positions of predetermineeing, a plurality of control positions of predetermineeing respectively with every sensing value one-to-one of an ambient light intensity detector's sensing chip.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector can provide a plurality of control bit of predetermineeing, in order to be favorable to a plurality of ambient light intensity detector's sensing value is unified.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector's detection range can be based on service environment's actual state is adjusted, in order to improve ambient light intensity detector's suitability.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector provides an even light portion and a light path that converges, the light path that converges forms a light path that converges, even light portion with sensing chip's sensing face is kept respectively the light path that converges, wherein even light portion loses the directionality when being set up the reflex ray of object and passing, light path that converges is set up the reflex ray that can assemble the object extremely converge the light path.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector is detecting during service environment's luminous intensity, at first allow the reflection light of object to pass even light portion and lose the directionality to form and wait to detect light, secondly it assembles to converge light portion wait to detect light extremely it converges the light path, in order by sensing chip's sensing surface receives, through such mode, can weaken and keep the surface reflectivity of service environment's object is right the harmful effects that ambient light intensity detector's testing result produced.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein converge light portion with interval between the sensing chip can be adjusted, in order to adjust ambient light intensity detector's detection range, thereby make ambient light intensity detector is suitable for the multiple service environment.

An object of the utility model is to provide an ambient light intensity detector and constant optical system, wherein the portion of converging light has an axis, the portion of converging light is set up and can assemble indiscriminately the axis is all around wait to detect light extremely the light path of converging.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein even light portion is set up can be right indiscriminately the axis object's reflection light carries out even light processing, in order to form wait to detect light.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein sensing chip is set up and is made sensing chip sensing face perpendicular to converge light portion the axis, thereby it assembles to converge light portion wait to detect light extremely after converging the light path, sensing chip sensing face can direct reception wait to detect light.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector provides a light steering portion, light steering portion can change wait to detect the radiation direction of light, with in the follow-up quilt the sensing chip the sensing face is received.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector provides a shell, the shell defines a measuring environment, wherein sensing chip is in receive in the measuring environment wait to detect light, and right service environment's luminous intensity detects to direct irradiation of avoiding external light is right ambient light intensity detector's the interference of testing result.

An object of the utility model is to provide an ambient light intensity detector and constant light system, wherein ambient light intensity detector provides a controller, sensing chip be connected in the controller, wherein the controller can have a plurality of control positions of predetermineeing, a plurality of control positions of predetermineeing of controller with every sensing value one-to-one of sensing chip. The ambient light intensity detector can conveniently unify the sensing values of the ambient light intensity detectors in a mode that the controller provides a plurality of preset control bits.

According to an aspect of the utility model, the utility model provides an environment luminous intensity controller, it includes:

the dodging part is arranged when the reflected light of the object passes through and is subjected to dodging treatment to form light to be detected;

the light converging part forms a light converging light path, the light homogenizing part is kept on the light converging light path, and the light converging part is arranged to converge the light to be detected to the light converging light path; and

and the sensing chip is provided with a sensing surface, and the sensing surface of the sensing chip is kept in the light converging light path so as to allow the light to be detected converged to the light converging light path to be received by the sensing surface of the sensing chip.

According to another aspect of the present invention, the present invention further provides a constant light system, which includes:

a control system, wherein the control system has a plurality of preset control bits;

at least one light fixture, wherein said light fixture is controllably connected to said control system; and

an ambient light intensity detector, wherein the ambient light intensity detector further comprises:

the dodging part is subjected to dodging processing when reflected light of an object arranged in the detection area passes through the dodging part so as to form light to be detected;

the sensing chip is provided with a sensing surface, the sensing surface of the sensing chip is kept on the light converging light path to allow the light to be detected converged on the light converging light path to be received by the sensing surface of the sensing chip, the sensing chip is connected to the control system, and when the intensity of the light to be detected changes, the control system can control the change of the luminous intensity of the lamp according to the set preset control position, so that the aim that the illumination of the detected area is kept constant corresponding to the set preset control position is fulfilled.

According to another aspect of the present invention, the present invention further provides a method for manufacturing an ambient light intensity detector, wherein the method comprises the steps of:

(a) arranging a light converging part and a light homogenizing part in sequence in an accommodating cavity of a shell; and

(b) and mounting a circuit board attached with a sensing chip on the accommodating cavity of the shell from the high end of the shell, wherein a sensing surface of the sensing chip is kept on a light converging optical path formed by the light converging part, so as to obtain the ambient light intensity detector.

According to another aspect of the present invention, the present invention further provides a method for detecting ambient light intensity, wherein the method comprises the following steps:

(A) losing the directivity of the reflected light of the object kept in the lighting environment in a use area to form a light to be detected;

(B) converging the light to be detected to a converging light path; and

(C) and receiving the light to be detected on the light converging light path by using a sensing surface of a sensing chip so as to allow the sensing chip to detect the light intensity of the lighting environment in the use area in a mode of detecting the light to be detected.

Drawings

Fig. 1 is a perspective view of an ambient light intensity detector according to a first preferred embodiment of the present invention.

Fig. 2 is an exploded view of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 3A is a schematic perspective cross-sectional view of a viewing angle of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 3B is a schematic perspective cross-sectional view of another view angle of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 4 is a cross-sectional view of the ambient light intensity detector according to the above preferred embodiment of the present invention, which illustrates that the light intensity of a usage environment is detected.

Fig. 5A is a schematic cross-sectional view of a modified embodiment of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 5B is a schematic cross-sectional view of a modified embodiment of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 5C is a schematic cross-sectional view of a modified embodiment of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 5D is a schematic cross-sectional view of a modified embodiment of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 6 is a perspective view of a modified embodiment of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 7A is a schematic diagram of a constant light system according to a preferred embodiment of the present invention.

Fig. 7B is a schematic diagram of a variation of the constant light system according to the above preferred embodiment of the present invention.

Fig. 8A is a schematic perspective cross-sectional view of an ambient light intensity detector according to a second preferred embodiment of the present invention.

Fig. 8B is a schematic perspective cross-sectional view of another view angle of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 8C is a cross-sectional view of the ambient light intensity detector according to the above preferred embodiment of the present invention, which illustrates that the light intensity of a usage environment is detected.

Fig. 9A is a schematic perspective cross-sectional view of an ambient light intensity detector according to a third preferred embodiment of the present invention.

Fig. 9B is a schematic perspective cross-sectional view of another view angle of the ambient light intensity detector according to the above preferred embodiment of the present invention.

Fig. 9C is a cross-sectional view of the ambient light intensity detector according to the above preferred embodiment of the present invention, which illustrates that the light intensity of a usage environment is detected.

Detailed Description

According to the disclosure of the claims and the description of the present invention, the technical solution of the present invention is described in detail below.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

It is to be understood that the terms "a" and "an" are to be interpreted as meaning "at least one" or "one or more," i.e., that a number of one element may be one in one embodiment, while a number of other elements may be present in multiple embodiments, and that the terms "a" and "an" are not to be interpreted as limiting the number.

Referring to fig. 1 to 4 of the drawings of the present application, an ambient light intensity detector 100 according to a first preferred embodiment of the present invention is disclosed in the following description, wherein the ambient light intensity detector 100 includes a light uniformizing portion 10, a light converging portion 20 and a sensing chip 30. The light converging portion 20 forms a light converging optical path 40. The dodging portion 10 is held in the light collecting optical path 40 formed by the light converging portion 20, wherein the dodging portion 10 is configured to dodge the reflected light of the object when the reflected light of the object held in a use environment passes through so as to form a light to be detected, and the light converging portion 20 is configured to converge the light to be detected to the light collecting optical path 40. The sensing chip 30 has a sensing surface 31, wherein the sensing surface 31 of the sensing chip 30 is held in the light converging optical path 40 formed by the light converging portion 20, and the sensing chip 30 is configured to allow the sensing surface 31 of the sensing chip 30 to receive the light to be detected converged to the light converging optical path 40 by the light converging portion 20, and to detect the light to be detected in the sensing chip 30, so as to detect the light intensity of the usage environment by detecting the light to be detected.

The ambient light intensity detector 100 is configured to perform the dodging process on the reflected light of the object held in the use environment by the dodging portion 10 so as to lose the directivity of the reflected light of the object and form the light to be detected, thereby blurring the reflected light of the object, and in this way, the adverse effect of the surface reflectivity of the object on the detection result of the ambient light intensity detector 100 can be reduced. That is to say, the ambient light intensity detector 100 of the present invention can weaken or even avoid the adverse effect of the specific object on the detection result of the ambient light intensity detector 100 by the way of the dodging portion 10 performing dodging on the reflected light of the specific object in the service environment, so that the detection result of the ambient light intensity detector 100 matches with the actual state of the service environment.

The ambient light intensity detector 100 can increase the detection range of the ambient light intensity detector 100 by converging the light to be detected to the light converging optical path 40 through the light converging portion 20, and in this way, the adverse effect of the surface reflectivity of the object on the detection result of the ambient light intensity detector 100 can be further reduced.

With continued reference to fig. 1 to 4, in the preferred example of the ambient light intensity detector 100 of the present invention, the light converging portion 20 is a light-transmitting element to allow the light to be detected to be refracted by the light converging portion 20 and converged to the light converging light path 40 after passing through the light converging portion 20, wherein the light converging portion 20 has a light incident side 21 and a light emergent side 22 corresponding to the light incident side 21, wherein the light homogenizing portion 10 is maintained on the light converging light path 40 at the light incident side 21 of the light converging portion 20, and the sensing chip 30 is maintained on the light emergent side 22 of the light converging portion 20 to maintain the sensing surface 31 of the sensing chip 30 on the light converging light path 40, so that the reflected light of the object maintained in the use environment is homogenized to form the light to be detected when passing through the light homogenizing portion 10, and the light to be detected is refracted by the light converging portion 20 and converged to the light converging light after passing through the light converging portion 20 An optical path 40 to be received by the sensing face 31 of the sensing chip 30.

Preferably, the light converging portion 20 is a fresnel lens to reduce the thickness dimension of the light converging portion 20 and the manufacturing cost of the ambient light intensity detector 100. Specifically, the light converging portion 20 has a light incident surface 23 and a light exiting surface 24 corresponding to the light incident surface 23, wherein the light incident surface 23 of the light converging portion 20 is the surface of the light converging portion 20 on the light incident side 21, and the light incident surface 23 has a plurality of concentric raised insections, accordingly, the light exiting surface 24 of the light converging portion 20 is the surface of the light converging portion 20 on the light exiting side 22, and the light exiting surface 24 is a planar light exiting surface. The light to be detected can be emitted into the light converging portion 20 from the light incident surface 23 of the light converging portion 20, and emitted out of the light converging portion 20 from the light emitting surface 24 of the light converging portion 20, and is converged by the light converging portion 20 to the light converging optical path 40, so as to be subsequently received by the sensing surface 31 of the sensing chip 30.

Further, the light converging portion 20 has a central axis 201, wherein a cross-sectional view of the light converging portion 20 at any position in the thickness direction is a central symmetrical view, and a symmetrical center is the central axis 201 of the light converging portion 20, in such a way, the light to be detected formed by the reflected light around the ambient light intensity detector 100 can be refracted by the light converging portion 20 without distinction and converged to the light converging optical path 40, so as to improve the accuracy of the light intensity of the use environment detected by the ambient light intensity detector 100.

