CN110375269A - Rectangular light spot lens - Google Patents
Rectangular light spot lens Download PDFInfo
- Publication number
- CN110375269A CN110375269A CN201910695404.XA CN201910695404A CN110375269A CN 110375269 A CN110375269 A CN 110375269A CN 201910695404 A CN201910695404 A CN 201910695404A CN 110375269 A CN110375269 A CN 110375269A
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- Prior art keywords
- light
- machine structure
- ray machine
- rectangular
- rectangle
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
This application involves a kind of rectangular light spot lens.Above-mentioned rectangular light spot lens include it is integrally formed enter ray machine structure, total reflection mechanism and ray machine structure out.It is described enter ray machine structure have light well.The ray machine structure out has rectangle light-emitting surface.It is described enter ray machine structure setting on the one hand can be used for placing light source, on the one hand be used for divergent light source dipped beam shaft portion light so that the light of the part is unlikely to concentrate very much.By light source place described in enter the entering light hole site of ray machine structure, enter ray machine structure into the rectangular light spot lens interior, and after each total reflection mechanism reflects described in the light warp that light source issues, projected by rectangle light-emitting surface.The light of injection can be superimposed to form rectangular light spot.The light-emitting surface of the rectangular light spot lens is rectangle, and design is simple, reduces design cost.
Description
Technical field
This application involves lighting technical fields, more particularly to a kind of rectangular light spot lens.
Background technique
As LED light source is in the extensive use of commercial lighting area, lens have been widely used in each different
Lighting area.A LED lamp bead or plurality of LEDs lamp bead is arranged as light source in traditional lens system, and lens are shaped to
It is round or rectangular.Since the surface of lens is both provided with circular Fresnel lines, so that will eventually get a circular light
Spot.But the shooting visual field of projector or camera is rectangle, it is lower that circular hot spot will lead to the efficiency of light energy utilization, energy wave
Take larger.
For being the device of rectangle as projector or this kind of shooting visual field of camera, one kind is needed to can produce rectangular light spot
Lens, but traditional lens mechanism design that can generate rectangular light spot is excessively complicated, increases design cost.
Summary of the invention
Based on this, it is necessary to it is excessively complicated for traditional lens mechanism design that can generate rectangular light spot, it increases and sets
The problem of counting cost, provides a kind of rectangular light spot lens.
A kind of rectangular light spot lens, comprising:
Enter ray machine structure, there is light well, light source enters ray machine structure through entering ray machine structure described in light well entrance, and described in warp
Refraction is gone out, and forms refracted light, the refracted light includes first refractive light and the second refracted light；
Be totally reflected mechanism, with it is described enter ray machine structure be fixedly connected, for being totally reflected to the first refractive light, shape
Help reflection light；And
Ray machine structure out is fixedly connected with the total reflection mechanism；The ray machine structure out has rectangle light-emitting surface, for institute
It states the second refracted light and the total reflection light is transmitted, to form rectangular light spot.
Entering ray machine structure described in one of the embodiments, includes:
First entering light face is arranged with the rectangle light-emitting surface parallel interval, and first entering light face is rectangle entering light
Face.
The curvature in first entering light face is from the central point in first entering light face to outside in one of the embodiments,
Edge is gradually increased, and the light reflected away through first entering light face directly reaches the rectangle light-emitting surface.
Enter ray machine structure described in one of the embodiments, further include:
Multiple second entering lights face is fixedly connected with first entering light face, and fixed between multiple second entering light faces
Connection, to form sunk structure in the total reflection mechanism.
In one of the embodiments, further include:
Multiple first recessed reflection light-condensing surfaces are arranged with two adjacent second entering light faces in first angle respectively.
The total reflection mechanism has multiple fully reflecting surfaces, the number of the fully reflecting surface in one of the embodiments,
Identical as the number in second entering light face, each described fully reflecting surface is used to receive the light reflected through second entering light face
Line.
In one of the embodiments, further include:
Second recessed reflection light-condensing surface is arranged with two adjacent fully reflecting surfaces in second angle respectively.
In one of the embodiments, further include:
End cap is set to the rectangle light-emitting surface, also, the end cap is overlapped with the center of the rectangle light-emitting surface, and
And the rectangle light-emitting surface is completely covered in the end cap.
The light well is one of rectangle light well or trapezoidal light well in one of the embodiments,.
The making material of the rectangular light spot lens is clear optical glass or transparent optical in one of the embodiments,
Plastics.
A kind of rectangular light spot lens lighting system, comprising:
Rectangular light spot lens as described in any one of above-described embodiment；And
Light source, be set to it is described enter ray machine structure center.
Above-mentioned rectangular light spot lens include it is integrally formed enter ray machine structure, total reflection mechanism and ray machine structure out.It is described enter
Ray machine structure has light well.The ray machine structure out has rectangle light-emitting surface.It is described enter ray machine structure setting on the one hand can be used for
Light source is placed, the light of divergent light source dipped beam shaft portion is on the other hand used for, so that the light of the part is unlikely to concentrate very much.It will
Enter the entering light hole site of ray machine structure described in light source placement, enters ray machine structure into the rectangular light spot described in the light warp that light source issues
Lens interior, and after the reflection of each total reflection mechanism, it is projected by rectangle light-emitting surface.The light of injection can be superimposed to form rectangle
Hot spot.The light-emitting surface of the rectangular light spot lens is rectangle, and design is simple, reduces design cost.
Detailed description of the invention
Fig. 1 is a kind of rectangular light spot lens arrangement figure that the application one embodiment provides；
Fig. 2 is the first entering light of one kind face structure chart that the application one embodiment provides；
Fig. 3 is that a kind of some light that the application one embodiment provides is vertically from rectangle light-emitting surface injection figure；
Fig. 4 is that a kind of some light that the application one embodiment provides is non-vertically from rectangle light-emitting surface injection figure；
Fig. 5 is that a kind of some light that the application one embodiment provides is projected through the first entering light face from rectangle light-emitting surface
Figure；
Fig. 6 is the angular hot spot figure of a kind of tool that the application one embodiment provides；
Fig. 7 is a kind of rectangular light spot lens lighting system figure that the application one embodiment provides；
Fig. 8 is the light chart that one kind that the application one embodiment provides is obtained when light source is 6mm × 6mm；
Fig. 9 is the light chart that one kind that the application one embodiment provides is obtained when light source is 5mm × 5mm；
Figure 10 is the light chart that one kind that the application one embodiment provides is obtained when light source is 4mm × 4mm；
Figure 11 is the light chart that one kind that the application one embodiment provides is obtained when light source is 3mm × 3mm；
Figure 12 is the light chart that one kind that the application one embodiment provides is obtained when light source is 2mm × 2mm；
Figure 13 is the light chart that one kind that the application one embodiment provides is obtained when light source is 1mm × 1mm.
Main element drawing reference numeral explanation
Rectangular light spot lens 10
Enter ray machine structure 110
Light well 111
First entering light face 112
Second entering light face 113
First recessed reflection light-condensing surface 114
Ray machine structure 120 out
Rectangle light-emitting surface 121
It is totally reflected mechanism 130
Second recessed reflection light-condensing surface 131
Fully reflecting surface 132
End cap 140
Light source 20
Rectangular light spot lens lighting system 30
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing to the application
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this Shen
Please.But the application can be implemented with being much different from other way described herein, those skilled in the art can be not
Similar improvement is done in the case where violating the application intension, therefore the application is not limited by following public specific implementation.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Referring to Figure 1, a kind of rectangular light spot lens of the application one embodiment.The rectangular light spot lens include into ray machine
Structure 110 goes out ray machine structure 120 and total reflection mechanism 130.
It is described enter ray machine structure 110 have light well 111.Light source through the light well 111 enter described in enter ray machine structure 110,
And enter ray machine structure 110 described in passing through and reflect away, form refracted light.The refracted light includes first refractive light and the second folding
Penetrate light.The total reflection mechanism 130 with it is described enter ray machine structure 110 be fixedly connected, for the first refractive light carry out
Total reflection forms total reflection light.The ray machine structure 120 out is fixedly connected with the total reflection mechanism 130.The ray machine structure out
120 have rectangle light-emitting surface 121, for transmiting to second refracted light and the total reflection light, to form square
Shape hot spot.
It is described enter ray machine structure 110, it is described go out ray machine structure 120 and the total reflection mechanism 130 integrated molding.Wherein one
In a embodiment, the making material of the rectangular light spot lens 10 is clear optical glass or transparent optical plastics.I.e., it is possible to adopt
The silica glass material for being 1.3 to 1.57 with refractive index, by it is described enter ray machine structure 110, it is described go out ray machine structure 120 and described complete
Lens body is made in reflecting mechanism 130.The rectangle light-emitting surface 121 can be plane and be also possible to curved surface, as long as described in guaranteeing
The outer profile of rectangle light-emitting surface 121 is rectangle.
The concrete shape of the light well 111 is without limitation.In an alternative embodiment, the light well 111 is
One of rectangle light well or trapezoidal light well.When the light well 111 is rectangle, the total reflection mechanism 130 can be with
Including four fully reflecting surfaces 132.Four planes of incidence of the incidence hole of rectangle and four fully reflecting surfaces 132 correspond, to adjust
The distribution of light.Four parts are divided into via the light that echo area projects away, then this four some light is by equably
It is assigned on corresponding four fully reflecting surfaces 132 from four planes of incidence of incidence hole respectively, then anti-via four fully reflecting surfaces 132
It is shot out, such light distributes more equally, and the intensity of each region of the hot spot projected away is more uniform, the wheel of hot spot
Exterior feature is more clear.
Above-mentioned rectangular light spot lens 10 include it is integrally formed enter ray machine structure 110, total reflection mechanism 130 and ray machine structure out
120.It is described enter ray machine structure 110 have light well 111.The ray machine structure 120 out has rectangle light-emitting surface 121.It is described enter ray machine
On the one hand the setting of structure 110 can be used for placing light source, the light of divergent light source dipped beam shaft portion is on the one hand used for, so that the portion
The light divided can be projected uniformly.By light source place described in enter 111 position of light well of ray machine structure 110, the light that light source issues
Through it is described enter ray machine structure 110 enter the rectangular light spot lens 10 inside, and through each total reflection mechanism 130 reflect after, by square
Shape light-emitting surface 121 projects.The light of injection can be superimposed to form rectangular light spot.The light-emitting surface 121 of the rectangular light spot lens is
Rectangle, design is simple, reduces design cost.
Refer to Fig. 2, in one of the embodiments, it is described enter ray machine structure 110 include the first entering light face 112 and multiple the
Two entering light faces 113.
First entering light face 112 and 121 parallel interval of rectangle light-emitting surface are arranged.Also, first entering light face
112 be rectangle entering light face.The outer profile Yu the light-emitting surface in first entering light face 121 is outer in one of the embodiments,
Profile is proportional.The multiple second entering light face 113 is fixedly connected with first entering light face 112.And multiple described second into
It is fixedly connected between smooth surface 113, to form sunk structure in the total reflection mechanism 130.The number of the fully reflecting surface 132
It is identical as the number in second entering light face 113.Each described fully reflecting surface 132 is for receiving through second entering light face
The light of 113 refractions.Angle between second entering light face 113 and the corresponding fully reflecting surface 132 and described complete
The refractive index of reflecting surface 132 is related, as long as the light for meeting the arrival fully reflecting surface 132 is totally reflected.It is optional at one
Embodiment in, the curvature in first entering light face 112 is gradually increased from the central point in first entering light face 112 to outer edge
Greatly, the light reflected away through first entering light face 112 directly reaches the rectangle light-emitting surface 121.That is first entering light face
The state that 112 formation quadrangles are tilted relative to intermediate position, since radius of curvature is smaller, the deflection angle of light is bigger, that
Light penetrates the form for being formed by hot spot after the plane of refraction and more levels off to the outer profile of plane of refraction.
