CN220249736U - Narrow-opening optical system and LED module thereof - Google Patents
Narrow-opening optical system and LED module thereof Download PDFInfo
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- CN220249736U CN220249736U CN202321975444.8U CN202321975444U CN220249736U CN 220249736 U CN220249736 U CN 220249736U CN 202321975444 U CN202321975444 U CN 202321975444U CN 220249736 U CN220249736 U CN 220249736U
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- 230000003287 optical effect Effects 0.000 title claims abstract description 120
- 238000007493 shaping process Methods 0.000 claims abstract description 75
- 239000002245 particle Substances 0.000 claims description 13
- 230000000295 complement effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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Abstract
An LED module comprises a narrow-opening optical system, wherein the narrow-opening optical system comprises a narrow-opening lens, a cut-off line baffle, a beam shaping element and a light source, the beam shaping element is arranged in front of the light source, the narrow-opening lens is arranged in front of the beam shaping element, and the cut-off line baffle is arranged between the narrow-opening lens and the beam shaping element; the light beam shaping element comprises a first light beam shaping piece, the light source comprises a first LED light source, light rays emitted by the first LED light source are emitted through adjustment of the first light beam shaping piece, a first light beam with a cutoff line is formed through shielding of a cutoff line baffle, and the first light beam forms a dipped beam through a narrow-opening lens. The utility model has simple structure and convenient and quick installation, avoids a plurality of reflecting bowls to carry out multiple reflection through the beam shaping element, and has the light-emitting surface light with a narrow opening and a long and narrow structure on the premise of not increasing the cost and the complexity of the system.
Description
Technical Field
The utility model relates to the technical field of automobile lamps, in particular to a narrow-opening optical system and an LED module thereof.
Background
Low beam or single beam led modules have been widely used in automotive headlamp systems, where the width of the lens size generally limits the space size and appearance of the lamp. Along with the diversification of the appearance of the automobile lamp, the automobile lamp requires the lighting function and the appearance size to have a narrow opening and a narrow luminous surface light. However, in the existing high beam or single beam led module, the size of the lens of the module is larger in the general mass production design, and the longitudinal size (the size in the Y direction) of the opening is generally more than 30mm, so that the module cannot meet the requirements; therefore, a narrow opening module appears, and optical components are added compared with the traditional module, so that the optical efficiency of the system is reduced, the cost of the system is increased, and the assembly structure of the system is more complex.
As chinese utility model CN 116241822A, a narrow-opening vehicle lamp configuration is disclosed, which comprises an LED light source module, a reflection module and a lens, wherein the LED light source module comprises a first LED light source and a second LED light source, the reflection module comprises a first reflection module and a second reflection module, the first reflection module and the second reflection module are respectively located at two sides of the central axis of the lens, and two sides of the lens are respectively an incident surface and a light emitting surface; the light emitted by the first LED light source irradiates on the incident surface after being reflected for many times by the first reflecting module, the light emitted by the second LED light source irradiates on the incident surface after being reflected for many times by the second reflecting module, and the light reflected by the first reflecting module and the second reflecting module is emitted out of the light emergent surface simultaneously to form a preset light type. The first reflecting module comprises a first reflecting bowl and a second reflecting bowl, and light rays emitted by the first LED light source are reflected to the second reflecting bowl through the first reflecting bowl and then reflected to the incident surface through the second reflecting bowl. The second reflecting module comprises a third reflecting bowl and a fourth reflecting bowl, and light rays emitted by the second LED light source are reflected to the fourth reflecting bowl through the third reflecting bowl and then reflected to the incident surface through the fourth reflecting bowl. The transmission of light is carried out by arranging a plurality of reflecting bowls, so that the system cost is increased and the system assembling structure is more complex.
Disclosure of Invention
The utility model aims to solve the defects of the prior art, provides a narrow-opening optical system and an LED module thereof, and can effectively solve the problems of the conventional narrow-opening module.
The utility model is realized by the following technical scheme:
the narrow-opening optical system comprises a narrow-opening lens, a cut-off line baffle, a beam shaping element and a light source, wherein the beam shaping element is arranged in front of the light source, the narrow-opening lens is arranged in front of the beam shaping element, and the cut-off line baffle is arranged between the narrow-opening lens and the beam shaping element; the light beam shaping element comprises a first light beam shaping piece, the light source comprises a first LED light source, the first LED light source is arranged at the rear of the first light beam shaping piece, light rays emitted by the first LED light source are emitted through the adjustment of the first light beam shaping piece, a first light beam with a cut-off line is formed through shielding of the cut-off line baffle, and the first light beam passes through the narrow-opening lens to form a dipped beam.