Referring to fig. 1 to 4, the light uniformizing section 10 has an incident side 11 and an exit side 12 corresponding to the incident side 11, wherein the light uniformizing section 10 is held in the light converging optical path 40 formed in the light converging section 20 in such a manner that the exit side 12 of the light uniformizing section 10 faces the incident side 21 of the light converging section 20, so that the reflected light of the object held in the use environment is incident on the incident side 11 of the light uniformizing section 10 and exits on the exit side 12, so as to perform a light uniformizing process on the reflected light of the object by the light uniformizing section 10 to form the light to be detected, the light to be detected is incident on the incident side 21 of the light converging section 20 and exits on the exit side 22, so as to converge the light to be detected to the light converging optical path 40 by refraction by the light converging section 20.

Preferably, the cross-sectional pattern of the uniform light portion 10 at any position in the thickness direction is a central symmetrical pattern, the symmetrical center being the central axis 201 of the light converging portion 20, in such a way that the reflected light from objects around the uniform light portion 10 can be uniformly processed by the uniform light portion 10 without distinction to form the light to be detected.

That is, in the preferred example of the ambient light intensity detector 100 shown in fig. 1 to 4, the central axis 201 of the light converging portion 20 passes through the center of the light homogenizing portion 10 and the center of the light converging portion 20, so that the cross-sectional pattern of the light homogenizing portion 10 at any position in the thickness direction and the cross-sectional pattern of the light converging portion 20 at any position in the thickness direction are both centrosymmetric patterns, the center of symmetry being the central axis 201 of the light converging portion 20.

Further, the uniform light portion 10 has an incident surface 13 and an exit surface 14 corresponding to the incident surface 13, wherein the incident surface 13 of the uniform light portion 10 is the surface of the uniform light portion 10 on the incident side 11, and correspondingly, the exit surface 14 of the uniform light portion 10 is the surface of the uniform light portion 10 on the exit side 12. The reflected light of the object enters the light homogenizing unit 10 from the incident surface 13 of the light homogenizing unit 10, and exits the light homogenizing unit 10 from the exit surface 14 of the light homogenizing unit 10 to form the light to be detected.

It is worth mentioning that the types of the incident surface 13 and the exit surface 14 of the light uniformizing portion 10 are not limited in the ambient light intensity detector 100 of the present invention, for example, the incident surface 13 and the exit surface 14 of the light uniformizing portion 10 may be both smooth surfaces, or the incident surface 13 and the exit surface 14 of the light uniformizing portion 10 may be both rough surfaces, or one of the incident surface 13 and the exit surface 14 of the light uniformizing portion 10 may be a smooth surface and the other may be a rough surface.

It should be noted that although in the preferred example of the ambient light intensity detector 100 shown in fig. 1 to 4, the incident surface 13 and the emergent surface 14 of the light uniformizing portion 10 are both planar, it should be understood by those skilled in the art that the specific examples of the ambient light intensity detector 100 shown in fig. 1 to 4 are only used for illustrating the contents and features of the ambient light intensity detector 100 of the present invention, and should not be considered as limiting the contents and scope of the ambient light intensity detector 100 of the present invention. That is, in some examples of the ambient light intensity detector 100 of the present invention, each of the incident surface 13 and the exit surface 14 of the light uniformizing portion 10 may be an arc surface, such as a convex arc surface or a concave arc surface, or one of the incident surface 13 and the exit surface 14 of the light uniformizing portion 10 may be a flat surface and the other may be an arc surface.

With continued reference to fig. 1 to 4, a gap 101 is provided between the exit surface 14 of the light uniformizing portion 10 and the entrance surface 23 of the light converging portion 20. In other words, the gap 101 of the ambient light intensity detector 100 is formed between the emission surface 14 of the light uniformizing section 10 and the incident surface 23 of the light converging section 20. The light to be detected emitted from the emitting surface 14 of the light uniformizing portion 10 is transmitted in the gap 101, and then enters the light converging portion 20 from the light incident surface 23 of the light converging portion 20, wherein a gas (such as but not limited to air) is maintained in the gap 101, so that the energy loss of the light to be detected when the light to be detected is converged to the light converging optical path 40 by the light converging portion 20 is reduced, and the accuracy of the light intensity of the use environment detected by the ambient light intensity detector 100 is further improved.

Optionally, in another preferred example of the ambient light intensity detector 100 of the present invention, the emergent surface 14 of the dodging portion 10 and the incident surface 23 of the light converging portion 20 are attached to each other, so that the light to be detected emergent from the emergent surface 14 of the dodging portion 10 can directly enter the light converging portion 20 from the incident surface 23 of the light converging portion 20.

Further, with continued reference to fig. 1 to 4, in this preferred example of the ambient light intensity detector 100 of the present invention, the ambient light intensity detector 100 includes a housing 50, the housing 50 further includes a cylindrical housing 51, wherein the housing 51 has a high end 511, a low end 512 corresponding to the high end 511, and a containing cavity 513 extending from the low end 512 to the high end 511, wherein the light homogenizing part 10, the light converging part 20, and the sensing chip 30 are held in the containing cavity 513 of the housing 51 along the height direction of the housing 51, and the housing 51 defines a detection environment 102 to avoid interference of external light with the detection result of the ambient light intensity detector 100.

Specifically, the homogeneous light portion 10 is held in the accommodating chamber 513 of the housing 51 such that a side wall of the homogeneous light portion 10 is attached to an inner wall of the housing 51, and the incident surface 13 of the homogeneous light portion 10 is held outside the housing 51. The light-collecting portion 20 is held in the accommodating chamber 513 of the housing 51 such that a side wall of the light-collecting portion 20 is attached to an inner wall of the housing 51. The sensing chip 30 is held in the accommodating cavity 513 of the housing 51 in a suspended manner, and the sensing surface 31 of the sensing chip 30 faces the light exit side 24 of the light converging portion 20, and the central axis 201 of the light converging portion 20 passes through the center of the sensing surface 31 of the sensing chip 30. When the ambient light intensity detector 100 detects the light intensity of the usage environment, the ambient light is prevented from entering the accommodating chamber 513 of the housing 51 from the peripheral wall of the housing 51, and is only allowed to enter the accommodating chamber 513 of the housing 51 from the incident side 11 of the light uniformizing portion 10, in such a way that the sensing surface 31 of the sensing chip 30 is allowed to receive only the light to be detected which is converged to the light converging light path 40 by the light converging portion 20, thereby avoiding the interference of the ambient light with the detection result of the ambient light intensity detector 100.

Further, with continued reference to fig. 1 to 4, in this preferred example of the ambient light intensity detector 100 of the present invention, the ambient light intensity detector 100 includes a circuit board 60, wherein the circuit board 60 is held in the accommodating cavity 513 of the housing 51, and the sensing chip 30 is held in the accommodating cavity 513 of the housing 51 in a manner of being attached to the circuit board 60 in an air-suspending manner.

Preferably, the extending direction of the circuit board 60 is consistent with the height direction of the housing 51, so that the circuit board 60 extends along the height direction of the housing 51, wherein the plane where the sensing surface 31 of the sensing chip 30 is located is perpendicular to the extending direction of the circuit board 60, so that the sensing surface 31 of the sensing chip 30 can face the light emitting side 24 of the light collecting part 20. Optionally, the extending direction of the circuit board 60 is perpendicular to the height direction of the housing 51, so that the plane where the sensing surface 31 of the sensing chip 30 is located coincides with the extending direction of the circuit board 60, so that the sensing surface 31 of the sensing chip 30 can face the light emitting side 24 of the light converging portion 20.

The housing 51 further includes a cover 52, the cover 52 having a through hole 521, wherein the receiving cavity 513 of the housing 51 extends from the lower end 512 to the upper end 511 to penetrate the upper end 511 and the lower end 512, wherein after the circuit board 60 is mounted in the receiving cavity 513 of the housing 51, the cover 52 is mounted in the receiving cavity 513 of the housing 51 to close an upper opening of the receiving cavity 513 of the housing 51 by the cover 52, wherein an electric wire is allowed to extend to the receiving cavity 513 of the housing 51 through the through hole 521 of the cover 52 and is electrically connected to the circuit board 60.

Further, the housing 51 has at least two card slots 514, wherein each card slot 514 is formed on the peripheral wall of the housing 51 at the high end 511 of the housing 51, so that each card slot 514 communicates with the accommodating chamber 513. The cover 52 includes a cover body 522, at least two mounting arms 523 extending from the cover body 522, and a locking protrusion 524 protruding from a free end of each mounting arm 523. The cover 52 is mounted to the high end 511 of the housing 51 in a manner that each mounting arm 523 of the cover 52 first enters an upper opening of the accommodating chamber 513 of the housing 51, so that each locking protrusion 524 of the cover 52 can be automatically locked into each locking groove 514 of the housing 51 under the elastic action of each mounting arm 523, thereby closing the upper opening of the accommodating chamber 513 of the housing 51 by the cover 52.

With continued reference to fig. 1 to 4, the housing 50 further includes a first mounting ring 53 and a second mounting ring 54, the inner wall of the first mounting ring 53 and the inner wall of the second mounting ring 54 are respectively provided with threads, wherein the outer wall of the housing 51 is provided with threads, wherein the first mounting ring 53 is mounted to the housing 51 in a manner that the threads of the inner wall of the first mounting ring 53 and the threads of the outer wall of the housing 51 are engaged with each other, and correspondingly, the second mounting ring 54 is mounted to the housing 51 in a manner that the threads of the inner wall of the second mounting ring 54 and the threads of the outer wall of the housing 51 are engaged with each other, wherein the first mounting ring 53 and the second mounting ring 54 are capable of cooperatively mounting the ambient light intensity detector 100 on an attachment.

For example, the attachment may be a ceiling, the attachment has a mounting hole, the diameter of the outer wall of the housing 51 is smaller than or equal to the diameter of the attachment, and the diameter of the outer wall of the first mounting ring 53 and the diameter of the outer wall of the second mounting ring 54 are both larger than the diameter of the attachment. When the ambient light intensity detector 100 is attached to the attachment, first, the second mounting ring 54 is attached to the housing 51; secondly, allowing the high end 511 of the housing 51 to pass through the mounting hole of the attachment; third, the first mounting ring 53 is mounted on the housing 51, and the ambient light intensity detector 100 is mounted on the attachment so that the attachment is sandwiched between the first mounting ring 53 and the second mounting ring 54 on both sides of the attachment.

Alternatively, in another preferred example of the ambient light intensity detector 100 of the present invention, the first mounting ring 53 is integrally formed with the housing 51, and the second mounting ring 54 is screwed to the housing 51; or the first mounting ring 53 is screwed to the housing 51, and the second mounting ring 54 is integrally formed with the housing 51.

Further, with continued reference to fig. 1-4, in this preferred example of the ambient light intensity detector 100 of the present invention, the ambient light intensity detector 100 includes a controller 70, wherein the sensing chip 30 is controllably connected to the controller 70, wherein the controller 70 has a plurality of preset control bits for controlling the sensing value of the sensing chip 30. That is, each of the preset control bits of the controller 70 corresponds to a different sensing value of the sensing chip 30, i.e., each of the preset control bits of the controller 70 and each of the sensing values of the sensing chip 30 are in a one-to-one correspondence relationship.

