CN217875682U - Optical module and lamp - Google Patents
Optical module and lamp Download PDFInfo
- Publication number
- CN217875682U CN217875682U CN202222043301.5U CN202222043301U CN217875682U CN 217875682 U CN217875682 U CN 217875682U CN 202222043301 U CN202222043301 U CN 202222043301U CN 217875682 U CN217875682 U CN 217875682U
- Authority
- CN
- China
- Prior art keywords
- light
- plain noodles
- lens
- optical module
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides an optical module and lamps and lanterns, optical module includes interconnect's first lens and second lens, first lens have towards the first income plain noodles that the light source set up and with the first play plain noodles that the first income plain noodles set up relatively, the second lens have with the second income plain noodles of first play plain noodles looks butt and with the second play plain noodles that the second income plain noodles set up relatively, the second goes out plain noodles from its central point department orientation the second income plain noodles is sunken to be equipped with first bulge and encircle at this sunken department the second bulge that first bulge set up, light partly that the light source sent passes through first bulge with the second bulge refracts out, and another part is followed after once reflecting at least the rest refracts out on the second play plain noodles. Compared with the prior art, the utility model discloses can eliminate vice facula and glare that lamps and lanterns produced, reduce stray light and improved holistic light efficiency simultaneously.
Description
Technical Field
The utility model relates to an optical module and lamps and lanterns belongs to the lighting technology field.
Background
Because the existing optical lens is assembled in a shell of a lamp, a large amount of stray light generated by the lens can be scattered in the lamp to cause loss of light energy, so that the efficiency of the lens is about 85 percent and is difficult to further improve.
Accordingly, it is desirable to provide an optical module and a lamp to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical module and lamps and lanterns can improve the light efficiency.
In order to achieve the above object, the utility model provides an optical module, first lens and second lens including interconnect, first lens have towards the first income plain noodles that the light source set up and with the first play plain noodles that the first income plain noodles set up relatively, the second lens have with the second income plain noodles of first play plain noodles looks butt and with the second play plain noodles that the second income plain noodles set up relatively, the second goes out plain noodles from its central point department orientation the second income plain noodles is sunken to be equipped with first bulge and encircle at this sunken department the second bulge that first bulge set up, light partly that the light source sent passes through first bulge with the second bulge refracts out, and another part is followed after once reflecting at least the rest refracts out on the second play plain noodles.
As a further improvement of the present invention, the first protruding portion is a curved surface protruding and disposed along the light emitting direction.
As a further improvement of the present invention, the second protrusion includes a first side and a second side, the first side is connected to the second side with between the first protrusion, just the orthographic projection area of the second side on the horizontal plane is greater than the orthographic projection area of the first side on the horizontal plane.
As a further improvement of the present invention, a third protrusion is further provided on the second light emitting surface, and the third protrusion surrounds the second protrusion.
As a further improvement, the first light incident surface is the first light emergent surface, the second light incident surface is the second light emergent surface, the first bulge reaches the second bulge is symmetrical about the same axis.
As a further improvement, the first plain noodles with the second goes into the plain noodles and is the curved surface, just first plain noodles is followed the light-emitting direction orientation the second lens protrusion, the second goes into the plain noodles and inwards caves in along the light-emitting direction.
As a further improvement of the present invention, the side surface of the second lens has a first reflecting surface and a second reflecting surface, the first reflecting surface is located the first lens and between the second reflecting surfaces, a sawtooth structure is provided on the second reflecting surface, the sawtooth structure is used for dispersing the light emitted by the light source on the second reflecting surface.
As a further improvement of the present invention, the second reflecting surface is formed with a first opening and a second opening, wherein the radius of the first opening is smaller than the radius of the second opening, and the first reflecting surface surrounds the first opening and passes through the first opening is connected to the second reflecting surface.
As a further improvement of the present invention, the cross-sectional profile of the first reflecting surface gradually increases along the light-emitting direction, the cross-sectional profile of the second reflecting surface gradually increases along the light-emitting direction, and the increasing amplitude of the cross-sectional profile of the second reflecting surface is greater than the increasing amplitude of the cross-sectional profile of the first reflecting surface.
