CN205678598U - A kind of small-bore light-distribution lens of low-angle - Google Patents
A kind of small-bore light-distribution lens of low-angle Download PDFInfo
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- CN205678598U CN205678598U CN201620614489.6U CN201620614489U CN205678598U CN 205678598 U CN205678598 U CN 205678598U CN 201620614489 U CN201620614489 U CN 201620614489U CN 205678598 U CN205678598 U CN 205678598U
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- total reflection
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Abstract
This utility model provides a kind of small-bore light-distribution lens of low-angle, including the first total reflection lens and the second total reflection lens, one end of first total reflection lens is incidence end, the other end of the first total reflection lens and second total reflection lens one end connect, the other end of the second total reflection lens is exiting surface, wherein incidence end offers taper entrance aperture, the length of the first total reflection lens meets and realizes being totally reflected at least twice in the first total reflection lens from the light of bellmouth outgoing, the second total reflection lens be shaped as truncated cone-shaped.The small-bore light-distribution lens of this utility model one low-angle, by taper entrance aperture, assigns to the first total reflection lens by light, and the most directly from central homology, it is to avoid the wide-angle outgoing of light；The setting of two-stage total reflection lens so that emergent light, through at least 3 total reflections, reaches to increase light path, increases the effect of focal length, it is achieved the bore of light low-angle outgoing and light-distribution lens can reach the least.
Description
Technical field
This utility model relates to light-distribution lens technical field, particularly relates to a kind of small-bore light-distribution lens of low-angle.
Background technology
Low-angle light fixture is widely used in stage lighting, wall lamp, delineascope, landscape decorating lamp, little pocket lamp, desk lamp etc.
Application scenario, in order to the uniform light making light source send is distributed in low-angle, meets the demand of application scenario, it usually needs for light
Source collocation light-distribution lens, uses lens to change the propagation path of light, finally gives and meet the illumination region that people are actually needed.
According to the method for designing of traditional light-distribution lens, output illumination angle is the least, and required optics bore is the biggest, i.e.
If accomplishing minimum angle, it is the biggest that optics of lens bore needs do；What optical height can not do simultaneously is the shortest, so
Whole lens volume and weight is big, and this is the drawback utilizing conventional lens design method design low-angle lens.
Utility model content
The purpose of this utility model is to provide a kind of small-bore light-distribution lens of low-angle, solves existing light-distribution lens and is carrying out
The technical problem that during low-angle luminous intensity distribution, the optics of lens bore of existence is big.
In order to achieve the above object, this utility model following technical scheme of offer: a kind of small-bore light-distribution lens of low-angle,
Including the first total reflection lens and the second total reflection lens, one end of the first total reflection lens is incidence end, and the first total reflection is thoroughly
The other end of mirror and second total reflection lens one end connect, and the other end of the second total reflection lens is exiting surface, wherein, incidence end
For taper entrance aperture；Second total reflection lens be shaped as truncated cone-shaped；The length of the first total reflection lens meets to go out from bellmouth
The light penetrated realizes being totally reflected at least twice in the first total reflection lens.
Feature of the present utility model also resides in,
The inner surface of entrance aperture is continuous free form surface or ring surface.
Exiting surface is the bottom surface of the cross-sectional area maximum of the truncated cone-shaped of the second total reflection lens, and the face type of exiting surface is plane
Or sphere or aspheric surface.
The face type of the fully reflecting surface of the first total reflection lens and the fully reflecting surface of the second total reflection lens is rotational symmetric
Cambered surface or continuously free form surface or ring surface or free form surface and the combination of ring surface.
The center of the second total reflection lens exiting surface is circle hole shape or stepped bore to the second total reflection lens inner recess.
The small-bore light-distribution lens of this utility model one low-angle, by taper entrance aperture, assigns to light first and is all-trans
Penetrate lens, and the most directly from central homology, it is to avoid the wide-angle outgoing of light；The setting of two-stage total reflection lens so that outgoing
Light, at least through 3 total reflections, reaches to increase light path, increases the effect of focal length, can accomplish that half light intensity full-shape is 5 degree and less
Very small angles, it is achieved the bore of light low-angle outgoing and light-distribution lens can reach the least, compared to conventional lenses this
The bore little at least 1/3 of utility model.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of this utility model small-bore light-distribution lens of a kind of low-angle；
Fig. 2 is the structural representation that exiting surface is circle hole shape of this utility model small-bore light-distribution lens of a kind of low-angle；
Fig. 3 is the structural representation that exiting surface is stepped bore of this utility model small-bore light-distribution lens of a kind of low-angle
Figure；
Fig. 4 is the light path schematic diagram of this utility model small-bore light-distribution lens of a kind of low-angle.
In figure, 1. entrance aperture, 2. the first total reflection lens, 3. the second total reflection lens, 4. exiting surface.
Detailed description of the invention
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on this practicality
Embodiment in novel, the every other reality that those of ordinary skill in the art are obtained under not making creative work premise
Execute example, broadly fall into the scope of this utility model protection.