In the present preferred example of the ambient light intensity detector 100, the controller 70 allows the ambient light intensity detector 100 to adjust at different time periods by providing a plurality of the preset control bits, when the controller 70 is at the same preset control bit, the sensing values of the sensing chips 30 are all consistent, so as to improve the controllability of the ambient light intensity detector 100. For example, the preset control bits of the controller 70 are "O number control bit", "1 number control bit", "2 number control bit", "3 number control bit", "4 number control bit", "5 number control bit", "6 number control bit", "7 number control bit", "8 number control bit", "9 number control bit", "a number control bit", "B number control bit", "C number control bit", "D number control bit", "E number control bit" and "F number control bit", respectively, wherein after the controller 70 is adjusted from "a number control bit" to any other control bit and then to "a number control bit", the sensing value of the sensing chip 30 is consistent when the controller is in "a number control bit" twice, thereby improving the controllability of the ambient light intensity detector 100.

In this preferred example of the ambient light intensity detector 100 of the present invention, the controller 70 allows the sensing values of the sensing chip 30 of a plurality of ambient light intensity detectors 100 to be unified by providing a plurality of the preset control bits, thereby improving the controllability of the ambient light intensity detector 100. For example, when two ambient light intensity detectors 100 are disposed in the usage environment, after the controllers 70 of the two ambient light intensity detectors 100 are adjusted to the "control bit No. a", the sensing values of the sensing chips 30 of the two ambient light intensity detectors 100 are unified, thereby improving the controllability of the ambient light intensity detectors 100.

Preferably, the controller 70 is a coded switch, such as a BCD coded switch, to facilitate adjusting the controller 70 between a plurality of the preset control bits. For example, in a specific example of the ambient light intensity detector 100, the controller 70 is provided as a BCD encoder switch including a plurality of resistor bodies, and the error of the controller 70 can be effectively reduced by making the controller 70 have a plurality of the preset control bits by selecting the resistances of the different resistor bodies and encoding the sensing values corresponding to the combined resistances of the plurality of resistor bodies in the BCD encoder switch. The controller 70 is provided with a control bit selector 71, and the preset control bit of the controller 70 can be switched by the control bit selector 71, so as to adjust the sensing value of the sensing chip 30.

Preferably, the control bit selector 71 is a rotary selector to reduce the volume of the controller 70. For example, the control bit selector 71 has a notch 711, allowing an operating device to operate the control bit selector 71 in such a way as to insert the notch 711 of the control bit selector 71. Alternatively, the control bit selector 71 may be driven by a motor.

Further, the housing 51 has a mounting groove 515, wherein the mounting groove 515 is formed at the lower end 512 of the housing 51 at the peripheral wall of the housing 51, so that the mounting groove 515 communicates with the accommodating chamber 513. The controller 70 is attached to the circuit board 60, and the controller 70 is mounted to the mounting groove 515 of the housing 51 outward from the accommodating chamber 513 of the housing 51, so that the circuit board 60 is held in the accommodating chamber 513 of the housing 51. After the controller 70 is mounted to the housing 51, the control bit selector 71 of the controller 70 is exposed to the outside of the housing 51 to allow the preset control bit of the controller 70 to be selected, thereby adjusting the sensing value of the sensing chip 30.

Alternatively, in a variation of the ambient light intensity detector 100 shown in fig. 5A, the light converging portion 20 is a condenser lens, wherein after the light to be detected is input from the light incident surface 23 of the light converging portion 20 and is output from the light emitting surface 24, the light to be detected is converged by the light converging portion 20 to the light converging optical path 40 to be subsequently received by the sensing surface 31 of the sensing chip 30. Alternatively, in another modified example of the ambient light intensity detector 100 of the present invention, the light converging portion 20 is a light converging lens group. That is, the light converging portion 20 may include two or more condensing lenses, and among the condensing lenses of the light converging portion 20, adjacent condensing lenses may have a gap therebetween or adjacent condensing lenses may be attached to each other.

Preferably, referring to fig. 5A, the light incident surface 23 of the light converging portion 20 is a convex light incident surface, and the light emitting surface 24 of the light converging portion 20 is a planar light emitting surface, so as to allow the light converging portion 20 to converge the light to be detected to the light converging optical path 40. Accordingly, the incident surface 13 of the homogeneous portion 10 is a convex incident surface, and the exit surface 14 of the homogeneous portion 10 is a concave exit surface, so that the shape of the homogeneous portion 10 matches the shape of the light-converging portion 20.

More preferably, the curvature of the incident surface 13 of the homogeneous light portion 10, the curvature of the exit surface 14 of the homogeneous light portion 10 and the curvature of the incident surface 23 of the light converging portion 20 are matched, so that the cross-sectional pattern of the homogeneous light portion 10 at any position in the thickness direction and the cross-sectional pattern of the light converging portion 20 at any position in the thickness direction are both centrosymmetric patterns, and the center of symmetry is the central axis 201 of the light converging portion 20, in such a way, the reflected light rays around the ambient light intensity detector 100 can pass through the homogeneous light portion 10 indiscriminately to form the light rays to be detected, and the light rays to be detected can be gathered to the light converging optical path 40 indiscriminately by the light converging portion 20, so as to improve the accuracy of the ambient light intensity detector 100 in detecting the light intensity of the use environment.

In addition, the gap 101 is formed between the light homogenizing unit 10 and the light converging unit 20, that is, the gap 101 is formed between the exit surface 14 of the light homogenizing unit 10 and the light incident surface 23 of the light converging unit 20, so that the light to be detected exiting from the exit surface 14 of the light homogenizing unit 10 is emitted from the light incident surface 23 of the light converging unit 20 into the light converging unit 20 after propagating in the gap 101, wherein a gas (such as but not limited to air) is maintained in the gap 101, so that the energy loss of the light to be detected when being converged to the light converging optical path 40 by the light converging unit 20 is reduced, thereby further improving the accuracy of the light intensity of the using environment detected by the ambient light intensity detector 100.

Alternatively, the light emitting surface 14 of the light uniformizing section 10 and the light incident surface 23 of the light converging section 20 are bonded to each other so as to avoid the gap 101 from being formed between the light emitting surface 14 of the light uniformizing section 10 and the light incident surface 23 of the light converging section 20.

Further alternatively, the uniform light portion 10 is formed on the light incident surface 23 of the light converging portion 20, that is, the light converging portion 20 is provided first, and then the uniform light portion 10 is formed on the light incident surface 23 of the light converging portion 20, so that the gap 101 is prevented from being formed between the light emitting surface 14 of the uniform light portion 10 and the light incident surface 23 of the light converging portion 20.

Alternatively, fig. 5B shows another modified example of the ambient light intensity detector 100, and unlike the ambient light intensity detector 100 shown in fig. 5A, in the preferred example of the ambient light intensity detector 100 shown in fig. 5B, the light emitting surface 24 of the light converging portion 20 is a concave light emitting surface, and the curvature of the light emitting surface 24 of the light converging portion 20 is smaller than that of the light incident surface 23, so as to allow the light converging portion 20 to converge the light to be detected to the light converging optical path 40.

That is, referring to fig. 5B, the incident surface 13 of the uniform light portion 10 is a convex incident surface, the emitting surface 14 of the uniform light portion 10 is a concave emitting surface, the incident surface 23 of the light converging portion 20 is a convex incident surface, and the emitting surface 24 of the light converging portion 20 is a concave emitting surface, wherein the curvature of the incident surface 13 of the uniform light portion 10, the curvature of the emitting surface 14 of the uniform light portion 10 and the curvature of the incident surface 23 of the light converging portion 20 are identical, and the curvature of the emitting surface 24 of the light converging portion 20 is smaller than the curvature of the incident surface 23 of the light converging portion 20.

Alternatively, fig. 5C shows another modified example of the ambient light intensity detector 100, and unlike the ambient light intensity detector 100 shown in fig. 5A, in the preferred example of the ambient light intensity detector 100 shown in fig. 5C, the light exit surface 24 of the light converging portion 20 is a convex light exit surface. That is, referring to fig. 5C, the incident surface 13 of the light uniformizing portion 10 is a convex incident surface, the emitting surface 14 of the light uniformizing portion 10 is a concave emitting surface, the incident surface 23 of the light converging portion 20 is a convex incident surface, and the emitting surface 24 of the light converging portion 20 is a convex emitting surface.

Alternatively, fig. 5D shows another modified example of the ambient light intensity detector 100, and unlike the ambient light intensity detector 100 shown in fig. 5A, in the preferred example of the ambient light intensity detector 100 shown in fig. 5D, the incident surface 13 of the light uniformizing portion 10 is a planar incident surface, the emitting surface 14 of the light uniformizing portion 10 is a planar emitting surface, the incident surface 23 of the light converging portion 20 is a planar incident surface, and the emitting surface 24 of the light converging portion 20 is a convex emitting surface, so that the light to be detected emitted from the emitting surface 14 of the light uniformizing portion 10 is converged to the light converging optical path 40 by the light converging portion 20.

Fig. 6 shows another modified example of the ambient light intensity detector 100, and unlike the ambient light intensity detector 100 shown in fig. 1 to 4, in the preferred example of the ambient light intensity detector 100 shown in fig. 6, the housing 50 is not provided with the first mounting ring 53. Specifically, the housing 50 includes the second mounting ring 54 and two mounting arms 55, wherein the second mounting ring 54 is mounted to the housing 51 in such a manner that the threads of the inner wall of the second mounting ring 54 and the threads of the outer wall of the housing 51 are engaged with each other, wherein the two mounting arms 55 respectively have a mounting end 551 and a free end 552 corresponding to the mounting end 551, the two mounting arms 55 are symmetrically disposed on both sides of the housing 51 in such a manner that the mounting end 551 of the mounting arm 55 is mounted to the high end 512 of the housing 51, and a clamping space can be formed between the two mounting arms 55 and the second mounting ring 54 for clamping the attachment. Preferably, the mounting end 551 of the mounting arm 55 is a torsion spring mounting end to allow the clamping space formed between the mounting arm 55 and the second mounting ring 54 to have a tendency to become smaller in size, thereby stably clamping the attachment.

Fig. 7A shows a constant light system according to a preferred embodiment of the present invention, wherein the constant light system includes one of the ambient light intensity detector 100, at least one lamp 200 and a control system 300, the ambient light intensity detector 100 and the lamp 200 are respectively connected to the control system 300, wherein the control system 300 is configured to control a state of the lamp 200 according to a detection result of the ambient light intensity detector 100, for example, the control system 300 is configured to control a brightness of the lamp 200 according to a detection result of the ambient light intensity detector 100, so as to keep a light intensity of the usage environment constant.

For example, in a preferred example of the constant light system of the present invention, the ambient light intensity detector 100 and the light fixture 200 are mounted adjacent to each other to a ceiling to allow the ambient light intensity detector 100 and the light fixture 200 to be maintained in the use environment.

It is worth mentioning that the type of control system 300 is not limited, for example, the control system 300 may be, but not limited to, a CPU that can be maintained in the use environment in a manner that it is mounted to or supported by the ceiling. Alternatively, the control system 300 may not be maintained in the use environment, wherein the control system 300 receives a signal representing the detection result of the ambient light intensity detector 100 through a network or other communication means, and sends a control signal to the luminaire 200 through a network or other means, so as to be able to control the state of the luminaire 200 according to the detection result of the ambient light intensity detector 100.

