WO2020057515A1 - 配光元件、光源模组、光源组件及照明灯具 - Google Patents

配光元件、光源模组、光源组件及照明灯具 Download PDF

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Publication number
WO2020057515A1
WO2020057515A1 PCT/CN2019/106269 CN2019106269W WO2020057515A1 WO 2020057515 A1 WO2020057515 A1 WO 2020057515A1 CN 2019106269 W CN2019106269 W CN 2019106269W WO 2020057515 A1 WO2020057515 A1 WO 2020057515A1
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Prior art keywords
light
light source
distribution element
light distribution
source module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/CN2019/106269
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English (en)
French (fr)
Inventor
李扬
谢建民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Original Assignee
Opple Lighting Co Ltd
Suzhou Op Lighting Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201821514796.2U external-priority patent/CN208794110U/zh
Priority claimed from CN201811080118.4A external-priority patent/CN109185736B/zh
Application filed by Opple Lighting Co Ltd, Suzhou Op Lighting Co Ltd filed Critical Opple Lighting Co Ltd
Publication of WO2020057515A1 publication Critical patent/WO2020057515A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape

Definitions

  • the present invention relates to the technical field of lighting devices, and in particular, to a light distribution element, a light source module, a light source component, and a lighting fixture.
  • lighting fixtures are provided with a light-emitting unit (such as an LED light-emitting unit), and a light distribution element is arranged on the upper cover of the light-emitting unit to realize light emission and scattering.
  • a light-emitting unit such as an LED light-emitting unit
  • a light distribution element is arranged on the upper cover of the light-emitting unit to realize light emission and scattering.
  • the traditional linear lamp generally has a long structure.
  • the following two schemes can usually be adopted:
  • the cost of such a linear lamp is high because the number of light-emitting units is large and the width of the circuit board is large.
  • a stretching lens is used to expand the irradiation range of the light-emitting unit.
  • the weight of the stretched lens is still heavy, which will adversely affect the assembly and maintenance of the linear lamp, resulting in the cost of the linear lamp. Still high.
  • the invention discloses a light distribution element, a light source module, a light source component and a lighting fixture, so as to reduce the cost of the lighting fixture.
  • the present invention adopts the following technical solutions:
  • a light distribution element having a light-emitting unit accommodating space and a light incident surface and a light exit surface respectively located on two sides of the light distribution element, and an inner wall of the light emitting unit accommodating space is the light incident surface;
  • the light exiting surface is a turning surface, the turning direction of the light exiting surface is a direction surrounding the light entering surface, and the light entering surface is a non-turning surface in the turning direction.
  • a light source module includes a circuit board, a light distribution element, and a light-emitting unit.
  • the light distribution element is the light distribution element described above.
  • the light-emitting unit is disposed on the circuit board and is located in the light-emitting unit accommodation space.
  • the circuit board is fixed to the light distribution element.
  • a light source assembly includes a base and a light source module mounted on the base.
  • the light source module is the light source module described above.
  • An illumination lamp includes an optical mask, a driver, and the light source component.
  • the driver and the light source component are both disposed below the optical mask.
  • the driver is electrically connected to the circuit board.
  • the light emitting surface of the light distribution element disclosed by the present invention is a revolving surface, and its light incident surface is a non-revolving surface. Therefore, the light passing through the light distribution element will show directionality.
  • the installation state of the light distribution element changes, The lighting effect will also change. Therefore, when designing a lighting fixture, the installation state of the light distribution element can be flexibly adjusted according to the width of the light fixture, so that the lighting effect produced by the light distribution element better matches the width of the light fixture, and finally achieves the purpose of uniform light output from the lighting fixture.
  • the uniform light output of the lighting fixture can be achieved without increasing the number of the light distribution elements, and the weight of the light distribution element is relatively small. Therefore, the lighting fixture using the light distribution element has the characteristics of lower cost.
  • FIG. 1 is an exploded view of a lighting fixture disclosed in an embodiment of the present invention
  • FIG. 2 is a side view of a partial structure of a lighting lamp disclosed in an embodiment of the present invention.
  • FIG. 3 is a top view of the structure shown in FIG. 2;
  • FIG. 4 is a partially enlarged structure diagram of FIG. 3; FIG.
  • FIG. 5 is a cross-sectional view of the structure shown in FIG. 4 along a first surface (ie, A-A direction);
  • FIG. 6 is a cross-sectional view of the structure shown in FIG. 4 along the second surface (ie, B-B direction);
  • FIG. 7 is a side view of a partial structure of a lighting lamp disclosed by another embodiment of the present invention.
  • FIG. 8 is a top view of the structure shown in FIG. 7;
  • FIG. 9 is a partially enlarged structure diagram of FIG. 8; FIG.
  • FIG. 10 is a side view of a partial structure of a lighting lamp disclosed in still another embodiment of the present invention.
  • FIG. 10 is a plan view of the structure shown in FIG. 10;
  • FIG. 12 is a partially enlarged structure diagram of FIG. 11; FIG.
  • FIG. 13 is a side view of a partial structure of a lighting lamp disclosed by still another embodiment of the present invention.
  • FIG. 14 is a top view of the structure shown in FIG. 13;
  • FIG. 15 is a partially enlarged structure diagram of FIG. 14; FIG.
  • 16 is a side view of a partial structure of a lighting lamp disclosed by another embodiment of the present invention.
  • FIG. 17 is a top view of the structure shown in FIG. 16;
  • FIG. 18 is a partially enlarged structure diagram of FIG. 17.
  • 100-light source module 110-light source module, 111-light distribution element, 111a-light-emitting unit accommodation space, 111b-light entrance surface, 111c-light exit surface, 111ca-transverse extension surface, 111cb-transition connection surface, 111cc-longitudinal Extension surface, 111d-first surface, 111e-second surface, 112-circuit board, 113-light emitting unit, 120-base, 121-base, 122-reflection section, 122a-reflection surface, 200-diffusion mask, 300- First end cap, 400-second end cap.
  • an embodiment of the present invention discloses a lighting fixture.
  • the lighting fixture includes an optical mask, a driver (not shown), a light source assembly 100, a first end cover 300, and a second end cover 400.
  • Optical masks are used to protect other parts of the lighting fixture, while ensuring the aesthetics of the lighting fixture.
  • the driver is used to provide energy to the light source assembly 100 so that the light source assembly 100 can emit light. Both the driver and the light source assembly 100 are disposed below the optical mask, and light emitted by the light source assembly 100 can pass through the optical mask.
  • the first end cover 300 and the second end cover 400 may be respectively installed at two ends of the light source assembly 100 and the optical mask to form a closed space.
  • the lighting fixture disclosed in the embodiment of the present invention may specifically be a linear lamp, a pendant lamp, a ceiling lamp, or the like.
  • the light source module 100 includes a base 120 and a light source module 110 mounted on the base 120.
  • the base 120 serves as a base for installing the light source module 110, and the light source module 110 serves as a main part of the light source module 100 to emit light.
  • the light source module 110 may include a circuit board 112, a light distribution element 111, and a light emitting unit 113.
  • the circuit board 112 is electrically connected to the aforementioned driver, so that the driver can provide the circuit board 112 with power required for light emission.
  • the light emitting unit 113 is disposed on the circuit board 112, so the circuit board 112 can supply power to the light emitting unit so that the light emitting unit 113 emits light, and the light emitting unit 113 may be preferably an LED light emitting unit.
  • the light distribution element 111 can be fixed on the circuit board 112. It can use reflection, refraction and other forms to adjust the parameters such as the direction of the light emitted by the light emitting unit 113, so that the lighting effect of the entire lighting fixture can meet the needs.
  • a lens may be used as the light distribution element 111.
  • the light distribution element 111 has a light-emitting unit accommodating space 111a, and a light-incident surface 111b and a light-exit surface 111c respectively located on two sides thereof.
  • the light-emitting unit accommodating space 111a is used for accommodating the light-emitting unit 113, and its inner wall is a light-incident surface 111b. Therefore, the light emitted by the light-emitting unit 113 first reaches the light-incident surface 111b, and these light rays are reflected or refracted in the light distribution element 111 and then emitted by The surface 111c is ejected.
  • the light emitting surface 111c is a turning surface, and its turning direction is a direction surrounding the light incident surface 111b, and the light entering surface 111b is a non-turning surface in the turning direction. Therefore, the light passing through the light distribution element 111 will show directionality. When the installation state of the light distribution element 111 changes, the lighting effect brought by it will also change.
  • the installation state of the light distribution element 111 can be flexibly adjusted according to the width of the lighting fixture, so that the lighting effect produced by the light distribution element 111 better matches the width of the lighting fixture, and finally achieves the purpose of uniform light output from the lighting fixture.
  • the uniform light output of the lighting fixture can be achieved without increasing the number of the light distribution elements 111.
  • the weight of the light distribution element 111 is small, so the lighting fixture using the light distribution element 111 has a low cost. specialty.
  • the light emitted from the light emitting unit 113 will form a light spot after passing through the light distribution element 111, and the specific shape of the light spot may be circular, oval, triangular, rectangular, or the like.
  • the shape of the light spot can be designed according to the overall shape of the lighting fixture. For example, if the overall shape of the lighting fixture is circular, the shape of the light spot can be set to be circular to meet the requirement of uniform light output. For rectangular lighting fixtures, such as linear lamps, the light spot formed by the light source module 110 can be set as a rectangular light spot.
  • the structure of the light incident surface 111b can be further regularized.
  • the light incident surface 111 b has a symmetrical structure with respect to the first surface 111 d and the second surface 111 e that intersect perpendicularly.
  • the light incident surface 111 b after the light enters through the light-entering surface 111b and finally exits from the light-emitting surface 111c, it will exhibit a certain symmetry with respect to the first surface 111d and the second surface 111e, and then achieve the aforementioned effect.
  • intersection line of the first surface 111d and the second surface 111e may be collinear with the rotation axis of the light emitting surface 111c.
  • the geometric center line of the light incident surface 111b and the light emitting surface 111c is parallel to the light of the light emitting unit 113. Axis, so that after the light emitted from the light emitting unit 113 passes through the light distribution element 111, it exhibits more obvious regularity in the rotation direction of the light emitting surface 111c, so as to strengthen the aforementioned technical effect.
  • the cross section of the light entrance surface 111 b is an elliptical cross section.
  • the distribution law of the light after passing through the light distribution element 111 is basically consistent with the structural characteristics of the oval cross section. Specifically, it may be brighter in the short axis direction of the oval cross section and more in the long axis direction. dark.
  • the brightness change of the light also tends to be uniform, so that there is basically no large abrupt change in the light, and the uniformity of the illumination of the lighting fixture is further improved.
  • the section at the lower end opening of the light incident surface 111b is defined as the lower end section, the lower end section is perpendicular to the rotation axis of the light exit surface 111c, and the long axis dimension of the lower end section may be 11mm and the short axis dimension may be 4.6 mm, the maximum concave depth of the light incident surface 111b can be set to 3.4mm.
  • the maximum diameter of the light emitting surface 111c is 14 mm, and the maximum height (the height is the dimension in the direction of the rotation axis of the light emitting surface 111c) is 5.2 mm.
  • the long axis length and the short axis length of the elliptical section may be It does not change, and can be monotonically increased, but these two structures will cause a large sudden change in the direction of the light near the top of the light incident surface 111b after passing through the light distribution element 111, which is not conducive to ensuring the uniformity of the illumination of the lighting fixture. .
  • both the major axis length and the minor axis length of the elliptical cross section can be monotonically decreased in the aforementioned direction, and the light incident surface 11b at this time has a smoothly curved surface structure in a direction close to the top of the light incident surface 111b.
  • the curvature radius of the light emitting surface 111c may be gradually decreased from the center of the light emitting surface 111c to the edge thereof and then gradually increased.
  • the radius of curvature of the light-emitting surface 111c decreases, the deflection of the light will increase, so that the light is appropriately expanded to obtain a larger light output range.
  • the radius of curvature of the light-emitting surface 111c is increased, the deflection of the light will decrease. It is small so that the light converges properly and prevents the light from shining to the place where it is not needed. It can be seen that with this structure, the light emitted by the light emitting unit 113 can be better utilized, and at the same time, it is beneficial to improve the uniformity of the light.
  • the light emitting surface 111c may include a laterally extending surface 111ca, a transition connecting surface 111cb, and a longitudinally extending surface 111cc.
  • the laterally extending surface 111ca passes through the transitional connecting surface 111cb and the longitudinally extending surface 111cc. Shape transition connection.
  • the curvature change of the horizontally extending surface 111ca and the longitudinally extending surface 111cc is small, while the curvature of the transitional connection surface 111cb is relatively large, and the curvature radius of the entire light emitting surface 111c gradually decreases from the horizontally extending surface 111ca to the transitional connection surface 111cb
  • the trend from the transition connection surface 111cb to the longitudinally extending surface 111cc is generally gradually increasing. Such a change tendency makes the light output range and light uniformity of the light distribution element 111 ideal.
  • the light incident surface 111b can be set as a light surface, but considering that the light incident surface is relatively concentrated after being incident, it is likely to cause the problem of unevenness of the light after passing through the light distribution element 111. Therefore, the embodiment of the present invention A matte mixed pattern is provided on the surface 111b.
  • the matte mixed pattern can be formed by sandblasting and other processes, and has the characteristics of unevenness. Therefore, the light will be more dispersed after passing through the light incident surface 111b, thereby solving the aforementioned problem.
  • only one light emitting unit 113 may be provided in the light emitting unit accommodating space 111a, or at least two light emitting units 113 may be provided.
  • the light incident surface 111b of the light distribution element 111 is a non-rotating surface, the light transmitted through the light distribution element 111 is directional, so the size of the light incident surface 111b can be large.
  • At least two light emitting units 113 are arranged in the direction of the light source, so that the arrangement form of the light emitting units 113 is consistent with the structural characteristics of the light incident surface 111b, and the problem of insufficient brightness in the direction of the large size of the light incident surface 111b is prevented, thereby causing light emission. Higher uniformity.
  • a single light source module 110 may be provided with only one light distribution element 111 or multiple light distribution elements 111.
  • a plurality of light distribution elements 111 may be set, and each light distribution element 111 may be spaced apart. It is disposed on the circuit board 112.
  • Each light distribution element 111 may be covered on at least one light emitting unit 113, or may be covered on a plurality of light emitting units 113. At this time, the plurality of light emitting units 113 covered by the same light distribution element 111 form light emission.
  • the unit group, the plurality of light-emitting unit groups corresponding to the plurality of light distribution elements 111 are also disposed on the circuit board 112 at equal intervals. As the number of light-emitting unit groups continues to increase, the illumination range of the light source module increases.
  • a distance between adjacent light-emitting units 113 is a first distance, and between adjacent light-emitting unit groups
  • the interval is a second interval, and the first interval is smaller than the second interval. That is, the light emitting units 113 in the light emitting unit accommodating space 111a are relatively concentrated, so that the light emitted by a single light source module 110 is relatively bright; and each light emitting unit group is relatively dispersed, so that the entire lighting fixture is The light emitted is relatively soft and will not hurt the user's eyes.
  • the ratio between the second interval and the first interval may be set to 60 to 150, so as to make the lighting effect of the lighting fixture better.
  • the first distance may be a minimum distance between edges of adjacent light emitting units 113, which may be set to 0.5 to 1 mm
  • the second distance may be a minimum distance between edges of adjacent light distribution elements 111. It can be set to 62-66mm.
  • the circuit board 112 may be provided in a stripe structure to facilitate mounting of a plurality of light emitting units 113 and light distribution elements 111.
  • the lighting fixture using such a circuit board 112 may be a linear lamp.
  • the light passing through the light distribution element 111 will show a certain directionality, so the overall structure of the light distribution element 111 and the light emitting unit 113 on the circuit board 112 will directly affect the lighting fixture. Lighting effect. Specifically, when the space occupied by the light distribution element 111 and the light emitting unit 113 in the width direction of the lighting fixture changes, the lighting effect of the lighting fixture changes.
  • the included angle between the light distribution element 111 and the extending direction of the light emitting unit 113 and the circuit board 112 may be set correspondingly according to the width of the lamp, and the included angle may be defined as the included light distribution angle. That is, the light distribution angle is a preset angle related to the width of the lamp, which can be changed between 0 and 90 °.
  • the light distribution angle can be 0 °; when the lamp width is 120-150mm, the light distribution angle can be 5-10 °; when the lamp width is 90-120mm, the light distribution clip The angle can be 20-80 °; when the width of the lamp is 60-90mm, the light distribution angle can be 90 °.
  • the repeating end point value can be selected from the range of the value, and then the value of the light distribution angle is selected.
  • the width of the lighting fixture is 200mm, and the light distribution angle is 0 °.
  • the width of the lighting fixture is 150mm, and the light distribution angle is 0 °.
  • the width of the lighting fixture is 120mm, and the light distribution angle is 5 to 10 °.
  • the width of the lighting fixture is 90mm, and the light distribution angle is 90 °.
  • the width of the lighting fixture is 60 mm, and the light distribution angle is 90 °.
  • the base 120 may include a base portion 121 and a reflective portion 122 provided on the base portion 121.
  • the light source module 110 is mounted on the base portion 121.
  • the reflective portion 122 has a reflective surface 122 a facing the light source module 110.
  • Both the base portion 121 and the reflection portion 122 may adopt a plate-like structure.
  • One part of the light emitted by the light emitting unit 113 can be directly emitted, and the other part is irradiated on the reflection surface 122a of the reflection part 122, and the reflection surface 122a reflects this part of the light, and finally causes this part of the light to be emitted. It can be seen that when such a base 120 is used, due to the reflection effect of the reflecting portion 122, the light will change its direction again after being emitted from the light distribution element 111, thereby making the light emitted by the light source assembly 100 more uniform.
  • two reflection portions 122 may be provided, and the two reflection portions 122 are respectively located on opposite sides of the light source module 110.
  • the light emitting unit 113 is located between the two reflecting portions 122, so the two reflecting portions 122 can reflect more light emitted by the light emitting unit 113, and the reflection efficiency of the light is improved accordingly, and the lighting effect of the entire lighting fixture is improved. better.
  • the shape of the reflecting surface 122a can be flexibly selected according to actual needs, for example, it can be set as a flat surface, a wavy curved surface, a zigzag curved surface, and the like.