Fig. 3-Fig. 5 is referred to, after light is injected on the side in rectangle light well 111 (i.e. the second entering light face 113), into
Entering and is reflected into lenticular body, refracted light is projected after deflecting on the lateral surface (fully reflecting surface 131) of lenticular body, point
Light is injected under the reflection of the lateral surface of lenticular body on rectangle light-emitting surface 121, is then shone out again, and shine out
There are two types of situations for angle between light and rectangle light-emitting surface: a part of light is vertically to project (such as from rectangle light-emitting surface
Shown in Fig. 3).Another part light is non-vertically to project (as shown in Figure 4) from rectangle light-emitting surface 121.Its excess-three lateral surface
The propagation path of (fully reflecting surface 131) light is also such.So since the light that light source ideally issues is uniform
Distribution, then being analyzed with such as Fig. 3 and Fig. 4: vertically being projected on projection surface from some light of rectangle light-emitting surface injection
A light is formed afterwards.One is equally also formed after non-vertically projecting on projection surface from some light that rectangle light-emitting surface projects
Light.This two light superpositions, which merge, forms a light.(analysis of front is with one of section in so multiple sections
Come what is analyzed) it is superimposed as rectangular light spot (including from the superposition in two mutually perpendicular directions).As shown in figure 5, if light
Top surface (i.e. first entering light face 112) of the line through light well 111, light correspondingly can also be superimposed as a rectangular light spot, and this
A rectangular light spot can be superimposed upon being gone out by offside reflection for front and among the rectangular light spot that is formed on position.
Be found through experiments that, since light source has a size, not all light originating point all on center shaft, and
And the junction (the combination lines of i.e. two fully reflecting surfaces 132) of the lateral surface of two adjacent lenticular bodies is can be gone out with light transmission
, that is to say, that light can be combined from lines from this and be reflected away, then correspondingly the shape of light source can also be from this knot
It is diagonally projected away outward at zygonema item, that is, produces four wedge angle spot areas (as shown in Figure 6).In order to make
The rectangular light spot is more beautiful, and the rectangular light spot lens 10 further include multiple first recessed anti-in one of the embodiments,
Penetrate caustic surface 114 and the second recessed reflection light-condensing surface 131.
Multiple first recessed reflection light-condensing surfaces 114 are set with two adjacent second entering light faces 113 in first angle respectively
It sets.The range of the first angle is 0 ° to 60 °.The second recessed reflection light-condensing surface 131 is described complete with adjacent two respectively
Reflecting surface 132 is arranged in second angle.The range of the second angle may be 0 ° to 60 °.On the lens body along combination
Lines are formed with indent reflection light-condensing surface, and light will be reflected in rectangular light spot, will not project outward from lines from combining.
Because the hot spot formed through the rectangular light spot lens 10 is the rectangular light spot with fillet, more beautiful.
The bottom end of the rectangular light spot lens 10 offers rectangle light well 111, the square in one of the embodiments,
The top of shape hot spot lens 10 is shaped to rectangle light well 111 in the equal proportion (" phase mentioned in mathematical textbooks
Rectangle light-emitting surface 121 seemingly "), and rectangle light-emitting surface 121 is parallel with the profile of rectangle light well 111.And the rectangular light spot
The circumferential surface of lens 10 is made of four sides (fully reflecting surface 132), by taking one of side as an example for, which is by square
Extend what fitting was formed beyond one side of shape light-emitting surface is parallel with it on rectangle light well.So that the rectangular light spot is saturating
Mirror 10 forms " truncated rectangular pyramids " body shape in geometry.