In particular, it will be understood by those skilled in the art that the control system 300 is matched to the controller 70 of the ambient light intensity detector 100, for example, when the controller 70 is configured with a MCU, such as a BCD-coded switch with MCU, the control system 300 is configured with PWM, 0/1-10V, DALi, I²C, and when the controller 70 is set as 0/1-10V control device, correspondingly, the control system 300 is set as control device with 0/1-10V control interface, after the constant light system is powered on, the ambient light intensity detector 100 continuously detects the ambient light intensity, wherein the controller 70 outputs different signals to the control system 300 according to the detection result of the ambient light intensity detector 100, the control system 300 adjusts the brightness of the light fixture 200 according to the signal provided by the controller 70, wherein when the detection result of the ambient light intensity 100 is lowWhen the sensing value set by the controller 70 is used, the lamp 200 is turned on by the control system 300, and when the detection result of the ambient light intensity 100 is higher than the sensing value set by the controller 70, the lamp 200 is turned down by the control system 300, so that when the intensity of the light to be detected changes, the control system 300 adjusts the change of the light emitting brightness of the lamp 200 by means of dynamic compensation according to the detection result of the ambient light intensity detector 100, so that the illuminance of the detected area is kept constant corresponding to the sensing value corresponding to the preset control bit.

It is also understood that the sensing values corresponding to the stepless adjustment and setting of the sliding potentiometer or the selection of the resistance of different resistive bodies and the combined resistance of a plurality of resistive bodies in the dial switch are directly used, i.e. the controller 70 can be set as a sliding potentiometer to select different sensing values in a stepless adjustment to different resistance bits, or as a dial switch to select different sensing values more precisely in a dial combination of different resistances, which does not limit the present invention, i.e. the controller 70 can also select different sensing values in other dial combinations known to those skilled in the art, such as generating preset control bits corresponding to different sensing values inside the MCU by the selection and combination of different I/O ports of the MCU, or generating a list or functional relationship of sensing values corresponding to different values in the MCU, therefore, different sensing values can be selected through different I/O ports or digitally combined dial combinations, and can be further selected in a manner of wirelessly transmitting a control command, which is not limited by the present invention.

In other words, the controller 70 is configured to have a plurality of the preset control bits, and each of the preset control bits corresponds to a sensing value, wherein the correspondence relationship between each of the preset control bits and the corresponding sensing value does not form a limitation of the present invention, that is, the controller 70 can be configured to adopt a stepless adjustment manner (e.g., the controller 70 is configured as a sliding potentiometer) so that the number of the preset control bits is not limited and corresponds to the corresponding sensing value in a one-to-one functional relationship. The controller 70 can also be configured to adjust the preset control bits in a hierarchical manner such that the preset control bits are in one-to-one tabular relationship with the corresponding sensed values. If the controller 70 is configured as a dial switch to select different sensing values by adjusting to different resistance bits in stages through dial combinations of different resistances; as described above, the controller 70 is provided as a BCD encoder switch including a plurality of resistor bodies, and different sensing values can be selected so that different resistor bodies can be selected and combined by the BCD encoder switch; if the preset control bits corresponding to different sensing values are generated in the MCU through the selection and combination of different I/O ports of the MCU; if the MCU generates a list or a functional relationship of the sensed values corresponding to different values, so that the controller 70 can receive a data command, and select different sensed values by a remote network transmission control, a remote controller control, or a manual software setting control, which is not limited in the present invention.

It is noted that, in some embodiments of the present invention, the control system 300 is integrated with the ambient light intensity detector 100, which is not limited by the present invention.

When the ambient light intensity detector 100 is installed in the usage environment, the distance between the sensing surface 31 of the sensing chip 30 of the ambient light intensity detector 100 and the light emitting surface 24 of the light converging portion 20 is adjusted to adjust the detection range of the ambient light intensity detector 100, so that the detection range of the ambient light intensity detector 100 matches the usage environment.

When the ambient light intensity detector 100 is installed in the usage environment, the preset control bits of the controller 70 are adjusted to adjust the sensing value of the sensing chip 30, wherein the sensing value of the sensing chip 30 is related to the light intensity of the usage environment. In other words, the sensing value of the sensing chip 30 corresponds to the light intensity of the usage environment desired by the user.

In the constant light system of the present invention, the ambient light intensity detector 100 is set to detect in real time the light intensity of the environment of use, wherein when the ambient light intensity detector 100 detects the light intensity of the environment of use is greater than the user's expectation, the control system 300 can dim the brightness of the lamp 200 automatically, when the ambient light intensity detector 100 detects the light intensity of the environment of use is less than the user's expectation, the control system 300 can dim the brightness of the lamp 200 automatically, and in this way, the light intensity of the environment of use can be kept constant.

Fig. 7B shows a modified example of the constant light system of the present invention, which is different from the constant light system shown in fig. 7A, in the preferred example of the constant light system shown in fig. 7B, the constant light system comprises a plurality of ambient light intensity detectors 100, a lamp 200 and a control system 300, wherein each of the ambient light intensity detectors 100 and the lamp 200 is respectively connected to the control system 300, and each of the ambient light intensity detectors 100 is respectively installed in different areas of the usage environment. In this preferred example of the constant light system, the constant light system detects the true light intensity of the use environment by each of the ambient light intensity detectors 100 distributed at different locations of the use environment.

In order to enable each ambient light intensity detector 100 to detect the actual light intensity of the usage environment, after each ambient light intensity detector 100 is installed in the usage environment, the sensing values of the sensing chip 30 of each ambient light intensity detector 100 need to be unified. In the constant light system of the present invention, the controller 70 of the ambient light intensity detector 100 provides a plurality of preset control bits, which are corresponding to each sensing value of the sensing chip 30 one by one for each preset control bit of the controller 70, therefore, every is installed the ambient light intensity detector 100 in after the use environment, every is adjusted the ambient light intensity detector 100 the controller 70 is the same as the preset control bits, every can be unified for the ambient light intensity detector 100 the sensing value of the sensing chip 30, so as to make every the ambient light intensity detector 100 detects the true light intensity of the use environment.

Referring to fig. 8A to 8C of the drawings of the present application, an ambient light intensity detector 100A according to a second preferred embodiment of the present invention is disclosed in the following description, wherein the ambient light intensity detector 100A includes a light uniformizing portion 10A, a light converging portion 20A, a sensing chip 30A and a light diverting portion 80A. The light converging portion 20A forms a light converging optical path 40A. The light uniformizing section 10A is held in the light converging optical path 40A formed by the light converging section 20A, wherein the light uniformizing section 10A is configured to uniformize the reflected light of the object held in a use environment when the reflected light passes through the object to form a light to be detected. The light converging portion 20A is configured to converge the light to be detected to the light converging optical path 40A. The light turning part 80A is configured to turn the light collecting optical path 40A, so that after the light to be detected is collected to the light collecting optical path 40A by the light collecting part 20A, the radiation direction of the light to be detected can be changed by the light turning part 80A. For example, in a specific example of the ambient light intensity detector 100A, the light turning part 80A is configured to turn the light collecting optical path 40A by 90 °, so that after the light to be detected is collected to the light collecting optical path 40A by the light collecting part 20A, the radiation direction of the light to be detected can be turned by 90 ° by the light turning part 80A and then continues to radiate. The sensing chip 30A has a sensing surface 31A, wherein the sensing surface 31A of the sensing chip 30A is held in the light converging optical path 40A formed by the light converging portion 20A, and the sensing chip 30A is configured to allow the sensing surface 31A of the sensing chip 30A to receive the light to be detected converged by the light converging portion 20A and deflected by the light deflecting portion 80A, and to detect the light to be detected in the sensing chip 30A subsequently, so as to detect the light intensity of the usage environment by detecting the light to be detected.

The ambient light intensity detector 100A performs the dodging process on the reflected light of the object held in the use environment by the dodging portion 10A so as to lose the directivity of the reflected light and form the light to be detected, thereby blurring the reflected light of the object, and in this way, the adverse effect of the surface reflectance of the object on the detection result of the ambient light intensity detector 100A can be reduced.

The ambient light intensity detector 100A can increase the detection range of the ambient light intensity detector 100A by converging the light to be detected to the light converging optical path 40A through the light converging portion 20A, so that the reflected light of more types of objects can pass through the light homogenizing portion 10A, and in this way, the adverse effect of the surface reflectivity of the objects on the detection result of the ambient light intensity detector 100A can be further reduced.

With continued reference to fig. 8A to 8C, in the preferred example of the ambient light intensity detector 100A of the present invention, the light converging portion 20A is a light-transmitting element to allow the light to be detected to be converged to the light converging light path 40A after passing through the light converging portion 20A, wherein the light converging portion 20A has a light incident side 21A and a light emitting side 22A corresponding to the light incident side 21A, wherein the light homogenizing portion 10A is held on the light incident side 21A of the light converging portion 20A in the light converging light path 40A, the light turning portion 80A is held on the light emitting side 22A of the light converging portion 20A, the sensing surface 31A of the photosensitive chip 30 is held on the light converging light path 40A, so that the reflected light of the object held in the use environment is homogenized to form the light to be detected when passing through the light homogenizing portion 10A, the light to be detected is converged to the light converging optical path 40A after passing through the light converging portion 20A and being changed in radiation direction by the light turning portion 80A, so as to be further received by the sensing surface 31A of the sensing chip 30A.

Preferably, the light converging portion 20A is a fresnel lens to reduce the thickness dimension of the light converging portion 20A and to reduce the manufacturing cost of the ambient light intensity detector 100A. Specifically, the light converging portion 20A has a light incident surface 23A and a light emergent surface 24A corresponding to the light incident surface 23A, wherein the light incident surface 23A of the light converging portion 20A is the surface of the light converging portion 20A on the light incident side 21A, and the light incident surface 23A has a plurality of concentric raised insections, and accordingly, the light emergent surface 24A of the light converging portion 20A is the surface of the light converging portion 20A on the light emergent side 22A, and the light emergent surface 24A is a planar light emergent surface. The light to be detected can be emitted into the light converging portion 20A from the light incident surface 23A of the light converging portion 20A, and can be emitted out of the light converging portion 20A from the light emitting surface 24A of the light converging portion 20A, and is converged to the light converging optical path 40A.

Further, the light converging portion 20A has a central axis 201A, wherein any cross-sectional pattern of the light converging portion 20A in the thickness direction is a central symmetrical pattern, and the symmetrical center is the central axis 201A of the light converging portion 20A, in such a way, the light to be detected formed by the reflected light around the ambient light intensity detector 100A can be converged to the light converging optical path 40A by the light converging portion 20A without distinction, so as to improve the accuracy of the light intensity of the use environment detected by the ambient light intensity detector 100A.

Preferably, any one of the cross-sectional patterns of the uniform light portion 10A in the thickness direction is a center symmetrical pattern having a center of symmetry being the central axis 201A of the light converging portion 20A, in such a manner that the reflected light around the ambient light intensity detector 100A can pass through the uniform light portion 10A without distinction to be subjected to the uniform light processing by the uniform light portion 10A to form the light to be detected.

Referring to fig. 8A to 8C, the light uniformizing section 10A has an incident side 11A and an exit side 12A corresponding to the incident side 11A, wherein the uniformizing section 10A is held in the converging optical path 40A formed in the converging section 20A in such a manner that the emission side 12A of the uniformizing section 10A faces the light entrance side 21A of the converging section 20A, so that the reflected light rays of the object held in the use environment enter at the incident side 11A of the floodlight section 10A and exit at the exit side 12A, so as to form the light to be detected by the light homogenizing part 10A to homogenize the reflected light, the light to be detected enters at the light entrance side 21A of the light collection portion 20A and exits at the light exit side 22A, so as to converge the light to be detected to the light converging optical path 40A by the light converging portion 20A.