Further, according to the narrow-opening optical system of the present utility model, the narrow-opening lens has a size of 10 to 20mm in the Y direction and a size of 180 to 100mm in the X direction.
Further, according to the narrow-opening optical system of the present utility model, the first beam shaping member is a single piece, and includes a plurality of optical units, which are a first optical unit for homogenizing the light type distribution, a second optical unit for increasing the width of the light type distribution, and a third optical unit for increasing the light distribution brightness of the light type center region, respectively; the second optical unit and the third optical unit are symmetrically arranged on two sides of the first optical unit, and the third optical unit is positioned on the outer side of the second optical unit; the first LED light source comprises a corresponding number of LED luminous particles, one LED luminous particle corresponds to one optical unit, the end face of the optical unit, which faces the LED luminous particles, is a light incident surface, the light incident surface is used for receiving light rays emitted by the LED luminous particles, the end face of the optical unit, which faces the narrow-opening lens, is a light emergent surface, and the light emergent surface is used for emitting the light rays.
Further, according to the narrow-opening optical system of the present utility model, the light-emitting surface of the first optical unit facing the narrow-opening lens is a concave structure of a vertical bar, and the concave structure of the vertical bar is used for homogenizing light type distribution; the light emergent surface of the second optical unit facing the narrow-opening lens is an inclined curved surface with a high inner side and a low outer side, and the inclined curved surface is used for increasing the light type distribution width; the light emergent surface of the third optical unit, which faces the narrow-opening lens, is of a prism surface structure, and the prism surface structure is used for increasing light distribution brightness of a light type central area.
Further, according to the narrow-aperture optical system of the present utility model, the first optical unit is provided with an auxiliary surface extending downward toward the bottom of the light-emitting surface of the narrow-aperture lens, and the auxiliary surface is used for providing complementary light to the iii region of the low beam light pattern.
Further, according to the narrow-opening optical system of the present utility model, the first beam shaping member includes three first optical units arranged in a straight line, the bottoms of the first optical units located at both sides are provided with downward convex structures, the convex structures enable the first optical units located at both sides to form the auxiliary surface extending downward at the bottom of the light-emitting surface facing the narrow-opening lens, and the auxiliary surface is used for providing complementary light to the iii region of the low beam light.
Further, according to the narrow-opening optical system of the present utility model, the third optical unit is rotated toward the center position by an angle of 10 to 18 degrees.
Further, according to the narrow-opening optical system of the present utility model, a chamfer for demolding after rotation of the third optical unit is provided on a side of the third optical unit close to the second optical unit.
Further, according to the narrow-opening optical system of the present utility model, the beam shaping element further includes a second beam shaping member, the light source further includes a second LED light source, the second LED light source is disposed behind the second beam shaping member, the second LED light source emits light to be adjusted by the second beam shaping member to emit a second light beam, and the second light beam forms a high beam pattern through the narrow-opening lens or the second light beam and the first light beam form a high beam pattern through the narrow-opening lens.
An LED module comprising a narrow opening optical system as described above.
The utility model has simple structure and convenient and quick installation, avoids a plurality of reflecting bowls to carry out multiple reflection through the beam shaping element, and has more narrow and long light-emitting surface lamplight with narrow opening on the premise of not increasing the cost and the complexity of the system; the first beam shaping piece comprises a first optical unit for homogenizing the light type distribution, a second optical unit for increasing the width of the light type distribution and a third optical unit for increasing the light distribution brightness of the light type central area, and the low beam light type is optimized through the first beam shaping piece; and the complementary light is provided by an auxiliary surface arranged on the first optical unit and opposite to the III region of the dipped beam type, so that the high-quality dipped beam type is obtained.
Drawings
Fig. 1 is a schematic perspective view of a narrow-opening optical system according to an embodiment of the utility model.
Fig. 2 is an enlarged view of the beam shaping element and the light source section of fig. 1.
Fig. 3 is a rear structural schematic view of fig. 2.
Fig. 4 is a schematic perspective view of a first beam shaping member according to the present utility model.
Fig. 5 is a rear view of the first beam shaper and the first LED light source of the present utility model.
Fig. 6 is a transverse cross-sectional view of fig. 5.
Fig. 7 is a schematic perspective view of a narrow-opening optical system according to a second embodiment of the present utility model.
In the figure:
a narrow-opening lens 1, a cut-off line baffle 2, a beam shaping element 3, a first beam shaping member 31, a first optical unit 311, a second optical unit 312, a third optical unit 313, a chamfer 3131, a second beam shaping member 32, a light source 4, a first LED light source 41, LED light emitting particles 411, a second LED light source 42, a vertical bar concave structure 5, a prism face structure 6, an inclined curved surface 7, a convex structure 8, an auxiliary face 9, and a narrow-opening optical system 10.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1-6, an LED module includes a narrow-opening optical system 10, where the narrow-opening optical system 10 is a narrow-opening optical system according to the present utility model, and the narrow-opening optical system 10 may provide a low beam function or a high beam function.
Further, the narrow-opening optical system 10 includes a narrow-opening lens 1, a cutoff line barrier 2, a beam shaping element 3, and a light source 4, the narrow-opening lens 1 having a size of 10 to 20mm in the Y direction; the light source 4 includes a first LED light source 41 and a second LED light source 42, the first LED light source 41 being disposed above the second LED light source 42; the beam shaping element 3 comprises a first beam shaping element 31 and a second beam shaping element 32, the first beam shaping element 31 being arranged above the second beam shaping element 32; the first LED light source 41 is disposed behind the first beam shaper 31, and the second LED light source 42 is disposed behind the second beam shaper 32; the narrow opening lens 1 is arranged in front of the beam shaping element 3; the cut-off line baffle 2 is arranged between the narrow opening lens 1 and the beam shaping element 3; the first LED light source 41 emits light which is adjusted to emit by the first beam shaping member 31 and is shielded by the cutoff line baffle 2 to form a first light beam with a cutoff line, which is formed in a low beam pattern by the narrow opening lens 1. The second LED light source 42 emits light which is adjusted by the second beam shaping member 32 to form a second light beam, and the second light beam forms a high beam pattern by the narrow opening lens 1. The first beam uniformity, brightness and width are better by adjusting the light emitted by the first LED light source 41 through the first beam shaping member 31. The second beam shaping member 32 is used for adjusting the light emitted by the second LED light source 42, so that the uniformity, brightness and width of the obtained second beam are better, and the optical quality of the narrow-opening optical system 10 is further improved. The LED module using the narrow-opening optical system 10 avoids multiple reflection by arranging a plurality of reflecting bowls through the beam shaping element 3, and has a narrow-opening light-emitting surface light with a longer length on the premise of not increasing the system cost and the structure complexity. Specifically, the narrow-opening lens 1 is made of glass or silica gel, the size of the narrow-opening lens 1 in the Y direction is 10-20mm, and the size in the X direction is 100-180mm; the first LED light source 41 and the second LED light source 42 are simultaneously arranged on the substrate, and are installed on the heat dissipation seat through the substrate, so that the installation is relatively convenient and quick. The beam shaping element 3 is a split piece, the first beam shaping piece 31 and the second beam shaping piece 32 are relatively independent, mounting feet are arranged on the first beam shaping piece 31 and the second beam shaping piece 32, and the first beam shaping piece 31 and the second beam shaping piece are mounted on the heat dissipation seat through the mounting feet and are positioned in front of the light source 4, so that the installation is relatively convenient and quick; the narrow-opening lens 1 is arranged on the lens bracket, is arranged on the heat dissipation seat through the lens bracket, and the stop line baffle 2 is arranged on the lens bracket and is positioned between the narrow-opening lens 1 and the beam shaping element 3, so that the installation is convenient and quick; of course, those skilled in the art understand that the cutoff baffle 2 may also be mounted on the heat sink without any particular limitation herein; the whole LED module is convenient and quick to install all parts.
When the low beam function is required to be provided, the light provided by the first LED light source 41 is adjusted to be emitted by the first beam shaping member 31, and a first light beam with a cutoff line is formed by the cutoff line baffle 2, and the first light beam forms a low beam through the narrow opening lens 1; when the high beam function is required to be provided, only the second LED light source 42 can be operated, and the light provided by the second LED light source 42 is adjusted to be emitted by the second beam shaping member 32 to form a second light beam, and the second light beam forms a high beam type through the narrow opening lens 1. Of course, those skilled in the art will understand that when the high beam function is required to be provided, the first LED light source 41 and the second LED light source 42 may be operated simultaneously, and the light provided by the second LED light source 42 is adjusted to be emitted through the second beam shaping member 32 to form a second light beam, and the second light beam and the first light beam form the high beam through the narrow opening lens 1.
Further, the first beam shaping member 31 is an integral member and includes a plurality of optical units, which are a first optical unit 311 for homogenizing the light pattern distribution, a second optical unit 312 for increasing the width of the light pattern distribution, and a third optical unit 312 for increasing the light distribution brightness of the light pattern center region; the second optical unit 312 and the third optical unit 313 are symmetrically disposed at both sides of the first optical unit 311, and the third optical unit 313 is located at the outer side of the second optical unit 312; the first LED light source 41 includes a corresponding number of LED light emitting particles 411, one LED light emitting particle 411 corresponds to one optical unit, the end face of the optical unit facing the LED light emitting particle 411 is a light incident surface, the light incident surface is used for receiving light emitted by the LED light emitting particle 411, the end face of the optical unit facing the narrow-opening lens 1 is a light emitting surface, and the light emitting surface is used for emitting light. Specifically, the light exit surface of the first optical unit 311 facing the narrow-opening lens 1 is a concave vertical structure 5, and the concave vertical structure 5 is used for homogenizing light distribution; the light-emitting surface of the second optical unit 312 facing the narrow-opening lens 1 is an inclined curved surface 7 with a high inside and a low outside, and the inclined curved surface 7 is used for increasing the light type distribution width; the light-emitting surface of the third optical unit 313 facing the narrow-opening lens 1 is a prism surface structure 6, and the prism surface structure 6 is used for increasing the light distribution brightness of the light type central area. The light emitted by the first LED light source 41 is adjusted through the first beam shaping member 31, so that the problems that the distribution width of the light pattern of the low beam light obtained through the narrow-opening lens 1 is insufficient, the distribution brightness of the light pattern center area is insufficient, and light spots exist in the light pattern are avoided, and the quality of the low beam light is further improved.
In order to prevent the eight-point requirement in the low beam iii region from failing to meet the low beam rule requirement, the first optical unit 311 is provided with a downward extending auxiliary surface 9 at the bottom of the light exit surface facing the narrow aperture lens 1, and the auxiliary surface 9 is used for providing the complementary light to the low beam iii region. In this embodiment, the first beam shaping member 31 includes three first optical units 311 arranged in a straight line, two second optical units 312 and two third optical units 313, the bottoms of the first optical units 311 located at two sides are provided with downward protruding structures 8, the protruding structures 8 enable the first optical units 311 located at two sides to form an auxiliary surface 9 extending downward at the bottom of the light emitting surface facing the narrow-opening lens 1, and the auxiliary surface 9 is used for providing complementary light to the iii region of the dipped beam. The auxiliary surfaces 9 are arranged on the first optical units 311 arranged in a straight line shape, so that excessive light provided by the auxiliary surfaces 9 can be prevented from being too much, the situation that the brightness of the III area is too bright is avoided, and the quality of the light type is further improved.
In order to improve the effective utilization of light, the third optical unit 313 is rotated toward the center position by an angle of 10-18 degrees. In addition, in order to meet the requirement of the injection molding angle of the mold, a chamfer 3131 is disposed on one side of the third optical unit 313 near the second optical unit 312, and the chamfer 3131 is used for good mold stripping after the third optical unit 313 rotates, i.e. the part of the mold is not easy to be stripped, and the part capable of being stripped is remained.
Examples
Unlike the first embodiment, the narrow-opening optical system 10 provides only a low beam function and does not provide a high beam function, as shown in fig. 7. Specifically, the light source 4 comprises a first LED light source 41, the beam shaping element 3 comprises a first beam shaping member 31, the first LED light source 41 being arranged behind the first beam shaping member 31; the first beam shaping member 31 adjusts and emits the light emitted from the first LED light source 41 to obtain a first light beam with better uniformity, brightness and width, which is blocked by the cut-off line baffle 2 to form a first light beam with a cut-off line, and which is formed into a low beam pattern by the narrow-opening lens 1.
