CN215259325U

CN215259325U - Optical element and lamp

Info

Publication number: CN215259325U
Application number: CN202120841618.6U
Authority: CN
Inventors: 杨涛; 魏彬; 朱奕光; 邹磊; 陈上钦
Original assignee: Foshan Electrical and Lighting Co Ltd
Current assignee: Foshan Electrical and Lighting Co Ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-12-21
Anticipated expiration: 2031-04-22

Abstract

The application discloses optical element and lamps and lanterns relates to the illumination field. The optical element comprises at least two lens units, and the bottom of each lens unit is provided with an accommodating cavity which is used for arranging a light-emitting piece; the lens unit is used for generating asymmetric light beams from the light emitted by the light-emitting piece; the asymmetric light beams emitted by the lens units are combined to obtain an emergent light beam in a preset irradiation range. The lamp is illuminated by the optical element. By arranging a plurality of lens units, a plurality of asymmetrical light beams can be generated, and the polarization angle of the emergent light beam of each lens unit is adjusted at the moment, so that the asymmetrical light beams with different polarization angles can be obtained. Therefore, the range of the area needing to be irradiated can be divided into a plurality of sub-irradiation areas, so that each asymmetric light beam deflects to the corresponding sub-irradiation area, and compared with the traditional illumination mode, the light is more fully and effectively utilized in the application, so that the effective utilization rate of the light-emitting piece in the lamp can be improved.

Description

Optical element and lamp

Technical Field

The present application relates to the field of lighting, and in particular, to an optical device and a lamp.

Background

In the field of lighting, such as the fishing industry, it is necessary to irradiate light of sufficient intensity in the area where the fish is caught in order to attract the fish to gather; in other industries, such as stage, etc., it is also desirable to cover the entire field with light. Therefore, to achieve this specified range of illumination intensity, high powered lamps are typically used to illuminate to meet the light requirements at a distance. Taking the fishing industry as an example, a high-power metal halide lamp and a part of LED fishing lamps are adopted for irradiation; however, the metal halide lamp emits light in 360 degrees, and the effective utilization rate of the light is low. Some LED fish-catching lamps on the market use street lamp lenses for light distribution, but the illumination near the ship and near the bottom is less, and after the illumination is adjusted through the rotation angle, the illumination near the ship and near the bottom is improved, but the illumination far away from the ship is partially sacrificed; some LED fishing lamps use a transparent cover to distribute light, the angle is small, the irradiation range on the sea level is not wide, the LED light cannot be fully utilized in the expected irradiation range to illuminate, and the light utilization rate is low.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, an optical element and a lamp are provided, which can improve the effective utilization rate of light of a light-emitting part in the lamp.

An optical element according to an embodiment of a first aspect of the present application, the optical element comprising:

the lens unit comprises at least two lens units, the bottom of each lens unit is provided with an accommodating cavity, and the accommodating cavity is used for arranging a light-emitting piece; the lens unit is used for generating asymmetric light beams from the light emitted by the light-emitting piece; and combining the asymmetric light beams emitted by the lens units to obtain an emergent light beam in a preset irradiation range.

According to the above embodiments of the present application, at least the following advantages are provided: by arranging a plurality of lens units, a plurality of asymmetrical light beams can be generated, and the polarization angle of the emergent light beam of each lens unit is adjusted at the moment, so that the asymmetrical light beams with different polarization angles can be obtained. At this moment, can be with the regional scope of needs shining with its division into a plurality of sub-irradiation areas to make in each asymmetric light beam deflection to the sub-irradiation area that corresponds, for traditional lighting methods, because light is by more abundant effective utilization in this application, consequently can thereby promote the effective utilization of the light of illuminating part in the lamps and lanterns.

According to some embodiments of the first aspect of the present application, the bottom edges of every two adjacent lens units are connected to each other. By connecting the bottom edges of every two adjacent lens units to each other, the mounting convenience of the optical element can be improved.