Further, the homogeneous portion 10A has an incident surface 13A and an exit surface 14A corresponding to the incident surface 13A, wherein the incident surface 13A of the homogeneous portion 10A is a surface of the homogeneous portion 10A on the incident side 11A, and correspondingly, the exit surface 14A of the homogeneous portion 10A is a surface of the homogeneous portion 10A on the exit side 12A. The reflected light of the object enters the light uniformizing section 10A from the incident surface 13A of the light uniformizing section 10A, and exits the light uniformizing section 10A from the exit surface 14A of the light uniformizing section 10A to form the light to be detected.

It is worth mentioning that the type of the incident surface 13A and the exit surface 14A of the light uniformizing section 10A is not limited in the ambient light intensity detector of the present invention, for example, the incident surface 13A and the exit surface 14A of the light uniformizing section 10A may each be a smooth surface, or the incident surface 13A and the exit surface 14A of the light uniformizing section 10A may each be a rough surface, or one of the incident surface 13A and the exit surface 14A of the light uniformizing section 10A may be a smooth surface and the other may be a rough surface.

It should be noted that, although in the preferred example of the ambient light intensity detector 100A shown in fig. 8A to 8C, the incident surface 13A and the exit surface 14A of the light uniformizing portion 10A are both planar, it should be understood by those skilled in the art that the specific example of the ambient light intensity detector 100A shown in fig. 8A and 8B is only used to illustrate the content and features of the ambient light intensity detector 100A of the present invention, and should not be considered as limiting the content and scope of the ambient light intensity detector 100A of the present invention. That is, in some examples of the ambient light intensity detector 100A of the present invention, each of the incident surface 13A and the exit surface 14A of the light uniformizing portion 10A may be a curved surface, such as a convex curved surface or a concave curved surface, or one of the incident surface 13A and the exit surface 14A of the light uniformizing portion 10A may be a flat surface and the other may be a curved surface.

With continued reference to fig. 8A to 8C, a gap 101A is provided between the exit surface 14A of the light uniformizing portion 10A and the entrance surface 23A of the light converging portion 20A. In other words, the gap 101A is formed between the level lighting portion 10A and the light converging portion 20A. The light to be detected emitted from the emitting surface 14A of the light uniformizing portion 10A is transmitted through the gap 101A, and then enters the light converging portion 20A from the light incident surface 23A of the light converging portion 20A, wherein a gas (for example, air) is retained in the gap 101A, so that energy loss of the light to be detected when the light to be detected is converged to the light converging optical path 40A by the light converging portion 20A is reduced, and accuracy of the light intensity of the use environment detected by the ambient light intensity detector 100A is further improved.

Alternatively, in another preferred example of the ambient light intensity detector 100A of the present invention, the emergent surface 14A of the dodging portion 10A and the incident surface 23A of the converging portion 20A are attached to each other, so that the light to be detected emerging from the emergent surface 14A of the dodging portion 10A can directly emerge from the incident surface 23A of the converging portion 20A into the converging portion 20A.

With continuing reference to fig. 8A-8C of the drawings accompanying the present disclosure, the light diverting portion 80A is a reflective element that changes the radiation direction of the light to be detected by way of reflection. Specifically, the light diverter 80A has a reflecting surface 81A, wherein the light emitting surface 24A of the light converging portion 20A faces the reflecting surface 81A of the light diverter 80A to define an incident light path between the light emitting surface 24A of the light converging portion 20A and the reflecting surface 81A of the light diverter 80A, and the sensing surface 31A of the sensing chip 30A faces the reflecting surface 81A of the light diverter 80A to define an exit light path between the sensing surface 31A of the sensing chip 30A and the reflecting surface 81A of the light diverter 80A, wherein the light to be detected exiting from the light emitting surface 24A of the light converging portion 20A is reflected by the reflecting surface 81A of the light diverter 80A to be diverted after being radiated to the reflecting surface 81A of the light diverter 80A along the incident light path, the diverted light to be detected further radiates along the emergent light path to be subsequently received by the sensing surface 31A of the sensing chip 30A.

Preferably, in the specific example of the ambient light intensity detector 100A shown in fig. 8A to 8C, the light emitting surface 24A of the light converging portion 20A is a planar light emitting surface, the reflecting surface 81A of the light diverting portion 80A is a planar reflecting surface, and an included angle formed between a plane where the reflecting surface 81A of the light diverting portion 80A is located and a plane where the light emitting surface 24A of the light converging portion 20A is located is 45 °, and accordingly, an included angle formed between a plane where the reflecting surface 81A of the light diverting portion 80A is located and a plane where the sensing surface 31A of the sensing chip 30A is located is 45 ° so as to allow the light diverting portion 80A to divert the light to be detected at 90 °.

Alternatively, in a modified example of the ambient light intensity detector 100A, the reflecting surface 81A of the light diverting portion 80A may also be a curved surface, for example, the reflecting surface 81A of the light diverting portion 80A is a concave curved surface to allow the reflecting surface 81A of the light diverting portion 80A to further converge the light to be detected when reflecting the light to be detected, or the reflecting surface 81A of the light diverting portion 90 is a convex curved surface to allow the reflecting surface 81A of the light diverting portion 80A to diverge the light to be detected when reflecting the light to be detected.

Alternatively, in other examples of the ambient light intensity detector 100A of the present invention, the light turning part 80A is a refraction element that changes the radiation direction of the light to be detected by refraction. Specifically, the light turning part 80A is held on the light emitting side 22A of the light converging part 20A, wherein the incident light path is formed between the light turning part 80A and the light emitting surface 24A of the light converging part 20A, and the emergent light path is formed between the light turning part 80A and the sensing surface 31A of the sensing chip 30A, wherein the light to be detected emitted from the light emitting surface 24A of the light converging part 20A is refracted and turned after being radiated to the light turning part 80A along the incident light path, and the turned light to be detected is further radiated along the emergent light path to be subsequently received by the sensing surface 31A of the sensing chip 30A.

For example, the light diverting part 80A is a prism that can change the radiation direction of the light to be detected by refraction. Alternatively, the light diverting part 80A is a prism assembly that refractively changes the radiation direction of the light to be detected.

Further, with continued reference to fig. 8A to 8C, in this preferred example of the ambient light intensity detector 100A of the present invention, the ambient light intensity detector 100A includes a housing 50A, the housing 50A further includes a cylindrical housing 51A, wherein the housing 51A has a high end 511A, a low end 512A corresponding to the high end 511A, and a containing cavity 513A extending from the low end 512A to the high end 511A, wherein the homogenized light section 10A, the light converging section 20A and the light redirecting section 80A are held in the housing chamber 513A of the housing 51A along the height direction of the housing 51A, the sensing chip 30A is held in the accommodation chamber 513A of the housing 51A, the housing 51A defines a detection environment 102A to avoid interference of external light with the detection result of the ambient light intensity detector 100A.

Specifically, the homodyne portion 10A is held in the accommodating chamber 513A of the housing 51A in such a manner that a side wall of the homodyne portion 10A is attached to an inner wall of the housing 51A, and the incident side 11A of the homodyne portion 10A faces the outside of the housing 51A. The light converging portion 20A is attached to the accommodating chamber 513A of the housing 51A in such a manner that a side portion of the light converging portion 20A is attached to an inner wall of the housing 51A, and the light incident side 21A of the light converging portion 20A faces the light emitting side 12A of the light uniformizing portion 10A. The light redirecting portion 80A is mounted to an inner wall of the housing 51A, and the reflecting surface 81A of the light redirecting portion 80A faces the light exit side 22A of the light collection portion 20A to form the incident light path between the reflecting surface 81A of the light redirecting portion 80A and the light exit surface 24A of the light collection portion 20A. The sensing chip 30A is held in the accommodation chamber 513A of the housing 51A, and the sensing face 31A of the sensing chip 30A faces the reflection face 81A of the light diverting portion 80A to form the exit light path between the reflection face 81A of the light diverting portion 80A and the sensing face 31A of the sensing chip 30A. When the ambient light intensity detector 100A detects the light intensity of the usage environment, the external light is prevented from entering the accommodating chamber 513A of the housing 51A from the peripheral wall of the housing 51A, and is only allowed to enter the accommodating chamber 513A of the housing 51A from the incident side 11A of the light uniformizing portion 10A, in such a way that the sensing surface 31A of the sensing chip 30A is allowed to receive only the light to be detected converged to the light converging optical path 40A by the light converging portion 20A, thereby avoiding the interference of the external light with the detection result of the ambient light intensity detector 100A.

Alternatively, in a modified example of the ambient light intensity detector 100A of the present invention, the light redirecting part 80A and the housing 51A may be integrally formed, that is, the reflecting surface 81A may be formed on a part of the inner wall of the housing 51A.

Further, with continued reference to fig. 8A to 8C, in this preferred example of the ambient light intensity detector 100A of the present invention, the ambient light intensity detector 100A includes a circuit board 60A, wherein the sensing chip 30A is attached to the circuit board 60A, and the sensing surface 31A of the sensing chip 30A is parallel to the circuit board 60A, wherein the circuit board 60A is held in the accommodating cavity 513A of the housing 51A to allow the sensing chip 30A to be held in the accommodating cavity 513A of the housing 51A.

Preferably, the extending direction of the circuit board 60A coincides with the extending direction of the housing 51A, so that the circuit board 60A extends along the height direction of the housing 51A, wherein the sensing surface 51 of the sensing chip 30A is parallel to the extending direction of the circuit board 60A, in this way, the mounting area of the sensing chip 30A and the circuit board 60A can be increased, so as to ensure the stability of the position and angle of the sensing chip 30A.

The housing 50A further includes a cover 52A, the cover 52A having a through hole 521A, wherein the receiving cavity 513A of the housing 51A extends from the lower end 512A to the upper end 511A to penetrate through the upper end 511A and the lower end 512A, wherein after the circuit board 60A is mounted in the receiving cavity 513A of the housing 51A, the cover 52A is mounted in the receiving cavity 513A of the housing 51A to close an upper opening of the receiving cavity 513A of the housing 51A by the cover 52A, wherein an electric wire is allowed to extend through the through hole 521A of the cover 52A to the receiving cavity 513A of the housing 51A and is electrically connected to the circuit board 60A.

Further, the housing 51A has at least two card slots 514A, wherein each card slot 514A is formed on the peripheral wall of the housing 51A at the high end 511A of the housing 51A, respectively, so that each card slot 514A communicates with the accommodating chamber 513A, respectively. The cover 52A includes a cover body 522A, at least two mounting arms 523A extending from the cover body 522A, and a locking protrusion 524A protruding from a free end of each mounting arm 523A. The cover 52A is mounted on the high end 511A of the housing 51A in such a manner that each mounting arm 523A of the cover 52A first enters the upper opening of the accommodating chamber 513A of the housing 51A, so that each locking protrusion 524A of the cover 52A can be automatically locked into each locking slot 514A of the housing 51A under the elastic action of each mounting arm 523A, thereby closing the upper opening of the accommodating chamber 513A of the housing 51A by the cover 52A.