  • the reflecting surface 122a is a flat surface, it is more beneficial to control the lighting effect of the lighting fixture first, and it is more convenient to process. Therefore, in the embodiment of the present invention, the reflective surface 122a is preferably a flat surface.
  • the inclination of the reflecting portion 122 with respect to the base portion 121 is the slope of the reflecting surface 122a.
  • the slope of the reflective surface 122a is a preset slope related to the width of the lamp.
  • the preset slope value is the tangent of the co-angle of the inclined angle ⁇ formed between the reflecting surface 122a and the optical axis of the light emitting unit 113. Therefore, the slope of the reflecting surface 122a can be adjusted by designing the value of the inclined angle ⁇ .
  • the inclination angle ⁇ can be selected between 0-90 ° (excluding 0 ° and 90 °).
  • the above-mentioned base 120 can be processed by using an extrusion process of aluminum material, so as to facilitate the one-time molding of the base 120, at the same time, it is convenient to adjust the slope of the reflecting surface 122a, and improve the processing accuracy and structural strength of the base 120.
  • the above-mentioned inclined included angle ⁇ can be made smaller, and the remaining angle of the inclined included angle ⁇ is larger.
  • the slope of the reflecting surface 122a is tan25 ° ⁇ tan30 °; when the lamp width is 120-150mm, the slope of the reflecting surface 122a is tan35 ° ⁇ tan40 °; when the lamp width is 90-120mm , The slope of the reflecting surface 122a is tan40 ° ⁇ tan45 °; when the width of the lamp is 60 ⁇ 90mm, the slope of the reflecting surface 122a is tan50 ° ⁇ tan55 °; when the width of the lamp is 50 ⁇ 60mm, the slope of the reflecting surface 122a is tan75 ° ⁇ tan80 °.
  • the width of the lighting fixture is 200 mm, and the remaining angle of the inclined included angle ⁇ is 25 ° to 30 °.
  • the width of the lighting fixture is 150 mm.
  • the remaining angle of the inclined included angle ⁇ is 35 ° to 40 °; as shown in FIG. 10 to FIG. 12, the width of the lighting fixture is 120 mm, and the remaining angle of the inclined included angle ⁇ is 40 ° to 45 °; as shown in FIG. 13-
  • the width of the lighting fixture is 90mm, and the remaining angle of the inclined angle ⁇ is 50 ° to 55 °.
  • the width of the lighting fixture is 60mm, and the remaining angle of the inclined angle ⁇ The angle is 75 ° to 80 °.
  • the lighting fixture provided by the embodiment of the present invention can obtain relatively ideal light uniformity in a width range of 50 mm to 220 mm. Therefore, the width of the lighting fixture can be flexibly set in a range of 50 mm to 220 mm. It should be noted that the above-mentioned width range is obtained under the condition that the optical height of the lighting fixture is not changed.
  • the optical height refers to the distance between the light emitting unit 113 and the optical mask.
  • the optical height can be set to 35 mm.
  • the light distribution elements 111 can be set to 18, and these light distribution units 18 are evenly arranged on the circuit board 112.
  • Each light distribution element 111 covers two LED light emitting units with a power of 1W, and the power of the entire lamp can be set to 36W.
  • the brightness of the light emitting surface of such a lighting fixture is relatively uniform, and the cost is relatively low.
  • the optical mask of the lighting fixture may specifically be a diffuser mask 200.
  • the diffuser mask 200 is installed on the base 120, and the diffuser mask 200 and the reflecting portion 122 and the base portion 121 together form an optical space.
  • the light source module 110 is located at The optical space. So far, the light emitted by the light emitting unit 113 can be reflected by the reflecting portion 122 and can also be diffused by the diffusion mask 200, so that these lights are emitted more uniformly.
  • the diffusion mask 200 can be formed by adding a certain concentration of diffusion particles to a transparent substrate.
  • the transparent substrate can be made of transparent optical grade PC (Polycarbonate, polycarbonate), or transparent optical grade PMMA (polymethylmethmethacrylate, Polymethyl methacrylate) to achieve better uniformity.
  • the transparent substrate can also be made of materials such as PS (Polystyrene, Polystyrene), PP (Polypropylene, Polypropylene).
  • the transmittance of the diffusion mask 200 will affect the lighting effect of the lighting fixture. When the transmittance is too low, the light emitting efficiency of the lighting module is low. When the transmittance is too high, the diffusion mask 200 cannot effectively block the light. Unit 113, resulting in uneven brightness of the light emitting surface of the lighting fixture. Based on this, the embodiment of the present invention sets the primary transmittance of the diffusion mask 200 to 50% to 55%.