Claims (10)
1. The narrow-opening optical system is characterized by comprising a narrow-opening lens, a cut-off line baffle, a beam shaping element and a light source, wherein the beam shaping element is arranged in front of the light source, the narrow-opening lens is arranged in front of the beam shaping element, and the cut-off line baffle is arranged between the narrow-opening lens and the beam shaping element; the light beam shaping element comprises a first light beam shaping piece, the light source comprises a first LED light source, the first LED light source is arranged at the rear of the first light beam shaping piece, light rays emitted by the first LED light source are emitted through the adjustment of the first light beam shaping piece, a first light beam with a cut-off line is formed through shielding of the cut-off line baffle, and the first light beam passes through the narrow-opening lens to form a dipped beam.
2. A narrow-opening optical system according to claim 1, characterized in that: the size of the narrow opening lens in the Y direction is 10-20mm, and the size in the X direction is 180-100mm.
3. A narrow-opening optical system according to claim 2, characterized in that: the first beam shaping piece is an integral piece and comprises a plurality of optical units, wherein the optical units are a first optical unit for homogenizing light type distribution, a second optical unit for increasing the width of the light type distribution and a third optical unit for increasing the light distribution brightness of a light type central area; the second optical unit and the third optical unit are symmetrically arranged on two sides of the first optical unit, and the third optical unit is positioned on the outer side of the second optical unit; the first LED light source comprises a corresponding number of LED luminous particles, one LED luminous particle corresponds to one optical unit, the end face of the optical unit, which faces the LED luminous particles, is a light incident surface, the light incident surface is used for receiving light rays emitted by the LED luminous particles, the end face of the optical unit, which faces the narrow-opening lens, is a light emergent surface, and the light emergent surface is used for emitting the light rays.
4. A narrow-opening optical system according to claim 3, characterized in that: the light emergent surface of the first optical unit facing the narrow-opening lens is of a vertical concave structure, and the vertical concave structure is used for homogenizing light type distribution; the light emergent surface of the second optical unit facing the narrow-opening lens is an inclined curved surface with a high inner side and a low outer side, and the inclined curved surface is used for increasing the light type distribution width; the light emergent surface of the third optical unit, which faces the narrow-opening lens, is of a prism surface structure, and the prism surface structure is used for increasing light distribution brightness of a light type central area.
5. A narrow-opening optical system according to claim 3, characterized in that: the first optical unit is provided with an auxiliary surface extending downwards at the bottom of the light emitting surface facing the narrow-opening lens, and the auxiliary surface is used for providing complementary light for the III region of the dipped beam type.
6. A narrow-opening optical system according to claim 5, wherein: the first beam shaping piece comprises three first optical units which are arranged in a straight line shape, downward protruding structures are arranged at the bottoms of the first optical units on two sides, the protruding structures enable the first optical units on two sides to form auxiliary surfaces which extend downwards towards the bottoms of light emitting surfaces of the narrow-opening lenses, and the auxiliary surfaces are used for providing complementary light rays for a III region of a dipped beam.
7. A narrow-opening optical system according to claim 3, characterized in that: the third optical unit is rotated toward the center position by an angle of 10-18 degrees.
8. A narrow-opening optical system according to claim 7, wherein: and one side of the third optical unit, which is close to the second optical unit, is provided with a chamfer surface, and the chamfer surface is used for demolding after the third optical unit rotates.
9. A narrow-opening optical system according to claim 2, characterized in that: the light beam shaping element further comprises a second light beam shaping piece, the light source further comprises a second LED light source, the second LED light source is arranged at the rear of the second light beam shaping piece, light rays emitted by the second LED light source are adjusted by the second light beam shaping piece to be emitted out to form a second light beam, and the second light beam passes through the narrow-opening lens to form a high beam type or the second light beam and the first light beam pass through the narrow-opening lens to form a high beam type.
10. An LED module comprising the narrow opening optical system of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321975444.8U CN220249736U (en) | 2023-07-26 | 2023-07-26 | Narrow-opening optical system and LED module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321975444.8U CN220249736U (en) | 2023-07-26 | 2023-07-26 | Narrow-opening optical system and LED module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220249736U true CN220249736U (en) | 2023-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321975444.8U Active CN220249736U (en) | 2023-07-26 | 2023-07-26 | Narrow-opening optical system and LED module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220249736U (en) |
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2023
- 2023-07-26 CN CN202321975444.8U patent/CN220249736U/en active Active
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