, when designing this lens, can first define these points: o point is the central point of rectangle light well 111 for we.Oy is
O point extends vertically up to the distance on sideline along the y axis.Ox is that o point extends vertically up to the distance on sideline along the x axis.oc
Distance of the X on sideline and Y-direction sideline intersection point is extended to for o point.Similarly, o1 point is the central point of rectangle light-emitting surface 121, o1y1、
o1x1、o1c1Explanation and it is above-mentioned similarly, repeat no more.So correspondingly, the structural relation according to upper section, o1y1/ oy=
o1x1/ ox=o1c1/ oc=certain value.So we are when establishing 10 model of rectangular light spot lens, it is only necessary to define three
A face:
First face (face C): o, o1、c1, this 4 points of c composition faces,
Second face (face Y): o, o1、y1, this 4 points of y composition faces,
Third face (face X): o, o1、x1, this 4 points of x composition faces.
These three faces constitute a quarter frame of mirror body, and the frame of entire mirror body is constructed accordingly by mirror image
Frame, being finally fitted to an entity again can be obtained by the rectangular light spot lens 10.
The rectangular light spot lens 10 further include end cap 140 in one of the embodiments,.
The end cap 140 is set to the rectangle light-emitting surface 121, also, the end cap 140 and the rectangle light-emitting surface
121 center is overlapped, and the rectangle light-emitting surface 121 is completely covered in the end cap 140.The area of the end cap 140 can be with
Greater than the area of rectangle light-emitting surface, convex edge could be formed in this way.The rectangular light spot lens 10 during installation, can be by convex
Edge is connected on luminaire body.
Fig. 7 is referred to, the application one embodiment provides a kind of rectangular light spot lens lighting system 30.The rectangular light spot
Lens lighting system 30 includes the rectangular light spot lens 10 and light source 20 as described in above-described embodiment.The light source 20 is set to institute
State the center into ray machine structure 110.The light source 20 can be LED light source.It can by rectangular light spot lens lighting system 30
To project rectangular light spot on projection screen.
Fig. 8-Figure 13 is referred to, is the rectangular of 5mm × 5mm for the light well of rectangular light spot lens 10 provided by the present application
When, the shape for the hot spot that light source is projected by 6mmX6mm size to 1mm × 1mm.The light source that Figure 13 corresponds to 1mm × 1mm is formed
Hot spot.By contrast, the light spot profile that Figure 13 is projected is clearest.Through comparing, when light well be 5mm × 5mm it is rectangular when,
Compare suitable dimension of light source to use in 1mm × 1mm or less.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of rectangular light spot lens characterized by comprising
Enter ray machine structure (110), have light well (111), light source through the light well (111) enter described in enter ray machine structure (110),
And enter ray machine structure (110) described in passing through and reflect away, refracted light is formed, the refracted light includes first refractive light and second
Refracted light；
Be totally reflected mechanism (130), with it is described enter ray machine structure (110) be fixedly connected, it is complete for being carried out to the first refractive light
Reflection forms total reflection light；And
Ray machine structure (120) out are fixedly connected with the total reflection mechanism (130)；Described ray machine structure (120) out there is rectangle to go out light
Face (121), for being transmitted to second refracted light and the total reflection light, to form rectangular light spot.
2. rectangular light spot lens according to claim 1, which is characterized in that it is described enter ray machine structure (110) include:
First entering light face (112) is arranged with rectangle light-emitting surface (121) parallel interval, and first entering light face (112)
For rectangle entering light face.
3. rectangular light spot lens according to claim 2, which is characterized in that the curvature in first entering light face (112) by
The central point in first entering light face (112) is gradually increased to outer edge, the light reflected away through first entering light face (112)
Directly reach the rectangle light-emitting surface (121).
4. rectangular light spot lens according to claim 3, which is characterized in that it is described enter ray machine structure (110) further include:
Multiple second entering lights face (113) is fixedly connected with first entering light face (112), and multiple second entering light faces
(113) it is fixedly connected between, to form sunk structure in the total reflection mechanism (130).
5. rectangular light spot lens according to claim 4, which is characterized in that further include:
Multiple first recessed reflection light-condensing surfaces (114), set with two adjacent second entering light faces (113) in first angle respectively
It sets.
