CN112856255A - Semi-arc facula lens - Google Patents

Semi-arc facula lens Download PDF

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Publication number
CN112856255A
CN112856255A CN202110309351.0A CN202110309351A CN112856255A CN 112856255 A CN112856255 A CN 112856255A CN 202110309351 A CN202110309351 A CN 202110309351A CN 112856255 A CN112856255 A CN 112856255A
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CN
China
Prior art keywords
arc
lens
semi
lens body
spot
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.)
Withdrawn
Application number
CN202110309351.0A
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Chinese (zh)
Inventor
任敏
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.)
Dongguan Hengzheng Optical Technology Co ltd
Original Assignee
Dongguan Hengzheng Optical Technology 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
Application filed by Dongguan Hengzheng Optical Technology Co ltd filed Critical Dongguan Hengzheng Optical Technology Co ltd
Publication of CN112856255A publication Critical patent/CN112856255A/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • 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
    • F21V31/00—Gas-tight or water-tight arrangements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention discloses a semi-arc facula lens which is used for placing LED lamp beads and comprises a lens body, wherein the bottom of the lens body is provided with a first groove with a downward opening, the LED lamp beads are arranged in the first groove and positioned at the bottom, the side surface of the lens body is provided with a first arc reflecting surface and a second arc reflecting surface, the top of the lens body is divided into a semicircular plane and a semicircular annular free curved surface, the annular free curved surface forms a second groove with an upward opening, the plane is positioned above the first arc reflecting surface, and the annular free curved surface is positioned above the second arc reflecting surface. The semi-arc light spot lens can realize the irradiation of light spots around a cylindrical building, and can provide the utilization rate of light; and the lens can be realized by adopting a single lens, the processing and the forming are easy, and the production cost is reduced.

Description

Semi-arc facula lens
Technical Field
The invention relates to the technical field of lenses, in particular to a semi-arc-shaped facula lens.
Background
The lens is mainly used for outdoor landscape brightening and mainly aims at projection illumination of trees and columnar buildings. The conventional lens irradiation light spot is circular, and when the conventional lens is used for projection illumination of a cylindrical building, a part of light is blocked by the cylindrical building, so that the light cannot be utilized, and light loss is caused. In the prior art, other modes are adopted to realize the annular light spot, but the product structure and the product combination number are more complex, and the cost is higher.
Although the prior patent document CN207778336U discloses a lens capable of projecting arc-shaped light spots, the patent also discloses a lens for projecting arc-shaped light spots, but how to realize the arc-shaped light spots structurally is not pointed out in the patent, and the technical problems mainly solved by the patent are that the prior lens has a complicated structure, is not changed in assembly or disassembly, and has a poor light transmission effect.
To this end, we propose a semi-arc spot lens.
Disclosure of Invention
The invention mainly aims to provide a semi-arc-shaped light spot lens which has the advantages of forming semi-arc-shaped light spots and being simple in structure.
In order to achieve the purpose, the invention provides a semi-arc facula lens which is used for placing an LED lamp bead and comprises a lens body, wherein a first groove with a downward opening is formed in the bottom of the lens body, the LED lamp bead is arranged in the first groove and positioned at the bottom, a first arc reflecting surface and a second arc reflecting surface are arranged on the side surface of the lens body, the top of the lens body is divided into a semicircular plane and a semicircular annular free curved surface, the annular free curved surface forms a second groove with an upward opening, the plane is positioned above the first arc reflecting surface, and the annular free curved surface is positioned above the second arc reflecting surface.
Preferably, the first arc-shaped emitting surface is rotationally symmetrical, and a reverse semi-arc-shaped light spot is formed in the light emergent direction; the second arc-shaped emitting surface is rotationally symmetrical, and a forward semi-arc-shaped light spot is formed in the light emergent direction; and the reverse semi-arc-shaped light spot and the forward semi-arc-shaped light spot are superposed into a complete semi-arc-shaped light spot.
Preferably, the first arc-shaped emitting surface and the central line of the lens body form a first included angle, and the second arc-shaped emitting surface and the central line of the lens body form a second included angle; the first included angle is greater than the second included angle.
Preferably, the first arc-shaped emitting surface and the second arc-shaped reflecting surface are all total reflection surfaces.
Preferably, the plane and the horizontal direction form a third included angle, and the angle value of the third included angle changes the circle center of the semi-arc-shaped light spot.
Preferably, the top of the first groove is a free-form surface, and the free-form surface is designed according to different scenes.
Preferably, half arc facula lens still contain waterproof construction and first locating column, waterproof construction surround in the lens body outside, first locating column by waterproof construction bottom downwardly extending, the PCB board is located lens body below, first locating column inserts fix in the PCB board.
Preferably, the semi-arc facula lens further comprises a second positioning column, the second positioning column extends downwards from the bottom of the lens body, the PCB is located below the lens body, and the second positioning column is inserted into the PCB and fixed.
Compared with the prior art, the invention has the following beneficial effects: the semi-arc light spot lens of the invention overlaps the reverse semi-arc light spot formed by the first arc reflecting surface with the forward arc light spot formed by the second arc reflecting surface, thereby forming a complete semi-arc light spot, realizing the irradiation of the light spot surrounding the cylindrical building and providing the utilization rate of light; and the lens can be realized by adopting a single lens, the processing and the forming are easy, and the production cost is reduced.
Drawings
Fig. 1 is a perspective view of a half-arc spot lens according to a first embodiment of the present invention.
Fig. 2 is a sectional view of a half-arc spot lens according to a first embodiment of the present invention.
Fig. 3 is a cross-sectional view of a half-arc spot lens according to a first embodiment of the present invention.
Fig. 4a is a first application scene view (tree) of the semi-arc-shaped light spot lens of the invention.
Fig. 4b is a second application scene diagram (cylindrical building) of the semi-arc-shaped spot lens of the invention.
Fig. 4c is a third application scene diagram (roof corrugation) of the semi-arc-shaped spot lens of the invention.
Fig. 5 is a perspective view of a semi-arc spot lens according to a second embodiment of the present invention.
Fig. 6 is a cross-sectional view of a semi-arc spot lens according to a second embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The invention provides a semi-arc facula lens 100, the semi-arc facula lens 100 is used for placing LED lamp beads 200, the light of the LED lamp beads 200 is emitted out through the lens and irradiates on an illuminating object, and the semi-arc facula lens is mainly applied to outdoor landscape brightening.
Referring to fig. 1-3, the semi-arc spot lens 100 of the present invention includes a lens body 10, a first groove 11 with a downward opening is formed at the bottom of the lens body 10, an LED lamp bead 200 is disposed in the first groove 11 and located at the bottom, a first arc reflecting surface 12 and a second arc reflecting surface 13 are disposed on the side surface of the lens body 10, and both the first arc emitting surface and the second arc reflecting surface 13 are total reflecting surfaces. Then, the light emitted from the LED lamp bead 200 is emitted out of the lens by the action of the first arc-shaped reflecting surface 12 and the second arc-shaped reflecting surface 13. Furthermore, the top of the first groove 11 is a free-form surface, and the free-form surface is designed according to different scenes.
Specifically, the first arc-shaped emitting surface and the second arc-shaped emitting surface form a funnel shape with a wide top and a narrow bottom, the first arc-shaped emitting surface and the central line of the lens body 10 form a first included angle, and the second arc-shaped emitting surface and the central line of the lens body 10 form a second included angle. The light spot is projected in the same quadrant by changing the angle values of the first included angle and the second included angle. Preferably, the first included angle is larger than the second included angle, the range of the first included angle is larger than 0 degree and smaller than 90 degrees, and the range of the second included angle is larger than 0 degree and smaller than 90 degrees.
Referring to fig. 1-3, the top of the lens body 10 of the present embodiment is divided into a semicircular plane 14 and a semicircular annular free-form surface, the annular free-form surface forms a second groove 15 with an upward opening, the plane 14 is located above the first arc-shaped reflecting surface 12, and the annular free-form surface is located above the second arc-shaped reflecting surface 13. The first arc-shaped emitting surface is rotationally symmetrical, and a reverse semi-arc-shaped light spot is formed in the light emergent direction; the second arc-shaped emitting surface is rotationally symmetrical, and a forward semi-arc-shaped light spot is formed in the light ray emergent direction; the reverse semi-arc-shaped light spot and the forward semi-arc-shaped light spot are overlapped to form a complete semi-arc-shaped light spot, so that the light spot surrounds a cylindrical building or a tree, and the utilization rate of light can be improved. Wherein, the reverse half-arc-shaped light spot and the forward half-arc-shaped light spot are positioned in the same quadrant. Fig. 4a, 4b and 4c show application scenarios of the semi-arc spot lens 100 of the present invention, fig. 4a shows an application scenario of surrounding illumination of trees, fig. 4b shows an application scenario of surrounding illumination of columnar buildings, and fig. 4c shows an application scenario of side illumination of roof corrugations.
Furthermore, the plane 14 in the present invention does not coincide with the horizontal plane 14, and the end of the plane 14 close to the annular free-form surface is higher than the end of the plane 14 far from the annular free-form surface. The plane 14 forms a third angle with the horizontal direction. The angle value of the third included angle changes the center of the semi-arc light spot, that is, the center of the semi-arc light spot is not located on the center line of the lens body 10, and can be adjusted according to the actual shape of a building. Preferably, the third included angle is in a range of greater than 0 degrees and less than 45 degrees.
With continued reference to fig. 1-3, the half-arc spot lens 100 of the first embodiment includes a waterproof structure 20. Specifically, half arc facula lens 100 of this embodiment still contains waterproof construction 20 and first locating column 30, and waterproof construction 20 surrounds in the lens body 10 outside, and first locating column 30 is by the downward extension of waterproof construction 20 bottoms, and the PCB board is located lens body 10 below, and on LED lamp pearl 200 installed the PCB board, first locating column 30 inserted the PCB inboard and fixed. At this time, the upper surface of the PCB contacts with the bottom of the lens body 10 and the bottom of the waterproof structure 20. The lens body 10 can be protected from water by the waterproof structure 20.
Referring to fig. 5-6, the present embodiment is a second embodiment of the half-arc spot lens 100', the second embodiment has the same structure as the lens body 10', the first groove 11', the first arc reflective surface 12', the second arc reflective surface 13', the plane 14' and the second groove 15 'of the first embodiment, and the main differences between the half-arc spot lens 100' of the second embodiment and the half-arc spot lens 100 of the first embodiment are as follows: the position of the positioning column is different without a waterproof structure. Specifically, the semi-arc spot lens 100' of this embodiment further includes a second positioning column 30', the second positioning column 30' extends downward from the bottom of the lens body 10', a PCB (not shown) is located below the lens body 10', the LED lamp beads 200' are mounted on the PCB, and the second positioning column 30' is inserted into the PCB and fixed. At this time, the upper surface of the PCB board is in contact with the bottom of the lens body 10'.
Compared with the prior art, the invention has the following beneficial effects: the semi-arc light spot lenses (100, 100') overlap reverse semi-arc light spots formed by the first arc reflecting surfaces (12, 12') with forward arc light spots formed by the second arc reflecting surfaces (13, 13'), so that a complete semi-arc light spot is formed, the light spots can surround the periphery of a cylindrical building for irradiation, and the utilization rate of light rays can be increased; and the lens can be realized by adopting a single lens, the processing and the forming are easy, and the production cost is reduced.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a half arc facula lens for place LED lamp pearl, its characterized in that contains the lens body, a first recess that open side down has been seted up to lens body bottom, LED lamp pearl is located in the first recess and be located the bottom, lens body side is provided with first arc plane of reflection and second arc plane of reflection, lens body top is equallyd divide for semicircular plane and semicircular annular free curved surface, annular free curved surface constitutes an ascending second recess of opening, the plane is located first arc plane of reflection top, annular free curved surface is located second arc plane of reflection top.
2. The half-arc spot lens according to claim 1, wherein the first arc emitting surface is rotationally symmetric to form a reverse half-arc spot in the light emitting direction; the second arc-shaped emitting surface is rotationally symmetrical, and a forward semi-arc-shaped light spot is formed in the light emergent direction; and the reverse semi-arc-shaped light spot and the forward semi-arc-shaped light spot are superposed into a complete semi-arc-shaped light spot.
3. The half-arc spot lens of claim 1, wherein the first arc emitting surface forms a first angle with the center line of the lens body, and the second arc emitting surface forms a second angle with the center line of the lens body; the first included angle is greater than the second included angle.
4. The semi-arc spot lens of claim 1 wherein the first arc emitting surface and the second arc reflecting surface are all total reflecting surfaces.
5. The semi-arc spot lens of claim 1 wherein the plane and the horizontal form a third angle, and the third angle changes the center of the semi-arc spot.
6. The semi-arc spot lens of claim 1 wherein the top of the first groove is a free-form surface, the free-form surface being designed according to different scenes.
7. The half-arc spot lens according to claim 1, further comprising a waterproof structure surrounding the lens body and a first positioning pillar extending downward from a bottom of the waterproof structure, wherein the PCB is located below the lens body, and the first positioning pillar is inserted into the PCB for fixing.
8. The semi-arc spot lens according to claim 1, further comprising a second positioning column extending downward from the bottom of the lens body, wherein a PCB is located below the lens body, and the second positioning column is inserted into and fixed to the PCB.
CN202110309351.0A 2020-05-22 2021-03-23 Semi-arc facula lens Withdrawn CN112856255A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2020102236758 2020-05-22
CN202010223675.8A CN111350952A (en) 2020-05-22 2020-05-22 Semi-arc facula lens

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CN112856255A true CN112856255A (en) 2021-05-28

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CN202010223675.8A Withdrawn CN111350952A (en) 2020-05-22 2020-05-22 Semi-arc facula lens
CN202110309351.0A Withdrawn CN112856255A (en) 2020-05-22 2021-03-23 Semi-arc facula lens

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114135839A (en) * 2020-09-03 2022-03-04 上海芯龙光电科技有限公司 Lens capable of projecting arc-shaped light spots

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Application publication date: 20210528