CN212644485U

CN212644485U - Deflection lens

Info

Publication number: CN212644485U
Application number: CN202021096517.2U
Authority: CN
Inventors: 陈伟川
Original assignee: Zhangzhou Leedarson Lighting Co Ltd
Current assignee: Zhangzhou Leedarson Lighting Co Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-03-02
Anticipated expiration: 2030-06-15

Abstract

The deflection lens comprises a deflection lens body, wherein the deflection lens body comprises a first mirror surface and a second mirror surface which are oppositely arranged, the first mirror surface is provided with a light inlet groove, and the second mirror surface is provided with a cambered mirror part and a refraction mirror part; the dioptric mirror part is connected with the cambered mirror part, and the cambered mirror part and the dioptric mirror part are obliquely arranged opposite to the light inlet groove from two opposite sides respectively; the dioptric mirror portion comprises a top surface and a first side surface, wherein the top surface is opposite to the first mirror surface, the first side surface is connected to the periphery of one side, far away from the cambered mirror portion, of the top surface, and the first side surface is obliquely arranged and extends towards the direction far away from the cambered mirror portion. The first side slope sets up, has reduced from going into the light groove and has got into the light of following the outgoing of first side behind the deflection lens, and no matter light is from the surface outgoing of keeping away from first mirror surface of cambered surface mirror portion, still from the top surface outgoing, can both jet out to same one side of deflection lens, and the light on the opposite direction of deflection is by effectual, and the light utilization ratio is high.

Description

Deflection lens

Technical Field

The application relates to the technical field of lighting and illumination, in particular to a deflection lens.

Background

With the continuous maturation and development of lighting technology, various light sources are widely applied in the fields of lighting, industry and the like. The original distribution of the light spots of the conventional light source generally conforms to the simulation of a lambertian light source, and in the using process of the conventional light source, a light distribution lens needs to be arranged in the direction of light projected by the light source according to a specific use scene, for example, the light source is arranged at the corner of an indoor space or under the circumstance of a roadside, so that the secondary light distribution design is carried out on the light source. The lens belongs to a precise optical component, and the structure of the lens influences the light distribution effect.

Traditional deflection lens still has a considerable portion not deflected because of the defect of optical structure itself, and when lamps and lanterns leaned on the wall installation, light was too much shone on the wall, and the opposite direction light of direction of deflecting ends the effect poor, and light utilization rate is low.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a deflection lens, it is poor to aim at solving the reverse light of traditional deflection lens and ends the effect, and light utilization rate hangs down technical problem.

The deflection lens comprises a deflection lens body, wherein the deflection lens body comprises a first mirror surface and a second mirror surface which are oppositely arranged, the first mirror surface is provided with a light inlet groove, and the second mirror surface is provided with a cambered mirror part and a refraction mirror part; the dioptric mirror part is connected with the cambered mirror part, and the cambered mirror part and the dioptric mirror part are obliquely arranged on the light incident groove from two opposite sides respectively; the dioptric mirror portion include with the relative top surface that sets up of first mirror surface, and connect in keeping away from of top surface the peripheral first side of one side of cambered surface mirror portion, first side slope sets up and to keeping away from the direction of cambered surface mirror portion extends.

In an embodiment of this application, the second mirror surface still is provided with sawtooth mirror portion, sawtooth mirror portion with first side sets up relatively, just what sawtooth mirror portion included is just right the income light plane of first side, and back to the sawtooth surface of first side, sawtooth surface is provided with the book face sunk structure that a plurality of arrays were arranged, each book face sunk structure is along keeping away from the direction of first mirror surface extends.

In one embodiment of the present application, one end of the saw tooth mirror portion far away from the first mirror surface, and both ends of the extending direction of the saw tooth mirror portion are connected with the dioptric mirror portion.

In an embodiment of the present application, the dioptric mirror portion further includes a second side surface and a third side surface connected to a periphery of the top surface and disposed opposite to the first side surface, an included angle between the second side surface and the third side surface is a reflex angle, and the curved mirror portion is connected to the second side surface and the third side surface; the deflection lens further comprises a fourth side surface and a fifth side surface which are connected with the periphery of the top surface, the fourth side surface is arranged between the second side surface and the sawtooth surface, and the fifth side surface is arranged between the third side surface and the sawtooth surface.

In an embodiment of the present application, the first mirror surface is a plane, the top surface is inclined to the first mirror surface, and a distance between one end of the top surface close to the saw-tooth mirror portion and the first mirror surface is smaller than a distance between one end of the top surface far away from the saw-tooth mirror portion and the first mirror surface.