With continued reference to fig. 8A-8C, the housing 50A further includes a first mounting ring 53A and a second mounting ring 54A, the inner wall of the first mounting ring 53A and the inner wall of the second mounting ring 54A are respectively provided with threads, wherein the outer wall of the housing 51A is provided with threads, wherein the first mounting ring 53A is mounted to the housing 51A in such a manner that the threads of the inner wall of the first mounting ring 53A and the threads of the outer wall of the housing 51A are engaged with each other, and, accordingly, the second mounting ring 54A is mounted to the housing 51A in such a manner that the threads of the inner wall of the second mounting ring 54A and the threads of the outer wall of the housing 51A are engaged with each other, wherein the first mounting ring 53A and the second mounting ring 54A are capable of cooperatively mounting the ambient light intensity detector 100A to an attachment.

For example, the attachment may be a ceiling, the attachment has a mounting hole, the diameter of the outer wall of the housing 51A is smaller than or equal to the diameter of the attachment, and the diameter of the outer wall of the first mounting ring 53A and the diameter of the outer wall of the second mounting ring 54A are both larger than the diameter of the attachment. When the ambient light intensity detector 100A is attached to the attachment, first, the second attachment ring 54A is attached to the housing 51A; secondly, allowing the high end 511A of the housing 51A to pass through the mounting hole of the sticker; third, the first mounting ring 53A is mounted on the housing 51A, and the ambient light intensity detector 100A is mounted on the attachment so that the attachment is sandwiched between the first mounting ring 53A and the second mounting ring 54A on both sides of the attachment.

Alternatively, in another preferred example of the ambient light intensity detector 100A of the present invention, the first mounting ring 53A is integrally formed with the housing 51A, and the second mounting ring 54A is screwed to the housing 51A; alternatively, the first mounting ring 53A is screwed to the housing 51A, and the second mounting ring 54A is integrally formed with the housing 51A.

Further, with continued reference to fig. 8A to 8C, in the preferred example of the ambient light intensity detector 100A of the present invention, the ambient light intensity detector 100A includes a controller 70A, wherein the sensing chip 30A is controllably connected to the controller 70A, wherein the controller 70A has a plurality of preset control bits for controlling the sensing value of the sensing chip 30A. That is, each of the preset control bits of the controller 70A corresponds to a different sensing value of the sensing chip 30A, i.e., the preset control bits of the controller 70A and the sensing values of the sensing chip 30A are in a one-to-one correspondence relationship.

In this preferred example of the ambient light intensity detector 100A of the present invention, the controller 70A allows the ambient light intensity detector 100A to adjust at different time periods by providing a plurality of preset control bits, when the controller 70A is the same as the preset control bits, the sensing values of the sensing chip 30A are all consistent, so as to improve the controllability of the ambient light intensity detector 100A. For example, the preset control bits of the controller 70A are "O number control bit", "1 number control bit", "2 number control bit", "3 number control bit", "4 number control bit", "5 number control bit", "6 number control bit", "7 number control bit", "8 number control bit", "9 number control bit", "a number control bit", "B number control bit", "C number control bit", "D number control bit", "E number control bit" and "F number control bit", respectively, wherein after the controller 70A is adjusted from "a number control bit" to any other control bit and then to "a number control bit", the sensing value of the sensing chip 30A is consistent when the controller is in "a number control bit" twice, thereby improving the controllability of the ambient light intensity detector 100A.

In this preferred example of the ambient light intensity detector 100A of the present invention, the controller 70A allows the sensing values of the sensing chip 30A of the ambient light intensity detector 100A to be unified by providing a plurality of the preset control bits, thereby improving the controllability of the ambient light intensity detector 100A. For example, when two ambient light intensity detectors 100A are disposed in the usage environment, after the controllers 70A to the control bit "a" of the two ambient light intensity detectors 100A are adjusted, the sensing values of the sensing chips 30A of the two ambient light intensity detectors 100A are unified, thereby improving the controllability of the ambient light intensity detectors 100A.

Preferably, the controller 70A is a coded switch to facilitate adjusting the controller 70A between a plurality of the preset control bits. For example, in a specific example of the ambient light intensity detector 100A, the controller 70A may include a plurality of resistor bodies, and the controller 70A may have a plurality of the preset control bits by encoding a combination relationship of the plurality of resistor bodies, in such a manner that an error of the controller 70A can be effectively reduced. The controller 70A is provided with a control bit selector 71A, and the preset control bit of the controller 70A can be switched by the control bit selector 71A, so as to adjust the sensing value of the sensing chip 30A.

Preferably, the control bit selector 71A is a rotary selector to reduce the volume of the controller 70A. For example, the control bit selector 71A has a notch 711A to allow an operating device to operate the control bit selector 71A in a manner that allows the notch 711A of the control bit selector 71A to be inserted. Alternatively, the control bit selector 71A may be driven by a motor.

Further, the housing 51A has a mounting groove 515A, wherein the mounting groove 515A is formed in a peripheral wall of the housing 51A at the lower end 512A of the housing 51A such that the mounting groove 515A communicates with the accommodating chamber 513A. The controller 70A is attached to the circuit board 60A, and the controller 70A is mounted to the mounting groove 515A of the housing 51A outward from the accommodating chamber 513A of the housing 51A, so that the circuit board 60A is held in the accommodating chamber 513A of the housing 51A. After the controller 70A is mounted to the housing 51A, the control bit selector 71A of the controller 70A is exposed to the outside of the housing 51A to allow the preset control bit of the controller 70A to be selected.

Referring to fig. 9A to 9C of the drawings of the present application, an ambient light intensity detector 100B according to a third preferred embodiment of the present invention is disclosed in the following description, wherein the ambient light intensity detector 100B includes a light uniformizing portion 10B, a light converging portion 20B and a sensing chip 30B. The light converging portion 20B forms a light converging optical path 40B. The dodging portion 10B is held in the light collecting optical path 40B formed by the light converging portion 20B, wherein the dodging portion 10B is configured to dodge the reflected light of the object held in a use environment when the reflected light passes through to form a light to be detected, and the light converging portion 20B is configured to converge the light to be detected to the light collecting optical path 40B. The sensing chip 30B has a sensing surface 31B, wherein the sensing surface 31B of the sensing chip 30B is held in the light converging optical path 40B formed by the light converging portion 20B, and the sensing chip 30B is configured to allow the sensing surface 31B of the sensing chip 30B to receive the light to be detected converged to the light converging optical path 40B by the light converging portion 20B, and to be capable of detecting the light to be detected in the subsequent sensing chip 30B, so as to detect the light intensity of the using environment by detecting the light to be detected.

The ambient light intensity detector 100B can eliminate the directivity of the reflected light by homogenizing the reflected light of the object held in the use environment by the homogenizer 10B to form the light to be detected, thereby blurring the reflected light of the object, and in this way, the adverse effect of the surface reflectance of the object on the detection result of the ambient light intensity detector 100B can be reduced.

The ambient light intensity detector 100B can increase the detection range of the ambient light intensity detector 100B by converging the light to be detected to the light converging optical path 40B through the light converging portion 20B, so that the reflected light of more types of objects can pass through the light homogenizing portion 10B, and in this way, the adverse effect of the surface reflectivity of the objects on the detection result of the ambient light intensity detector 100B can be further reduced.

With continued reference to fig. 9A to 9C, in this preferred example of the ambient light intensity detector 100B of the present invention, the light converging portion 20B is a light reflecting element having an inward light converging reflective surface 25B, the sensing surface 31B of the sensing chip 30B faces the light converging reflective surface 25B of the light converging portion 20B, wherein the light converging portion 20B converges the light to be detected to the light converging optical path 40B by reflecting the light to be detected emitted from the light converging portion 10B by the light converging reflective surface 25B of the light converging portion 20B, so that the sensing surface 31B of the sensing chip 30B receives the light to be detected converged to the light converging optical path 40B.

Further, the homocline portion 10B has an incident side 11B and an exit side 12B corresponding to the incident side 11B, wherein the homogeneous portion 10B is held in the light collecting optical path 40B formed in the light collecting portion 20B so that the light emitting side 12B of the homogeneous portion 10B faces the light collecting reflection surface 25B of the light collecting portion 20B, so that the reflected light rays of the object kept in the use environment enter at the incident side 11B of the floodlight section 10B and exit at the exit side 12B, so as to form the light to be detected by the light homogenizing part 10B to homogenize the reflected light, the light to be detected is converged to the light converging optical path 40B in a manner of being reflected by the light converging reflecting surface 25B of the light converging portion 20B, so that, subsequently, the sensing surface 31B of the sensing chip 30B receives the light to be detected converged to the light converging optical path 40B.

Further, the uniform light portion 10B has an incident surface 13B and an exit surface 14B corresponding to the incident surface 13B, wherein the incident surface 13B of the uniform light portion 10B is the surface of the uniform light portion 10B on the incident side 11B, and correspondingly, the exit surface 14B of the uniform light portion 10B is the surface of the uniform light portion 10B on the exit surface 14B. The reflected light of the object enters the light uniformizing section 10B from the incident surface 13B of the light uniformizing section 10B, and exits the light uniformizing section 10B from the exit surface 14B of the light uniformizing section 10B to form the light to be detected.

It is worth mentioning that the type of the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B is not limited in the ambient light intensity detector of the present invention, for example, the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B may both be a smooth surface, or the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B may both be a rough surface, or one of the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B may be a smooth surface and the other may be a rough surface.

It should be noted that although in the preferred example of the ambient light intensity detector 100B shown in fig. 9A to 9C, the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B are both planar, it should be understood by those skilled in the art that the specific example of the ambient light intensity detector 100B shown in fig. 9A to 9C is only used for illustrating the contents and features of the ambient light intensity detector 100B of the present invention, and should not be construed as limiting the contents and scope of the ambient light intensity detector 100B of the present invention. That is, in some examples of the ambient light intensity detector 100B of the present invention, each of the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B may be a curved surface, such as a convex curved surface or a concave curved surface, or one of the incident surface 13B and the exit surface 14B of the light uniformizing portion 10B may be a flat surface and the other may be a curved surface.

Further, with continued reference to fig. 9A to 9C, in this preferred example of the ambient light intensity detector 100B of the present invention, the ambient light intensity detector 100B includes a housing 50B, the housing 50B further includes a cylindrical housing 51B, wherein the housing 51B has a high end 511B, a low end 512B corresponding to the high end 511B, and a containing cavity 513B extending from the low end 512B to the high end 511B, wherein the light homogenizing part 10B, the sensing chip 30B, and the light converging part 20B are held in the containing cavity 513B of the housing 51B along the height direction of the housing 51B, and the housing 51B defines a detection environment 102B to avoid interference of external light with the detection result of the ambient light intensity detector 100B.

Specifically, the floodlight section 10B is held in the housing chamber 513B of the housing 51B such that a side wall of the floodlight section 10B is attached to an inner wall of the housing 51B, and the floodlight section 20B is held in the housing chamber 513B of the housing 51B such that a side wall of the floodlight section 20B is attached to an inner wall of the housing 51B, and the incident side 11B of the floodlight section 10B faces the outside of the housing 51B. The sensing chip 30B is held in the accommodating chamber 513B of the housing 51B in a suspended manner, and the sensing surface 31B of the sensing chip 30B faces the light collecting reflection surface 25B of the light collecting part 20B, and the central axis 201B of the light collecting part 20B passes through the center of the sensing surface 31B of the sensing chip 30B. When the ambient light intensity detector 100B detects the light intensity of the usage environment, the external light is prevented from entering the accommodating chamber 513B of the housing 51B from the peripheral wall of the housing 51B, and is only allowed to enter the accommodating chamber 513B of the housing 51B from the incident side 11B of the light uniformizing portion 20, in such a way that the sensing surface 31B of the sensing chip 30B is allowed to receive only the light to be detected which is converged to the light converging light path 40B by the light converging portion 20B, thereby avoiding the interference of the external light with the detection result of the ambient light intensity detector 100B.