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  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
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Abstract

一种配光元件（111）、光源模组（110）、光源组件（100）及照明灯具，配光元件（111）具有发光单元容纳空间（111a）以及分别位于配光元件（111）两侧的入光面（111b）和出光面（111c），发光单元容纳空间（111a）的内壁为入光面（111b）；出光面（111c）为回转面，出光面（111c）的回转方向为环绕入光面（111b）的方向，入光面（111b）在回转方向上为非回转面。采用配光元件（111）后，无须增加配光元件（111）的数量就可以实现照明灯具的均匀出光，同时配光元件（111）的重量较小，因此采用配光元件（111）的照明灯具具有成本较低的特点。

Description

配光元件、光源模组、光源组件及照明灯具 技术领域
本发明涉及照明装置技术领域，尤其涉及一种配光元件、光源模组、光源组件及照明灯具。
背景技术
随着人们对于环境照明的要求越来越高，照明灯具的性能也得到大幅的提高。目前，照明灯具的种类较多，这些照明灯具内布设有发光单元(例如LED发光单元)，发光单元上罩设有配光元件来实现光线的发散射出。
以线性灯为例，传统的线性灯一般为长条形结构，为了保证该线性灯出光均匀，通常可以采用以下两种方案：
第一种方案，将大量的发光单元均匀分布于电路板上，使得相邻的发光单元之间的距离较小，进而达到均匀出光的效果。采用该方案时，由于发光单元的数量较多、电路板的宽度较大，因此此种线性灯的成本较高。
第二种方案，采用拉伸式透镜扩大发光单元的照射范围。采用该方案时，虽然可以减少发光单元的数量、减小电路板的宽度，但是拉伸式透镜的重量较大，还是会对线性灯的组装、维护等带来不良影响，致使线性灯的成本仍然较高。
可见，传统的线性灯存在成本较高的问题。当然，上述问题同样存在于其他种类的照明灯具中。
发明内容
本发明公开一种配光元件、光源模组、光源组件及照明灯具，以降低照明灯具的成本。
为了解决上述问题，本发明采用下述技术方案：
一种配光元件，所述配光元件具有发光单元容纳空间以及分别位于所述配光元件两侧的入光面和出光面，所述发光单元容纳空间的内壁为所述入光面；
所述出光面为回转面，所述出光面的回转方向为环绕所述入光面的方向，所述入光面在所述回转方向上为非回转面。
一种光源模组，包括电路板、配光元件和发光单元，所述配光元件为上述配光元件，所述发光单元设置在所述电路板上，且位于所述发光单元容纳空间内，所述电路板与所述配光元件相固定。
一种光源组件，包括底座和安装于所述底座上的光源模组，所述光源模组为上述光源模组。
一种照明灯具，包括光学面罩、驱动器和上述光源组件，所述驱动器和所述光源组件均设置于所述光学面罩下方，所述驱动器与所述电路板电连接。
本发明采用的技术方案能够达到以下有益效果：
本发明公开的配光元件的出光面为回转面，同时其入光面为非回转面，因此经过配光元件的光线将呈现出方向性，当配光元件的安装状态发生变化时，其所带来的照明效果也会发生变化。因此，在设计照明灯具时，可以根据灯具的宽度灵活调整配光元件的安装状态，使得配光元件所产生的照明效果更好地匹配灯具的宽度，最终达到照明灯具均匀出光的目的。采用该配光元件后，无须增加配光元件的数量就可以实现照明灯具的均匀出光，同时该配光元件的重量较小，因此采用该配光元件的照明灯具具有成本较低的特点。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1为本发明实施例公开的照明灯具的爆炸图；
图2为本发明实施例公开的照明灯具的部分结构的侧视图；
图3为图2所示结构的俯视图；
图4为图3的局部放大结构示意图；
图5为图4所示结构沿第一面(即A-A向)的切面图；
图6为图4所示结构沿第二面(即B-B向)的切面图；
图7为本发明另一实施例公开的照明灯具的部分结构的侧视图；
图8为图7所示结构的俯视图；
图9为图8的局部放大结构示意图；
图10为本发明又一实施例公开的照明灯具的部分结构的侧视图；
图11为图10所示结构的俯视图；
图12为图11的局部放大结构示意图；
图13为本发明再一实施例公开的照明灯具的部分结构的侧视图；
图14为图13所示结构的俯视图；
图15为图14的局部放大结构示意图；
图16为本发明另一实施例公开的照明灯具的部分结构的侧视图；
图17为图16所示结构的俯视图；
图18为图17的局部放大结构示意图。
附图标记说明：
100-光源组件、110-光源模组、111-配光元件、111a-发光单元容纳空间、111b-入光面、111c-出光面、111ca-横向延伸面、111cb-过渡连接面、111cc-纵向延伸面、111d-第一面、111e-第二面、112-电路板、113-发光单元、120-底座、121-基部、122-反射部、122a-反射面、200-扩散面罩、300-第一端盖、400-第二端盖。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的 实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下结合附图，详细说明本发明各个实施例公开的技术方案。
如图1-6所示，本发明实施例公开一种照明灯具，该照明灯具包括光学面罩、驱动器(图中未示出)、光源组件100、第一端盖300和第二端盖400，光学面罩用于对照明灯具的其他零部件起到防护作用，同时保证照明灯具的美观性。驱动器用于向光源组件100提供能量，使得光源组件100可以发出光线。驱动器和光源组件100均设置于光学面罩的下方，光源组件100发出的光线可以从光学面罩通过。第一端盖300和第二端盖400可以分别安装于光源组件100和光学面罩的两端，以形成封闭空间。本发明实施例公开的照明灯具具体可以是线性灯、吊灯、吸顶灯等等。
光源组件100包括底座120和安装于底座120上的光源模组110，底座120作为光源模组110的安装基础，而光源模组110则作为光源组件100的主体部分，以发出光线。
上述光源模组110具体可以包括电路板112、配光元件111和发光单元113。电路板112与前述的驱动器电连接，使得驱动器可以向电路板112提供发光所需的电能。发光单元113设置在电路板112上，因此电路板112可以向发光单元供电，使得发光单元113发光，该发光单元113可以优选为LED发光单元。配光元件111可以固定于电路板112上，其可以采用反射、折射等形式，对发光单元113所发出的光线进行方向等参数的调整，使得整个照明灯具的发光效果满足需求。具体实施例中，配光元件111可以采用透镜。
该配光元件111具有发光单元容纳空间111a以及分别位于其两侧的入光面111b和出光面111c。发光单元容纳空间111a用于容纳发光单元113，其内壁为入光面111b，因此发光单元113发出的光线首先到达入光面111b，这些光线在配光元件111内经过反射或者折射后再由出光面111c射出。本发明实施例 中，出光面111c为回转面，其回转方向为环绕入光面111b的方向，而入光面111b在该回转方向上则为非回转面。因此透过配光元件111的光线将呈现出方向性，当配光元件111的安装状态发生变化时，其所带来的照明效果也会发生变化。
因此，在设计照明灯具时，可以根据灯具的宽度灵活调整配光元件111的安装状态，使得配光元件111所产生的照明效果更好地匹配灯具的宽度，最终达到照明灯具均匀出光的目的。采用该配光元件111后，无须增加配光元件111的数量就可以实现照明灯具的均匀出光，同时该配光元件111的重量较小，因此采用该配光元件111的照明灯具具有成本较低的特点。
发光单元113发出的光线经过配光元件111后将形成光斑，该光斑的具体形状可以是圆形、椭圆形、三角形、矩形等等。需要说明的是，光斑的形状可以根据照明灯具的整体形状来设计，例如如果照明灯具的整体形状为圆形，则可以设置光斑形状为圆形，以满足均匀出光的需求。针对矩形的照明灯具，例如线性灯，可以将光源模组110所形成的光斑设置为矩形光斑。
为了更准确地调整配光元件111的安装状态，使得照明灯具的发光效果与其宽度更好地匹配，进而优化照明灯具的发光效果，可以进一步使入光面111b的结构更具规律性。具体地，如图4所示，本发明实施例中，入光面111b关于垂直相交的第一面111d和第二面111e均呈对称结构。此时，光线经入光面111b射入，并最终从出光面111c射出后，将关于第一面111d和第二面111e均呈现出一定的对称性，继而达到前述效果。
进一步地，可以使第一面111d和第二面111e的相交线与出光面111c的回转轴共线，此时，入光面111b和出光面111c的几何中心连线平行于发光单元113的光轴，使得发光单元113射出的光线经过配光元件111后，在出光面111c的回转方向上呈现出更明显的规律性，以强化前述技术效果。
一种具体的实施例中，继续参考图4，在垂直于出光面111c的回转轴的截面内，入光面111b的截面为椭圆形截面。此时，光线经过配光元件111后所 表现出的分布规律，基本与该椭圆形截面的结构特性保持一致，具体可以是在该椭圆形截面的短轴方向上较亮，长轴方向上较暗。同时在出光面111c的回转方向上，光线的亮度变化也趋于均匀，使得光线基本不存在较大的突变性，进一步改善照明灯具的光照均匀性。
更为具体地，将入光面111b的下端开口处的截面定义为下端截面，该下端截面垂直于出光面111c的回转轴，此下端截面的长轴尺寸可以是11mm，短轴尺寸可以是4.6mm，入光面111b的最大内凹深度可以设置为3.4mm。出光面111c的最大直径为14mm，最大高度(该高度为出光面111c的回转轴所在方向上的尺寸)为5.2mm。这些结构参数如此设置后，照明灯具的发光效果将更加突出。
当入光面111b具备上述椭圆形截面时，在靠近入光面111b的顶部的方向(该方向可以平行于发光单元113的光轴)上，该椭圆形截面的长轴长度和短轴长度可以不发生变化，也可以单调递增，但是这两种结构都会导致光线经过配光元件111后，在靠近入光面111b的顶部的方向上出现较大的突变，不利于保证照明灯具的光照均匀性。据此，可以使椭圆形截面的长轴长度和短轴长度在前述方向上均单调递减，此时入光面11b在靠近入光面111b的顶部的方向上呈平滑过渡的曲面结构。
为了得到更好的配光效果，可使出光面111c的曲率半径自出光面111c的中心向其边缘先逐渐减小再逐渐增大。当出光面111c的曲率半径减小时，光线发生的偏折将增大，使得光线适当外扩，得到较大的出光范围；当出光面111c的曲率半径增大时，光线发生的偏折将减小，使得光线适当收敛，防止光线照射至不需要光线的地方。可见，采用此种结构后，发光单元113发出的光线可以被更好地利用，同时有利于提升出光均匀性。
进一步的实施例中，如图5和图6所示，出光面111c可以包括横向延伸面111ca、过渡连接面111cb和纵向延伸面111cc，横向延伸面111ca通过过渡连接面111cb与纵向延伸面111cc弧形过渡连接。横向延伸面111ca和纵向延 伸面111cc的曲率变化较小，而过渡连接面111cb的曲率变化则比较大，并且整个出光面111c的曲率半径从横向延伸面111ca至过渡连接面111cb大致呈逐渐减小的趋势，从过渡连接面111cb至纵向延伸面111cc大致呈逐渐增大的趋势。此种变化趋势使得配光元件111的出光范围和出光均匀性都比较理想。
入光面111b可以设置为光面，但是考虑到设置为光面后，光线入射后相对比较集中，容易导致光线经过配光元件111后仍然存在不均匀的问题，因此本发明实施例在入光面111b上设置磨砂混光纹，该磨砂混光纹可以通过喷砂等工艺形成，其具备凹凸不平的特性，因此光线经过该入光面111b后，将会更加分散，以此解决前述问题。
对于单个配光元件111来说，其发光单元容纳空间111a内可以仅设置一个发光单元113，也可以设置至少两个发光单元113。采用后一种方案时，如前所述，由于配光元件111的入光面111b为非回转面，因此透过配光元件111的光线呈现方向性，因此可以在入光面111b尺寸较大的方向上布置至少两个发光单元113，使得发光单元113的布置形式与入光面111b结构特征保持一致性，防止在入光面111b尺寸较大的方向上出现亮度不足的问题，进而使得出光均匀性更高。
单个光源模组110可以仅设置一个配光元件111，也可以设置多个配光元件111，为了获得更大的照射范围，可以将配光元件111设置为多个，各配光元件111可以间隔设置于电路板112上。每个配光元件111可以罩设在至少一个发光单元113上，也可以罩设在多个发光单元113上，此时，同一个配光元件111所罩设的多个发光单元113即形成发光单元组，对应于多个配光元件111的多个发光单元组同样间隔设置于电路板112上。随着发光单元组的数量不断增加，光源模组的照射范围随之增大。
为了使光源模组110所发出的光线更加均匀，本申请实施例采用如下方案：单个发光单元组中，相邻的发光单元113之间的间距为第一间距，相邻的发光单元组之间的间距为第二间距，第一间距小于第二间距。也就是说，发光单元 容纳空间111a中的发光单元113布置得相对比较集中，使得单个光源模组110所发出的光线比较明亮；而各发光单元组则布置得相对比较分散，使得整个照明灯具所发出的光线相对柔和一些，不会刺伤用户的眼睛。
进一步地，上述第二间距与第一间距之间的比值可以设置为60～150，以使照明灯具的发光效果更优。具体地，第一间距可以是相邻的发光单元113的边缘之间的最小距离，其可以设置为0.5～1mm，第二间距可以是相邻的配光元件111的边缘之间的最小距离，其可以设置为62～66mm。
电路板112可以设置为条形结构，以便于安装多个发光单元113和配光元件111。采用此种电路板112的照明灯具可以是线性灯。如前所述，透过配光元件111的光线会呈现出一定的方向性，所以配光元件111和发光单元113所组成的整体结构在电路板112上的设置状态，将会直接影响照明灯具的照明效果。具体而言，配光元件111和发光单元113在照明灯具的宽度方向上占据的空间发生变化时，照明灯具的照明效果就会发生变化。所以，可以根据灯具宽度对应设置配光元件111和发光单元113与电路板112的延伸方向之间的夹角，该夹角可以定义为配光夹角。也就是说，此配光夹角为与灯具宽度相关的预设夹角，其可以在0～90°之间变化。
一种具体的实施例中，灯具宽度越小，上述配光角度越大。当灯具宽度为150～220mm时，配光夹角可以为0°；当灯具宽度为120～150mm时，配光夹角可以为5～10°；当灯具宽度为90～120mm时，配光夹角可以为20～80°；当灯具宽度为60～90mm时，配光夹角可以为90°。需要说明的是，此处所述的灯具宽度范围中，重复的端点值可以在其所在的数值范围内任选其一，继而选择配光夹角的数值。
如图2-图4所示，该照明灯具的宽度为200mm，配光角度为0°；如图7-图9所示，该照明灯具的宽度为150mm，配光角度为0°；如图10-图12所示，该照明灯具的宽度为120mm，配光角度为5～10°；如图13-图15所示，该照明灯具的宽度为90mm，配光角度为90°；如图16-图18所示，该照明灯具的宽 度为60mm，配光角度为90°。
光源组件100中，底座120可以包括基部121以及设置于基部121上的反射部122，光源模组110安装于基部121，反射部122具有朝向光源模组110的反射面122a。基部121和反射部122均可以采用板状结构。发光单元113发出的光线中，一部分可以直接射出，另一部分则照射到反射部122的反射面122a上，反射面122a再把这部分光线反射，最终使这部分光线射出。可见，采用此种底座120时，由于反射部122的反射作用，光线从配光元件111射出后将再一次发生方向变化，进而使得光源组件100所发出的光线更加均匀。
为了进一步强化前述技术效果，可以将反射部122设置为两个，这两个反射部122分别位于光源模组110的相对两侧。此时，发光单元113位于这两个反射部122之间，因此这两个反射部122可以对发光单元113发出的更多光线进行反射，光线的反射效率随之提升，整个照明灯具的照明效果更优。
反射面122a的形状可以根据实际需求灵活选择，例如可以设置为平面、波浪形曲面、锯齿形曲面等等，当反射面122a为平面时，首先更利于控制照明灯具的照明效果，其次更便于加工，因此本发明实施例优选反射面122a为平面。
设置上述反射部122后，反射部122相对于基部121的倾斜程度就是反射面122a的斜率，该斜率不同时将会产生不同的发光效果，也就可以根据照明灯具的不同宽度适应性设置反射部122的斜率，以提升照明灯具的光照均匀性。因此本发明实施例中，反射面122a的斜率为与灯具宽度相关的预设斜率。该预设斜率的数值为反射面122a与发光单元113的光轴之间形成的倾斜夹角α的余角的正切值，因此可以通过设计该倾斜夹角α的数值达到调整反射面122a的斜率这一目的。具体地，此倾斜夹角α可以在0～90°(不包含0°和90°)之间选择。
上述底座120可以采用铝材挤压成型的工艺加工而成，以便于底座120的一次性成型，同时便于调整反射面122a的斜率，提高底座120的加工精度和 结构强度。
一种具体的实施例中，为了实现均匀发光，当灯具宽度越小时，可以使上述倾斜夹角α越小，该倾斜夹角α的余角则越大。当灯具宽度为150～220mm时，反射面122a的斜率为tan25°～tan30°；当灯具宽度为120～150mm时，反射面122a的斜率为tan35°～tan40°；当灯具宽度为90～120mm时，反射面122a的斜率为tan40°～tan45°；当灯具宽度为60～90mm时，反射面122a的斜率为tan50°～tan55°；当灯具宽度为50～60mm时，反射面122a的斜率为tan75°～tan80°。需要说明的是，此处所述的灯具宽度范围中，重复的端点值可以在其所在的数值范围内任选其一，继而选择配光夹角的数值。
具体地，如图2-图4所示，该照明灯具的宽度为200mm，倾斜夹角α的余角为25°～30°；如图7-图9所示，该照明灯具的宽度为150mm，倾斜夹角α的余角为35°～40°；如图10-图12所示，该照明灯具的宽度为120mm，倾斜夹角α的余角为40°～45°；如图13-图15所示，该照明灯具的宽度为90mm，倾斜夹角α的余角为50°～55°；如图15-图18所示，该照明灯具的宽度为60mm，倾斜夹角α的余角为75°～80°。
通过上述各技术方案，本发明实施例提供的照明灯具在50mm～220mm的宽度范围内都可以获得比较理想的出光均匀性，因此该照明灯具的宽度可以在50mm～220mm的范围内灵活设置。需要说明的是，上述宽度范围是在照明灯具的光学高度不变的情况下获得的，该光学高度指的是发光单元113与光学面罩之间的距离，该光学高度可以设置为35mm。
一种具体的实施例中，对于长度为1200mm、宽度为150mm、高度为40mm的线性灯来说，配光元件111可以设置为18个，这些配光单元18均匀排布于电路板112，每个配光元件111罩设两个功率为1W的LED发光单元，整灯功率可以设置为36W。此种照明灯具的出光表面亮度比较均匀，且成本相对比较低。
可选的实施例中，照明灯具的光学面罩具体可以采用扩散面罩200，该扩 散面罩200安装于底座120，且扩散面罩200与反射部122、基部121共同围成光学空间，光源模组110位于该光学空间内。至此，发光单元113发出的光线可以被反射部122反射，同时还可以被扩散面罩200扩散，从而使得这些光线更均匀地射出。扩散面罩200可以通过在透明基材中添加一定浓度的扩散粒子而形成，该透明基材可以采用透明光学级PC(Polycarbonate，聚碳酸酯)制成，也可以采用透明光学级PMMA(polymethyl methacrylate，聚甲基丙烯酸甲酯)制成，以达到更好的匀光效果。当然，透明基材还可以采用PS(Polystyrene，聚苯乙烯)、PP(Polypropylene，聚丙烯)等材料制成。
扩散面罩200的透过率会影响照明灯具的发光效果，当该透过率过低时，照明模组的出光效率较低，当该透光率过高时，则扩散面罩200无法有效遮挡发光单元113，导致照明灯具的出光表面亮度不均。基于此，本发明实施例将扩散面罩200的一次透过率设置为50％～55％。
本发明上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本发明的实施例而已，并不用于限制本发明。对于本领域技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (26)

  1. 一种配光元件，其特征在于，所述配光元件具有发光单元容纳空间(111a)以及分别位于所述配光元件两侧的入光面(111b)和出光面(111c)，所述发光单元容纳空间(111a)的内壁为所述入光面(111b)；
    所述出光面(111c)为回转面，所述出光面(111c)的回转方向为环绕所述入光面(111b)的方向，所述入光面(111b)在所述回转方向上为非回转面。
  2. 根据权利要求1所述的配光元件，其特征在于，所述入光面(111b)关于垂直相交的第一面(111d)和第二面(111e)均呈对称结构。
  3. 根据权利要求2所述的配光元件，其特征在于，所述第一面(111d)和所述第二面(111e)的相交线与所述出光面(111c)的回转轴共线。
  4. 根据权利要求2所述的配光元件，其特征在于，在垂直于所述出光面(111c)的回转轴的截面内，所述入光面(111b)的截面为椭圆形截面。
  5. 根据权利要求4所述的配光元件，其特征在于，在靠近所述入光面(111b)的顶部的方向上，所述椭圆形截面的长轴长度和短轴长度均单调递减。
  6. 根据权利要求1所述的配光元件，其特征在于，所述出光面(111c)的曲率半径自所述出光面(111c)的中心向其边缘先逐渐减小再逐渐增大。
  7. 根据权利要求6所述的配光元件，其特征在于，所述出光面(111c)包括横向延伸面(111ca)、过渡连接面(111cb)和纵向延伸面(111cc)，所述横向延伸面(111ca)通过所述过渡连接面(111cb)与所述纵向延伸面(111cc)弧形过渡连接。
  8. 根据权利要求1所述的配光元件，其特征在于，所述入光面(111b)设置有磨砂混光纹。
  9. 根据权利要求1-8中任一项所述的配光元件，其特征在于，所述配光元件为透镜。
  10. 一种光源模组，其特征在于，包括电路板(112)、配光元件(111)和发光单元(113)，所述配光元件(111)为权利要求1-9中任一项所述的配光元件(111)，所述发光单元(113)设置在所述电路板(112)上，且位于所述发光单元容纳空间(111a)内，所述电路板(112)与所述配光元件(111)相固定。
  11. 根据权利要求10所述的光源模组，其特征在于，所述光源模组配置为形成矩形光斑。
  12. 根据权利要求10所述的光源模组，其特征在于，所述配光元件(111)设置为多个，各所述配光元件(111)间隔设置于所述电路板(112)上。
  13. 根据权利要求12所述的光源模组，其特征在于，所述发光单元容纳空间(111a)内设置至少两个所述发光单元(113)，同一个所述配光元件(112)所罩设的多个发光单元(113)形成发光单元组。
  14. 根据权利要求13所述的光源模组，其特征在于，单个所述发光单元组中，相邻的所述发光单元(113)之间的间距为第一间距，相邻的所述发光单元组之间的间距为第二间距，所述第一间距小于所述第二间距。
  15. 根据权利要求14所述的光源模组，其特征在于，所述第二间距与所述第一间距之间的比值为60～150。
  16. 根据权利要求10所述的光源模组，其特征在于，所述电路板(112)为条形结构，所述配光元件(111)和所述发光单元(113)与所述电路板(112)的延伸方向之间的夹角为配光夹角，所述配光夹角为与灯具宽度相关的预设夹角。
  17. 根据权利要求16所述的光源模组，其特征在于：
    所述灯具宽度为150～220mm，所述配光夹角为0°；或者
    所述灯具宽度为120～150mm，所述配光夹角为5～10°；或者
    所述灯具宽度为90～120mm，所述配光夹角为20～80°；或者
    所述灯具宽度为60～90mm，所述配光夹角为90°。
  18. 一种光源组件，其特征在于，包括底座(120)和安装于所述底座(120)上的光源模组(110)，所述光源模组(110)为权利要求10-17中任一项所述的光源模组(110)。
  19. 根据权利要求18所述的光源组件，其特征在于，所述底座(120)包括基部(121)以及设置于所述基部(121)上的反射部(122)，所述光源模组(110)安装于所述基部(121)，所述反射部(122)具有朝向所述光源模组(110)的反射面(122a)。
  20. 根据权利要求19所述的光源组件，其特征在于，所述反射面(122a)为平面，所述反射面(122a)的斜率为与灯具宽度相关的预设斜率。
  21. 根据权利要求20所述的光源组件，其特征在于：
    所述灯具宽度为150～220mm，所述斜率为tan25°～tan30°；或者
    所述灯具宽度为120～150mm，所述斜率为tan35°～tan40°；或者
    所述灯具宽度为90～120mm，所述斜率为tan40°～tan45°；或者
    所述灯具宽度为60～90mm，所述斜率为tan50°～tan55°；或者
    所述灯具宽度为50～60mm，所述斜率为tan75°～tan80°。
  22. 根据权利要求19所述的光源组件，其特征在于，所述反射部(122)设置为两个，两个所述反射部(122)分别位于所述光源模组(110)的相对两侧。
  23. 一种照明灯具，其特征在于，包括光学面罩、驱动器和权利要求18-22 中任一项所述的光源组件(100)，所述驱动器和所述光源组件(100)均设置于所述光学面罩下方，所述驱动器与所述电路板(112)电连接。
  24. 根据权利要求23所述的照明灯具，其特征在于，所述光学面罩为扩散面罩(200)，所述扩散面罩(200)安装于所述底座(120)，且所述扩散面罩(200)与所述反射部(122)、所述基部(121)共同围成光学空间，所述光源模组(110)位于所述光学空间内。
  25. 根据权利要求24所述的照明灯具，其特征在于，所述扩散面罩(200)的一次透光率为50％～55％。
  26. 根据权利要求23所述的照明灯具，其特征在于，所述照明灯具为线性灯，所述线性灯的宽度为50mm～220mm。
PCT/CN2019/106269 2018-09-17 2019-09-17 配光元件、光源模组、光源组件及照明灯具 Ceased WO2020057515A1 (zh)

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