According to Fig. 1, the structure of this utility model small-bore light-distribution lens of a kind of low-angle, this utility model bag are described
Including the first total reflection lens 2 and the second total reflection lens 3, one end of the first total reflection lens 2 is incidence end, and the first total reflection is thoroughly
The other end of mirror 2 and second total reflection lens 3 one end connect, and the other end of the second total reflection lens 3 is exiting surface 4, wherein, enters
Penetrating end is taper entrance aperture 1, and the inner surface of entrance aperture 1 is continuous free form surface or ring surface, the shape of the second total reflection lens 3
For truncated cone-shaped, the maximum bottom surface of the cross-sectional area of truncated cone-shaped is exiting surface 4, and the face type of exiting surface 4 is plane or cambered surface or freedom
Curved surface.The face type of the fully reflecting surface of the first total reflection lens 2 and the fully reflecting surface of the second total reflection lens 3 is rotational symmetric arc
Face or continuously free form surface or ring surface or free form surface and the combination of ring surface.The center of the second total reflection lens 3 exiting surface 4
It is circle hole shape or stepped bore to the second total reflection lens 3 inner recess, sees Fig. 2 and Fig. 3 respectively.
During use, first light-distribution lens of the present utility model is installed on light source outer wall so that the light of light source is by the
The taper entrance aperture 1 of the incidence end of one total reflection lens 2 is refracted in the first total reflection lens 2, the index path of light such as Fig. 4
Shown in, because incidence end is taper, light can be assigned to the first total reflection lens, and the most directly from central homology, it is to avoid light
The wide-angle outgoing of line, after light enters the first total reflection lens 2, running into fully reflecting surface will be totally reflected, total reflection
Number of times by the first total reflection lens length determine, light is after the total reflection of the first total reflection lens 2, with certain angle
Degree enters in the second total reflection lens 3, and owing to the second total reflection lens 3 is truncated cone-shaped structure, light is at the second total reflection lens 3
Inner total reflection, its angle just can realize the exiting parallel of light, it is achieved low-angle luminous intensity distribution.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in change
Or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be described with power
The protection domain that profit requires is as the criterion.
Claims (8)
1. the small-bore light-distribution lens of low-angle, it is characterised in that including the first total reflection lens, described first total reflection is thoroughly
One end of mirror is incidence end, and the first total reflection lens other end and second total reflection lens one end connect, described second total reflection
The other end of lens is exiting surface, and the light that the length of described first total reflection lens meets from bellmouth outgoing is all-trans first
In penetrating lens, realization is totally reflected at least twice.
A kind of small-bore light-distribution lens of low-angle the most according to claim 1, it is characterised in that: described first total reflection is thoroughly
The incidence end of mirror offers taper entrance aperture.
A kind of small-bore light-distribution lens of low-angle the most according to claim 2, it is characterised in that: the interior table of described entrance aperture
Face is continuous free form surface or ring surface.
4. according to the small-bore light-distribution lens of a kind of low-angle described in any one of claim 1-3, it is characterised in that: described second
Total reflection lens be shaped as truncated cone-shaped.
A kind of small-bore light-distribution lens of low-angle the most according to claim 4, it is characterised in that: described exiting surface is second
The bottom surface that the cross-sectional area of total reflection lens truncated cone-shaped is maximum.
A kind of small-bore light-distribution lens of low-angle the most according to claim 5, it is characterised in that: described first total reflection is thoroughly
The face type of the fully reflecting surface of mirror and the fully reflecting surface of the second total reflection lens be rotational symmetric cambered surface or continuously free form surface or
Ring surface or free form surface and the combination of ring surface.
7. according to the small-bore light-distribution lens of a kind of low-angle described in claim 5 or 6, it is characterised in that: described second is all-trans
The face type of the exiting surface penetrating lens is plane or cambered surface or free form surface.
A kind of small-bore light-distribution lens of low-angle the most according to claim 7, it is characterised in that: described second total reflection is thoroughly
The center of mirror exiting surface is circle hole shape or stepped bore to the second total reflection lens inner recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620614489.6U CN205678598U (en) | 2016-06-21 | 2016-06-21 | A kind of small-bore light-distribution lens of low-angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620614489.6U CN205678598U (en) | 2016-06-21 | 2016-06-21 | A kind of small-bore light-distribution lens of low-angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205678598U true CN205678598U (en) | 2016-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620614489.6U Active CN205678598U (en) | 2016-06-21 | 2016-06-21 | A kind of small-bore light-distribution lens of low-angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN205678598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI637128B (en) * | 2016-11-25 | 2018-10-01 | 福安工業股份有限公司 | Pattern projection lamp and the light guide thereof |
-
2016
- 2016-06-21 CN CN201620614489.6U patent/CN205678598U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI637128B (en) * | 2016-11-25 | 2018-10-01 | 福安工業股份有限公司 | Pattern projection lamp and the light guide thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No.159, Tengfei 2nd Road, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu Patentee after: CHENGDU HAN DE SHENG BANG OPTICAL Co.,Ltd. Address before: 610015, No. two, No. 159, Tengfei Economic Development Zone, Shuangliu County Southwest Airlines, Chengdu, Sichuan Patentee before: CHENGDU HAN DE SHENG BANG OPTICAL Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |