CN208670913U - Flashlight lens and lighting device - Google Patents
Flashlight lens and lighting device Download PDFInfo
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- CN208670913U CN208670913U CN201821169522.4U CN201821169522U CN208670913U CN 208670913 U CN208670913 U CN 208670913U CN 201821169522 U CN201821169522 U CN 201821169522U CN 208670913 U CN208670913 U CN 208670913U
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- light
- light source
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- optical cavity
- flashlight
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Abstract
The utility model discloses a kind of flashlight lens and lighting device, the flashlight lens include lens body, and the lens body includes: bottom surface, top surface and side；Bottom surface, the bottom surface are equipped with into optical cavity, it is described enter optical cavity surface be refraction incidence surface；The top surface is refraction light-emitting surface；The side is between the bottom surface and top surface, the side is reflective surface, the side is used to entering the incidence surface into the reflection of the light in the lens body, and the light and the light-emitting surface after making total reflection are projected at plumbness, and from the light-emitting surface.The flashlight lens realize limit central light strength, and spot area does not have aperture, and hot spot is uniform, while improving light source conversion ratio to greatest extent, reduce light efficiency loss, the light source setting structure is simple, and production cost is low.
Description
Technical field
The utility model relates to optical lens technical field more particularly to a kind of flashlight lens and lighting device.
Background technique
Most of in flashlight is all to use large-power light-emitting diodes as light source, and large-power light-emitting diodes are a kind of
The point light source of directional lighting needs to realize limit central light strength using optical lens, while improving light source conversion to greatest extent
Rate reduces light efficiency loss.
In the prior art, it is most of be all using reflector the distribution of light is realized to light reflector, and use reflection
Covering on illumination region will appear secondary aperture, bad to people's visual effect.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of flashlight lens with a novel purpose.
On the one hand, to achieve the above object, the utility model embodiment provides a kind of flashlight lens, and the flashlight is saturating
Mirror includes: bottom surface, and the bottom surface is equipped with into optical cavity, it is described enter optical cavity surface be refraction incidence surface；
Top surface, the top surface are refraction light-emitting surface；
Side, between the bottom surface and top surface, the side is reflective surface for the side, and the side is used for institute
The light reflection that incidence surface enters in the lens body is stated, the light and the light-emitting surface after making total reflection are at vertical configuration
State, and projected from the light-emitting surface.
One embodiment according to the present utility model, the top surface are a flat surface.
One embodiment according to the present utility model, it is described enter optical cavity be " people " glyph shape revolving body.
One embodiment according to the present utility model, it is described enter optical cavity revolving body bus be a slope from the bottom surface to
The camber line that top surface direction is gradually increased.
One embodiment according to the present utility model, the lens body use polycarbonate pc or the poly- first of optical grade
Base methyl acrylate is molded.
The flashlight lens that the example of the utility model provides, the light that light source issues is introduced by the bottom surface described in
In lens body, and the incidence surface is entered by the total reflection of the light in the lens body by the side, makes to be all-trans
Light and the light-emitting surface after penetrating is projected at plumbness, and from the light-emitting surface.To realize limit central light strength, hot spot
Region does not have aperture, and hot spot is uniform, while improving light source conversion ratio to greatest extent, reduces light efficiency loss.
On the other hand, the utility model also provides a kind of lighting device, comprising:
Above-mentioned flashlight lens；
Light source, the light source setting is in plane where the bottom surface, and light source center point enters optical cavity described in and returns
The position of the axis of swivel；
Heat-conducting substrate, the light source are mounted on the heat-conducting substrate；
Heat conducting base, the heat-conducting substrate are mounted in the heat conducting base.
One embodiment according to the present utility model, the light source be single light source, the single light source be point light source or
Person's circle area source.
The light source setting that the example of the utility model provides, is issued light source by the bottom surface on above-mentioned flashlight lens
Light is introduced into the lens body, and the incidence surface is entered to the light in the lens body by the side
Total reflection, the light and the light-emitting surface after making total reflection are projected at plumbness, and from the light-emitting surface.To realize the limit
Central light strength, spot area do not have aperture, and hot spot is uniform, while improving light source conversion ratio to greatest extent, reduce light efficiency loss, institute
State that light source setting structure is simple, and production cost is low.