Further, with continued reference to fig. 9A to 9C, in this preferred example of the ambient light intensity detector 100B of the present invention, the ambient light intensity detector 100B includes a circuit board 60B, wherein the circuit board 60B is held in the accommodating cavity 513B of the housing 51B, and wherein the sensing chip 30B is held in the accommodating cavity 513B of the housing 51B in a manner of being attached to the circuit board 60B in a suspended manner.

Preferably, the extending direction of the circuit board 60B is consistent with the height direction of the housing 51B, so that the circuit board 60B extends along the height direction of the housing 51B, wherein the sensing surface 31B of the sensing chip 30B is perpendicular to the extending direction of the circuit board 60B, so that the sensing surface 31B of the sensing chip 30B can face the light collecting reflection surface 25B of the light collecting part 20B. Alternatively, the extending direction of the circuit board 60B is perpendicular to the height direction of the housing 51B, so that the sensing surface 31B of the sensing chip 30B coincides with the extending direction of the circuit board 60B, so that the sensing surface 31B of the sensing chip 30B can face the light converging reflecting surface 25B of the light converging portion 20B.

The housing 50B further includes a cover 52B, the cover 52B having a through hole 521B, wherein the receiving cavity 513B of the housing 51B extends from the lower end 512B to the upper end 511B to penetrate the upper end 511B and the lower end 512B, wherein after the circuit board 60B is mounted in the receiving cavity 513B of the housing 51B, the cover 52B is mounted in the receiving cavity 513B of the housing 51B to close an upper opening of the receiving cavity 513B of the housing 51B by the cover 52B, wherein an electric wire is allowed to extend through the through hole 521B of the cover 52B to the receiving cavity 513B of the housing 51B and is electrically connected to the circuit board 60B.

Further, the housing 51B has at least two card slots 514B, wherein each card slot 514B is formed in the peripheral wall of the housing 51B at the high end 511B of the housing 51B, respectively, so that each card slot 514B communicates with the accommodating chamber 513B, respectively. The cover 52B includes a cover body 522B, at least two mounting arms 523B extending from the cover body 522B, and a locking protrusion 524B protruding from a free end of each mounting arm 523B. The cover 52B is mounted at the high end 511B of the housing 51B in such a manner that each mounting arm 523B of the cover 52B first enters an upper opening of the accommodating chamber 513B of the housing 51B, so that each locking protrusion 524B of the cover 52B can be automatically locked into each locking groove 514B of the housing 51B under the elastic action of each mounting arm 523B, thereby closing the upper opening of the accommodating chamber 513B of the housing 51B by the cover 52B.

With continued reference to fig. 9A-9C, the housing 50B further includes a first mounting ring 53B and a second mounting ring 54B, the inner wall of the first mounting ring 53B and the inner wall of the second mounting ring 54B are respectively provided with threads, wherein the outer wall of the housing 51B is provided with threads, wherein the first mounting ring 53B is mounted to the housing 51B in such a manner that the threads of the inner wall of the first mounting ring 53B and the threads of the outer wall of the housing 51B are engaged with each other, and, accordingly, the second mounting ring 54B is mounted to the housing 51B in such a manner that the threads of the inner wall of the second mounting ring 54B and the threads of the outer wall of the housing 51B are engaged with each other, wherein the first mounting ring 53B and the second mounting ring 54B are capable of cooperatively mounting the ambient light intensity detector 100B to an attachment.

For example, the attachment may be a ceiling, the attachment has a mounting hole, the diameter of the outer wall of the housing 51B is smaller than or equal to the diameter of the attachment, and the diameter of the outer wall of the first mounting ring 53B and the diameter of the outer wall of the second mounting ring 54B are both larger than the diameter of the attachment. When the ambient light intensity detector 100B is attached to the attachment, first, the second attachment ring 54B is attached to the housing 51B; secondly, allowing the high end 511B of the housing 51B to pass through the mounting hole of the sticker; third, the first mounting ring 53B is mounted on the housing 51B, and the ambient light intensity detector 100B is mounted on the attachment so that the attachment is sandwiched between the first mounting ring 53B and the second mounting ring 54B on both sides of the attachment.

Alternatively, in another preferred example of the ambient light intensity detector 100B of the present invention, the first mounting ring 53B is integrally formed with the housing 51B, and the second mounting ring 54B is screwed to the housing 51B; alternatively, the first mounting ring 53B is screwed to the housing 51B, and the second mounting ring 54B is integrally formed with the housing 51B.

Further, with continued reference to fig. 9A to 9C, in the preferred example of the ambient light intensity detector 100B of the present invention, the ambient light intensity detector 100B includes a controller 70B, wherein the sensing chip 30B is controllably connected to the controller 70B, wherein the controller 70B has a plurality of preset control bits for controlling the sensing value of the sensing chip 30B. That is, each of the preset control bits of the controller 70B corresponds to a different sensing value of the sensing chip 30B, i.e., the preset control bits of the controller 70B and the sensing values of the sensing chip 30B are in a one-to-one correspondence relationship.

In this preferred example of the ambient light intensity detector 100B of the present invention, the controller 70B allows the ambient light intensity detector 100B to adjust at different time periods by providing a plurality of preset control bits, when the controller 70B is the same as the preset control bits, the sensing values of the sensing chip 30B are all consistent, so as to improve the controllability of the ambient light intensity detector 100B. For example, the preset control bits of the controller 70B are "O number control bit", "1 number control bit", "2 number control bit", "3 number control bit", "4 number control bit", "5 number control bit", "6 number control bit", "7 number control bit", "8 number control bit", "9 number control bit", "a number control bit", "B number control bit", "C number control bit", "D number control bit", "E number control bit" and "F number control bit", respectively, wherein after the controller 70B is adjusted from "a number control bit" to any other control bit and then to "a number control bit", the sensing values of the sensing chip 30B are consistent when the controller is in "a number control bit" twice, thereby improving the controllability of the ambient light intensity detector 100B.

In this preferred example of the ambient light intensity detector 100B of the present invention, the controller 70B allows the sensing values of the sensing chip 30B of the ambient light intensity detector 100B to be unified by providing a plurality of the preset control bits, thereby improving the controllability of the ambient light intensity detector 100B. For example, when two ambient light intensity detectors 100B are disposed in the usage environment, after the controllers 70B of the two ambient light intensity detectors 100B are adjusted to the "control bit No. a", the sensing values of the sensing chips 30B of the two ambient light intensity detectors 100B are unified, thereby improving the controllability of the ambient light intensity detectors 100B.

Preferably, the controller 70B is a coded switch to facilitate adjusting the controller 70B between a plurality of the preset control bits. For example, in a specific example of the ambient light intensity detector 100B, the controller 70B may include a plurality of resistor bodies, and the controller 70B may have a plurality of the preset control bits by encoding a combination relationship of the plurality of resistor bodies, in such a manner that an error of the controller 70B can be effectively reduced. The controller 70B is provided with a control bit selector 71B, and the preset control bit of the controller 70B can be switched by the control bit selector 71B, so as to adjust the sensing value of the sensing chip 30B.

Preferably, the control bit selector 71B is a rotary selector to reduce the volume of the controller 70B. For example, the control bit selector 71B has a notch 711B to allow an operating device to insert into the notch 711B of the control bit selector 71B to operate the control bit selector 71B. Alternatively, the control bit selector 71B may be driven by a motor.

Further, the housing 51B has a mounting groove 515B, wherein the mounting groove 515B is formed on the peripheral wall of the housing 51B at the lower end 512B of the housing 51B, so that the mounting groove 515B communicates with the accommodating chamber 513B. The controller 70B is attached to the circuit board 60B, and the controller 70B is mounted to the mounting groove 515B of the housing 51B outward from the accommodating chamber 513B of the housing 51B, so that the circuit board 60B is held in the accommodating chamber 513B of the housing 51B. After the controller 70B is mounted to the housing 51B, the control bit selector 71B of the controller 70B is exposed to the outside of the housing 51B to allow the preset control bit of the controller 70B to be selected.

(A) losing the directivity of the reflected light of the object kept in a use environment to form a light to be detected;

(B) converging the light to be detected to a light converging light path 40; and

(C) the light to be detected is received at the light converging light path 40 by a sensing surface 31 of a sensing chip 30, so as to allow the sensing chip 30 to detect the light intensity of the use environment by detecting the light to be detected.

Specifically, in the step (a), the reflected light of the object kept in the use environment is allowed to pass through a light uniformizing section 10, so that the reflected light of the object is processed by the light uniformizing section 10 to lose directivity, thereby forming the light to be detected.

In the step (B), the detection method allows the light to be detected to be refracted so as to converge the light to be detected to the light converging optical path 40. Or the detection method allows the light to be detected to be reflected so as to converge the light to be detected to the light converging light path 40.

According to another aspect of the present invention, the present invention further provides a method for manufacturing the ambient light intensity detector 100, wherein the method comprises the following steps:

(a) an accommodating chamber 513 for arranging a light converging portion 20 and a light homogenizing portion 10 in sequence in a housing 51; and

(b) a circuit board 60 with a sensing chip 30 attached thereto is mounted in the accommodating cavity 513 of the housing 51 from a high end 511 of the housing 51, wherein a sensing surface 31 of the sensing chip 30 is held in a light converging optical path 40 formed by the light converging portion 20, so as to obtain the ambient light intensity detector 100.

In a preferred example of the manufacturing method, the light converging portion 20 and the light homogenizing portion 10 are sequentially installed in the accommodating chamber 513 of the housing 51 from a lower end 512 of the housing 51, so as to arrange the light converging portion 20 and the light homogenizing portion 10 in the accommodating chamber 513 of the housing 51. That is, the housing 51, the light converging portion 20, and the light uniformizing portion 10 are each prefabricated, wherein the light converging portion 20 is first installed in the accommodating chamber 513 of the housing 51 from the lower end 512 of the housing 51, and the light uniformizing portion 10 is second installed in the accommodating chamber 513 of the housing 51 from the lower end 512 of the housing 51, and the incident surface 13 of the light uniformizing portion 10 is exposed to the outside of the housing 51.

In another preferred example of the manufacturing method, the light converging portion 20 is firstly formed in the accommodating chamber 513 of the housing 51, and then the light homogenizing portion 10 is installed in the accommodating chamber 513 of the housing 51 from the lower end 512 of the housing 51, so as to dispose the light converging portion 20 and the light homogenizing portion 10 in the accommodating chamber 513 of the housing 51. That is, the light converging portion 20 is formed in the accommodating chamber 513 of the housing 51 after the housing 51 is provided, the light homogenizing portion 10 is prepared, and after the light converging portion 20 is formed in the accommodating chamber 513 of the housing 51, the light homogenizing portion 10 is mounted in the accommodating chamber 513 of the housing 51 from the lower end 512 of the housing 51, and the incident surface 13 of the light homogenizing portion 10 is exposed to the outside of the housing 51.

In addition, the step (b) further comprises the steps of:

(b.1) attaching a controller 70 to the circuit board 60 such that the sensing chip 30 is controllably connected to the controller 70, wherein the controller 70 has a plurality of preset control bits; and

(b.2) after mounting the circuit board 60 in the accommodating chamber 513 of the housing 51, allowing a control bit selector 71 of the controller 70 to be exposed from the accommodating chamber 513 of the housing 51 to the outside of the housing 51 through a mounting groove 515 of the housing 51, thereby allowing the preset control bit of the controller 70 to be selected outside the housing 51 through the control bit selector 71.

It will be appreciated by persons skilled in the art that the above embodiments are only examples, wherein features of different embodiments may be combined with each other to obtain embodiments which are easily imaginable in accordance with the disclosure of the invention, but which are not explicitly indicated in the drawings.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. An ambient light intensity detector, comprising:

2. The ambient light intensity detector according to claim 1, wherein the light homogenizing unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light converging unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light homogenizing unit is held in the light converging optical path in such a manner that the exit surface of the light homogenizing unit faces the incident surface of the light converging unit, wherein the sensing surface of the sensing chip faces the exit surface of the light converging unit.

3. The ambient light intensity detector according to claim 1, wherein the light homogenizing unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light converging unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light homogenizing unit is held in the light converging optical path in such a manner that the exit surface of the light homogenizing unit faces the incident surface of the light converging unit, wherein the ambient light intensity detector further comprises a light diverting unit, and the exit surface of the light converging unit and the sensing surface of the sensing chip respectively face the light diverting unit, and the light diverting unit is configured to enable the light to be detected converged by the light converging unit to be received by the sensing surface of the sensing chip after being diverted.

4. The ambient light intensity detector according to claim 1, wherein the light uniformizing portion has an incident surface and an exit surface corresponding to the incident surface, wherein the light uniformizing portion has a concave light converging surface, wherein the light uniformizing portion is held in the light converging optical path in such a manner that the exit surface of the light uniformizing portion faces the light converging surface of the light converging portion, wherein the sensing chip is held between the light uniformizing portion and the light converging portion, and the sensing surface of the sensing chip faces the light converging surface of the light converging portion.

5. The ambient light intensity detector according to claim 2, wherein a spacing between the sensing surface of the sensing chip and the light exit surface of the light collection portion is adjustable.

6. The ambient light intensity detector according to claim 3, wherein the light turning part has a reflecting surface, and the light emitting surface of the light converging part and the sensing surface of the sensing chip face the reflecting surface of the light turning part, respectively.

7. The ambient light intensity detector according to claim 3, wherein the light turning part is provided as one or a combination of a prism and a planar mirror.

8. The ambient light intensity detector according to claim 1 or 4, wherein the light converging portion has a central axis, wherein a cross-sectional pattern of the light converging portion at any position in a thickness direction is a central symmetrical pattern, and a center of symmetry is the central axis of the light converging portion.

9. The ambient light intensity detector according to claim 2, 3, 5, 6 or 7, wherein the light converging portion has a central axis, wherein a cross-sectional view of the light converging portion at any position in a thickness direction is a central symmetrical view, and a center of symmetry is the central axis of the light converging portion.

10. The ambient light intensity detector according to claim 8, wherein an interface pattern of the uniform light portion at any position in a thickness direction is a center symmetrical pattern, a center of symmetry being the central axis of the light converging portion.

11. The ambient light intensity detector according to claim 9, wherein an interface pattern of the uniform light portion at any position in a thickness direction is a center symmetrical pattern, a center of symmetry being the central axis of the light converging portion.

12. The ambient light intensity detector according to claim 2, 3, 5, 6, or 7, wherein the ambient light intensity detector has a gap formed between the exit surface of the light uniformizing portion and the entrance surface of the light converging portion.

13. The ambient light intensity detector according to claim 11, wherein the ambient light intensity detector has a gap formed between the exit surface of the homogenizing portion and the entrance surface of the light converging portion.

14. The ambient light intensity detector according to claim 2, 3, 5, 6, or 7, wherein the exit surface of the uniformizing section and the entrance surface of the converging section are bonded to each other.

15. The ambient light intensity detector according to any one of claims 1 to 7, wherein the light converging portion is a Fresnel lens.

16. The ambient light intensity detector according to claim 13, wherein the light converging portion is a fresnel lens.

17. The ambient light intensity detector according to any one of claims 1 to 7, wherein the light converging portion is a condenser lens or a condenser lens group.

18. The ambient light intensity detector according to any one of claims 1 to 7, further comprising a controller, wherein the controller has a plurality of preset control bits, wherein the sensing chip is controllably connected to the controller, and wherein each of the preset control bits of the controller and each of the sensed values of the sensing chip have a one-to-one correspondence.

19. The ambient light intensity detector according to claim 18, wherein the controller is configured to steplessly adjust the number of the preset control bits such that the preset control bits are not limited and correspond to the corresponding sensing values in a one-to-one manner.

20. The ambient light intensity detector according to claim 13, further comprising a controller, wherein the controller has a plurality of preset control bits, wherein the sensing chip is controllably connected to the controller, and wherein each of the preset control bits of the controller corresponds to each of the sensing values of the sensing chip.

21. The ambient light intensity detector according to claim 20, wherein the controller is configured to steplessly adjust the number of the preset control bits such that the preset control bits are not limited and correspond to the corresponding sensing values in a one-to-one manner.

22. The ambient light intensity detector according to claim 16, further comprising a controller, wherein the controller has a plurality of preset control bits, wherein the sensing chip is controllably connected to the controller, and wherein each of the preset control bits of the controller and each of the sensing values of the sensing chip have a one-to-one correspondence.

23. The ambient light intensity detector according to claim 22, wherein the controller is configured to steplessly adjust the number of the preset control bits such that the preset control bits are not limited and correspond to the corresponding sensing values in a one-to-one manner.

24. The ambient light intensity detector according to any one of claims 1 to 7, further comprising a housing, wherein the housing comprises a casing having a lower end, a higher end corresponding to the lower end, and an accommodating cavity extending from the lower end to the higher end, so as to define a detection environment by the casing, wherein the light homogenizing part, the light converging part, and the sensing chip are respectively mounted in the accommodating cavity of the casing, so as to allow the sensing surface of the sensing chip to receive the light to be detected converged by the light converging part to the light converging light path in the detection environment.

25. The ambient light intensity detector according to claim 20, further comprising a housing, wherein the housing includes a casing having a lower end, a higher end corresponding to the lower end, and a receiving cavity extending from the lower end to the higher end, so as to define a detection environment by the casing, wherein the light homogenizing portion, the light converging portion, and the sensing chip are respectively mounted in the receiving cavity of the casing, so as to allow the sensing surface of the sensing chip to receive the light to be detected converged by the light converging portion to the light converging optical path in the detection environment.

26. The ambient light intensity detector according to claim 22, further comprising a housing, wherein the housing includes a casing having a lower end, a higher end corresponding to the lower end, and a receiving cavity extending from the lower end to the higher end, so as to define a detection environment by the casing, wherein the light homogenizing portion, the light converging portion, and the sensing chip are respectively mounted in the receiving cavity of the casing, so as to allow the sensing surface of the sensing chip to receive the light to be detected converged by the light converging portion to the light converging optical path in the detection environment.

27. A constant light system, comprising:

a control system;

a sensing chip, wherein the sensing chip has a sensing surface, the sensing surface of the sensing chip is held in the light converging light path to allow the light to be detected converged to the light converging light path to be received by the sensing surface of the sensing chip, and the sensing chip is connected to the control system.

28. The constant light system of claim 27, wherein said ambient light intensity detector further comprises a controller, wherein said controller has a plurality of preset control bits, wherein said sensing chip is controllably connected to said controller, and wherein each of said preset control bits of said controller and each of said sensed values of said sensing chip have a one-to-one correspondence.

29. The system according to claim 27 or 28, wherein the light homogenizing unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light homogenizing unit is maintained in the light converging optical path in a manner that the exit surface of the light homogenizing unit faces the incident surface of the light converging unit, and wherein the sensing surface of the sensing chip faces the exit surface of the light converging unit.

30. The system according to claim 27 or 28, wherein the light homogenizing unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light converging unit has an incident surface and an exit surface corresponding to the incident surface, wherein the light homogenizing unit is held in the light converging optical path with the exit surface of the light homogenizing unit facing the incident surface of the light converging unit, wherein the ambient light intensity detector further comprises a light turning unit, the exit surface of the light converging unit and the sensing surface of the sensing chip respectively facing the light turning unit, and the light turning unit is configured to enable the light to be detected converged by the light converging unit to be received by the sensing surface of the sensing chip after being turned.

31. The system according to claim 27 or 28, wherein said light homogenizing portion has an incident surface and an exit surface corresponding to said incident surface, wherein said light converging portion has a concave light converging surface, wherein said light homogenizing portion is held in said light converging optical path with said exit surface of said light homogenizing portion facing said light converging surface of said light converging portion, wherein said sensing chip is held between said light homogenizing portion and said light converging portion, and said sensing surface of said sensing chip faces said light converging surface of said light converging portion.

32. The constant optical system according to claim 29, wherein a distance between said sensing surface of said sensing chip and said light exit surface of said light converging portion is adjustable.

33. The constant optical system according to claim 29, wherein said light converging portion has a central axis, wherein a cross-sectional view of said light converging portion at any position in a thickness direction is a central symmetrical view, and a center of symmetry is said central axis of said light converging portion.

34. The constant light system according to claim 33, wherein an interface pattern of said even light portion at any position in a thickness direction is a center symmetrical pattern, a center of symmetry being said central axis of said light converging portion.

35. The constant optical system according to claim 34, wherein said ambient light intensity detector has a gap formed between said exit surface of said homogenizing section and said entrance surface of said light converging section.

36. The constant light system according to claim 35, wherein said light converging portion is a fresnel lens.

37. The system according to claim 29, wherein the ambient light intensity detector further comprises a housing, wherein the housing comprises a housing having a lower end, a higher end corresponding to the lower end, and a receiving cavity extending from the lower end to the higher end to define a detection environment by the housing, wherein the light homogenizing part, the light converging part, and the sensing chip are respectively mounted in the receiving cavity of the housing to allow the sensing surface of the sensing chip to receive the light to be detected converged by the light converging part to the light converging light path in the detection environment.

38. The system according to claim 35, wherein the ambient light intensity detector further comprises a housing, wherein the housing comprises a housing having a lower end, a higher end corresponding to the lower end, and a receiving cavity extending from the lower end to the higher end to define a detection environment by the housing, wherein the light homogenizing part, the light converging part, and the sensing chip are respectively mounted in the receiving cavity of the housing to allow the sensing surface of the sensing chip to receive the light to be detected converged by the light converging part to the light converging light path in the detection environment.

39. The system according to claim 36, wherein the ambient light intensity detector further comprises a housing, wherein the housing comprises a housing having a lower end, a higher end corresponding to the lower end, and a receiving cavity extending from the lower end to the higher end to define a detection environment by the housing, wherein the light homogenizing part, the light converging part, and the sensing chip are respectively mounted in the receiving cavity of the housing to allow the sensing surface of the sensing chip to receive the light to be detected converged by the light converging part to the light converging light path in the detection environment.