In one embodiment of the present application, the first mirror surface is provided with total reflection teeth arranged in an array, and the total reflection teeth are configured to reflect light emitted to the first mirror surface by using a total reflection principle.

In an embodiment of this application, go into the light groove along the while perpendicular to the top surface with the cross-section of the direction of first side is half water droplet shape, go into being close to of light groove the radius of curvature of one side of first side is less than go into keeping away from of light groove the radius of curvature of one side of first side.

In one embodiment of the present application, the deflection lens further includes a boss connected to the deflection lens body, the boss being disposed around a periphery of the first mirror surface.

In one embodiment of the present application, the boss is a circular disk-shaped boss.

In an embodiment of the present application, a surface of the boss that is the same side as the first mirror surface is flush with the first mirror surface, and a surface of the boss that is the same side as the first mirror surface is provided with total reflection teeth.

The implementation of the deflection lens provided by any embodiment of the present application has at least the following beneficial effects:

the light entering groove is arranged on the first surface, the cambered mirror part and the refraction mirror part are respectively arranged on the second mirror surface and obliquely opposite to the light entering groove, and the refraction mirror part is provided with the top surface for light emitting and the first side surface for totally reflecting light rays, so that the light rays entering from the light entering groove can be emitted to the same side of the deflection lens no matter the light rays are emitted from the surface of the cambered mirror part far away from the first mirror surface or the light rays are emitted from the top surface, the light ray cut-off effect in the direction opposite to the deflection direction is good, and the light ray utilization rate is high; the first side face and the first mirror face are arranged in an inclined mode relatively, the first side face extends towards the direction far away from the cambered mirror portion, light rays emitted from the first side face after entering the deflection lens from the light inlet groove are reduced, more light rays can be totally reflected on the first side face and emitted from the top face or the surface, far away from the first mirror face, of the cambered mirror portion to irradiate into the space on one side, corresponding to the cambered mirror portion, the light spot cut-off effect is further optimized, and the light energy utilization rate is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a deflection lens provided by an embodiment of the present application;

FIG. 2 is a schematic view of the deflection lens of FIG. 1 viewed from another angle;

FIG. 3 is a schematic view of the deflection lens of FIG. 1 viewed from a further angle;

FIG. 4 is a schematic top view of a deflection lens provided by an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view taken along the direction D-D in FIG. 4;

FIG. 6 is a schematic view of a principle and angle of a deflection lens provided by an embodiment of the present application;

FIG. 7 is a schematic diagram illustrating a relationship between a light distribution angle and an intensity of a deflection lens according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating a light distribution position-intensity relationship of a deflection lens according to an embodiment of the present application.

Reference numerals referred to in the above figures are detailed below:

1-a deflection lens body; 11-a first mirror surface; 111-light-entering groove; 112-deflection slots; 12-a second mirror; 121-a cambered mirror part; 122-a dioptric mirror portion; 1221-a first side; 1222-a second side; 1223-third side; 1224-fourth side; 1225-fifth side; 1226-top surface; 123-a sawtooth mirror part; 1231-incident light plane; 1232-serrated face; 2-boss; 21-total reflection teeth.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.

In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.

Referring to fig. 1 to 3, an embodiment of the present application provides a deflection lens, including a deflection lens body 1, where the deflection lens body 1 includes a first mirror surface 11 and a second mirror surface 12 that are oppositely disposed, the first mirror surface 11 is provided with a light incident groove 111, and the second mirror surface 12 is provided with a curved mirror portion 121 and a dioptric mirror portion 122; the dioptric mirror part 122 is connected with the cambered mirror part 121, and the cambered mirror part 121 and the dioptric mirror part 122 are obliquely arranged opposite to the light slot 111 from two opposite sides respectively; the dioptric mirror portion 122 includes a top surface 1226 disposed opposite to the first mirror surface 11, and a first side surface 1221 connected to a periphery of the top surface 1226 on a side away from the mirror-arc portion 121, the first side surface 1221 being disposed obliquely and extending in a direction away from the mirror-arc portion 121. Specifically, the light incident groove 111 is disposed opposite to the light source, and is used for allowing the light emitted from the light source to be incident, and pre-refracts the light to the side of the cambered mirror portion 121, that is, the left side.