In order to achieve the above object, the present invention provides a lamp, including a light source module and the optical module as above, the first lens is compared with the second lens is close to the light source.
The utility model has the advantages that: the utility model discloses can eliminate vice facula and the glare that lamps and lanterns produced, reduce stray light and improve holistic light efficiency simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of the optical module of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of the optical module of the present invention.
Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.
Fig. 4 is a schematic cross-sectional view of the optical module according to the present invention.
Fig. 5 is a schematic diagram of the optical path structure of the optical module of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
In order to avoid obscuring the present invention with unnecessary details, it should be noted that only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1 to 5, the utility model discloses a lamp, lamp includes light source module and optical module 100, the light source module includes the light source board and sets up light source on the light source board, optical module 100 is lens and is used for the cover to establish on the light source, with this improvement the holistic light efficiency of lamp. For clarity of description, the following description will take the lamp as an example for detailed description.
As shown in fig. 1, the optical module 100 includes a first lens 10 and a second lens 20, the first lens 10 is disposed closer to the light source than the second lens 20, and light emitted from the light source passes through the first lens 10 and then is refracted out of the second lens 20.
The second lens 20 is made of plastic, the second lens 20 has a second light incident surface 21 and a second light emitting surface 22, the second light incident surface 21 faces the first light emitting surface 12, the second light emitting surface 22 and the second light incident surface 21 are arranged oppositely, the second light incident surface 21 is preferably a curved surface matched with the first light emitting surface 12, and the second light incident surface 21 faces the second lens 20 in a concave manner along the light emitting direction.
Preferably, the first lens 10 and the second lens 20 are connected to each other, that is, the first light emitting surface 12 and the second light incident surface 21 are abutted by concave-convex fit, wherein the first light emitting surface 12 and the second light incident surface 21 can be free curved surfaces, so that the light emitted by the light source sequentially passes through the first light incident surface 11, the first light emitting surface 12, the second light incident surface 21 and the second light emitting surface 22, and is finally refracted at the second light emitting surface 22. Specifically, the rotation centers of the first lens 10 and the second lens 20 are located on the same axis, that is, a plane perpendicular to the light emitting direction is taken as a horizontal plane, orthogonal projections of the first light incident surface 11, the first light emitting surface 12, the second light incident surface 21 and the second light emitting surface 22 in the horizontal direction are all circular, and the first light incident surface 11, the first light emitting surface 12, the second light incident surface 21 and the second light emitting surface 22 are centrosymmetric about the same axis.
In order to further improve the light efficiency of the optical module 100, the second light emitting surface 22 is a concave surface, and since the second light incident surface 21 is a concave curved surface, the whole second lens 20 is a concave lens, and the cross-sectional area of the second lens 20 gradually increases along the light emitting direction. The second light exiting surface 22 is recessed from the center thereof toward the second light incident surface 21, and the horizontal height of the second light exiting surface 22 at the center thereof gradually increases along the radial direction, so that the second light exiting surface 22 is in a horn shape with a larger opening.
Further, a first protruding portion 23 is disposed at the center of the second light emitting surface 22, an orthographic projection of the first protruding portion 23 in the horizontal direction is circular, the surface of the first protruding portion 23 is connected to the second light emitting surface 22, and a convex curved surface is formed along the light emitting direction, so that the light emitted from the center of the optical module 100 is uniformly dispersed.
The second protruding portion 24 is disposed on the periphery of the first protruding portion 23, the second protruding portion 24 is in a triangular shape and is disposed around the first protruding portion 23, the second protruding portion 24 includes a first side surface 241 and a second side surface 242, wherein the first side surface 241 is biased to and disposed close to the first protruding portion 23, the second side surface 242 is disposed on the periphery of the first side surface 241, so that the first side surface 241 is located between the second side surface 242 and the first protruding portion 23, the orthographic projection area of the second side surface 242 on the horizontal plane is larger than the orthographic projection area of the first side surface 241 on the horizontal plane, that is, the surface area of the second protruding portion 24 on the side close to the center of the second light emitting surface 22 is smaller, so as to weaken the light distribution of the light source to the center of the optical module 100, so that more light is distributed to the periphery of the optical module 100 through the second side surface 242, and the specific ratio of the first side surface 241 to the second side surface 242 may be set as required, without any limitation.
It is understood that the central axes of the first and second protrusions 23 and 24 coincide and are centrosymmetrically about the same axis.
As shown in fig. 5, the periphery of the second protruding portion 24 is further provided with a third protruding portion 25, the third protruding portion 25 is also triangular and is disposed around the second protruding portion 24, and similarly, the third protruding portion 25 includes a third side surface 251 and a fourth side surface 252, wherein the third side surface 251 is disposed near and adjacent to the second protruding portion 24, the fourth side surface 252 is disposed at the periphery of the third side surface 251, such that the third side surface 251 is located between the fourth side surface 252 and the second protruding portion 24, and an orthographic area of the fourth side surface 252 in a horizontal plane may be slightly larger than an orthographic area of the third side surface 251 in a horizontal plane, so as to reduce the light quantity at the center of the optical module 100, where the third protruding portion 25 has the same function as the second protruding portion 24. It should be noted that, since the light at the center of the optical module 100 has been attenuated by the first protruding portion 23 and the second protruding portion 24, the third protruding portion 25 does not excessively attenuate the light at the center of the optical module 100 again, that is, the difference between the orthographic projection areas of the third side surface 251 and the fourth side surface 252 on the horizontal plane is smaller than the difference between the orthographic projection areas of the first side surface 241 and the second side surface 242 on the horizontal plane, so as to prevent the light at the periphery of the optical module 100 from being unbalanced, thereby avoiding the generation of sub-spots and preventing glare, which can be specifically set as required.
It will be appreciated that the third projecting portion 25 is also centrosymmetric about the same axis as the first projecting portion 23 and the second projecting portion 24. Of course, the periphery of the third protrusion 25 may be at least provided with a fourth protrusion or more, and is not limited in particular. The first protruding portion 23, the second protruding portion 24 and the third protruding portion 25 can disperse the light emitted from the light source on the second light emitting surface 22.
It should be noted that the light emitted from the light source is divided into two parts after passing through the first lens 10, wherein one part can be refracted directly through the first protrusion 23, the second protrusion 24 and the third protrusion 25, and the other part needs to be refracted through the second light-emitting surface 22 after being reflected.
As shown in fig. 2 to 3, in another embodiment of the present invention, a side surface of the second lens 20 has a first reflective surface 26 and a second reflective surface 27, the first reflective surface 26 and the second reflective surface 27 are both disposed around the second light emitting surface 22, the first reflective surface 26 is located between the first lens 10 and the second reflective surface 27, the second reflective surface 27 is surrounded by a first opening and a second opening, wherein a radius of the first opening is smaller than a radius of the second opening, the first reflective surface 26 is disposed around the first opening and is connected to the second reflective surface 27 through the first opening, that is, a cross-sectional profile of the first reflective surface 26 is gradually increased in a light emitting direction, a cross-sectional profile of the second reflective surface 27 is also gradually increased, and an increase of the cross-sectional profile of the second reflective surface 27 is larger than an increase of the cross-sectional profile of the first reflective surface 26, so that the first reflective surface 26 and the second reflective surface 27 are discontinuous in a vertical direction, and the first reflective surface 26 and the second reflective surface 27 can be a free curved surface. The first reflecting surface 26 is used for reflecting the incident light from the first lens element 10 to the second light emitting surface 22.
It should be noted that the first reflecting surface 26 is a total reflecting surface and adopts a TIR structure. In a rectangular plane coordinate system, two unit vectors i, j in the same directions as the x-axis and the y-axis are taken as a group of bases. And taking the coordinate origin O as a starting point P as an end point as a vector a, wherein a is an arbitrary vector in the plane rectangular coordinate system.
As can be seen from the basic theorem of plane vectors, there is and only one pair of real numbers (x, y), such that a = xi + yj, and therefore the pair of real numbers (x, y) is called the coordinate of vector a, which is denoted as a = (x, y), which is the coordinate representation of vector a, where (x, y) is the coordinate of a point and vector a is called the position vector of point P.
