CN210532297U - Lamp light-equalizing lens structure - Google Patents
Lamp light-equalizing lens structure Download PDFInfo
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- CN210532297U CN210532297U CN201921711421.XU CN201921711421U CN210532297U CN 210532297 U CN210532297 U CN 210532297U CN 201921711421 U CN201921711421 U CN 201921711421U CN 210532297 U CN210532297 U CN 210532297U
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Abstract
The utility model belongs to the technical field of lens structures of lighting lamps and lanterns, and discloses a lamp light-equalizing lens structure, which comprises a linear lens hood with a light outlet hole on the cross section, wherein a hollow cavity body provided with a light source, a linear lens and a light mixing piece is formed in the middle of the linear lens hood; the light mixing piece is arranged at the light outlet hole of the linear light shield, light rays emitted by the light source enter the linear lens from the back side, and are emitted from the front side of the linear lens through the light outlet hole through the light mixing piece value under the refraction and reflection actions of the linear lens; the front surface of the linear lens and the front and back surfaces of the light mixing sheet are both planes, and the lens is a light-equalizing lens structure which can distribute the light in the use area according to the illumination requirements through the special microstructure emergent surface under the action of the lens and the light mixing sheet.
Description
Technical Field
The invention belongs to the technical field of lens structures of lighting lamps, and particularly relates to a light-equalizing lens structure of a lamp.
Background
With the development of science and technology, people have higher and higher requirements on lamps, and the requirements on appearance and light distribution are increased. In appearance, in pursuit of aesthetic feeling, linear soft lighting is increasingly added to both home decoration design and business office design, and therefore, the requirement of consumers for linear lighting lamps is higher and higher. Meanwhile, the design feeling, the high-grade feeling and other terms of the lamp product bring requirements on lamp design, and the requirement on the uniformity of illumination at the use position of the lamp is higher, so that the current consumer appearance puts more comprehensive requirements on the lighting lamp.
In the prior art, in order to realize the uniform illumination effect, light emitted from light sources such as an LED is mainly directly illuminated to an area to be illuminated through the lens, and the width of a light emitting surface of a required structure is large; however, a part of light passes through the lens, the light emitting efficiency is extremely low, and the effective output energy is low for the same input lumen. In another scheme, a micro-structure lens is added at the position of a light outlet hole of a lamp, so that the emergent light can achieve a certain light-emitting effect, for example, the invention patent document with the publication number of CN100520273, the publication date of 2009, 7 and 29, and the name of "measuring tape with laser beam" discloses a measuring tape, which comprises a box body, a measuring blade capable of being curled in the box body, and a light plane generator arranged on the box body. The light plane generator may include a laser source for emitting a laser beam and a linear lens on a path of the laser beam for converting the laser beam into a laser plane.
However, in the existing technical scheme, when light is emitted through linear holes with the same width, the light emitting efficiency is very low, the corresponding requirements cannot be met, and the desired uniform illumination effect cannot be achieved in a use area after the light passes through the structural holes.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide one kind through the effect of lens and mixed light piece, and its lens can come to carry out the equal light lens structure of corresponding illuminance demand distribution to the light of service area through its special micro-structure emergent face.
The invention discloses a lamp light-equalizing lens structure, which is characterized in that: the linear light shield comprises a linear light shield with a light outlet hole in the cross section, wherein the linear light shield is used for shielding a light source scattered by the light source from overflowing from the light outlet hole under the condition of diffuse reflection to influence the light quality, and a hollow cavity for arranging the light source, a linear lens and a light mixing sheet is formed in the middle of the linear light shield; the light mixing sheet is arranged at the light outlet hole of the linear light shield, light emitted by the light source enters the linear lens from the back side, is emitted from the front side of the linear lens through the light outlet hole through the light mixing sheet value under the refraction and reflection actions of the linear lens, namely, the linear lighting lens group consisting of the linear lens and the micro-structure lens, and the linear uniform lighting effect can be realized after the light passes through the linear lighting lens group; preferably, the front of linear lens and the positive and negative two sides of mixing the light piece are the plane, and the plane plays better even light illuminating effect of linearity, and linear lens can effectual collection light energy through refraction and the reflection to the light source, improves emergent light efficiency.
Further, the linear light shield is a hollow cylinder, a strip-shaped opening parallel to the central axis of the cylinder is formed in the side wall of the linear light shield to form the light outlet, and correspondingly, the light source, the linear lens and the light mixing sheet are a strip-shaped light source, a linear lens and a light mixing sheet, the length of which corresponds to the length of the strip-shaped opening, so that the lighting structure suitable for the linear narrow light outlet structure is formed.
Preferably, the width of the light outlet hole is 2-5 mm, the distance between the light source and the light outlet hole is 5-20 mm, the linear lens is arranged between the light source and the light mixing sheet, and the distance between the light source, the linear lens and the light mixing sheet is adjustable; when the light source is 5-20 mm away from the hole, most of light emitted by the light source can be shielded by the linear light shield, the light-emitting efficiency is extremely low and is about 5% -10%, and when the linear lens is added, the linear lens increases the light emergence rate to 20% -40% according to a specific cross light-emitting mode through refraction and reflection.
The linear light shield is provided with a light source, the light source is a strip-shaped LED lamp which is substantially arranged in the linear light shield and can emit light in a single direction, and the light emitting surface of the strip-shaped LED lamp faces to the side wall of the linear light shield.
Furthermore, the linear lens is a strip lens with a trapezoidal cross section, the front surface of the linear lens is a plane, the back surface of the linear lens is provided with an inward rectangular or trapezoidal groove, the light source is arranged at a position corresponding to the groove on the back surface of the linear lens, and light rays emitted by the light source enter the linear lens from the groove on the back surface of the linear lens to realize first refraction and then are emitted from the front surface of the linear lens through reflection of the side wall of the linear lens to realize second refraction.
Preferably, the light mixing sheet is a rectangular tile-type microstructure light mixing sheet, when light reaches a focus position, due to an imaging effect, severe color separation can be formed at the focus position, a color separation phenomenon of an LED lamp bead serving as a light source is presented, at the moment, the microstructure light mixing sheet is added at the position of the light outlet, and secondary processing is performed on the light at the focus position. The microstructure light mixing sheet can adopt various forms to meet corresponding requirements, such as a rectangular tile type, and aims to form a rectangular light spot on a use surface.
The utility model discloses a light-equalizing lens structure of lamps and lanterns increases the light-emitting efficiency of lens through the grading mode of focus, in the within range of injecing, redistributes the light that LED sent, realizes the focus of light path, places the focus position in the position of linear light-emitting mouth to increase the light-emitting efficiency of whole lens, thereby improve the utilization ratio of LED energy; the illumination distribution condition on the use surface is controlled through the microstructure light mixing piece at the light outlet, and the illumination uniformity at the use surface is increased; the adopted microstructure light mixing sheet can adopt the rectangular structure shown above, and can also adopt other forms of structures, such as a spherical surface type and the like, the arrangement mode can also be a rectangular arrangement mode, a hexagonal arrangement mode, a dot matrix arrangement mode and the like, and the adopted microstructure light mixing sheet at the linear position of the outer light outlet distributes the light which is dispersed after being focused again, so that the required illumination distribution is formed on the use surface, and the characteristic of enabling the illumination distribution of the whole use surface to be uniform is met.
Drawings
The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional structure of a preferred embodiment of the present invention;
FIG. 3 is a schematic view of the linear lens of the present invention for improving the efficiency of emergent light;
FIG. 4 is a schematic view of a preferred embodiment of the light mixing sheet of the present invention;
in the figure:
1. mixing a light sheet; 2. a linear lens; 3. a linear light shield; 4. a light source; 5. and a light outlet.
Detailed Description
The technical solutions for achieving the objects of the present invention are further illustrated by the following specific examples, and it should be noted that the technical solutions claimed in the present invention include, but are not limited to, the following examples.
Example 1
As a most basic embodiment of the present invention, as shown in fig. 1, a lamp light-equalizing lens structure is disclosed, which includes a linear light-shielding cover 3 having a light-emitting hole 5 on a cross section, wherein the linear light-shielding cover 3 is used for shielding a light source 4 scattered by the light source 4 from overflowing from the light-emitting hole 5 under the condition of diffuse reflection to affect the light-emitting quality, and a hollow cavity for arranging the light source 4, the linear lens 2 and the light-mixing sheet 1 is formed in the middle of the linear light-shielding cover 3; the light mixing sheet 1 is arranged at a light outlet 5 of the linear light shield 3, light emitted by the light source 4 enters the linear lens 2 from the back, is emitted from the front of the linear lens 2 through the light mixing sheet 1 and the light outlet 5 under the refraction and reflection actions of the linear lens 2, namely, the linear illumination lens group consisting of the linear lens 2 and the micro-structure lens, and the linear uniform illumination effect can be realized after the light passes through the linear illumination lens group; preferably, the front of linear lens 2 and the positive and negative two sides of mixing light piece 1 are the plane, and the plane plays better linear even light illuminating effect, and linear lens 2 can effectual collection light energy through refraction and the reflection to light source 4, improves emergent light efficiency.
Example 2
As an optimized embodiment of the utility model, on the basis of the technical scheme of above-mentioned embodiment 1, it is further, linear lens hood 3 is the cavity cylinder type, has seted up on linear lens hood 3's the lateral wall with the parallel bar trompil of cylinder axis constitutes light-emitting hole 5, it is corresponding, light source 4, linear lens 2 and mixed light piece 1 correspond for length dimension the bar light source 4, linear lens 2 and mixed light piece 1 of bar trompil length constitute a lighting structure who is applicable to the narrow light-emitting outlet structure of linearity promptly.