An optical element according to some embodiments of the first aspect of the present application, wherein one of the lens units is a first lens unit, an outer surface of which is provided with a first convex exit surface and a second convex exit surface; a first incident concave surface and a second incident concave surface are arranged on the cavity wall of the accommodating cavity of the first lens unit;

the curvature of the first emergent convex surface is larger than that of the second emergent convex surface;

the curvature of the first incident concave surface is smaller than that of the second incident concave surface; the first incident concave surface and the first emergent convex surface are arranged oppositely; the first incident concave surface is used for refracting light rays to the first emergent convex surface and then emitting the light rays; the second incident concave surface is used for refracting light rays to the second emergent convex surface and then emitting the light rays.

Therefore, the light source is formed by refracting the light from the first incident concave surface with smaller curvature to the first emergent convex surface with larger curvature; the light is refracted from the second incident concave surface with the larger curvature to the second emergent convex surface with the smaller curvature, so that the angle between the light deflection angle of the light-emitting member arranged in the first lens unit and the central line of the light inlet of the accommodating cavity is smaller, and the refracted light can be concentrated in the area at the far end of the irradiation range of the optical element.

An optical element according to some embodiments of the first aspect of the present application, wherein one of the lens units is a second lens unit, and a cavity wall of a containing cavity of the second lens unit is sequentially provided with a third concave incident surface, a first convex incident surface, and a first plane of incidence; the outer surface of the second lens unit is sequentially provided with a third total internal reflection plane, a first emergent plane, a second total internal reflection plane and a second emergent plane;

the first incident plane and the second emergent plane are arranged oppositely; the third incident concave surface is used for refracting light rays to the third total internal reflection plane so as to eliminate stray light; the first incident convex surface is used for refracting light to the first total internal reflection surface or the second total internal reflection surface so that the light refracted to the first total internal reflection surface is totally reflected to the first emergent plane and then emitted, and the light refracted to the second total internal reflection surface is totally reflected to the second emergent plane and then emitted; the first incident plane is used for refracting the light rays to the second emergent plane and then emitting the light rays.

Therefore, by arranging the first total internal reflection surface at the outermost side of the second lens unit and arranging the second total internal reflection surface at the middle position of the second lens unit, the light rays refracted by the second lens unit are concentrated among the second total internal reflection surface, the first total internal reflection surface and the second total internal reflection surface, and the light rays of the light-emitting member arranged in the first lens unit are deflected to the area near the irradiation range of the optical element.

An optical element according to some embodiments of the first aspect of the present application, the outer surface of the second lens unit is further provided with an adjustment plane, the adjustment plane being arranged between the first exit plane and the second total internal reflection surface. By setting the adjusting plane, the inclination angle of the first exit plane can be adjusted, so that the angle between the light refracted out of the second lens unit and the center line of the light inlet of the accommodating cavity can be adjusted.

According to an optical element of some embodiments of the first aspect of the present application, one of the lens units is a third lens unit, a second incident plane and a fourth incident concave surface are sequentially disposed on a cavity wall of a containing cavity of the third lens unit, and a third total internal reflection surface, a third exit plane and a first exit concave surface are sequentially disposed on an outer surface of the third lens unit;

the second incidence plane is arranged opposite to the third total internal reflection surface; the second incidence plane is used for refracting light rays to the third total internal reflection plane so that the light rays are totally reflected to the third emergent plane and then emitted; the fourth incident concave surface is used for refracting light rays to the first emergent concave surface and then emitting the light rays.

Therefore, the third emergent plane, the first emergent concave surface and the third emergent convex surface are arranged on one side of the third total internal reflection surface, so that the incident light can be deflected along one side of the third total internal reflection surface. So that the light refracted by the third lens unit can be concentrated in the central region of the range which can be irradiated by the optical element.

