CN210267070U - Illumination light distribution system of bicycle lamp and bicycle lamp - Google Patents
Illumination light distribution system of bicycle lamp and bicycle lamp Download PDFInfo
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- CN210267070U CN210267070U CN201921327431.3U CN201921327431U CN210267070U CN 210267070 U CN210267070 U CN 210267070U CN 201921327431 U CN201921327431 U CN 201921327431U CN 210267070 U CN210267070 U CN 210267070U
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- bicycle
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Abstract
The utility model provides a bicycle lamps and lanterns illumination grading system and bicycle car light, this bicycle lamps and lanterns illumination grading system includes LED light source to and the lens group. The lens group includes a converging lens and a profiled lens. The converging lens comprises a first light incident surface and a first light emergent surface. The special-shaped lens comprises a second light incident surface and a second light emergent surface. The first light-emitting surface and the second light-emitting surface corresponding to the straight-line segment adjust emergent light of the LED light source into parallel light parallel to the optical axis, and the first light-emitting surface and the second light-emitting surface corresponding to the arc-shaped segment adjust emergent light of the LED light source into divergent light far away from the optical axis. The lighting light distribution system of the bicycle lamp can enable parallel light emitted from the second light emitting surface corresponding to the straight-line segment to form a bright light spot on the ground, and divergent light emitted from the second light emitting surface corresponding to the arc-shaped segment can form a light band on the ground, so that the requirements of some countries on light spot structures can be met.
Description
Technical Field
The utility model belongs to the technical field of the lamps and lanterns grading, especially a bicycle lamp's illumination grading system and bicycle lamp.
Background
The bicycle is an indispensable vehicle in daily life of people, is used for commuting or outing, and along with low-carbon call and people's interest on health, many people begin to ride the bicycle again. Nowadays, the types of bicycles are very many, including mountain bikes, off-road bikes, and the like, each having its function. However, people often find that the bicycle cannot be ridden due to too dark days when using the street lamp, and even if the street lamp is available, the people can hardly see the road on the ground clearly. Some people can use the flashlight for illumination, but the flashlight held by one hand can cause insecurity when riding, so that the existing bicycle can be provided with the vehicle-mounted lamp arranged on the bicycle frame.
With the development of science and technology and the improvement of living standard, some countries have specific requirements on light spots formed by lamps loaded on bicycles, rather than just lighting.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a lighting and light distribution system of a bicycle lamp capable of forming a predetermined light spot and a bicycle lamp, so as to solve the above problems.
An illumination light distribution system of a bicycle lamp comprises an LED light source and a lens group arranged in the light path of the LED light source. The light source includes an optical axis. The lens group comprises a convergent lens and a special-shaped lens arranged in the light-emitting direction of the convergent lens. The converging lens comprises a first light incident surface and a first light emergent surface. The first light-emitting surface is a revolution surface taking the optical axis as a central axis. The contour line of the first light-emitting surface on the section along the optical axis is an arc with positive curvature relative to the LED light source. The special-shaped lens comprises a second light incident surface and a second light emergent surface. The contour line of the second light incident surface on one of the cross sections along the optical axis includes a straight line segment and an arc segment connected with the straight line segment. The second light incident surface is formed by scanning the straight line sections and the arc sections along a perpendicular line perpendicular to the arrangement direction of the straight line sections and the arc sections and a plane formed by the optical axis. And the contour line of the second light-emitting surface on the section along the optical axis and parallel to the arrangement direction of the straight line section and the arc section is an arc line. The second light emitting surface is formed by scanning the arc-shaped line along a perpendicular line perpendicular to the arrangement direction of the straight line sections and the arc-shaped sections and a plane formed by the optical axis. In the direction of the optical axis, the emergent light of the LED light source is adjusted to be parallel light parallel to the optical axis by the first emergent light surface and the second emergent light surface corresponding to the straight line section, and the emergent light of the LED light source is adjusted to be divergent light far away from the optical axis by the first emergent light surface and the second emergent light surface corresponding to the arc-shaped section.
Further, the optical axis intersects and is perpendicular to the straight line segment.
Further, the LED light source and the convergent lens are arranged at an interval, the convergent lens and the special-shaped lens are arranged at an interval, and the convergent lens is arranged between the LED light source and the special-shaped lens.
Further, a dividing line is formed when the straight line segments and the arc segments are scanned along a perpendicular line perpendicular to the arrangement direction of the straight line segments and the arc segments and a plane formed by the optical axis, and the dividing line is parallel to a horizontal plane in use.
Further, when the linear section scanning light source is used, the second light incident surface formed by the arc-shaped section scanning is located below the second light incident surface formed by the linear section scanning.
Further, on a section along the optical axis and the arrangement direction of the straight line segment and the arc segment, the arc line takes the optical axis as a symmetry axis.
Further, the optical axis passes through a central axis of the condenser lens in a light-emitting direction along the condenser lens.
Further, the first light incident surface is a plane.
The bicycle lamp comprises the bicycle lamp lighting light distribution system and a lamp shell used for assembling the bicycle lamp lighting light distribution system. The lamp housing comprises an outer shell and an inner shell arranged in the outer shell. The shaped lens is disposed on the housing. The light source and the converging lens are arranged on the inner shell.
Furthermore, on a cross section along the arrangement direction of the straight line segments and the arc segments and the optical axis, the first light incident surface formed by scanning the arc segments is arranged towards the ground.
Compared with the prior art, the utility model provides a lighting grading system of bicycle lamps and lanterns when opening the car light, the light that the LED light source sent at first by convergent lens convergence, special-shaped lens sets up on convergent lens's the light-emitting direction, special-shaped lens's first income plain noodles divide into two parts, is following on the cross-section of optical axis, these two parts are formed by the straightway scanning and are formed by the segmental arc scanning, simultaneously special-shaped lens's second goes out the plain noodles and is formed by an arc line scanning, the second that the straightway corresponds goes out the plain noodles with convergent lens's first play plain noodles will jointly the light adjustment that the LED light source sent is the parallel light. The second light-emitting surface corresponding to the arc-shaped section and the first light-emitting surface of the convergent lens jointly adjust the light emitted by the LED light source to be scattered away from the optical axis, so that parallel light emitted by the second light-emitting surface corresponding to the straight-line section forms a bright light spot on the ground, and scattered light emitted by the second light-emitting surface corresponding to the arc-shaped section forms a light band on the ground, and further, the requirements of some countries on the light spot structure can be met.
Drawings
Fig. 1 is an exploded schematic view of the bicycle lamp provided by the present invention.
FIG. 2 is a cross-sectional schematic view of the bicycle light of FIG. 1
FIG. 3 is a schematic view of the light path formed by the bicycle lamp of FIG. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to 3, it is a schematic structural diagram of the bicycle lamp provided by the present invention. The bicycle lamp comprises an illumination light distribution system 10 of a bicycle lamp and a lamp shell 20 used for assembling the illumination light distribution system of the bicycle lamp. It is contemplated that the bicycle lamp may also include other functional modules, such as a power module, electrical connection components, and assembly components, etc., which are well known to those skilled in the art and will not be described herein.
The lighting light distribution system 10 of the bicycle lamp comprises an LED light source 11 and a lens group 12 arranged in the light outgoing direction of the LED light source 11. The LED light source 11 can be an LED lamp bead. The LED lamp bead should be a technology known to those skilled in the art, and is also called a light emitting diode, which is a semiconductor electronic element capable of converting electric energy into light energy. It is well known to those skilled in the art that each light source should include an optical axis, which should be the guide and standard of the optical design. In the present embodiment, the LED light source 11 has an optical axis 111.
The lens group 12 includes a condenser lens 121, and a shaped lens 122 disposed in a light-emitting direction of the condenser lens 121. When assembling the LED light source 11 and the lens group 12, the LED light source 11 and the converging lens 121 should be disposed at an interval, the converging lens 121 and the special-shaped lens 122 should be disposed at an interval, and the converging lens 121 should be disposed between the LED light source 111 and the special-shaped lens 122. The converging lens 121 includes a first light incident surface 123 for receiving light from the LED light source 11, and a first light emitting surface 124 for receiving light from the first light incident surface 123. The first light incident surface 123 is a plane. When one light incident surface is a plane, the light emergent path of the light is not adjusted except the change of the light path conforming to the refraction law. The first light emitting surface 124 is a surface of revolution having the optical axis 111 as a central axis, so that the optical axis 111 passes through the central axis of the converging lens 121 in the light emitting direction along the converging lens 121. . The contour line of the first light exiting surface 124 on the cross section along the optical axis 111 is an arc shape having a positive curvature with respect to the LED light source 11. The first light emitting surface 124 performs a first adjustment on the emitting light of the LED light source 11, and since the contour line of the first light emitting surface 124 is an arc shape with a positive curvature relative to the LED light source 11, it converges the emitting light of the LED light source 11. The degree of convergence needs to be designed in conjunction with the shaped lens 122, which will be described in detail below.
The special-shaped lens 122 includes a second light incident surface 125 for receiving the light emitted from the first light incident surface 124, and a second light incident surface 126 for receiving the light emitted from the second light incident surface 125. The contour of the second incident surface 125 in one of the cross sections along the optical axis 111 includes a straight line segment 127 and an arc segment 128 connected to the straight line segment 127. The second light incident surface 125 is formed by scanning the straight line segment 127 and the arc segment 128 along a perpendicular line perpendicular to the arrangement direction of the straight line segment 127 and the arc segment 128 and a plane formed by the optical axis 111. Also, therefore, a dividing line 129 is formed when the straight line segment 127 and the arc segment 128 are scanned along a perpendicular line perpendicular to the arrangement direction of the straight line segment 127 and the arc segment 128 and the plane formed by the optical axis 111, and the dividing line 129 should be parallel to a horizontal plane in use. The contour line of the second light emitting surface 126 on the cross section along the optical axis 111 and parallel to the arrangement direction of the straight line segment 127 and the arc segment 128 is an arc line. The second light exiting surface 126 is formed by scanning the arc line along a perpendicular line perpendicular to the arrangement direction of the straight line segment 127 and the arc segment 128 and the plane formed by the optical axis 111. Meanwhile, in the cross section along the optical axis 111 and the arrangement direction of the straight line segment 127 and the arc segment 128, the arc line takes the optical axis 111 as a symmetry axis, so that the second light incident surface 125 is beneficial to adjusting the light outgoing amount of different formed light spots. The shape of the second light emitting surface 126 is specifically defined by the following requirement, that is, in the direction along the optical axis 111, the first light emitting surface 123 and the second light emitting surface 126 corresponding to the straight line segment 127 adjust the light emitted from the LED light source 11 to be parallel light parallel to the optical axis 111, and the first light emitting surface 123 and the second light emitting surface 123 corresponding to the arc-shaped segment 128 adjust the light emitted from the LED light source 11 to be divergent light away from the optical axis 11. In order to adjust the light output amount of the second light emitting surface 126 corresponding to the straight line segment 127, the optical axis 111 intersects and is perpendicular to the straight line segment 127.
The lamp envelope 20 comprises an outer envelope 21 and an inner envelope 22 arranged within the outer envelope 21. The specific shape of the housing 21 should be set according to actual needs, and is generally cylindrical, and in this embodiment, the housing 21 is cylindrical with an elliptical cross section. The shaped lens 122 is fixedly disposed on the housing 21 by various methods, such as screwing, fixing with a fastener, or gluing. In this embodiment, the housing 21 and the shaped lens 122 are provided with mutually coupled steps, and then the housing 21 and the shaped lens 122 are fixed by glue. The inner case 22 is used for assembling the LED light source 11 and the condensing lens 121. Therefore, the inner casing 22 is a circular cylinder structure, one side of which is used for assembling the LED light source 11, and the other side of which is used for assembling the converging lens 121, and the assembling manner should be the prior art, and will not be described herein again.
In use, the second light incident surface 125 formed by scanning the arc segment 128 should be located below the second light incident surface 125 formed by scanning the straight line segment 127. Therefore, in a cross section along the arrangement direction of the straight line segment 127 and the arc segment 128 and the optical axis 111, the first light incident surface 125 formed by scanning the arc segment 128 is disposed toward the ground.
Compared with the prior art, the utility model provides a lighting light distribution system of bicycle lamps and lanterns, when opening the car light, the light that LED light source 11 sent at first by convergent lens 121 converges, special-shaped lens 122 sets up on convergent lens 121's the light-emitting direction, special-shaped lens 121's first income plain noodles 125 is divided into two parts, follows on the cross-section of optical axis 111, these two parts are formed by straightway 127 scanning and are formed by arc 128 scanning, simultaneously special-shaped lens 122's second goes out the plain noodles 126 and is formed by an arc line scanning, straightway 127 corresponds the second go out the plain noodles 126 with convergent lens 121's first play plain noodles 124 will jointly the light adjustment that LED light source 11 sent is the parallel light. The second light emitting surface 126 corresponding to the arc-shaped section 128 and the first light emitting surface 124 of the converging lens 121 together adjust the light emitted by the LED light source 111 to diverge away from the optical axis 111, so that the parallel light emitted from the second light emitting surface 126 corresponding to the straight line section 127 forms a bright light spot on the ground, and the divergent light emitted from the second light emitting surface 126 corresponding to the arc-shaped section 128 forms a light band on the ground, thereby meeting the requirements of some countries on the structure of the light spot.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (10)
1. The utility model provides a bicycle lamps and lanterns illumination grading system which characterized in that: the illumination light distribution system of the bicycle lamp comprises an LED light source and a lens group arranged in the light path of the LED light source, wherein the light source comprises an optical axis, the lens group comprises a convergent lens and a special-shaped lens arranged in the light emitting direction of the convergent lens, the convergent lens comprises a first light incoming surface and a first light outgoing surface, the first light outgoing surface is a revolution surface taking the optical axis as a central axis, the contour line of the first light outgoing surface on the section along the central axis is an arc shape which is positive curvature relative to the light source, the special-shaped lens comprises a second light incoming surface and a second light outgoing surface, the contour line of the second light incoming surface on one of the sections along the optical axis comprises a straight line segment and an arc segment connected with the straight line segment, the second light incoming surface is formed by scanning the straight line section and the arc-shaped section along a perpendicular line perpendicular to the arrangement direction of the straight line section and the arc-shaped section and a plane formed by the optical axis, the contour line of the second light outgoing surface on a cross section along the optical axis and a cross section parallel to the arrangement direction of the straight line section and the arc-shaped section is an arc line, the second light outgoing surface is formed by scanning the arc line along a perpendicular line perpendicular to the arrangement direction of the straight line section and the plane formed by the optical axis, the emergent light of the LED light source is adjusted to be parallel light parallel to the optical axis by the first light outgoing surface and the second light outgoing surface corresponding to the straight line section along the optical axis direction, and the emergent light of the LED light source is adjusted to be divergent light far away from the optical axis by the first light outgoing surface and the second light outgoing surface corresponding to the arc-.