Preferably, as shown in fig. 2, the width of the light exit hole 5 is 2-5 mm, the distance from the light source 4 to the light exit hole 5 is 5-20 mm, and the linear lens 2 is disposed between the light source 4 and the light mixing sheet 1; when the light source 4 is 5-20 mm away from the hole, most of light emitted by the light source 4 can be shielded by the linear light shield 3, the light emitting efficiency is extremely low and is about 5% -10%, and when the linear lens 2 is added, as shown in fig. 3, the linear lens 2 increases the light emitting rate to 20% -40% according to a specific cross light emitting mode through refraction and reflection; the distance between the light source 4, the linear lens 2 and the light mixing sheet 1 is adjustable, that is, the light focal length can be adjusted, the focal length f is set to be the distance d from the LED to the light outlet 5, that is, f = d, and the most light is ensured to pass through the focal position, that is, the position of the light outlet 5. Since focusing is achieved in a short distance, where the LED light source 4 is large and cannot be considered as a point light source 4, f > d here.
The light source 4 is a bar-shaped LED lamp which substantially emits light in one direction in the linear light shield 3, and a light emitting surface of the bar-shaped LED lamp faces to the bar-shaped opening which is formed on the side wall of the linear light shield 3 and constitutes the light outlet 5.
Further, linear lens 2 is the strip lens that the cross section is trapezoidal, and linear lens 2's front is the plane, and the back is provided with inward rectangle or trapezoidal recess, light source 4 sets up in linear lens 2 back and corresponds the position of recess, the light that light source 4 sent gets into linear lens 2 from the recess at linear lens 2 back and realizes refraction for the first time then jets out from linear lens 2's front through the reflection of linear lens 2 lateral wall and realizes refraction for the second time.
Preferably, the light mixing sheet 1 is a rectangular tile-type microstructure light mixing sheet 1, when light reaches a focus position, due to an imaging effect, severe color separation can be formed at the focus position, a color separation phenomenon of an LED lamp bead serving as a light source 4 is shown, at the moment, the microstructure light mixing sheet 1 is added at a position of the light outlet 5, and secondary processing is performed on the light at the focus. The microstructure light mixing sheet 1 can adopt various forms to meet corresponding requirements, such as a rectangular tile type, and aims to form a rectangular light spot on a use surface.
The specific shape is shown in fig. 4, the length-width ratio of the rectangle is 2:1, different surface coefficients are adopted in the x and y directions, and k = - (e) is obtained according to the surface formula2) The surface shape is determined, the curved surface shape corresponding to the k value is a regular sphere if k =0, and is an ellipsoid if k = 0.
Claims (6)
1. A lamp light-equalizing lens structure is characterized in that: the light source device comprises a linear light shield (3) with a light outlet hole (5) in the cross section, wherein a hollow cavity body provided with a light source (4), a linear lens (2) and a light mixing sheet (1) is formed in the middle of the linear light shield (3); the light mixing piece (1) is arranged at a light outlet (5) of the linear light shield (3), light rays emitted by the light source (4) enter the linear lens (2) from the back side, and are emitted from the front side of the linear lens (2) through the light outlet (5) under the refraction and reflection action of the linear lens (2) through the light mixing piece (1); the front surface of the linear lens (2) and the front and back surfaces of the light mixing sheet (1) are both planes.
2. The lamp uniform light lens structure of claim 1, wherein: linear lens hood (3) are the cavity cylinder type, offer on the lateral wall of linear lens hood (3) with the parallel bar trompil of cylinder axis constitute light-emitting hole (5), it is corresponding, light source (4), linear lens (2) and mixed light piece (1) correspond for length size bar light source (4), linear lens (2) and mixed light piece (1) of bar trompil length.
3. A lamp light equalizing lens structure as defined in claim 1 or 2, wherein: the width of the light emitting hole (5) is 2-5 mm, the distance between the light source (4) and the light emitting hole (5) is 5-20 mm, the linear lens (2) is arranged between the light source (4) and the light mixing sheet (1), and the distances among the light source (4), the linear lens (2) and the light mixing sheet (1) are adjustable.
4. The lamp uniform light lens structure of claim 2, wherein: the light source (4) is a bar-shaped LED lamp which substantially emits light in a single direction in the linear light shield (3), and the light emitting surface of the bar-shaped LED lamp faces towards.
5. The lamp uniform light lens structure of claim 1 or 4, wherein: linear lens (2) are trapezoidal strip lens for the cross section, and the front of linear lens (2) is the plane, and the back is provided with inward rectangle or trapezoidal recess, light source (4) set up at linear lens (2) back correspondence the position of recess, the light that light source (4) sent gets into linear lens (2) from the recess at linear lens (2) back and realizes refraction for the first time then through the reflection of linear lens (2) lateral wall from the front of linear lens (2) and jet out again and realize refraction for the second time.
6. The lamp lens structure of claim 1, 2 or 4, wherein: the light mixing sheet (1) is a rectangular tile type microstructure light mixing sheet (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921711421.XU CN210532297U (en) | 2019-10-14 | 2019-10-14 | Lamp light-equalizing lens structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921711421.XU CN210532297U (en) | 2019-10-14 | 2019-10-14 | Lamp light-equalizing lens structure |
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| Publication Number | Publication Date |
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| CN210532297U true CN210532297U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921711421.XU Active CN210532297U (en) | 2019-10-14 | 2019-10-14 | Lamp light-equalizing lens structure |
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