CN216202807U - Navigation mark lamp optical device - Google Patents
Navigation mark lamp optical device Download PDFInfo
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- CN216202807U CN216202807U CN202122555151.1U CN202122555151U CN216202807U CN 216202807 U CN216202807 U CN 216202807U CN 202122555151 U CN202122555151 U CN 202122555151U CN 216202807 U CN216202807 U CN 216202807U
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Abstract
The utility model relates to an optical device of a beacon light, which comprises a plurality of light-emitting units which are uniformly distributed along the circumference, wherein each light-emitting unit comprises two LED lamp beads with different colors and a rotary combined curved lens; the rotary combined curved lens comprises a lens body, and the lens body is of a semi-revolution body structure which is symmetrical up and down; the periphery of the lens body is provided with a circular ring refraction surface located in the middle and conical refraction surfaces located on two sides of the circular ring refraction surface, two ends of the lens body are provided with concave rotary parabolic reflection surfaces, the conical refraction surfaces and the rotary parabolic reflection surfaces form a triangular wing structure, and the inner side of the lens body is provided with a lens cavity used for placing LED lamp beads. The optical device of the beacon light integrates different colors of light, and can control the light-emitting combination of the different colors of light as required; the light-emitting range is 360 degrees in the horizontal direction and small in the vertical direction, so that the irradiation angle and pointing deviation of the emergent light beams of the LED lamp beads with different colors can be reduced.
Description
Technical Field
The utility model relates to the technical field of navigation mark lamp optics, in particular to a navigation mark lamp optical device.
Background
Beacon lights are a type of traffic light mounted on certain beacons to ensure safe travel of a ship at night. It emits light at night according to the specified light color and flash frequency, and the emergent light beam must reach the specified irradiation angle and visible distance.
According to the type of the adopted light source, the development of the beacon light is in the development stages of a kerosene light beacon light, an incandescent light beacon light, a Light Emitting Diode (LED) beacon light, an integrated light source solar integrated beacon light and a solar integrated intelligent beacon light, and the Light Emitting Diode (LED) is mostly adopted as the light source of the current beacon light.
According to different platforms, the types of navigation mark lamps can be divided into fixed lamp marks, lamp buoys, light boats and lighthouses; the fixed light beacon, the light buoy and the light boat are beacons for navigation and warning, and the lighthouse sends out recognizable signals at night on the sea for the position determination of the boat and danger warning for the boat.
The navigation mark lamps can be divided into side navigation mark lamps, left and right navigation mark lamps and bridge and culvert navigation mark lamps according to different conditions and navigation instructions. Navigation identification is carried out on different conditions through different colors and flash frequencies, for example, a navigation mark lamp can emit green single-flash to identify one side of the left bank of a river channel, and the navigation mark lamp can emit red single-flash to identify one side of the right bank of the river channel; lane crossings and the like are identified by flashing white/green lights from the beacon lights.
For different use conditions, the beacon light is often required to emit different colors of light so as to give different navigation instructions, and the light with different colors is made into independent light devices, so that the waste of cost and resources is caused; if adopt polychrome LED lamp pearl as the light source, because its luminous chip is formed by the luminous chip concatenation of different colours, after the light of every colour passes through optical device, because the luminous chip position of different colours is different, can cause the deviation that different colours emergent beam shines angle and directive, and this deviation can exceed the scope that the index required.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an optical device of a beacon light with high optical efficiency and low light energy loss, which can reduce the irradiation angle and pointing deviation of the emergent light beams of the LED lamp beads with different colors.
The utility model is realized by adopting the following scheme: an optical device of a beacon light comprises a plurality of light-emitting units which are uniformly distributed along the circumference, wherein each light-emitting unit comprises two LED lamp beads with different colors and a rotary combined curved lens; the rotary combined curved lens comprises a lens body, and the lens body is of a semi-revolution body structure which is symmetrical up and down; the periphery of the lens body is provided with a circular ring refraction surface located in the middle and conical refraction surfaces located on two sides of the circular ring refraction surface, two ends of the lens body are provided with concave rotary parabolic reflection surfaces, the conical refraction surfaces and the rotary parabolic reflection surfaces form a triangular wing structure, and the inner side of the lens body is provided with a lens cavity used for placing LED lamp beads.
Furthermore, the annular refraction surface comprises a central annular surface and annular ring surfaces positioned on two sides of the central annular surface; the conical refraction surface comprises a first annular conical surface, a second annular conical surface and a third annular conical surface which are arranged from inside to outside in sequence.
Furthermore, the curvature radii of the central annular surface and the annular surface of the annular belt are the same but the positions of the circle centers are different, and the curvature radii of the central annular surface and the annular surface of the annular belt are both 7.29 mm; the height of the central annular surface is 9.18mm, and the height of the annular surface of the annular belt is 2.58 mm.
Further, the projection length of the vertical section line segment of the first annular conical surface on the rotating shaft is 1.07mm, and the projection length on the optical axis is 0.3 mm; the projection length of the vertical section line segment of the second annular conical surface on the rotating shaft is 2.8mm, and the projection length on the optical axis is 1.02 mm; the projection length of the vertical section line segment of the third annular conical surface on the rotating shaft is 2.13mm, and the projection length on the optical axis is 1.03 mm.
Further, the vertical section curve of the rotating parabolic reflecting surface conforms to a quadratic parabolic curve equation: y is2=23.987x。
Further, the projection length of the vertical section curve of the rotating parabolic reflecting surface on the rotating shaft is 8.05mm, and the projection length on the optical axis is 13.73 mm; the height of the lens body is 48.94 mm.
Furthermore, the optical device is of a double-layer structure, each layer is provided with 6 light-emitting units which are uniformly distributed along the circumference, two LED lamp beads of each light-emitting unit on the upper layer are respectively a yellow light LED lamp bead and a red light LED lamp bead, and two LED lamp beads of each light-emitting unit on the lower layer are respectively a white light LED lamp bead and a green light LED lamp bead.
Compared with the prior art, the utility model has the following beneficial effects: the optical device of the beacon light integrates different colors of light, and can control the light-emitting combination of the different colors of light as required; the light-emitting range is 360 degrees horizontally and small vertically, the light beams are collimated in the vertical direction, the light-emitting device can emit light at a large angle in the horizontal direction, the optical efficiency is high, and the light energy loss is small; the LED lamp beads with different colors can be reduced in the irradiation angle and pointing deviation of the emergent light beams.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a perspective view of a light emitting unit in an embodiment of the present invention;
FIG. 5 is a vertical sectional view of a rotating compound curved lens of a light emitting unit in an embodiment of the present invention;
FIG. 6 is a graph of simulated coordinates of a rotating compound curved lens in an embodiment of the utility model;
FIG. 7 is a vertical ray simulation of a rotationally combined curved lens according to an embodiment of the utility model;
FIG. 8 is a horizontal ray simulation of a rotationally combined curved lens according to an embodiment of the utility model;
FIG. 9 is a vertical ray simulation of an optical device according to an embodiment of the present invention;
FIG. 10 is a horizontal ray simulation of an optical device according to an embodiment of the present invention;
the reference numbers in the figures illustrate: 10-LED lamp beads, 101-yellow light LED lamp beads, 102-red light LED lamp beads, 103-white light LED lamp beads, 104-green light LED lamp beads, 11-circular ring refraction surfaces, 111-central circular ring surfaces, 112-central circular ring surfaces, 12-rotating combined curved lens, 121-rotating parabolic reflection surfaces, 122-conical refraction surfaces, 13-internal transmission surfaces, 131-horizontal transmission end surfaces and 132-arc transmission side surfaces.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 to 10, an optical device for a beacon light includes a plurality of light-emitting units uniformly distributed along a circumference, each light-emitting unit includes two LED lamp beads 10 with different colors and a rotating combined curved lens 12; the rotating combined curved lens 12 comprises a lens body, the lens body is of a vertically symmetrical semi-revolution body structure, and a rotating shaft of the rotating combined curved lens is positioned on a plane where the lamp beads are positioned; the periphery of the lens body is provided with a circular ring refraction surface 11 positioned in the middle and conical refraction surfaces 122 positioned on two sides of the circular ring refraction surface, two ends of the lens body are provided with concave rotating parabolic reflection surfaces 121, the conical refraction surfaces 122 and the rotating parabolic reflection surfaces 121 form a triangular wing structure, and the inner side of the lens body is provided with a lens cavity for placing an LED lamp bead; the rotary combined curved lens carries out light distribution of a small beam angle on light rays emitted by the LED lamp beads in the vertical direction, collimates the light beams in the vertical direction, keeps light emission at a large angle in the horizontal direction, can transmit the light rays emitted by the front and the side surfaces of the LED lamp beads to an effective angle range, and is high in optical efficiency and small in light energy loss; the light-emitting range of the light-emitting device is 360 degrees horizontally, and the angle range of the light-emitting region with small vertical angle is-4 degrees to + 4 degrees; the light emitted by the light source is distributed in the disc-shaped light emitting area through the rotating combined curved lens, and the rotating combined curved lens can reduce the irradiation angles and pointing deviations of the emergent light beams of the LED lamp beads with different colors.
In this embodiment, the optical device is a double-layer structure, each layer has 6 light-emitting units uniformly distributed along the circumference, two LED lamp beads of each light-emitting unit on the upper layer are respectively a yellow light LED lamp bead and a red light LED lamp bead, and two LED lamp beads of each light-emitting unit on the lower layer are respectively a white light LED lamp bead and a green light LED lamp bead.
In this embodiment, the circular ring refraction surface 11 includes a central circular ring surface 111 and ring-shaped circular ring surfaces 112 located at two sides of the central circular ring surface, and divides the spatial light beam emitted by the LED lamp bead into different ring zones, and performs light distribution collimation on the light beams emitted by the LED lamp bead in the different ring zones through a combined rotation spatial curve; the conical refraction surface 122 comprises a first annular conical surface, a second annular conical surface and a third annular conical surface which are sequentially arranged from inside to outside, the rotating parabolic reflection surface collimates the side light emitted by the LED lamp bead by utilizing the total reflection principle, the vertical cross section of each annular of the conical refraction surface is a straight line segment with an included angle different from that of a rotating shaft, and the conical refraction surfaces of different annular zones further correct the light beam after the rotating parabolic reflection surface collimates and reflects, so that the light beam on the side surface of the lamp bead is collimated to a required small-angle range.
In this embodiment, the central torus 111 and the annular torus 112 have the same radius of curvature but different circle center positions, and both have a radius of curvature of 7.29 mm; the height of the central annular surface is 9.18mm, and the height of the annular surface of the annular belt is 2.58 mm; the center of the central annular surface is positioned on the optical axis; because the angles of the light beams incident into the lens are different, if the curvature radii of the lenses are the same, the angle of the collimated light beams may deviate from the expectation; therefore, different curvature radiuses are calculated and set according to the characteristics of different ring-shaped light beams, so that the angle of the light beam emitted from the front surface and collimated by the circular ring surface is kept within a required small angle range, namely-4 degrees to + 4 degrees.
In the embodiment, the projection length of the vertical section line segment of the first annular conical surface on the rotating shaft is 1.07mm, and the projection length on the optical axis is 0.3 mm; the projection length of the vertical section line segment of the second annular conical surface on the rotating shaft is 2.8mm, and the projection length on the optical axis is 1.02 mm; the projection length of the vertical section line segment of the third annular conical surface on the rotating shaft is 2.13mm, and the projection length on the optical axis is 1.03 mm.
In the present embodiment, the vertical cross-sectional curve of the rotating parabolic reflecting surface 121 conforms to the quadratic parabolic curve equation: y is2=23.987 x; the section curve of the rotating parabolic reflecting surface is a continuous parabola, and the angle ranges of the light beams in different annuluses of the side surface after being collimated by the rotating parabolic reflecting surface are inconsistent; the rotating parabolic reflecting surface reflects light rays in a certain range from the side surface emitted by the lamp bead to the conical refracting surface by utilizing the total reflection principle, and the light rays are refracted at the conical refracting surface to form a side surface collimation emergent light beam.
In the present embodiment, the projection length of the vertical section curve of the rotating parabolic reflecting surface 121 on the rotating axis is 8.05mm, and the projection length on the optical axis is 13.73 mm; the height of the lens body is 48.94 mm.
In this embodiment, the lens cavity has a semi-cylindrical structure, and the lens cavity inner surface is an inner transmission surface 13 formed by an upper horizontal transmission end surface 131 and a lower horizontal transmission end surface 131 and an arc-shaped transmission side surface 132.
In this embodiment, a transition between the conical refracting surface and the circular refracting surface is provided with a sinking groove.
Establishing a coordinate system xoy by taking a position 7.59mm away from the center of the central torus on the optical axis as a coordinate origin, as shown in fig. 6, wherein an X axis of the coordinate system xoy coincides with the optical axis, and a Y axis of the coordinate system xoy is parallel to the rotation axis of the lens body, i.e., the center O of the central torus1Coordinates (7.59, 0); circle center O of upper first ring belt ring surface2The coordinate is (5.85, 1.31), and the center O of the annular surface of the first ring belt at the lower side4The coordinates are (5.85, -1.31).
The equation of which the vertex is positioned at the origin of the coordinate system xoy is y2A parabola of =23.987x, obtained by translating the part between the straight line x =11.24 and the straight line x =24.97 (i.e. two curves AB and CD which are symmetrical up and down about the optical axis), and obtaining vertical cross-sectional curves of the rotating parabolic reflecting surfaces at the upper and lower ends after translation, wherein the curves are respectively a 'B' and C 'D', and the coordinates of each end point are shown in the following table (shown in the figure as xoy coordinate system):
the coordinates of the end points of the arcs of the vertical section curve of the central torus are shown in the following table (xoy coordinate system shown in the figure):
three line segments of the vertical section curve of the upper conical refraction surface are a line segment B' E, a line segment EF and a line segment FG respectively; three line segments of the vertical section curve of the lower conical refracting surface are a line segment D' N, a line segment NP and a line segment PQ respectively; the coordinates of the endpoints of the line segments are shown in the following table:
the intersection points R and S coordinates of the three line segments of the vertical section of the internal transmission surface are as follows:
| endpoint numbering | x | y |
| R | 7.86 | 6.11 |
| S | 7.86 | -6.11 |
The LED lamp beads are positioned in the lens cavity, the central annular surface is equivalent to a spherical lens in the vertical direction, the divergence angle of light rays emitted from the front surfaces of the LED lamp beads is compressed, and light distribution at a small beam angle is carried out on light rays emitted from the front surfaces of the lamp beads; the rotating parabolic reflecting surface totally reflects light rays emitted from the side surface of the LED lamp bead to complete preliminary small beam angle light distribution of emergent light rays from the side surface of the lamp bead, and the conical refracting surface further adjusts the angle of the totally reflected light rays to complete final small beam angle light distribution of the light rays from the side surface of the lamp bead.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the utility model discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the utility model can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (7)
1. An optical device of a navigation light, characterized in that: the LED lamp comprises a plurality of light-emitting units which are uniformly distributed along the circumference, wherein each light-emitting unit comprises two LED lamp beads with different colors and a rotary combined curved lens; the rotary combined curved lens comprises a lens body, and the lens body is of a semi-revolution body structure which is symmetrical up and down; the periphery of the lens body is provided with a circular ring refraction surface located in the middle and conical refraction surfaces located on two sides of the circular ring refraction surface, two ends of the lens body are provided with concave rotary parabolic reflection surfaces, the conical refraction surfaces and the rotary parabolic reflection surfaces form a triangular wing structure, and the inner side of the lens body is provided with a lens cavity used for placing LED lamp beads.
2. The beacon light optic apparatus of claim 1, wherein: the ring refraction surface comprises a central ring surface and ring belt ring surfaces positioned on two sides of the central ring surface; the conical refraction surface comprises a first annular conical surface, a second annular conical surface and a third annular conical surface which are arranged from inside to outside in sequence.
3. The beacon light optic apparatus of claim 2, wherein: the curvature radii of the central annular surface and the annular surface of the annular belt are the same but the circle centers of the central annular surface and the annular surface of the annular belt are different, and the curvature radii of the central annular surface and the annular surface of the annular belt are both 7.29 mm; the height of the central annular surface is 9.18mm, and the height of the annular surface of the annular belt is 2.58 mm.
4. The beacon light optic apparatus of claim 2, wherein: the projection length of the vertical section line segment of the first annular conical surface on the rotating shaft is 1.07mm, and the projection length on the optical axis is 0.3 mm; the projection length of the vertical section line segment of the second annular conical surface on the rotating shaft is 2.8mm, and the projection length on the optical axis is 1.02 mm; the projection length of the vertical section line segment of the third annular conical surface on the rotating shaft is 2.13mm, and the projection length on the optical axis is 1.03 mm.
5. The beacon light optic apparatus of claim 1, wherein: the vertical section curve of the rotating parabolic reflecting surface conforms to a quadratic parabolic curve equation: y is2=23.987x。
6. The combination revolved curved lens for a beacon light of claim 5 wherein: the projection length of the vertical section curve of the rotating parabolic reflecting surface on the rotating shaft is 8.05mm, and the projection length on the optical axis is 13.73 mm; the height of the lens body is 48.94 mm.
7. The beacon light optic apparatus of claim 1, wherein: the optical device is of a double-layer structure, each layer is provided with 6 light-emitting units which are uniformly distributed along the circumference, two LED lamp beads of each light-emitting unit on the upper layer are respectively a yellow light LED lamp bead and a red light LED lamp bead, and two LED lamp beads of each light-emitting unit on the lower layer are respectively a white light LED lamp bead and a green light LED lamp bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122555151.1U CN216202807U (en) | 2021-10-23 | 2021-10-23 | Navigation mark lamp optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122555151.1U CN216202807U (en) | 2021-10-23 | 2021-10-23 | Navigation mark lamp optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216202807U true CN216202807U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122555151.1U Active CN216202807U (en) | 2021-10-23 | 2021-10-23 | Navigation mark lamp optical device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216202807U (en) |
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2021
- 2021-10-23 CN CN202122555151.1U patent/CN216202807U/en active Active
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