6. rectangular light spot lens according to claim 5, which is characterized in that the total reflection mechanism (130) has multiple
The number of fully reflecting surface (132), the fully reflecting surface (132) is identical as the number in second entering light face (113), each institute
Fully reflecting surface (132) are stated for receiving the light reflected through second entering light face (113).
7. rectangular light spot lens according to claim 6, which is characterized in that further include:
Second recessed reflection light-condensing surface (131) is arranged with two adjacent fully reflecting surfaces (132) in second angle respectively.
8. rectangular light spot lens according to claim 1, which is characterized in that further include:
End cap (140) is set to the rectangle light-emitting surface (121), also, the end cap (140) and the rectangle light-emitting surface
(121) center is overlapped, and the rectangle light-emitting surface (121) is completely covered in the end cap (140).
9. rectangular light spot lens according to claim 1, which is characterized in that the light well (111) is rectangle light well
Or one of trapezoidal light well.
10. rectangular light spot lens according to claim 1, which is characterized in that the production of the rectangular light spot lens (10)
Material is clear optical glass or transparent optical plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695404.XA CN110375269B (en) | 2019-07-30 | 2019-07-30 | Rectangular facula lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695404.XA CN110375269B (en) | 2019-07-30 | 2019-07-30 | Rectangular facula lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110375269A true CN110375269A (en) | 2019-10-25 |
| CN110375269B CN110375269B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910695404.XA Active CN110375269B (en) | 2019-07-30 | 2019-07-30 | Rectangular facula lens |
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| Country | Link |
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| CN (1) | CN110375269B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256094A (en) * | 2020-01-22 | 2020-06-09 | 广州市焦汇光电科技有限公司 | Optical device, optical system and optical curtain wall projection system |
| CN113219670A (en) * | 2021-05-20 | 2021-08-06 | 中国科学院长春光学精密机械与物理研究所 | Optical-mechanical structure of head-up display system and assembling method of cemented lens group of optical-mechanical structure |
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| CN201335320Y (en) * | 2009-01-21 | 2009-10-28 | 陈哲艮 | Lens for street-lamp-used LED light source and street lamp using same |
| CN104132305A (en) * | 2014-07-04 | 2014-11-05 | 佛山市中山大学研究院 | Condensing lens |
| CN105674072A (en) * | 2016-01-25 | 2016-06-15 | 卢雪 | Rectangular total-reflection LED projecting lens |
| US20170343186A1 (en) * | 2016-05-26 | 2017-11-30 | Glo Ab | Narrow angle light engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201335320Y (en) * | 2009-01-21 | 2009-10-28 | 陈哲艮 | Lens for street-lamp-used LED light source and street lamp using same |
| CN104132305A (en) * | 2014-07-04 | 2014-11-05 | 佛山市中山大学研究院 | Condensing lens |
| CN104132305B (en) * | 2014-07-04 | 2017-01-25 | 佛山市中山大学研究院 | Condensing lens |
| CN105674072A (en) * | 2016-01-25 | 2016-06-15 | 卢雪 | Rectangular total-reflection LED projecting lens |
| US20170343186A1 (en) * | 2016-05-26 | 2017-11-30 | Glo Ab | Narrow angle light engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111256094A (en) * | 2020-01-22 | 2020-06-09 | 广州市焦汇光电科技有限公司 | Optical device, optical system and optical curtain wall projection system |
| CN111256094B (en) * | 2020-01-22 | 2022-09-23 | 广州市焦汇光电科技有限公司 | Optical device, optical system and optical curtain wall projection system |
| CN113219670A (en) * | 2021-05-20 | 2021-08-06 | 中国科学院长春光学精密机械与物理研究所 | Optical-mechanical structure of head-up display system and assembling method of cemented lens group of optical-mechanical structure |
| CN113219670B (en) * | 2021-05-20 | 2022-05-27 | 中国科学院长春光学精密机械与物理研究所 | Optical-mechanical structure of head-up display system and assembling method of cemented lens group of optical-mechanical structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110375269B (en) | 2021-01-08 |
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