Specifically, the deflection lens provided in the present embodiment operates as follows:

referring to fig. 5 and 6, the light emitted from the light source disposed opposite to the light incident groove 111 first irradiates the inner wall of the light incident groove 111, is refracted at the inner wall surface of the light incident groove 111, and is refracted to the side where the curved mirror portion 121 is located, i.e., the left side. Wherein, part of the light is refracted and then irradiated to the cambered mirror part 121, and is refracted again on the surface of the cambered mirror part 121 far away from the first mirror surface 11, and finally is deflected to one side of the cambered mirror part 121, namely, the left space to realize illumination; another part of the light rays inevitably irradiates to the side of the light-entering groove 111, which is opposite to the refractor part 122, namely the right side, and after the part of the light rays are refracted by the inner wall of the light-entering groove 111, one part of the light rays directly irradiates to the top surface 1226, and is refracted at the top surface 1226 and irradiates to the space on the left side; the last part of the light is totally reflected at the first side surface 1221, and finally exits from the top surface 1226 or the surface of the cambered mirror portion 121 far away from the first mirror surface 11 to irradiate into the space on the left side.

The implementation of the deflection lens provided by the embodiment can at least achieve the following beneficial technical effects;

referring to fig. 7 and 8, by disposing the light-inserting groove 111 on the first surface, disposing the cambered mirror portion 121 and the dioptric mirror portion 122 on the second mirror surface 12 and obliquely facing the light-entering groove 111, respectively, and disposing the dioptric mirror portion 122 with the top surface 1226 for light-exiting and the first side surface 1221 for totally reflecting light, in this way, light incident from the light-entering groove 111 can be emitted to the same side of the deflection lens no matter emitted from the surface of the cambered mirror portion 121 away from the first mirror surface 11 or emitted from the top surface 1226, and the light cut-off effect in the direction opposite to the deflection direction is good, and the light utilization ratio is high; first side 1221 sets up with first mirror surface 11 slope relatively, and first side 1221 extends to the direction of keeping away from cambered mirror portion 121, the light of following first side 1221 outgoing after having reduced and getting into the deflection lens from light trough 111, make more light can take place the total reflection and follow the surface outgoing of keeping away from first mirror surface 11 of top surface 1226 or cambered mirror portion 121 at first side 1221, shine in the space of the one side that cambered mirror portion 121 corresponds, the effect of ending of facula has further been optimized, the utilization ratio of light energy has been improved.

Referring to fig. 1 to 5, in an embodiment of the present application, the second mirror surface 12 is further provided with a sawtooth mirror portion 123, the sawtooth mirror portion 123 is disposed opposite to the first side surface 1221, and the sawtooth mirror portion 123 includes a light incident plane 1231 facing the first side surface 1221 and a sawtooth plane 1232 facing away from the first side surface 1221, the sawtooth plane 1232 is provided with a plurality of folded surface recessed structures arranged in an array, and each folded surface recessed structure extends along a direction away from the first mirror surface 11.

The sawtooth mirror portion 123 is disposed at a position of the second mirror surface 12 opposite to the first side surface 1221, and the sawtooth mirror portion 123 is opposite to the light incident plane 1231 of the first side surface 1221 and is configured to receive the light, which is not totally reflected at the first side surface 1221 and still refracted from the first side surface 1221 and irradiated to a space on a side corresponding to the prism portion 122, that is, the light emitted from the first side surface 1221 and irradiated to the right side. The light received by the light incident plane 1231 is refracted by the light incident plane 1231 and irradiates the serrated surface 1232 of the serrated mirror portion 123 back to the first side surface 1221, and the serrated surface 1232 is provided with a fold surface concave structure arranged in an array and extending in a direction away from the first mirror surface 11. Due to the existence of the folding surface concave structure, the incident angle of the part of light on the sawtooth surface 1232 is very large, and the structure of the folding surface concave structure can make the part of light return after being totally reflected twice, that is, the folding surface concave structure plays a role similar to a plane mirror; finally, the part of light can be emitted from the top surface 1226, so that the utilization rate of the light emitted by the light source is further improved, the light distribution intensity in the left space is improved, and the cut-off effect of the light spots is optimized.

Referring to fig. 1 to 5, in an embodiment of the present application, one end of the saw-tooth mirror portion 123 away from the first mirror surface 11 and two ends of the saw-tooth mirror portion 123 in the extending direction are connected to the dioptric mirror portion 122. That is, the first side surface 1221 or the light incident surface 1231 cannot be directly seen from one side of the second mirror surface 12 of the deflection lens body 1, a deflection groove 112 is formed between the first side surface 1221 and the light incident surface 1231, the light refracted from the first side surface 1221 and leaving the prism portion 122 enters the sawtooth mirror portion 123 from the light incident surface 1231 after passing through the deflection groove 112, and further, the light is totally reflected twice on the sawtooth surface 1232 and exits from the top surface 1226.