2. The illumination light distribution system of a bicycle light fixture of claim 1, wherein: the optical axis intersects and is perpendicular to the straight line segment.
3. The illumination light distribution system of a bicycle light fixture of claim 1, wherein: the LED light source and the convergent lens are arranged at intervals, the convergent lens and the special-shaped lens are arranged at intervals, and the convergent lens is arranged between the LED light source and the special-shaped lens.
4. The illumination light distribution system of a bicycle light fixture of claim 1, wherein: when the straight line segments and the arc segments are scanned along a perpendicular line perpendicular to the arrangement direction of the straight line segments and the arc segments and a plane formed by the optical axis, a boundary line is formed, and when the optical scanning device is used, the boundary line is parallel to a horizontal plane.
5. The illumination light distribution system of a bicycle light fixture of claim 4, wherein: when the linear section scanning light source is used, the second light incident surface formed by the arc section scanning is positioned below the second light incident surface formed by the linear section scanning.
6. The illumination light distribution system of a bicycle light fixture of claim 1, wherein: and on the section along the arrangement direction of the optical axis and the straight line section and the arc section, the arc line takes the optical axis as a symmetry axis.
7. The illumination light distribution system of a bicycle light fixture of claim 1, wherein: the optical axis passes through a central axis of the converging lens in a light exit direction along the converging lens.
8. The illumination light distribution system of a bicycle light fixture of claim 1, wherein: the first light incident surface is a plane.
9. A bicycle lamp, its characterized in that: the bicycle lamp comprises an illumination light distribution system of the bicycle lamp as claimed in any one of claims 1 to 8, and a lamp housing for assembling the illumination light distribution system of the bicycle lamp, wherein the lamp housing comprises an outer shell and an inner shell arranged in the outer shell, the profiled lens is arranged on the outer shell, and the light source and the converging lens are arranged on the inner shell.
10. The bicycle light of claim 9, wherein: and on the section along the arrangement direction of the straight line segment and the arc-shaped segment and the optical axis, the first light incident surface formed by scanning the arc-shaped segment is arranged towards the ground.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921327431.3U CN210267070U (en) | 2019-08-15 | 2019-08-15 | Illumination light distribution system of bicycle lamp and bicycle lamp |
| DE202020103656.4U DE202020103656U1 (en) | 2019-08-15 | 2020-06-25 | A bicycle lamp light distribution system and a bicycle lamp having such a bicycle lamp light distribution system |
| EP20182184.0A EP3778359A1 (en) | 2019-08-15 | 2020-06-25 | Bicycle light distribution system and bicycle light having such a bicycle light distribution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921327431.3U CN210267070U (en) | 2019-08-15 | 2019-08-15 | Illumination light distribution system of bicycle lamp and bicycle lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210267070U true CN210267070U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921327431.3U Expired - Fee Related CN210267070U (en) | 2019-08-15 | 2019-08-15 | Illumination light distribution system of bicycle lamp and bicycle lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210267070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375262A (en) * | 2019-08-15 | 2019-10-25 | 嘉善声光电子有限公司 | A kind of illumination light distribution system of bicycle lamp and bicycle lamp |
-
2019
- 2019-08-15 CN CN201921327431.3U patent/CN210267070U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375262A (en) * | 2019-08-15 | 2019-10-25 | 嘉善声光电子有限公司 | A kind of illumination light distribution system of bicycle lamp and bicycle lamp |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |