CN113237035A - Polarized lens capable of gathering light - Google Patents

Abstract

The invention provides a polarized lens capable of gathering light, wherein a first arch part and a second arch part are formed at the top of the lens, the first arch part comprises a first emergent surface and a first reflecting surface, a first edge formed by connecting the first emergent surface and the first reflecting surface is high in the middle, the left side and the right side of the first edge are gradually close to the bottom, the first reflecting surface extends from the first edge to the lower part of the rear end, a second edge of the outer surface of the second arch part is gradually close to the bottom, so that the outer surface of the second arch part is a convex surface, part of the edge of the outer surface of the second arch part is connected to the first emergent surface, an incident hole is formed at the bottom of the lens, and the incident hole at least comprises a cavity body which is formed at the rear end of the second arch part and is used for placing a light source. The invention can increase the light gathering effect and reduce the light scattered to the side edge while realizing the polarization.

Description

Polarized lens capable of gathering light

Technical Field

The invention relates to the technical field of illumination, in particular to a polarized lens capable of gathering light, a light-emitting unit and a lamp.

Background

Note that the contents described in this section do not represent all the related art.

There are certain requirements for lighting in places such as gymnasiums. In a stadium, as the light fixtures are mounted outside the pitch, it is necessary to illuminate the pitch with light. The existing lens can make most of light rays spread to seats of audiences, influence the visional feelings of the audiences and do not meet related requirements.

Disclosure of Invention

In view of the above, in order to solve one of the technical problems in the related art to a certain extent, it is necessary to provide a polarizing lens capable of converging light, so as to achieve polarization while increasing the light converging effect and reducing the light diverging to the side.

The invention provides a polarized lens capable of gathering light, which comprises a front end, a rear end, a left side and a right side, wherein a first arched part and a second arched part positioned at the front end of the first arched part are formed at the top of the lens, the outer surface of the first arched part comprises a first emergent surface and a first reflecting surface, the first emergent surface and the first reflecting surface are free curved surfaces, a first edge formed by connecting the first emergent surface and the first reflecting surface is high in the middle, the left side and the right side are gradually close to the bottom, the first reflecting surface extends from the first edge to the lower part of the rear end, the outer surface of the second arched part is a free curved surface, a second edge of the outer surface of the second arched part is gradually close to the bottom so that the outer surface of the second arched part is convex, and part of the edge of the outer surface of the second arched part is connected to the first emergent surface, and the bottom of the lens is provided with an incident hole, and the incident hole at least comprises a cavity body which is formed at the rear end of the second arch part and used for placing a light source.

Further, the incident hole includes first refraction face, first refraction face is the free curved surface of indent, the middle part of the lower limb of first refraction face is close to the front end, and its left and right sides is close to the rear end, first refraction face is followed the lower limb extends to the back top.

Further, the first refraction surface includes a refraction portion located right below the first arching portion.

Furthermore, the entry hole further comprises a second refraction surface, the second refraction surface is an inwards concave free-form surface, the middle of the lower edge of the second refraction surface is close to the rear end, the left side and the right side of the second refraction surface are close to the front end, the second refraction surface extends upwards from the lower edge and is connected with the first refraction surface, the lens is provided with a second reflection surface located on the rear side of the second refraction surface, and the second reflection surface is a free-form surface used for reflecting part of light rays to the first arching portion.

Further, the lens comprises a regular panel, the first arched part and the second arched part are formed on the regular panel, a groove is further formed in the bottom of the lens, and one surface, close to the entrance hole, of the groove forms the second reflecting surface.

Furthermore, the light source comprises a plurality of first arched parts which are sequentially arranged from front to back, and a first reflecting surface of the first arched part close to the front end is connected with a part of a first emergent surface of the first arched part adjacent to the rear end.

Further, one side edge of the second arch portion protrudes more outward than the other side edge.

The invention provides a light-emitting unit which comprises a light source and a polarized lens capable of gathering light, wherein the light source is placed in a cavity body.

The invention provides a lamp which comprises at least one light-emitting unit.

The invention has the advantages that: placing a light source in a cavity body, wherein the light source is positioned at the rear lower end of a second arch part, a first edge formed by connecting a first emergent surface of the first arch part and a first reflecting surface is high in the middle, the left side and the right side are gradually close to the bottom, the first reflecting surface extends from the first edge to the lower part of the rear end, a small part of light originally diffused towards the left side and the right side can be gathered towards the middle through the first reflecting surface and is emitted towards the front upper end to form a light spot with a notch, a second edge of the outer surface of the second arch part is gradually close to the bottom to enable the outer surface of the second arch part to be a convex surface, most of light originally diffused is gathered towards the middle through the outer surface of the second arch part and is emitted towards the front upper end to form a large-area light spot, the light spot is partially accommodated in the notch of the light spot formed by the first arch part and is overlapped to finally obtain a large light spot with an obvious outline, and the edge of the rear end of the large light spot is relatively convex, be suitable for the illumination of court corner, so realized the polarisation effect, the light of both sides is gathered together to the centre, reduces the light of dispersing to the side.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a second schematic structural diagram of the embodiment of the present invention.

FIG. 3 is a top view of an embodiment of the present invention.

Fig. 4 is a bottom view of an embodiment of the present invention.

Fig. 5 is a cross-sectional view of an embodiment of the present invention.

Fig. 6 is a first pattern of spots formed by the first arching near the front end.

Fig. 7 is a first pattern of spots formed by the first hump near the back end.

Fig. 8 is a second pattern of spots formed by the second raised portion.

Fig. 9 is a large spot diagram of the lens as a whole.

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

This embodiment provides a polarizedlens 100 that can gather together light, as shown in fig. 1-5,lens 100 includes front end, rear end, left side and right side, and the front end is light polarization direction, and the left side and right side are the both sides of fore-and-aft direction to light outgoing direction is the top, and the one side of placing the light source is the bottom.

Thelens 100 has afirst arch portion 10 and asecond arch portion 20 located at the front end of thefirst arch portion 10 formed on the top thereof, and thefirst arch portion 10 is disposed substantially laterally on both left and right sides.

Thelens 100 may further include aregular panel 30, and the first andsecond domes 10 and 20 are formed on theregular panel 30 to facilitate the array arrangement of thelens 100. Theregular panel 30 may be arectangular panel 30, theedge 31 of therectangular panel 30 forms an acute angle with the front-back direction, after thelens 100 is regularly installed on thelamp holder panel 30, the light exit direction and the edge included angle X of therectangular panel 30 form an acute angle, so that the lamp can be installed at four corners of a court.

The outer surface of thefirst arching portion 10 includes afirst emission surface 11 and afirst reflection surface 12, and thefirst emission surface 11 and thefirst reflection surface 12 are free-form surfaces. Afirst edge 13 formed by connecting thefirst emission surface 11 and thefirst reflection surface 12 is high in the middle, and the left and right sides gradually approach to the bottom, thefirst reflection surface 12 extends from thefirst edge 13 to the rear end downward, and thefirst emission surface 11 and thefirst reflection surface 12 form a convex tip at thefirst edge 13.

In the present embodiment, thelens 100 includes a plurality of first raisedportions 10, and the plurality of first raisedportions 10 are arranged in this order from front to back. Thefirst reflection surface 12 of thefirst dome 10 near the front end is in contact with a portion of thefirst exit surface 11 of thefirst dome 10 adjacent to and near the rear end, i.e. thefirst reflection surface 12 of thefirst dome 10 at the front end is not connected or not completely connected to thefirst edge 13 of thefirst dome 10 at the rear end, thereby leaving thefirst exit surface 11 of thefirst dome 10 at the rear end. In the figure, the first reflectingsurface 12 of thefirst arch portion 10 at the front end is connected to thefirst exit surface 11 of thefirst arch portion 10 at the rear end to form aconnecting line 14, and the connectingline 14 is an arc line which is convex in the middle and the left and right sides approach to the bottom end.

Theouter surface 21 of the second raisedportion 20 is a free-form surface, which is a second emission surface. Thesecond edge 22 of the outer surface of thesecond arch 20 is progressively closer to the base so that theouter surface 21 of thesecond arch 20 is convex. A part of the edge of theouter surface 21 of the second protrudingportion 20 is joined to thefirst exit surface 11, so that theintersection line 23 formed by thefirst exit surface 11 of thefirst protruding portion 10 and the outer surface of the second protrudingportion 20 is an arc which is convex in the middle and has two sides approaching the bottom end.

The bottom of thelens 100 is formed with anincident hole 40, and theincident hole 40 at least includes acavity body 41 formed at the rear end of thesecond arch portion 20 for accommodating thelight source 200.

Thelight source 200 is placed in thecavity 41, and since thelight source 200 is located at the rear lower end of thesecond arch portion 20, most of the scattered light enters thesecond arch portion 20, and a small part of the scattered light enters thefirst arch portion 10.

Since thefirst emitting surface 11 of thefirst arching portion 10 and the first reflectingsurface 12 are connected to form afirst edge 13 which is high in the middle and the left and right sides of the first arching portion gradually approach to the bottom, and the first reflectingsurface 12 extends from thefirst edge 13 to the lower part of the rear end, a small part of light rays originally diverging to the left and right sides can converge to the middle through the first reflectingsurface 12 and exit to the front upper end, as shown in fig. 6, a first light spot 110 (a contour circled by a dotted line in fig. 6) having anotch 111 is formed, thefirst light spot 110 is approximately in an arc-shaped strip shape, thenotch 111 is formed by the arc-shaped strip, and thenotch 111 faces to the front end.

When a plurality of the firstarched portions 10 are included, each of the firstarched portions 10 forms afirst light spot 110 having a substantially arc-shaped strip shape, and the curvature of thefirst light spot 110 on the more rear side is larger (fig. 7 shows a shape of thefirst light spot 110 on the rear side, and a contour is circled by a dotted line), thenotch 111 of each of thefirst light spots 110 faces the front end, and the previousfirst light spot 110 is accommodated in thenotch 111 of the nextfirst light spot 110 and overlapped, and thus overlapped.

Most of originally divergent light rays are gathered through theouter surface 21 of thesecond arch part 20 and are emitted to the front upper end, and a large-areasecond light spot 120 is formed, as shown by the outline circled by a dotted line in fig. 8. Thesecond light spot 120 is partially accommodated in thenotch 111 of thefirst light spot 110 and overlapped, and most of the scattered light can be gathered by thefirst arch part 10 and thesecond arch part 20, so that a large light spot with an obvious outline is obtained, as shown by the outline circled by a dotted line in fig. 9.

Because thesecond light spot 120 is obtained by gathering light rays through the convex surface of thesecond arch part 20, the rear end of thesecond light spot 120 is relatively rounded, and thefirst light spot 110 is convex towards the rear end, thefirst light spot 110 compensates the deficiency of thesecond light spot 120 at the rear end, so that the edge profile of the finally obtained large light spot at the rear end is relatively convex, and the convex part can illuminate the corner of the court.

Wherein, the edge profile shape of thesecond light spot 120 can be obtained by adjusting the profile shape of thesecond edge 22. In this embodiment, oneside edge 221 of thesecond arch part 20 protrudes outward from theother side 222, when thelens 100 is installed in a forward and backward direction (for example, when the side of therectangular panel 30 is approximately parallel to the side line of the playing field), after a part of light rays are gathered by the more protruding side, alight spot 121 formed by the part of light rays extends to the front end along the tilting direction (i.e., the side line direction of the playing field), thelight spot 121 is overlapped with thefirst light spot 110, so that the macro light spot (shown in fig. 9) can be approximately rectangular, the edge of thelight spot 121 forms the long side of the rectangular macro light spot, and the long edge of the rectangular macro light spot can be approximately flush with the side line of the playing field, thereby avoiding that the light rays cannot illuminate the side line of the playing field or the light rays are deflected to the seat.

Go intoperforation 40 and include first refractingsurface 42, first refractingsurface 42 is the free-form surface of indent, the middle part of the lower limb of first refractingsurface 42 is close to the front end, and its left and right sides is close to the rear end, first refractingsurface 42 is followed the lower limb extends to the upper back, because first refractingsurface 42 is the concave surface, most scattered light will be accepted to first refractingsurface 42 to can pass through in advance first refractingsurface 42 refracts and gathers together in advance to the front end direction, then passes through again secondemergent surface 21 refracts and gathers together, increases the refraction so that light gathers together to the front end more partially and improve light.

Thefirst refraction surface 42 extends upwards from the lower edge to the lower part of the firstarch part 10, so that thefirst refraction surface 42 comprises arefraction part 421 located right below the firstarch part 10, therefraction part 421 refracts part of scattered light to the firstarch part 10, and in addition, a light source is arranged in the cavity of the secondarch part 20, the light quantity of the light entering the firstarch part 10 is small, so that the height of the firstarch part 10 can be reduced, the height of the firstarch part 10 is basically equal to that of the secondarch part 20, the overall thickness of thelens 100 is reduced, the volume of thelens 100 is reduced, and the installation of thelens 100 is facilitated.

Theentry hole 40 further includes a second refraction surface 423, the second refraction surface 423 is a concave free-form curved surface, a middle portion of a lower edge of the second refraction surface 423 is near a rear end, the second refraction surface 423 extending upward from the lower edge and being connected to thefirst refraction surface 42 to form aconnection line 44, thelens 100 has a second reflectingsurface 51 located at the rear side of the second refracting surface 423, the second reflectingsurface 51 is a free-form surface for reflecting a part of the light to thefirst dome 10, since the second refraction surface 423 is a concave surface, the light scattered backward and backward will be collected by the second refraction surface 423, refracted and gathered, and then reflected to thefirst arching portion 10 through thesecond reflection surface 51, so that a small amount of light scattered to the rear and rear sides can also be diverted to exit to the front end.

In this embodiment, the bottom of thelens 100 is formed with agroove 50, and a surface of thegroove 50 adjacent to the incident hole constitutes the second reflectingsurface 51, so that the second reflectingsurface 51 is formed on theregular panel 30.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. The polarized lens capable of gathering light rays is characterized in that the lens comprises a front end, a rear end, a left side and a right side, a first arch part and a second arch part positioned at the front end of the first arch part are formed at the top of the lens, the outer surface of the first arch part comprises a first emergent surface and a first reflecting surface, the first emergent surface and the first reflecting surface are free curved surfaces, a first edge formed by connecting the first emergent surface and the first reflecting surface is high in the middle, the left side and the right side of the first edge are gradually close to the bottom, the first reflecting surface extends from the first edge to the lower side of the rear end, the outer surface of the second arch part is a free curved surface, a second edge of the outer surface of the second arch part is gradually close to the bottom, so that the outer surface of the second arch part is convex, and part of the outer surface of the second arch part is connected to the first emergent surface, and the bottom of the lens is provided with an incident hole, and the incident hole at least comprises a cavity body which is formed at the rear end of the second arch part and used for placing a light source.

2. A polarized lens capable of gathering light according to claim 1, wherein the entrance hole comprises a first refraction surface, the first refraction surface is an inward concave free-form surface, the middle of the lower edge of the first refraction surface is close to the front end, the left and right sides of the lower edge of the first refraction surface are close to the rear end, and the first refraction surface extends from the lower edge to the upper rear side.

3. A light concentrating polarized lens as claimed in claim 2, wherein the first refractive surface includes a refractive portion directly below the first raised portion.

4. A polarized lens capable of gathering light according to claim 2, wherein the entry hole further comprises a second refraction surface, the second refraction surface is a concave free-form surface, the middle of the lower edge of the second refraction surface is close to the rear end, the left and right sides of the second refraction surface are close to the front end, the second refraction surface extends upward from the lower edge and is connected to the first refraction surface, the lens has a second reflection surface located behind the second refraction surface, and the second reflection surface is a free-form surface for reflecting a portion of light to the first arch portion.

5. A polarized lens capable of gathering light rays as claimed in claim 4, wherein the lens comprises a regular panel, the first and second arched portions are formed on the regular panel, a groove is further formed at the bottom of the lens, and a surface of the groove close to the entrance hole forms the second reflecting surface.

6. A polarized lens capable of gathering light according to claim 1, comprising a plurality of the first arching portions, wherein the plurality of the first arching portions are sequentially arranged in front of and behind one another, and the first reflection surface of the first arching portion near the front end is connected with a part of the first exit surface of the first arching portion adjacent to and near the rear end.

7. A polarized lens capable of gathering light according to claim 1, wherein one side edge of the second arch portion is convex more to the outside than the other side.

8. A light-emitting unit, comprising a light source and a polarized lens capable of gathering light according to any one of claims 1 to 7, wherein the light source is disposed in the cavity.

9. A luminaire comprising at least one of the light-emitting units of claim 8.

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