Due to the arrangement, the flatness of the deflection lens body 1 on one side of the second mirror surface 12 can be improved, and when the deflection lens is used in a state that the second mirror surface 12 faces upwards, such as when the deflection lens is used for a floor lamp for providing illumination for an outer wall of a building at night, rainwater or impurities can be prevented from falling into the deflection groove 112 or contacting with the first side surface 1221 and the incident light plane 1231 to influence the effect of deflection transparent deflection light illumination; meanwhile, the structural strength can be improved, and the sawtooth mirror part 123 with a small thickness is prevented from being damaged due to impact or collision in the storage and transportation processes.

Referring to fig. 1 to 5, in an embodiment of the present application, the dioptric mirror portion 122 further includes a second side 1222 and a third side 1223 opposite to the first side 1221 and connecting the periphery of the top surface 1226, an included angle between the second side 1222 and the third side 1223 is a reflex angle, and the curved mirror portion 121 connects the second side 1222 and the third side 1223; the deflection lens further includes a fourth side 1224 and a fifth side 1225 connecting the peripheral edges of the top surface 1226, the fourth side 1224 being disposed between the second side 1222 and the serrated surface 1232, the fifth side 1225 being disposed between the third side 1223 and the serrated surface 1232.

Referring to fig. 1 to 5, an included angle between the second side 1222 and the third side 1223 is a reflex angle, which can increase an area of the top surface 1226, and the second side 1222, the third side 1223, the fourth side 1224, and the fifth side 1225 can reflect or totally reflect light rays with specific angles, so that the light rays with specific angles can be emitted from the top surface 1226 with more light rays, thereby improving light utilization rate and making a cut-off line of a light spot projected by the deflection lens more obvious.

Referring to fig. 7 and 8, it can be seen from fig. 7 that, compared with the original light distribution curve of the light source, the light spot is obviously shifted to one side when the deflection lens is provided, an obvious triangular light spot can be formed in the direction, the intervals between the equal illumination lines are uniform, the light ray cut-off line in the opposite direction is very obvious, and the illumination efficiency is greatly improved. In addition, as can be seen from fig. 8, the triangular light spots formed by the deflection lens provided by the embodiment are very suitable for special lighting requirements such as corner light supplement, the combination of the plurality of triangular light spots can form a dense paving in use scenes such as corridor, passageway, road surface and building outer wall light supplement, and the like, so that the light spots with very uniform illumination can be provided in the use scenes, and the application range is very wide.

Referring to fig. 1 to 5, in an embodiment of the present application, the first mirror surface 11 is a plane, the top surface 1226 is inclined to the first mirror surface 11, and a distance between an end of the top surface 1226 close to the sawtooth mirror portion 123 and the first mirror surface 11 is smaller than a distance between an end of the top surface 1226 far from the sawtooth mirror portion 123 and the first mirror surface 11. Like this, the light that comes from first side 1221 or sawtooth surface 1232 total reflection can be incited the top surface 1226 with littleer incident angle to reduced the light intensity of light when going out to the air from top surface 1226, avoided light to shine again to first side 1221 through top surface 1226 reflection, thereby improved the utilization ratio of the light that the light source sent.

Referring to fig. 6, as a specific solution of this embodiment, the first mirror surface 11, the first side surface 1221, and the top surface 1226 are all planar surfaces or surfaces with a slight radian, the serrated surface 1232 is macroscopically the same planar surface or surfaces with a slight radian, an included angle a between the first side surface 1221 and the first mirror surface 11 is between 70 ° and 80 °, an included angle B between the serrated surface 1232 and the first mirror surface 11 is between 75 ° and 85 °, an included angle C between the top surface 1226 and the first mirror surface 11 is between 0 ° and 25 °, and the concave structure of the corrugated surface on the serrated surface 1232 is formed by a plurality of continuously arranged corrugated surfaces with included angles in a range of 80 ° to 100 °.

Referring to fig. 5, in an embodiment of the present application, a cross section of the light incident groove 111 along a direction perpendicular to both the top surface 1226 and the first side surface 1221 is a half-drop shape, and a radius of curvature of a side of the light incident groove 111 close to the first side surface 1221 is smaller than a radius of curvature of a side of the light incident groove 111 far from the first side surface 1221. Therefore, when light emitted by the light source enters the deflection lens from the inner side of the light inlet groove 111, deflection can occur firstly, and the light irradiates the opposite side, namely the left side, of the cambered mirror part 121, more light can irradiate the surface of the cambered mirror part 121, so that the deflection efficiency of the deflection lens on the light emitted by the light source is improved.

Referring to fig. 1 to 5, in an embodiment of the present application, the deflection lens further includes a boss 2 connected to the deflection lens body 1, and the boss 2 is disposed around a periphery of the first mirror 11. Boss 2 is used for cooperating with other joint structures, installs the position such as shell or base with the deflection lens to the position and the angle relation of fixed deflection lens and light source.

Referring to fig. 1 to 5, as a specific solution of the present embodiment, the boss 2 is a circular disk-shaped boss 2. Like this, only need further design and 2 complex joint structures of circular disk boss, can make the deflection lens when the installation targets in place, can be through rotatory deflection lens, control lamps and lanterns carry out the light filling illumination to arbitrary direction deflection light, and very convenient flexibility.

Referring to fig. 3 and 5, in an embodiment of the present application, the first mirror 11 is also provided with total reflection teeth 21 arranged in an array; one surface of the boss 2 on the same side as the first mirror surface 11 is flush with the first mirror surface 11, and the surface of the boss 2 on the same side as the first mirror surface 11 is provided with total reflection teeth 21 arranged in an array manner. The total reflection teeth 21 reflect the light emitted to the first mirror 11 by using the total reflection principle, and can scatter or reflect part of the light emitted to the first mirror 11 at a large angle. When light is emergent from the second mirror surface 12 of the deflection lens, along with the refraction of the light, part of the light is necessarily reflected, the total reflection teeth 21 are arranged on the surfaces of the first mirror surface 11 and the boss 2 on the same side with the first lens, the part of the light can be reused, the function of shielding the structure on the right side of the first mirror surface 11 of the deflection lens can be played, the phenomenon that wiring inside a lamp, a circuit board and the like are observed by human eyes from the right side of the second mirror surface 12 of the deflection lens is avoided, and the visual effect of the deflection lens is optimized.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A deflection lens is characterized by comprising a deflection lens body, wherein the deflection lens body comprises a first mirror surface and a second mirror surface which are oppositely arranged, the first mirror surface is provided with a light inlet groove, and the second mirror surface is provided with a cambered mirror part and a refraction mirror part; the dioptric mirror part is connected with the cambered mirror part, and the cambered mirror part and the dioptric mirror part are obliquely arranged on the light incident groove from two opposite sides respectively; the dioptric mirror portion include with the relative top surface that sets up of first mirror surface, and connect in keeping away from of top surface the peripheral first side of one side of cambered surface mirror portion, first side slope sets up and to keeping away from the direction of cambered surface mirror portion extends.

2. The polarization lens of claim 1, wherein the second mirror surface further comprises a sawtooth mirror portion disposed opposite to the first side surface, the sawtooth mirror portion comprises a light incident plane facing the first side surface and a sawtooth plane facing away from the first side surface, the sawtooth plane is provided with a plurality of folding surface concave structures arranged in an array, and each folding surface concave structure extends in a direction away from the first mirror surface.

3. The deflection lens of claim 2, wherein the end of the sawtooth mirror portion remote from the first mirror surface and the ends of the sawtooth mirror portion extending in the direction are connected to the dioptric mirror portion.

4. The deflection lens of claim 3, wherein the refractor portion further includes a second side surface and a third side surface connected to a periphery of the top surface and disposed opposite to the first side surface, an included angle between the second side surface and the third side surface is a reflex angle, and the curved mirror portion connects the second side surface and the third side surface; the deflection lens further comprises a fourth side surface and a fifth side surface which are connected with the periphery of the top surface, the fourth side surface is arranged between the second side surface and the sawtooth surface, and the fifth side surface is arranged between the third side surface and the sawtooth surface.

5. The deflection lens of claim 2, wherein the first mirror surface is planar, the top surface is disposed obliquely to the first mirror surface, and a distance between an end of the top surface near the sawtooth mirror portion and the first mirror surface is smaller than a distance between an end of the top surface far from the sawtooth mirror portion and the first mirror surface.

6. The deflection lens of claim 5, wherein the first mirror is provided with total reflection teeth arranged in an array for reflecting light directed to the first mirror by using the principle of total reflection.

7. A deflection lens according to any one of claims 1-6, wherein the light-entering groove has a semi-drop shape in cross section in a direction perpendicular to both the top surface and the first side surface, and a radius of curvature of a side of the light-entering groove closer to the first side surface is smaller than a radius of curvature of a side of the light-entering groove farther from the first side surface.

8. The deflection lens of any one of claims 1-6, further comprising a boss connected to the deflection lens body, the boss disposed around a periphery of the first mirror surface.

9. The deflection lens of claim 8, wherein the boss is a circular disk-shaped boss.

10. The deflection lens of claim 8, wherein a surface of the boss on the same side as the first mirror surface is flush with the first mirror surface, and a surface of the boss on the same side as the first mirror surface is provided with total reflection teeth.