Detailed description of the invention
Fig. 1 is flashlight lens perspective structure schematic diagram provided by the embodiment of the utility model；
Fig. 2 is flashlight lens profile structural schematic diagram provided by the embodiment of the utility model；
Fig. 3 is flashlight lens provided by the embodiment of the utility model from bottom surface present invention looks up structural representation；
Fig. 4 is another the schematic diagram of the section structure of flashlight lens provided by the embodiment of the utility model；
Fig. 5 is the structural schematic diagram of lighting device provided by the embodiment of the utility model.
Appended drawing reference:
Lens body 10；
Top surface (light-emitting surface) 101；
Side (reflective surface) 102；
Bottom surface 103；
Enter optical cavity 1031；
Incidence surface 10311；
Light source 20；
Heat-conducting substrate 30；
Heat conducting base 40.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described.Unless otherwise defined,
All technical and scientific terms used herein are generally understood with person skilled in the technical field of the present invention
Meaning it is identical.Terminology used in the description of the utility model herein is intended merely to description specific embodiment
Purpose, it is not intended that in limitation the utility model.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the utility model., which there is the phrase, in each position in the description to be each meant
Identical embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art are explicit
Ground and implicitly understand, embodiment described herein can be combined with other embodiments.
On the one hand, the utility model embodiment provides a kind of flashlight lens, refering to fig. 1 to Fig. 4, the flashlight lens
Including lens body 10, the lens body 10 includes: bottom surface 103, top surface 101 and side 102, and the bottom surface 103 is equipped with
Enter optical cavity 1031, it is described enter optical cavity 1031 surface be refraction incidence surface 10311；With continued reference to Fig. 3, it is described enter optical cavity 1031 be
One cavity intercepted by 103 place plane of bottom surface.Light source 20 setting it is described enter optical cavity 1031 in, will be in the light source 20
Heart point is placed in 103 institute of bottom surface planar.The light La that light source 20 issues enters the lens from the incidence surface 10311
In main body 10.Due to the light source 20 setting it is described enter optical cavity 1031 in, light that the light source 20 is projected to surrounding whole
It is entered in the lens body 10 from the incidence surface 10311.
The top surface 101 is refraction light-emitting surface 101；The light-emitting surface 101 is for will go into the lens body 10
Light projects, to illuminate to 101 pairs of fronts of light-emitting surface.
Between the bottom surface 103 and top surface 101, the side 102 is reflective surface 102, described for the side 102
Side 102 is used to enter the incidence surface 10311 total reflection of the light in the lens body 10, the light after making total reflection
Line and the light-emitting surface 101 are projected at plumbness, and from the light-emitting surface 101.With continued reference to Fig. 4, the light source 20 is issued
Light La from the incidence surface 10311 refraction after refracted light Lb enter in the lens body 10, the lens body
10 side 102 is reflective surface 102, and the fully reflecting surface is totally reflected refracted light Lb after the refraction, and reflection is helped
Reflection light Lc, the direction of the total reflection light Lc and the direction of the light-emitting surface 101 are perpendicular, with the light-emitting surface
101 vertical directions, which become, projects light Ld.
In one embodiment of the utility model, light emitting diode can be used as light source 20.It should be noted that institute
It states the orientation such as "top", "bottom", " side " and refers to relative position between each face, and it is practical in flashlight lens to be not same as each face
Using when specific setting position.
With continued reference to Fig. 1, Fig. 2 and Fig. 4, the top surface 101 is a flat surface.Since the top surface 101 is a flat surface, own
The vertical direction for projecting light Ld and the top surface 101 projects, and projects in parallel so that all output lights meet, thus preferably
Front is illuminated.
The flashlight lens that the example of the utility model provides are introduced by the light that the bottom surface 103 issues light source 20
The incidence surface 10311 is entered in the lens body 10 into the lens body 10, and through the side 102
Light total reflection, light and the light-emitting surface 101 after making total reflection are projected at plumbness, and from the light-emitting surface 101.From
And realize limit central light strength, spot area does not have aperture, and hot spot is uniform, while improving 20 conversion ratio of light source to greatest extent, subtracts
Few light efficiency loss.
With continued reference to Fig. 1, Fig. 2 and Fig. 4, it is described enter optical cavity 1031 be one " people " glyph shape revolving body.By described
Revolving body so that the light La that issues of the light source 20 on same plane (X/Y plane) to enter angular a consistent, thus light out
Total reflection light Lc (projecting light Ld) on face 101 symmetrically projects central point as axle center using the light-emitting surface 101.
It is described enter optical cavity 1031 be " people " glyph shape so that the light source 20 project all directions on light La it is equal
Can be entered from the incidence surface 10311 into the lens body 10, and by after 102 pairs of reflective surface total reflections from institute
The injection of light-emitting surface 101 is stated, light efficiency loss is reduced.
With continued reference to Fig. 4, it is described enter 1031 revolving body of optical cavity bus be a slope from the bottom surface 103 to top surface 101
The camber line that direction is gradually increased.Since the slope of the bus is gradually increased from bottom surface 103 to 101 direction of top surface, so that in Z axis
Direction further away from the light source 20 light after reflecting, the opposite reduction of the angle of plane included angle where with bottom surface, to reduce
The thickness H of the lens body 10.With continued reference to Fig. 4, since the light La2 of the light source 20 sending is from closer to the top surface
101, it can be just reflected into anti-after reflecting at light Lb2 is reflected just further away from the bottom surface 103 into the lens body 10
Light Lc2 is penetrated, light Lb2 is opposite with the angle of horizontal direction when the camber line slope is larger, after refraction reduces, so that described
Also the reflection to light Lb2 is able to satisfy when the thickness H of mirror main body 10 is smaller.
More specifically, with continued reference to Fig. 4, it is described enter optical cavity 1031 be indent, and inside forms a refraction incidence surface
10311.The refraction incidence surface 10311 is connected to bottom surface 103, and refraction incidence surface 10311 is intrados.Due to reflecting incidence surface
10311 be interior camber line, and incidence angle is big, and the light reflected and level angle are small.It is described enter optical cavity 1031 bottom surface 103 formed
The refraction incidence surface 10311 of camber line in " people " font, light source 20 be set to it is described enter 1031 bottom surface 103 of optical cavity opening centre bit
It sets, 20 reflection light of light source reflects incidence surface 10311 by the incidence surface 10311, into the lens body 10.
The thickness of the lens body 10 can be determined by the opening for forming arc shape in " people " word in bottom surface 103, in " people " word
Arc shape is more vertical, and 10 thickness of lens body is thinner；The curvature in each section of region of arc shape is control in " people " word simultaneously
The uniformity of hot spot.
In the present embodiment, it is described enter 1031 bottom surface 103 of optical cavity opening center be overlapped with the center of bottom surface 103, it is luminous
Diode is set to center in the plane at 103 place of bottom surface.The light source 20 is the illuminating source 20 with certain volume.At this
In embodiment, light emitting diode can be considered point light source 20.
In one embodiment of the utility model, the lens body 10 uses polycarbonate pc (PC) or optics
Grade polymethylmethacrylacontinuous (PMMA) is molded.By with polycarbonate pc (PC) or optical grade polymethyl
Sour methyl esters (PMMA) reduces light efficiency loss so that the lens have better translucency.
On the other hand, the utility model also provides a kind of lighting device, comprising: above-mentioned flashlight lens, light source 20 are led
Hot substrate 30 and heat conducting base 40；The light source 20 is arranged in the 103 place plane of bottom surface, and 20 center point of the light source
In it is described enter 1031 revolving body of optical cavity axis position；By by 20 central point of light source setting it is described enter optical cavity 1031
The position of the axis of revolving body so that the light source 20 issue light La can symmetrically from the incidence surface 10311 into
Enter the lens, and by uniformly projecting after refraction and total reflection from the light-emitting surface 101.
The light source 20 is mounted on the heat-conducting substrate 30；30 one side of heat-conducting substrate is used for the light source 20
It is installed, it is on the other hand thermally conductive for being carried out to the light source 20.
The heat-conducting substrate 30 is mounted in the heat conducting base 40.The heat-conducting substrate 30 distributes the light source 20
Heat progress out is thermally conductive, the heat conducting base 40 can be conducted heat to, thus the heat come out to the light source 20
Amount radiates.
In one embodiment of the utility model, the light source 20 is single light source 20, and the single light source 20 is point light
Source 20 or round area source 20.The light source 20 is point light source 20 or round area source 20 preferably project it is relatively uniform
Symmetrical light.So that the light that the flashlight lens project is more symmetrically.
The light source 20 that the example of the utility model provides is arranged, by the bottom surface 103 on above-mentioned flashlight lens by light source
20 light issued are introduced into the lens body 10, and the incidence surface 10311 is entered institute by the side 102
The light total reflection in lens body 10 is stated, the light and the light-emitting surface 101 after making total reflection are at plumbness, and from described
Light-emitting surface 101 projects.To realize limit central light strength, spot area does not have aperture, and hot spot is uniform, while improving to greatest extent
20 conversion ratio of light source reduces light efficiency loss, and 20 setting structure of light source is simple, and production cost is low.
The above is only the embodiments of the present invention, are not intended to limit the scope of the patents of the utility model, although referring to before
Embodiment is stated the utility model is described in detail, it, still can be right for coming for those skilled in the art
Technical solution documented by aforementioned each specific embodiment is modified, or carries out equivalent replace to part of technical characteristic
It changes.All equivalent structures done using the utility model specification and accompanying drawing content are directly or indirectly used in other correlations
Technical field, similarly within the utility model patent protection scope.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are not departing from the utility model
Principle and objective in the case where above-described embodiment can be changed in the scope of the utility model, modify, replace and
Modification.
Claims (7)
1. a kind of flashlight lens, including lens body, which is characterized in that the lens body includes:
Bottom surface, the bottom surface are equipped with into optical cavity, it is described enter optical cavity surface be refraction incidence surface；
Top surface, the top surface are refraction light-emitting surface；
Side, the side between the bottom surface and top surface, the side be reflective surface, the side be used for by it is described enter
Smooth surface enters the total reflection of the light in the lens body, the light and the light-emitting surface after making total reflection at plumbness,
And it is projected from the light-emitting surface.
2. flashlight lens according to claim 1, which is characterized in that the top surface is a flat surface.
3. flashlight lens according to claim 1, which is characterized in that it is described enter optical cavity be one " people " glyph shape return
Swivel.
4. flashlight lens according to claim 3, which is characterized in that it is described enter optical cavity revolving body bus be a slope
The camber line being gradually increased from the bottom surface to top surface direction.
5. flashlight lens according to claim 1, which is characterized in that the lens body uses polycarbonate pc
Or it optical-grade polymethylmethacrylacontinuous is molded.
6. a kind of lighting device, it is characterised in that: include:
Flashlight lens described in claim 1 to 5 any one；
Light source, the light source setting is in plane where the bottom surface, and light source center point enters optical cavity revolving body described in
Axis position；
Heat-conducting substrate, the light source are mounted on the heat-conducting substrate；
Heat conducting base, the heat-conducting substrate are mounted in the heat conducting base.
7. lighting device according to claim 6, it is characterised in that: the light source is single light source, and the single light source is
Point light source or round area source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169522.4U CN208670913U (en) | 2018-07-23 | 2018-07-23 | Flashlight lens and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169522.4U CN208670913U (en) | 2018-07-23 | 2018-07-23 | Flashlight lens and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208670913U true CN208670913U (en) | 2019-03-29 |
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ID=65829276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821169522.4U Active CN208670913U (en) | 2018-07-23 | 2018-07-23 | Flashlight lens and lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208670913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826230A (en) * | 2018-07-23 | 2018-11-16 | 深圳星标科技股份有限公司 | Flashlight lens and lighting device |
-
2018
- 2018-07-23 CN CN201821169522.4U patent/CN208670913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108826230A (en) * | 2018-07-23 | 2018-11-16 | 深圳星标科技股份有限公司 | Flashlight lens and lighting device |
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