Setting a light source as an origin, the emergent ray of the light source can be expressed by a linear algebra y = tan (theta) x, and a vector expression (cos (theta), sin (theta)) of the incident ray can be written by a curve equation, wherein theta is the angle of the incident ray, the direction vector of the target emergent ray is known, and the vector expression is expressed by a vector of a refraction law
The normal vector of the first reflecting surface 26 on a given incident ray can be found.
By specifying the coordinates of the initial point, adopting the mathematical thought of euler, combining the above formulas, using an excel tool to obtain the coordinate point of the free-form surface of the first reflecting surface 26, importing the coordinate point into cad, and connecting the coordinate points by using a free-form command to obtain curve data of the first reflecting surface 26.
The second reflecting surface 27 is configured to reflect the incident light from the first lens element 10 and the light reflected by the second light emitting surface 22, so that the incident light is emitted to the second light emitting surface 22, and the light efficiency of the optical module 100 reaches 95%. Be equipped with sawtooth structure 271 on the second plane of reflection 27, sawtooth structure 271 includes the rack of a plurality of bars, sawtooth structure 271 is used for being in the light that the light source sent is in disperse on the second plane of reflection 27, the rack certainly the outside protrusion of second plane of reflection 27 sets up, certainly, sawtooth structure 271 also can be the recess of inside sunken formation on the second plane of reflection 27, specifically do not do the restriction. The rack is laminated along vertical direction the surface slant of second plane of reflection 27 extends, because second plane of reflection 27 encircles the setting, the rack is followed second plane of reflection 27 encircles the setting, and the contained angle between the adjacent rack can be ignored for it is approximately parallel between the adjacent rack.
As shown in fig. 5, after the incident light from the first lens 10 enters the second lens 20, part of the light is directly emitted as described above, and the other parts of the light are respectively emitted to the first reflective surface 26 and the second light emitting surface 22, the light emitted to the first reflective surface 26 is reflected to the second light emitting surface 22, after the light directly emitted to the second light emitting surface 22 is mixed, the light with the incident angle smaller than the critical angle is directly refracted from the second light emitting surface 22, the light with the incident angle larger than or equal to the critical angle is continuously reflected by the second light emitting surface 22, and part of the light is reflected to the second reflective surface 27, is dispersed to the second light emitting surface 22 through the sawtooth structures 271, and continues to the light until the light is completely emitted.
To sum up, the utility model discloses can eliminate vice facula and the glare that lamps and lanterns produced, reduce stray light and improve holistic light efficiency simultaneously.
Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the spirit and scope of the present invention.
Claims (10)
1. An optical module, comprising: including interconnect's first lens (10) and second lens (20), first lens (10) have towards the first income plain noodles (11) that the light source set up and with first income plain noodles (11) relative first play plain noodles (12) that set up, second lens (20) have with first go out the second income plain noodles (21) that plain noodles (12) butt and with second go out plain noodles (22) that second income plain noodles (21) relative set up, second go out plain noodles (22) from its central point department orientation second income plain noodles (21) are sunken, and be equipped with first bulge (23) and encircle in this sunken second bulge (24) that first bulge (23) set up, and the light that the light source sent partly passes through first bulge (23) with second bulge (24) refract out, and another part is from the rest of second play plain noodles (22) refraction after once reflecting at least.
2. The optical module of claim 1 wherein: the first protruding part (23) is a curved surface protruding along the light emitting direction.
3. The optical module of claim 1, wherein: the second protruding part (24) comprises a first side surface (241) and a second side surface (242), the first side surface (241) is connected between the second side surface (242) and the first protruding part (23), and the orthographic projection area of the second side surface (242) on the horizontal plane is larger than that of the first side surface (241).
4. The optical module of claim 1, wherein: and a third protruding part (25) is further arranged on the second light emitting surface (22), and the third protruding part (25) is arranged on the outer side of the second protruding part (24) in a surrounding mode.
5. The optical module of claim 1, wherein: the first light incident surface (11), the first light emitting surface (12), the second light incident surface (21), the second light emitting surface (22), the first protruding portion (23), and the second protruding portion (24) are centrosymmetric with respect to the same axis.
6. The optical module of claim 1, wherein: the first light emitting surface (12) and the second light incident surface (21) are curved surfaces, the first light emitting surface (12) faces towards the second lens (20) in the light emitting direction, and the second light incident surface (21) is inwards concave in the light emitting direction.
7. The optical module of claim 1, wherein: the side surface of the second lens (20) is provided with a first reflecting surface (26) and a second reflecting surface (27), the first reflecting surface (26) is located between the first lens (10) and the second reflecting surface (27), a sawtooth structure (271) is arranged on the second reflecting surface (27), and the sawtooth structure (271) is used for dispersing light rays emitted by a light source on the second reflecting surface (27).
8. The optical module of claim 7 wherein: the second reflecting surface (27) is provided with a first opening and a second opening in a surrounding mode, the radius of the first opening is smaller than that of the second opening, and the first reflecting surface (26) surrounds the first opening and is connected with the second reflecting surface (27) through the first opening.
9. The optical module of claim 7 wherein: the cross-sectional profile of the first reflecting surface (26) is gradually increased along the light emitting direction, the cross-sectional profile of the second reflecting surface (27) is gradually increased along the light emitting direction, and the increasing amplitude of the cross-sectional profile of the second reflecting surface (27) is greater than the increasing amplitude of the cross-sectional profile of the first reflecting surface (26).
10. A light fixture, characterized by: comprising a light source module and an optical module as claimed in any of the claims 1-9, the first lens (10) being arranged closer to the light source than the second lens (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222043301.5U CN217875682U (en) | 2022-08-04 | 2022-08-04 | Optical module and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222043301.5U CN217875682U (en) | 2022-08-04 | 2022-08-04 | Optical module and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217875682U true CN217875682U (en) | 2022-11-22 |
Family
ID=84075607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222043301.5U Active CN217875682U (en) | 2022-08-04 | 2022-08-04 | Optical module and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217875682U (en) |
-
2022
- 2022-08-04 CN CN202222043301.5U patent/CN217875682U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220049829A1 (en) | Lighting system for motor vehicle headlight | |
| US7034343B1 (en) | Dipolar side-emitting LED lens and LED module incorporating the same | |
| KR101173319B1 (en) | Side reflector for illumination using light emitting diode | |
| US10139646B2 (en) | Transparent material light-emitting module with two reflection faces | |
| CN101430072B (en) | Assembled uniform surface light source | |
| US20170261179A1 (en) | Optical lens, backlight module and display device | |
| TW201426021A (en) | Optical lens and backlight module using the same | |
| TW201702521A (en) | Lens for light emitting device | |
| CN114263891B (en) | Hyperboloid collimating lens design method for car lamp | |
| KR101305728B1 (en) | Free―form lens with the effect of overlapping illumination patterns formed by different surfaces of the lens in order to improve the manufacturing tolerance of a led luminaire | |
| CN217875682U (en) | Optical module and lamp | |
| KR102477136B1 (en) | Optical lenses, backlight modules and display devices | |
| CN115095838A (en) | Optical module and lamp | |
| US20090129095A1 (en) | Illumination system | |
| CN212005527U (en) | LED optical fiber lighting device with high coupling efficiency | |
| CN112682761A (en) | Lens and optical system | |
| CN210511509U (en) | Lens and optical system | |
| CN106764551B (en) | LED collimated illumination optics with refractive lens and reflector | |
| US6290374B1 (en) | Traffic signal lamp illuminated by light emitting diodes | |
| CN218298576U (en) | Wide-spot laser cladding head with optical fiber output | |
| CN110716249A (en) | Lens and light-emitting component with same | |
| CN210720790U (en) | Lens and light-emitting component with same | |
| TWI531843B (en) | Light emitting module and backlight module using the same | |
| CN219082910U (en) | Lens and lighting module | |
| CN215116989U (en) | Illumination optical system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |