CN217209201U - Optical system and lamp - Google Patents
Optical system and lamp Download PDFInfo
- Publication number
- CN217209201U CN217209201U CN202220740334.2U CN202220740334U CN217209201U CN 217209201 U CN217209201 U CN 217209201U CN 202220740334 U CN202220740334 U CN 202220740334U CN 217209201 U CN217209201 U CN 217209201U
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- optical
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- total reflection
- light source
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- 230000003287 optical effect Effects 0.000 title claims abstract description 181
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000741 silica gel Substances 0.000 claims abstract description 4
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000012994 photoredox catalyst Substances 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 6
- 241001465382 Physalis alkekengi Species 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model provides an optical system and lamps and lanterns, including optical assembly and light source subassembly, optical assembly has relative setting go into the light side and the light-emitting side just the light source subassembly orientation it sets up to go into the light side, optical assembly includes first optical part and second optical part, second optical part sets up the outside of first optical part, the inside wall of first optical part is first total reflection face, second optical part is kept away from the inside wall of one side of first optical part is the second total reflection face, the light that light source subassembly sent is in go into light side refraction back via respectively first total reflection face with behind the second total reflection face reflection the light-emitting side refraction and play. The utility model discloses a set up two sets of lenses and pack silica gel between lens and light source subassembly, can eliminate the interface reflection of incident surface, effectively promoted emergent ray's transmittance, can realize different grading angles through the camber of control total reflection face simultaneously.
Description
Technical Field
The utility model relates to an optical system and lamps and lanterns belongs to the lighting technology field.
Background
The existing spot lamp generally emits more energy as much as possible by controlling the curvatures of an incident surface, a total reflection surface and an exit surface, but incident light can generate interface reflection (Fresnel reflection) on the incident surface, most energy of the light is consumed, and the effective utilization rate of the light is difficult to further improve.
Accordingly, there is a need for an improved optical system and lamp to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical system and lamps and lanterns to improve the transmissivity of light.
In order to realize the above-mentioned purpose, the utility model provides an optical system, including optical assembly and light source subassembly, optical assembly has relative setting go into light side and light-emitting side just the light source subassembly orientation go into the light side and set up, optical assembly includes first optical part and second optical part, second optical part sets up the outside of first optical part, the inside wall of first optical part is first total reflection face, the second optical part is kept away from the inside wall of one side of first optical part is the second total reflection face, the light that the light source subassembly sent is in via respectively after going into the light side refraction first total reflection face with after the second total reflection face reflection light-emitting side refraction and play.
As a further improvement of the present invention, the first optical portion and the second optical portion are both horn-shaped, the second optical portion is disposed around the outside of the first optical portion, and the first optical portion and the second optical portion are centrosymmetric with respect to the same axis.
As a further improvement of the present invention, the first optical portion and the second optical portion are both in the shape of a strip, and the second optical portion includes two portions respectively disposed on both sides of the first optical portion.
As a further improvement, the optical assembly further includes a third optical portion disposed between the light source assembly, and the light emitted from the light source assembly passes through the third optical portion and then enters the first optical portion and the second optical portion respectively.
As a further improvement of the present invention, the refractive index of the third optical portion is the same as the refractive index of the second optical portion.
As a further improvement of the present invention, the first optical portion and the second optical portion are made of glass, PC or a resin material, and the third optical portion is made of silicone.
As a further improvement of the present invention, the first total reflection surface and the second total reflection surface are free-form surfaces.
As a further improvement of the present invention, the first optical portion is in the light incident side has a first incident surface, the second optical portion is in the light incident side has a second incident surface, the first optical portion is in the light emergent side has a first emergent surface, the second optical portion is in the light emergent side has a second emergent surface, the first incident surface with the second incident surface is staggered and set, the first emergent surface with the second emergent surface is located the coplanar.
As a further improvement of the present invention, the first emitting surface has a facing the second emitting surface extends to a position-limiting portion, the second emitting surface is correspondingly provided with a recess for accommodating the position-limiting portion, the position-limiting portion is matched with the recess, so that the first optical portion and the second optical portion are fixed relatively.
In order to achieve the above object, the present invention further provides a lamp including the optical system as described above.
The utility model has the advantages that: the utility model discloses a set up two sets of lenses and pack silica gel between lens and light source subassembly, can eliminate the interface reflection of incident surface, effectively promoted emergent ray's transmittance, can realize different grading angles through the camber of control total reflection face simultaneously.
Drawings
Fig. 1 is a schematic view of the light path structure of the lamp of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of the lamp of the present invention.
Fig. 3 is a schematic view of a cross-sectional structure of the lamp 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 fig. 3, the utility model discloses a lamp 100, be equipped with the optical system who is used for improving the light transmittance in lamp 100, optical system includes optical assembly 10, optical assembly 10 is the lens structure and covers and establish on lamp 100's light source 21, light source 21 can be led lamp pearl, optical assembly 10 is used for right the light that lamp 100 sent is controlled to promote the transmittance. For clarity of description, the following description will take the optical assembly 10 as an example applied to the luminaire 100, and will describe the specific structure of the luminaire 100 in detail.
As shown in fig. 2, the optical system includes an optical assembly 10 and a light source assembly 20, the optical assembly 10 is horn-shaped and has a light incident side and a light emitting side that are opposite to each other, wherein the side of the optical assembly 10 with a smaller cross section is the light incident side, and the side with a larger cross section is the light emitting side. The light source assembly 20 faces the light incident side, the light source assembly 20 includes a light source 21 and a substrate 22, the light source 21 is disposed on the substrate 22 and faces the optical assembly 10, so that the light emitted from the light source 21 passes through the light incident side and is emitted from the light emitting side.
As a preferred embodiment of the present invention, the optical assembly 10 includes a first optical portion 11 and a second optical portion 12, and the first optical portion 11 and the second optical portion 12 are centrosymmetric with respect to the same axis. The second optical part 12 is formed with a cavity for accommodating the first optical part 11, the first optical part 11 is flared, a first total reflection surface 112 is formed on the inner side wall of the first optical part 11, the second optical part 12 is flared and is arranged around the outer side of the first optical part 11, and a second total reflection surface 122 is formed on the inner side wall of the second optical part 12. Preferably, the entire inner side wall of the first optical portion 11 is the first total reflection surface 112, and the entire inner side wall of the second optical portion 12 on the side away from the first optical portion 11 is the second total reflection surface 122. It will be appreciated that the cavity is also flared to conform to the outer wall of the first optic 11, and the first total reflection surface 112 is disposed between the first optic 11 and the second optic 12.
As shown in fig. 2, in another alternative embodiment of the present invention, the first optical portion 11 and the second optical portion 12 are both strip-shaped, and the first optical portion 11 and the second optical portion 12 both extend along the same direction, that is, the first optical portion 11 and the second optical portion 12 both extend along the normal direction of the cross-sectional view of the luminaire 100 in fig. 2, the second optical portion 12 includes two portions respectively disposed at two sides of the first optical portion 11, and the second optical portion 12 is left-right symmetrical with respect to the first optical portion 11, and may be disposed specifically as needed, and is not limited herein.
The first optical unit 11 has a first incident surface 111 on the light incident side, the first optical unit 11 has a first exit surface 113 on the light exit side, the second optical unit 12 has a second incident surface 121 on the light incident side, and the second optical unit 12 has a second exit surface 123 on the light exit side.
As set forth above, the light emitted from the light source assembly 20 can pass through the first optical portion 11 and the second optical portion 12, and can be divided into a first path and a second path, wherein the first path sequentially passes through the first incident surface 111 for refraction, the first total reflection surface 112 for reflection, and the first exit surface 113 for refraction, and the second path sequentially passes through the second incident surface 121 for refraction, the second total reflection surface 122 for reflection, and the second exit surface 123 for refraction. That is, the light emitted from the light source module 20 passes through the first path and the second path from the light incident side, and then exits from the light exiting side. In another embodiment of the present invention, the first exit surface 113 and the second exit surface 123 are located on the same plane, and the first incident surface 111 and the second incident surface 121 are arranged in a staggered manner.
As a preferred embodiment of the present invention, a third optical portion 13 is further disposed between the optical assembly 10 and the light source assembly 20, and the first optical portion 11, the second optical portion 12, and the third optical portion 13 are centrosymmetric with respect to the same axis. The light emitted from the light source assembly 20 passes through the third optical portion 13 and then enters the first optical portion 11 and the second optical portion 12, respectively.
Specifically, the third optical portion 13 is disposed between the light source 21 and the light incident side to fill a gap between the light source 21 and the first optical portion 11 and the second optical portion 12, so as to reduce fresnel reflection to increase the transmittance of light. Preferably, the refractive index of the third optical portion 13 is the same as the refractive index of the second optical portion 12. It is to be understood that the refractive index of the third optical portion 13 is the same as that of the second optical portion 12, and is not limited thereto as long as the refractive index is the same or close to each other. The third optical portion 13 and the second optical portion 12 may be made of the same material, and thus the refractive index of the third optical portion 13 is the same as that of the second optical portion 12, but of course, the material of the third optical portion 13 may be different from that of the second optical portion 12, and may be specifically provided as needed, and is not limited thereto.
In the above embodiment, the first optical portion 11 and the second optical portion 12 may be made of glass, including but not limited to polymethyl methacrylate (PMMA), Polycarbonate (PC) or a resin material, the first optical portion 11 and the second optical portion 12 are substantially lenses, and the third optical portion 13 may be made of silicone. When the first optical portion 11 and the second optical portion 12 are made of organic glass, since the refractive index of silicone is 1.41 and is close to that of organic glass, which is 1.489, the interface reflection (fresnel reflection) of the first incident surface 111 and the second incident surface 121 can be eliminated. Of course, in other embodiments of the present invention, the third optical portion 13 may be made of other materials, and is not limited to this, as long as it is close to the refractive index of the first optical portion 11 and the second optical portion 12.
In another preferred embodiment of the present invention, the first total reflection surface 112 and the second total reflection surface 122 are both free-form surfaces. The angle of the emergent light can be adjusted by controlling the curvatures of the first total reflection surface 112 and the second total reflection surface 122, so that the transmittance is greatly improved to approach 100%.
As shown in fig. 1, specifically, a normal vector of any point on the first total reflection surface 112
Satisfy the requirement of
Wherein,
the incident light before being reflected by the first total reflection surface 112 at the point,
is the emergent ray at that point, n 1 Is the refractive index of the first optical portion 11. Similarly, the normal vector of any point on the second total reflection surface 122
Satisfy the requirement of
Wherein,
the incident light before being reflected by the second total reflection surface 122 at the point,
is the emergent ray at that point, n 2 Is the refractive index of the second optical portion 12.
By incident light
For the purpose of example only,
the vector form of (c) can be expressed as (cos θ, sin θ), where θ is the angle of the incident ray to the x-axis. According to different requirements of a user on the light distribution angle of the lamp 100, different light distribution angles such as 10 °, 24 °, 30 °, 60 ° can be set, and the direction vector of the emergent light changes accordingly. When the direction vector of the emergent ray is knownIn this case, the normal vector of the first total reflection surface 112 or the second total reflection surface 122 on the predetermined incident light ray can be obtained. By specifying the coordinates of the initial point, using the mathematical concept of euler, combining the above formulas to obtain the coordinates of each point of the first total reflection surface 112 and the second total reflection surface 122, and using a free curve command to connect the coordinate points to obtain the data of the free curved surfaces of the first total reflection surface 112 and the second total reflection surface 122.
As shown in fig. 3, as another embodiment of the present invention, the first emitting surface 113 has a limiting portion 114 extending toward the second emitting surface 123, a groove for accommodating the limiting portion 114 is correspondingly formed on the second emitting surface 123, and the limiting portion 114 is engaged with the groove to fix the first optical portion 11 and the second optical portion 12 relative to each other. Further, the luminaire 100 further includes a housing (not shown) for fixing and preventing the optical assembly 10 and the light source assembly 20 from being separated, and preventing the first optical portion 11, the second optical portion 12 and the third optical portion 13 from moving relatively to each other.
To sum up, the utility model discloses a set up two sets of lenses and pack silica gel between lens and light source subassembly 20, can eliminate the interface reflection of incident surface, effectively promoted emergent ray's transmissivity, can realize different grading angles through the camber of control total reflection surface simultaneously.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. An optical system is characterized by comprising an optical assembly and a light source assembly, wherein the optical assembly is provided with a light inlet side and a light outlet side which are oppositely arranged, the light source assembly faces the light inlet side, the optical assembly comprises a first optical part and a second optical part, the second optical part is arranged on the outer side of the first optical part, the inner side wall of the first optical part is a first total reflection surface, the inner side wall of one side, away from the first optical part, of the second optical part is a second total reflection surface, and light rays emitted by the light source assembly are refracted on the light outlet side after being refracted on the light inlet side and then are respectively reflected by the first total reflection surface and the second total reflection surface.
2. The optical system of claim 1, wherein: the first optical part and the second optical part are both trumpet-shaped, the second optical part is arranged on the outer side of the first optical part in a surrounding mode, and the first optical part and the second optical part are centrosymmetric relative to the same axis.
3. The optical system of claim 1, wherein: the first optical part and the second optical part are both in a strip shape, and the second optical part comprises two parts which are respectively arranged at two sides of the first optical part.
4. The optical system according to claim 2 or 3, characterized in that: and a third optical part is arranged between the optical assembly and the light source assembly, and light rays emitted by the light source assembly respectively enter the first optical part and the second optical part after passing through the third optical part.
5. The optical system of claim 4, wherein: the refractive index of the third optical part is the same as that of the second optical part.
6. The optical system of claim 4, wherein: the first optical portion and the second optical portion are made of glass, PC or resin materials, and the third optical portion is made of silica gel.
7. The optical system of claim 1, wherein: the first total reflection surface and the second total reflection surface are both free curved surfaces.
8. The optical system of claim 1, wherein: the first optical part is provided with a first incident surface at the light incident side, the second optical part is provided with a second incident surface at the light incident side, the first optical part is provided with a first emergent surface at the light emergent side, the second optical part is provided with a second emergent surface at the light emergent side, the first incident surface and the second incident surface are arranged in a staggered mode, and the first emergent surface and the second emergent surface are located on the same plane.
9. The optical system of claim 8, wherein: the first emergent surface is provided with a limiting part extending towards the second emergent surface, the second emergent surface is correspondingly provided with a groove for accommodating the limiting part, and the limiting part is matched with the groove so as to relatively fix the first optical part and the second optical part.
10. A luminaire comprising an optical system as claimed in any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122596698 | 2021-10-27 | ||
| CN2021225966986 | 2021-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217209201U true CN217209201U (en) | 2022-08-16 |
Family
ID=82760111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220740334.2U Active CN217209201U (en) | 2021-10-27 | 2022-04-01 | Optical system and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217209201U (en) |
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2022
- 2022-04-01 CN CN202220740334.2U patent/CN217209201U/en active Active
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