AU2021282402B2

AU2021282402B2 - Optical module, optical assembly, and optical control assembly

Info

Publication number: AU2021282402B2
Application number: AU2021282402A
Authority: AU
Inventors: Hongju LIU; Hanxin Rao
Original assignee: Shenzhen Eastfield Lighting Co Ltd
Current assignee: Shenzhen Eastfield Lighting Co Ltd
Priority date: 2021-03-29
Filing date: 2021-12-07
Publication date: 2023-06-29
Anticipated expiration: 2041-12-07
Also published as: AU2021282402A1; CN112902040A; NZ783149A

Abstract

The present disclosure provides an optical module, an optical assembly, and an optical control assembly. The optical module includes an LED lamp assembly, the LED lamp assembly including a plurality of LED lamps; a reflector, the LED lamp assembly being arranged at a bottom of the reflector, the reflector including a top plate and side plates, an inner wall of the top plate having a plurality of reflective surfaces, the top plate being bent from the bottom of the reflector towards an opening of the reflector, and the side plates being arranged on two sides of the top plate; and a light reflective plate connected to the side plates, the light reflective plate, the side plates, and the top plate forming a light reflective cavity. The optical assembly provided by the present disclosure is provided with at least two types of light-emitting units arranged thereon. Each type of light-emitting unit includes a plurality of optical modules arranged in an array. The optical modules in different light-emitting units have different light reflective cavities, so that a variety types of optical modules can be integrated on the optical assembly, and a variety types of light through the optical modules can be formed, so as to meet different application scenarios and further improve the market competitiveness of products. The optical assembly can cooperate with different switches to improve the interaction effect of the light of the lamps. 14 1/4 rsH CI b'ce Li

Description

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TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of light-emitting diode (LED) lamps, and more particularly, to an optical module, an optical assembly, and an optical control assembly.

BACKGROUND

[0002] In recent years, due to the continuous development of semiconductor technology, the market of LED indoor lighting has gradually developed from replaceable bulb lamps towards professional and high value-added lamps. For the field of outdoor lighting, it has also gradually developed from road lighting towards application scenarios of high-power, low glare, large range, and high uniformity, such as sports field lighting and the like. Therefore, the lighting requirements for different sports fields, such as track and-field ground lighting, stadium lighting, and arena lighting, need to be matched with different light distribution designs to obtain the optimal lighting configurations.

[0003] At present, most stadium lighting lamps in the market are only adjusted in their magnitudes of the beam angles, however, their light shapes mostly have a characteristic of axisymmetric light distribution. This type of lighting lamps, when used in the stadiums, are prone to glare, which can easily cause athletes and referees to be unable to see the situation in the fields clearly. On the other hand, although some high-power lamps have enough light output lumens, their illuminance or brightness of the illuminated range are still insufficient, which are due to the poor design of the light shape of the light distribution, and also cause unnecessary light pollution accordingly. Therefore, a proper light distribution should not only meet the basic lighting, but also take into account the energy saving goal of the effective use of the light source and the safety requirement of low glare. In addition, from the perspective of the current market products, one type of the LED lamp generally has only one type of light shape, which can only meet the lighting requirements of one scene. For different scenes, different light shapes are needed to be developed to meet different requirements, leading to an increase in the development cost of the lamps. Therefore, the development of lamps with adjustable light shape has become an urgent demand of the market.

SUMMARY

[0004] Accordingly, it is necessary to provide an optical module, an optical assembly, and an optical control assembly to solve the problems that the current LED lighting lamps have a single light shape, are prone to glare, and cannot meet different application scenarios.

[0005] In accordance with one aspect of the present invention, there is provided an optical module, comprising: a light-emitting diode (LED) lamp assembly, comprising a plurality of LED lamps; a reflector, the LED lamp assembly being arranged at a bottom of the reflector, the reflector comprising a top plate and side plates that are connected to the bottom and extend from the bottom, an inner wall of the top plate having a plurality of reflective surfaces adjacent to one another, the top plate being bent from the bottom of the reflector towards an opening of the reflector, and the side plates being arranged on two sides of the top plate; and a light reflective plate, the light reflective plate being connected to the side plates, the light reflective plate, the side plates, and the top plate forming a light reflective cavity; wherein the plurality of reflective surfaces have different inclination angles along a direction of a light-emitting axis of the LED lamp, and the plurality of reflective surfaces being arranged in parallel.

[0006] Further, the side plates are provided with light condensing surfaces, and the light condensing surfaces arranged opposite to each other are arranged gradually closer to each other from the opening to the bottom of the reflector.

[0007] Further, the plurality of reflective surfaces have different inclination angles along a direction of a light-emitting axis of the LED lamp.

[0008] Further, the plurality of reflective surfaces are arranged in parallel.

[0009] Further, the plurality of LED lamps are arranged in an array, and both ends of each of the reflective surfaces are connected to the side plates, respectively.

[0010] Further, the light condensing surfaces and the reflective surfaces are provided with reflective films made of same materials or different materials.

[0011] Further, a high-strength reflective film is provided on the light reflective plate.

[0012] Further, an optical assembly is provided, which includes the above-described optical modules. The optical assembly includes at least two types of light-emitting units.

Each type of light-emitting unit comprises a plurality of the optical modules arranged in an array, and the optical modules in different light-emitting units have different reflectors.

[0013] Further, the optical assembly further includes a bottom plate, and the light emitting units are disposed on the bottom plate.

[0014] Further, an optical control assembly is provided, which is configured for controlling the above-described optical assembly. The optical control assembly includes a switch, and the switch controls different optical modules respectively.

[0015] The optical module provided by the present disclosure includes the LED lamp assembly, the reflector, and the light reflective plate. The reflector includes a top plate and side plates. The top plate, the side plates, and the light reflective plate form the light reflective cavity of the LED lamp. The top plate of the reflector is provided with the plurality of reflective surfaces on the inner wall thereof, the top plate is bent from the bottom of the reflector towards the opening of the reflector. The assembly including the LED lamps is arranged at the bottom of the reflector. The light rays emitted by the LED lamp are reflected for multiple times through the inner walls of the reflector and the light reflective plate, and finally form an asymmetrical triangle-like light shape. Such asymmetrical triangular light shape can provide customized optical structure design according to the requirements of different lighting scenes to achieve the optical design goal of high uniformity of illuminance of facade. The optical design of the asymmetrical triangular light shape is suitable for museums, commerce, outdoor lighting and many other occasions that require high uniformity of illuminance of facade, which can reduce glare value and light pollution, and achieve better uniformity of illuminance.

[0016] The optical assembly provided by the present disclosure is provided with at least two types of light-emitting units arranged thereon. Each type of light-emitting unit includes a plurality of optical modules arranged in an array. The optical modules in different light-emitting units have different light reflective cavities, so that a variety types of optical modules can be integrated on the optical assembly, and a variety types of light can be formed through the optical modules, so as to meet different application scenarios and further improve the market competitiveness of products. The optical assembly provided by the present disclosure can cooperate with different switches to achieve different lighting effects of the optical modules according to different application scenarios and improve the interaction effect of the light of the lamps.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a schematic diagram of an optical module according to an embodiment of the present disclosure.

[0018] FIG. 2 is a perspective view of an optical module according to an embodiment of the present disclosure.

[0019] FIG. 3 is a perspective view of an optical assembly according to an embodiment of the present disclosure.

[0020] FIG. 4 is a side view of an optical assembly according to an embodiment of the present disclosure.

[0021] Where: 10, optical module; 11, LED lamp assembly; 12, reflector; 121, top plate; 122, side plate; 123, reflective surface; 124, light condensing surface; 13, light reflective plate; 14, light reflective cavity; 15, opening; 20, optical assembly; 21 (21'), light-emitting unit; 211, first optical module; 212, second optical module; 22, bottom plate.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The above objects, features, and advantages of the present disclosure will become more apparent by describing in detail embodiments thereof with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and such modifications may be made by those skilled in the art without departing from the scope of the disclosure, which is therefore not to be limited to the specific embodiments disclosed below.

[0023] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", upper" "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate that the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only to facilitate the description of the present disclosure and simplify the description, rather than indicating or implying the device or elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limitation of the present disclosure.

[0024] In addition, the terms "first" and "second" are used for purposes of description only, and cannot be understood to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Therefore, the features defined by "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the term "plurality" means at least two, such as two, three, etc., unless specifically defined otherwise.

[0025] In the present disclosure, unless otherwise clearly specified and limited, the term such as "mounted", "interconnected", "connected", "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or integrated; may be a mechanical connection or an electrical connection; may be a direct connection, or may be an indirect connection through an intermediate, may be a communication between two components or an interaction between two components, unless otherwise specified. Those ordinary skilled in the art can understand the specific meanings of the above terms in the present disclosure according to specific situations.

[0026] In the present disclosure, unless otherwise clearly specified and defined, a first feature is "on" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are indirectly contact through an intermediate. The first feature is "at the top of', "above", and "over" the second feature may indicate that the first feature is directly or obliquely above the second feature, or only indicate that a level height of the first feature is higher than that of the second feature. The expression that a first feature is "beneath", "below", and "under" the second feature may indicate that the first feature is directly or obliquely below the second feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0027] It will be understood that a component, when being referred to as being "fixed", or "disposed" on another component, it may be directly on another component, or there may be an intermediate component between them. When a component is considered to be "connected" to another component, it may be directly connected to another component or there may be an intermediate component between them at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and should not be construed as the only implementation.

[0028] In recent years, due to the continuous development of semiconductor technology, the market of LED indoor lighting has gradually developed from replaceable bulb lamps towards professional and high value-added lamps. For the field of outdoor lighting, it has also gradually developed from road lighting towards application scenarios of high-power, low glare, large range, and high uniformity, such as sports field lighting and the like. Therefore, the lighting requirements for different sports fields, such as track and-field ground lighting, stadium lighting, and arena lighting, need to be matched with different light distribution designs to obtain the optimal lighting configurations.

[0029] At present, most stadium lighting lamps in the market are only adjusted in their magnitude of the beam angle, however, their light shapes mostly have a characteristic of axisymmetric light distribution. This type of lighting lamps, when used in the stadiums, are prone to glare, which can easily cause athletes and referees to be unable to see the situation in the fields clearly. On the other hand, although some high-power lamps have enough light output lumens, their illuminance or brightness of the illuminated range are still insufficient, which is caused by the poor design of the light shape of the light distribution, and which will also cause unnecessary light pollution. Therefore, a proper light distribution should not only meet the basic lighting, but also take into account the energy-saving goal of the effective use of the light source and the safety requirement of low glare. In addition, from the perspective of the current market products, one type of the LED lamp generally has only one type of light shape, which can only meet the lighting requirements of one scene. For different scenes, different light shapes are needed to be developed to meet different requirements, which leads to an increase of the development cost of the lamps. Therefore, the development of lamps with adjustable light shape has become an urgent demand of the market.

[0030] FIG. 1 shows a schematic diagram of an optical module according to an embodiment of the present disclosure, in which FIG. 1A is a schematic diagram of light reflection in a main viewing angle direction, and FIG. 1B is a schematic diagram of light reflection in a side viewing angle direction. With combined reference to FIGS. 1A and IB, the principle of the optical module provided by the present disclosure is that, light emitted by an LED lamp assembly 11 enters a light reflective cavity 14 and then is reflected for multiple times through different reflective surfaces 123 on the light reflective cavity 14, and finally, light beams can be blended and superimposed and then emitted, so as to obtain more uniform light rays. The inner walls of the light reflective cavity 14 are composed of a variety of structures, on which reflective films are provided. The inner walls of the light reflective cavity 14 have different sizes and structures, and the reflective films thereon are also made of different materials, which causes different reflections to the light, forms emitted light with different effects, and finally achieves the function of light dimming, thereby meeting the different application requirements of users.

[0031] By adopting this structure, a plurality of optical modules can be integrated on one bottom plate, and the plurality of optical modules have reflective surfaces different from one optical module to another, so as to obtain different types of light sources, so that one integrated plate has a variety of adjustable light sources thereon, thereby further expanding the application range of the optical modules, and improving the user experience.

[0032] FIG. 2 shows a perspective view of an optical module according to an embodiment of the present disclosure. The optical module 10 includes an LED lamp assembly 11, a reflector 12, and a light reflective plate 13. The reflector 12 in the present application may be a reflective cover or the like. The LED lamp assembly 11 includes a plurality of LED lamps, and the LED lamp assembly 11 is disposed at a bottom of the reflector 12. The reflector 12 includes a top plate 121 and side plates 122. An inner wall of the top plate 121 has a plurality of reflective surfaces 123. The top plate 121 is bent from the bottom of the reflector 12 towards an opening 15 of the reflector 12, and the side plates 122 are disposed on two sides of the top plate 121. The light reflective plate 13 is connected to the side plates 122. The light reflective plate 13, the side plates 122, and the top plate 121 form a light reflective cavity 14. Light rays emitted by the LED lamp assembly 11 located at the bottom of the reflector 12, are reflected by the surfaces of the light reflective cavity 14 after passing through the light reflective cavity 14, and finally emitted through the opening 15. In the light reflective cavity 14, the light rays emitted by the LED lamp assembly 11 are fully reflected, converged and superimposed, etc., forming more uniform emitted light. By configuring the reflectors 12 and the light reflective plates 13 to have different specifications, materials, and structures, the light reflective cavities 14 formed by them are also different, so that different light uniform effects can be finally obtained.

[0033] Further, a light condensing surface 124 is provided on the side plate 122, and the light condensing surface 124 is a surface facing the light reflective cavity 14. Optionally, the light condensing surface 124 has a structure of curved surface or inclined surface, and the inclined manner thereof is that, it is narrower at a location closer to the bottom of the reflector 12, and is wider at a location closer to the opening 15. That is, the light condensing surfaces 124 arranged opposite to each other are arranged gradually closer to each other from the opening 15 to the bottom of the reflector 12, so that the light reflective cavity 14 is formed as a bell mouth shape, which is convenient for the light rays emitted from the LED lamp assembly 11 entering the light reflective cavity 14 to be reflected, and finally being emitted through the opening 15.

[0034] Further, continuing to refer to FIG. 1, the plurality of reflective surfaces 123 have different inclination angles along a direction of the light-emitting axis a-a of the LED lamp. That is, there are different included angles between the different reflective surfaces 123 and the light-emitting axis a-a of the LED lamp, so that light rays can be reflected in different directions, thereby achieving the light uniform effect. Optionally, FIG. 1 merely illustrates an embodiment of the reflector provided by the present disclosure, and is not meant to be only limited to the above structures of the reflective surfaces. Other types of structures, such as that the reflective surfaces are distributed in an irregular state on the top plate, are also allowed for the present disclosure.

[0035] Referring to FIG. 2, optionally, the plurality of reflective surfaces 123 are arranged in parallel. Specifically, the plurality of reflective surfaces 123 may be arranged in parallel along a longitudinal direction of the top plate 121, or may be arranged in parallel along a transverse direction of the top plate 121, or arranged in parallel along any direction of a plane where the top plate 121 is located. In this way, relatively regular reflection paths can be obtained for the light after being emitted, thereby forming relatively uniform light uniform effects.

[0036] Optionally, the plurality of LED lamps are arranged in an array to form the LED lamp assembly 11, the plurality of reflective surfaces 123 are arranged in parallel, and both ends of each of the reflective surfaces 123 are respectively connected to the side plate 122. That is, the reflective surfaces 123 are arranged along a transverse direction of the top plate 121.

[0037] It should be noted that the light reflective cavity 14 mainly achieves the reflection to the light relying on a combined action of the reflective surfaces 123 on the top plate 121, the light condensing surface 124 on the side plate 122, and the light reflective plate 13. Optionally, reflective films made of the same material or different materials are provided on the reflective surfaces 123 and the light condensing surface 124.

[0038] Further, a high-strength reflective film, such as a glass bead reflective film, is provided on the light reflective plate 13.

[0039] The optical module provided by the present disclosure includes the LED lamp assembly, the reflector, and the light reflective plate. The reflector includes a top plate and side plates. The top plate, the side plates, and the light reflective plate form the light reflective cavity of the LED lamp. The top plate of the reflector is provided with the plurality of reflective surfaces on the inner wall thereof. The top plate is bent from the bottom of the reflector towards the opening of the reflector. The assembly including the LED lamps is arranged at the bottom of the reflector. The light rays emitted by the LED lamp are reflected for multiple times through the inner walls of the reflector and the light reflective plate, and finally form an asymmetrical triangle-like light shape. Such asymmetrical triangular light shape can provide customized optical structure design according to the requirements of different illuminating scenes to achieve the optical design goal of high uniformity of illuminance of facade. The optical design of the asymmetrical triangular light shape is suitable for museums, commerce, outdoor lighting and many other occasions that require high uniformity of illuminance of facade, which can reduce glare value and light pollution, and achieve better uniformity of illuminance.

[0040] FIG. 3 shows a perspective view of an optical assembly according to an embodiment of the present disclosure, FIG. 4 shows a side view of an optical assembly according to an embodiment of the present disclosure. With combined reference to FIGS. 2 to 4, the optical assembly provided by the present disclosure includes at least two types of light-emitting units 21 (21'), each type of light-emitting unit 21 (21') includes a plurality of optical modules 10 arranged in an array, and the optical modules 10 in different light emitting units 21 (21') have different reflectors 12. Specifically, the first optical modules 211 are arranged in a group of four to form one light-emitting unit 21, and the second optical modules 212 are arranged in a group of four to form one light-emitting unit 21', a plurality of light-emitting units 21 and a plurality of light-emitting units 21' are integrated on a bottom plate 22 to form an optical assembly.

[0041] Further, an optical control assembly is further included, which is configured for controlling the above-described optical assembly, and which includes a switch(switches), and the switch(es) respectively controls different optical modules. Referring to FIG. 4 specifically, the optical modules are integrated in the light-emitting unit, and different optical modules are controlled to be turned on and off through the switch(es) to realize the lightening and extinguishing of different optical modules, thereby achieving different light-emitting effects. Designers can set different lightening programs and paths according to actual needs, so as to meet the needs of various interactive scenarios and provide users with a sense of experience.

[0042] The optical assembly provided by the present disclosure is provided with at least two types of light-emitting units arranged thereon. Each type of light-emitting unit includes a plurality of optical modules arranged in an array. The optical modules in different light-emitting units have different light reflective cavities, so that a variety types of optical modules can be integrated on the optical assembly, and a variety types of light can be formed through the optical modules, so as to meet different application scenarios and further improve the market competitiveness of products. The optical assembly provided by the present disclosure can cooperate with different switches to achieve different lighting effects of the optical modules according to different application scenarios and improve the interaction effect of the light of the lamps.

[0043] The technical features of the above embodiments can be combined arbitrarily. For concise description, not all possible combinations of the technical features in the above embodiments are described, but all of which should be considered to be within the scope described in this specification, as long as there is no contradiction between them. The above described embodiments are merely illustrate several embodiments of the present disclosure, which are described more specifically and in detail, but they cannot be understood as limiting the scope of the present disclosure. It should be noted that, for those ordinary skilled in the art, several variations and improvements may be made without departing from the concept of the present disclosure, and all of which are within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be defined by the appended claims.

[0044] Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

[0045] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavor to which this specification relates.

Claims

THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS:

1. An optical module, comprising: a light-emitting diode (LED) lamp assembly, comprising a plurality of LED lamps;

a reflector, the LED lamp assembly being arranged at a bottom of the reflector, the

reflector comprising a top plate and side plates that are connected to the bottom and extend

from the bottom, an inner wall of the top plate having a plurality of reflective surfaces

adjacent to one another, the top plate being bent from the bottom of the reflector towards

an opening of the reflector, and the side plates being arranged on two sides of the top plate;

and

a light reflective plate, the light reflective plate being connected to the side plates, the

light reflective plate, the side plates, and the top plate forming a light reflective cavity;

wherein the plurality of reflective surfaces have different inclination angles along a

direction of a light-emitting axis of the LED lamp, and the plurality of reflective surfaces

being arranged in parallel.

2. The optical module according to claim 1, wherein the side plates are provided with light condensing surfaces thereon, and the light condensing surfaces arranged opposite to each other are arranged gradually closer to each other from the opening to the bottom of the reflector.

3. The optical module according to claim 1, wherein the plurality of LED lamps are arranged in an array, and both ends of each of the reflective surfaces are connected to the side plates, respectively.

4. The optical module according to claim 2, wherein the light condensing surfaces and the reflective surfaces are provided with reflective films made of a same material or different materials.

5. The optical module according to any one of claims 1-4, wherein a high-strength reflective film is provided on the light reflective plate.

6. An optical assembly, comprising the optical modules according to any one of claims 1 5, comprising at least two types of light-emitting units, wherein each type of light-emitting unit comprises a plurality of the optical modules arranged in an array, and the optical modules in different light-emitting units have different reflectors.

7. The optical assembly according to claim 6, further comprising a bottom plate, and the light-emitting units being disposed on the bottom plate.

8. An optical control assembly configured for controlling the optical assembly according to claim 6 or 7, comprising a switch, wherein the switch controls different optical modules respectively.