An optical element according to some embodiments of the first aspect of the present application, wherein an outer surface of the third lens unit is further provided with a third convex exit surface, and the third convex exit surface is provided as a smooth surface or a rough surface; the third emergent convex surface is arranged on one side of the third emergent plane and the first emergent concave surface, and the third emergent convex surface is opposite to the fourth incident concave surface; the third emergent convex surface is used for scattering the light rays incident from the fourth incident concave surface. By arranging the third emergent convex surface, the light refracted out from the third emergent convex surface can be scattered, so that the light emergent from the first emergent concave surface and the adjacent lens unit can be uniformly distributed.

A luminaire according to an embodiment of the second aspect of the present application, said luminaire comprising:

a light fixture structure comprising a light source plate;

the light source assembly comprises a plurality of light emitting pieces and light transmitting units, the light transmitting units are arranged on the light source board and comprise a plurality of lens units, an accommodating cavity is formed in the bottom of each lens unit, and each accommodating cavity is provided with the light emitting pieces; the lens unit is used for generating asymmetric light beams from the light emitted by the light-emitting piece; and combining the asymmetric light beams emitted by the lens units to obtain an emergent light beam in a preset irradiation range.

According to the above embodiments of the present application, at least the following advantages are provided: since the optical element of the present application has any one of the technical features of the optical element of the first aspect, it has all the advantageous effects of the optical element.

According to some embodiments of the second aspect of the present application, the center of the light emitting surface of the light emitting member coincides with the center line of the light inlet of the accommodating cavity, wherein the center line of the light inlet is perpendicular to the light source plate. The center of the light emitting surface is overlapped with the central line of the light inlet of the accommodating cavity, so that the incident light is deflected along a preset angle.

According to some embodiments of the second aspect of the present application, the lens units are provided in three, the three lens units being respectively provided as a first lens unit, a second lens unit, and a third lens unit; the included angle between the light rays refracted by the first lens unit and the light source plate ranges from 60 degrees to 110 degrees; the included angle between the light rays refracted by the second lens unit and the light source plate ranges from 0 degree to 50 degrees; the included angle range of the light refracted by the third lens unit and the light source plate is 30-70 degrees. Through setting up three lens unit, can concentrate the irradiation respectively in the region near on the lamps and lanterns mounted position (like fishing boat), middle part region and distant place region, when practicing thrift light energy, obtain better illumination effect.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of a lamp (without a lamp housing) according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a first lens unit according to an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a first lens unit according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a second lens unit according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a third lens unit according to an embodiment of the present application;

FIG. 6 is a schematic view of a lamp according to an embodiment of the present disclosure (without a lamp housing);

fig. 7 is a schematic view of a lamp according to an embodiment of the present application on a ship.

Reference numerals:

a lens unit 100, a housing chamber 110,

The first lens unit 200, the first concave incident surface 211, the second concave incident surface 212, the first convex emergent surface 221, the second convex emergent surface 222, the first connecting portion 230,

A second lens unit 300, a third concave incident surface 311, a first convex incident surface 312, a first incident plane 313, a first total internal reflection surface 321, a first exit plane 322, a second total internal reflection surface 323, a second exit plane 324, a tuning plane 325, a transition plane 326, a second connection portion 340, a third connection portion 350, a third total internal reflection plane 351, a third total internal reflection surface,

A third lens unit 400, a second incident plane 411, a fourth incident concave surface 412, a third total internal reflection surface 421, a third emergent plane 422, a first emergent concave surface 423, a third emergent convex surface 424, an arc surface 4241,

A light source plate 610, a luminous member 620,

Ship 710, sea level 720, lamp holder 730.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

The optical element and the lamp of the present application are described below with reference to fig. 1 to 7.

The optical element shown in fig. 1 includes:

the lens unit 100, the lens unit 100 is provided with at least two, the bottom of each lens unit 100 is provided with an accommodating cavity 110, and the accommodating cavity 110 is used for arranging a light-emitting member 620; the lens unit 100 is used for generating an asymmetric light beam from the light emitted from the light-emitting member 620; the asymmetric light beams emitted by the lens units 100 are combined to obtain an emergent light beam in a preset irradiation range.

It should be noted that the light-emitting members 620 of each lens unit 100 may be arranged differently, and adjusted according to the required irradiation distance and intensity.

Note that the number of lens units 100 may be set according to the range of the outgoing beam irradiation required.

It should be noted that the asymmetric light beam means that the emergent light beam has a certain deflection. When all the light rays are concentrated in a designated area, the intensity of the irradiated area can be increased, compared with the lens unit 100 without deflection, the lens unit 100 with the same irradiation effect and generating asymmetric light beams needs fewer light sources, and therefore the effective utilization rate of the light sources can be effectively improved.

It should be noted that the light emitting element 620, i.e. the light source, is disposed at the central line of the light inlet of the accommodating cavity 110, i.e. the same cross section of the lens unit 100, and is perpendicular to the middle point of the connecting line of the two ends of the bottom of the accommodating cavity 110.

The irradiation range refers to a range covered by light emitted from the optical element.

Therefore, by providing a plurality of lens units 100, a plurality of asymmetric light beams can be generated, and at this time, the polarization angle of the outgoing light beam of each lens unit 100 is adjusted, and asymmetric light beams having different polarization angles can be obtained. At this moment, can be with the regional scope that needs shine with it partition into a plurality of sub-irradiation areas to make in each asymmetric light beam deflection arrives corresponding sub-irradiation area, for traditional lighting methods, light in this application is by more abundant effective utilization, thereby promotes the effective utilization of the light of illuminating part 620 in the lamps and lanterns.

It is understood that the bottom edges of every two adjacent lens units 100 are connected to each other. By connecting the bottom edges of each two adjacent lens units 100 to each other, the mounting convenience of the optical elements can be improved.

Note that in some embodiments, the bottom edges of every two adjacent lens units 100 are integrally formed. Obtained by processing the same plate. In other embodiments, different plates may be used for each lens unit and may be bonded or snapped together.

It can be understood that, as shown in fig. 1, fig. 2 and fig. 3, one of the lens units 100 is a first lens unit 200, and the outer surface of the first lens unit 200 is provided with a first exit convex surface 221 and a second exit convex surface 222; the cavity wall of the accommodation cavity 110 of the first lens unit 200 is provided with a first concave incident surface 211 and a second concave incident surface 212.

The curvature of the first exit convex surface 221 is greater than that of the second exit convex surface 222.

The curvature of the first concave incident surface 211 is smaller than that of the second concave incident surface 212; the first incident concave surface 211 is opposite to the first emergent convex surface 221; the first concave incident surface 211 is used for refracting light to the first convex emergent surface 221 and then emitting the light; the second concave incident surface 212 is used for refracting the light to the second convex exit surface 222 and then emitting the light.

It should be noted that the greater the curvature, the greater the convexity of the convex surface and the greater the curvature of the concave surface.

It should be noted that, in some embodiments, the curvature of the junction between the first exit convex surface 221 and the second exit convex surface 222 is continuous, and the outer surface of the first lens unit 200 forms a smooth curved surface; the curvature of the junction of the first concave incident surface 211 and the second concave incident surface 212 is continuous, the cavity wall of the accommodating cavity 110 of the first lens unit 200 forms a smooth curved surface, and the light emitted from the light source is precisely distributed by forming the outer surface of the first lens unit 200 and the cavity wall of the accommodating cavity 110 into smooth curved surfaces.

Therefore, by refracting light from the first concave incident surface 211 having a smaller curvature to the first convex exit surface 221 having a larger curvature; the light is refracted from the second incident concave surface 212 with the larger curvature to the second exit convex surface 222 with the smaller curvature, so that the angle between the light deflection angle of the light emitting member 620 disposed in the first lens unit 200 and the center line of the light inlet of the accommodating chamber 110 is smaller, and the refracted light can be concentrated in the area far from the irradiation range of the optical element.

The distal end region of the irradiation range of the optical element means a continuous region farthest from the irradiation range of the optical element.

It can be understood that, as shown in fig. 1 and fig. 4, one of the lens units 100 is a second lens unit 300, and a cavity wall of the accommodating cavity 110 of the second lens unit 300 is provided with a third concave incident surface 311, a first convex incident surface 312 and a first plane of incidence 313 in sequence; the outer surface of the second lens unit 300 is sequentially provided with a third total internal reflection plane 351, a first total internal reflection plane 321, a first exit plane 322, a second total internal reflection plane 323 and a second exit plane 324;

the first incident plane 313 is arranged opposite to the second exit plane 324; the third concave incident surface 311 is used for refracting light to a third total internal reflection plane 351 so as to eliminate stray light; the first convex incident surface 312 is used for refracting light to the first total internal reflection surface 321 or the second total internal reflection surface 323, so that the light refracted to the first total internal reflection surface 321 is reflected to the first emergent plane 322 and then emitted, and the light refracted to the second total internal reflection surface 323 is reflected to the second emergent plane 324 and then emitted; the first incident plane 313 is used for refracting the light to the second exit plane 324 and then emitting the light.

Note that the junction between the convex first incident surface 312 and the first incident plane 313 is a smooth transition. Light incident from the first convex incident surface 312 is partially refracted toward the first internal reflection surface 321, and a portion of the light is also refracted toward the second internal reflection surface 323.

Therefore, by disposing the first total internal reflection surface 321 at the outermost side of the second lens unit 300 and disposing the second total internal reflection surface 323 at the middle position of the second lens unit 300, the light refracted by the second lens unit 300 is concentrated on the side of the second total internal reflection surface 323 and between the first total internal reflection surface 321 and the second total internal reflection surface 323, so that the light of the light emitting member 620 disposed in the second lens unit 300 is deflected to the area near the irradiation range of the optical element.

The region near the irradiation range of the optical element means a continuous irradiation region corresponding to the irradiation range closest to the mounting position of the optical element.

It should be noted that the total internal reflection surface may reflect the incident light. Taking the second internal total reflection surface 323 as an example, when the incident light is incident from the first incident convex surface 312 and refracted to the second internal total reflection surface 323 in the second lens unit 300, the incident light is reflected to the second exit plane 324 and exits.

It is understood that, as shown in fig. 4, the outer surface of the second lens unit 300 is further provided with a regulation plane 325, and the regulation plane 325 is disposed between the first exit plane 322 and the second total internal reflection surface 323. By providing the adjustment plane 325, the inclination angle of the first exit plane 322 can be adjusted, so that the angle between the light refracted from the second lens unit 300 and the center line of the light entrance of the receiving cavity 110 can be adjusted.

It should be noted that the first exit plane 322 determines the farthest distance that the second lens unit 300 can irradiate, because the farthest distance that the second lens unit 300 can irradiate can be adjusted by adjusting the angle of the first exit plane 322; at this time, the light refracted by the first exit plane 322 and the second exit plane 324 is mixed and then concentrated in the middle area of the illuminable range of the lamp.

It can be understood that, as shown in fig. 1 and fig. 5, one of the lens units 100 is a third lens unit 400, a second incident plane 411 and a fourth incident concave surface 412 are sequentially disposed on a cavity wall of the accommodating cavity 110 of the third lens unit 400, and a third total internal reflection surface 421, a third exit plane 422 and a first exit concave surface 423 are sequentially disposed on an outer surface of the third lens unit 400.

The second incident plane 411 is disposed opposite to the third total internal reflection plane 421; the second incident plane 411 is used for refracting the light to the third total internal reflection plane 421, so that the light is totally reflected to the third exit plane 422 and then emitted; the fourth concave incident surface 412 is used for refracting the light to the first concave exit surface 423 and then emitting the light.

Therefore, by disposing the third exit plane 422, the first exit concave surface 423 and the third exit convex surface 424 on the side of the third internal reflection surface 421, the incident light can be deflected along the side of the third internal reflection surface 421. So that the light emitted from the third lens unit 400 can be concentrated in the central region of the range that can be irradiated by the optical element.

It should be noted that the central region of the irradiation range of the optical element is a continuous region where the irradiation range and the edge of the irradiation range do not coincide.

It is understood that, as shown in fig. 5, the outer surface of the third lens unit 400 is further provided with a third exit convex surface 424, and the third exit convex surface 424 is provided as a smooth surface or a rough surface; the third emergent convex surface 424 is disposed at one side of the third emergent plane 422 and the first emergent concave surface 423, and the third emergent convex surface 424 is disposed opposite to the fourth incident concave surface 412; the third exit convex surface 424 is used for scattering the light incident from the fourth incident concave surface 412. By providing the third convex exit surface 424, the light refracted from the third convex exit surface 424 can be scattered, so that the light emitted from the first concave exit surface 423 and the adjacent lens unit 100 can be uniformly distributed.

It should be noted that, when the third lens unit 400 is disposed adjacent to the second lens unit 300 or the first lens unit 200, the third emergent convex surface 424 is scattered, so that the light refracted between two adjacent lens units 100 is uniformly distributed, and the visual effect is better.

It should be noted that the first lens unit 200, the second lens unit 300, and the third lens unit 400 may be arranged in any combination to meet different illumination requirements. In some embodiments, the first lens unit 200, the second lens unit 300, and the third lens unit 400 are provided with a connection portion at both sides of the receiving cavity 110 of one or more of the receiving cavities 110, so that the cavity space formed by the receiving cavity 110 and the light source plate 610 is larger, and the shape of the incident surface of the receiving cavity 110 may be more variable.

In some embodiments, such as the sea level 720, when the optical element is provided with three lens units 100, and is respectively provided as the first lens unit 200, the second lens unit 300, and the third lens unit 400, the illumination effect is as shown in fig. 6, wherein the light source plate is arranged perpendicular to the sea level 720.

According to a second aspect of the present application, a luminaire, such as fig. 7 luminaire, includes:

a lamp structure including a light source plate 610;

the light source assembly comprises a plurality of light emitting pieces 620 and light transmitting units, wherein the light transmitting units are arranged on the light source plate 610 and comprise a plurality of lens units 100, the bottom of each lens unit 100 is provided with an accommodating cavity 110, and each accommodating cavity 110 is provided with a light emitting piece 620; the lens unit 100 is used for generating an asymmetric light beam from the light emitted from the light-emitting member 620; the asymmetric light beams emitted by the lens units 100 are combined to obtain an emergent light beam in a preset irradiation range.

Therefore, since the optical element of the present application has any one of the technical features of the optical element of the first aspect, it has all the advantageous effects of the optical element.

It should be noted that, in some applications, the lamp structure further includes a lamp housing, the lamp housing is provided with a light source assembly accommodating cavity, the light source board 610 is fixedly disposed in the light source assembly accommodating cavity, and the lens unit 100 and the light emitting element 620 are disposed on the light source board 610. And the outer surface of the lens unit 100 and the cavity wall of the light source assembly accommodating cavity are formed with heat dissipation channels, so that the heat dissipation effect of the light source assembly is good, and the service life of the lamp is prolonged.

It can be understood that, as shown in fig. 7, it is preferable that the center of the light emitting surface of the light emitting member 620 coincides with the center line of the light inlet of the receiving cavity 110, wherein the center line of the light inlet is perpendicular to the light source plate. The center of the light emitting surface coincides with the center line of the light inlet of the accommodating cavity 110, so that the incident light is deflected along a preset angle.

It should be noted that the light emitting element 620 may be disposed as a lamp bead, and the lamp beads may be disposed in one or more rows, which may be set according to the intensity of the deflected light. The lamp beads can be selected from the LED lamp beads with models of 7070, 5050, 3030 or 2835 and the like, so that a better irradiation effect is achieved.

It can be understood that three lens units are provided, which are respectively provided as the first lens unit 200, the second lens unit 300, and the third lens unit 400; the included angle between the light refracted by the first lens unit 200 and the light source plate is 60-110 degrees; the included angle between the light refracted by the second lens unit 300 and the light source plate is 0-50 degrees; the included angle between the light refracted by the third lens unit 400 and the light source plate is 30-70 degrees. Through setting up three lens unit 100, can concentrate the irradiation respectively with the near-by region, middle part region and the distant place region of lamps and lanterns mounted position (like the fishing boat), when practicing thrift light energy, obtain better illumination effect.

It should be noted that the lamp can be installed on a fishing boat or a wall, and when the lamp is installed on the fishing boat, as shown in fig. 7, the light source plate 610 is fixed on the lamp holder of the fishing boat through the lamp housing, and at this time, the light of the lens unit of the lamp is emitted to the periphery of the fishing boat to intensively irradiate the adjacent area, the middle area and the distant area of the fishing boat, respectively.

A fishing light of the embodiments of the present application will be described in detail in one specific embodiment with reference to fig. 1 to 7. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting.

As shown in fig. 7, the fishing lamp includes a lamp structure and a light source assembly.

Wherein, the lamp structure comprises a light source plate 610; the light source assembly comprises a plurality of light emitting members 620 and a light transmitting unit, wherein the light transmitting unit is arranged on the light source plate 610 and comprises a plurality of lens units 100, the bottom of each lens unit 100 is provided with an accommodating cavity 110, and each accommodating cavity 110 is provided with a light emitting member 620; the lens unit 100 is used for generating an asymmetric light beam from the light emitted from the light-emitting member 620; the asymmetric light beams emitted by the lens units 100 are combined to obtain an emergent light beam in a preset irradiation range.

Specifically, the lamp holder 730 is a square frame and is disposed on the boat 710, the lamp structure further includes a lamp housing, the lamp housing is provided with a light source assembly accommodating cavity, the light source plate 610 is fixedly disposed in the light source assembly accommodating cavity, and the lens unit 100 and the light emitting element 620 are disposed on the light source plate 610. And a heat dissipation channel is formed between the outer surface of the lens unit 100 and the wall of the light source assembly accommodating cavity. The lamp shell is fixed on the square frame. And the light source board 610 is disposed perpendicular to the sea level 720.

Specifically, as shown in fig. 7, each light emitting element 620 includes at least one row of lamp beads, and when the lamp beads are arranged in two or more rows, the lamp beads are regarded as a whole light source, the center of the cross section of the whole light source coincides with the center line of the light inlet of the accommodating cavity 110, and the center line of the light inlet is perpendicular to the light source plate. When the lamp pearl sets up one row, the light emitting area center of every row of lamp pearl and the income light mouthful central line coincidence that holds chamber 110, wherein go into light mouthful central line and light source board perpendicular.

Specifically, the lens units 100 are provided in three, and the three lens units 100 are respectively provided as a first lens unit 200, a second lens unit 300, and a third lens unit 400; the included angle between the light refracted by the first lens unit 200 and the light source plate is 60-110 degrees; the included angle between the light refracted by the second lens unit 300 and the light source plate is 0-50 degrees; the included angle between the light refracted by the third lens unit 400 and the light source plate is 30-70 degrees.

Further, as shown in fig. 1, 2 and 3, the outer surface of the first lens unit 200 is provided with a first exit convex surface 221 and a second exit convex surface 222; the cavity wall of the accommodation cavity 110 of the first lens unit 200 is provided with a first concave incident surface 211 and a second concave incident surface 212.

As shown in fig. 1 and 4, the cavity wall of the accommodating cavity 110 of the second lens unit 300 is provided with a third concave incident surface 311, a first convex incident surface 312, and a first plane of incidence 313 in this order; the outer surface of the second lens unit 300 is sequentially provided with a third total internal reflection plane 351, a transition plane 326, a first total internal reflection plane 321, a first exit plane 322, a second total internal reflection plane 323, and a second exit plane 324.

Further, as shown in fig. 4, the outer surface of the second lens unit 300 is further provided with a regulating plane 325, and the regulating plane 325 is disposed between the first exit plane 322 and the second total internal reflection surface 323.

As shown in fig. 1 and 5, one of the lens units 100 is a third lens unit 400, a second incident plane 411 and a fourth incident concave surface 412 are sequentially disposed on a cavity wall of the accommodating cavity 110 of the third lens unit 400, and a third total internal reflection surface 421, a third emergent plane 422 and a first emergent concave surface 423 are sequentially disposed on an outer surface of the third lens unit 400.

The second incident plane 411 is disposed opposite to the third total internal reflection plane 421; the second incident plane 411 is used for refracting the light to the third total internal reflection plane 421, so that the light is totally reflected to the third exit plane and then emitted; the fourth concave incident surface 412 is used for refracting the light to the first concave exit surface 423 and then emitting the light.

As shown in fig. 5, the outer surface of the third lens unit 400 is further provided with a third convex exit surface 424, and the third convex exit surface 424 is provided as a rough surface; the third emergent convex surface 424 is disposed at one side of the third emergent plane 422 and the first emergent concave surface 423, and the third emergent convex surface 424 is disposed opposite to the fourth incident concave surface 412; the third exit convex surface 424 is used for scattering the light incident from the fourth incident concave surface 412.

Specifically, as shown in fig. 5, a plurality of continuous arc surfaces 4241 are disposed on the third exit convex surface 424.

Specifically, as shown in fig. 1, the bottom edges of every two adjacent lens units 100 are connected and integrally formed. Specifically, two first connecting portions 230 are disposed at the bottoms of the two sides of the accommodating cavity of the first lens unit 200; the second connecting portion 340 and the third connecting portion 350 are disposed at the bottom of both sides of the receiving cavity of the second lens unit 300. One first connection portion 230 is integrally formed with the second connection portion 340, and the third connection portion 350 is integrally formed with the end portion of the third lens unit 400. Wherein the first connection portion 230 and the second connection portion 340 are both connected, and an upper surface of the third connection portion 350 is provided as a third total internal reflection plane 351.

At this time, when the fishing lamp starts to operate, as shown in fig. 6 and 7, the first lens unit 200 irradiates at a far side of the irradiation range of the sea level 720, the second lens unit 300 irradiates at a near side of the irradiation range of the sea level 720, and the third lens unit 400 irradiates at a middle portion of the irradiation range of the sea level. At this time, the range to be irradiated by the fishing lamp is divided into three areas, namely, near, middle and far areas, and the light of the light-emitting member 620 is deflected by the optical element to be irradiated on the near, middle and far areas in a concentrated manner, so that the illumination intensity of the three areas can meet the purpose of attracting fish. At this moment, because incident light all deflects appointed region, consequently light all is utilized to can promote the effective utilization ratio of the light source of illuminating part in the lamps and lanterns.

Specifically, the light rays are oriented as follows:

in the first lens 200, part of the light rays of the light-emitting member 620 enter from the first concave incident surface 211 and then refract to exit to the first convex exit surface 221, the other light rays of the light-emitting member 620 enter from the second concave incident surface 212 and then refract to exit to the second convex exit surface 222, and the light beams exiting from the first convex exit surface 221 and the second convex exit surface 222 irradiate to a far position in the irradiation range.

In the second lens 300, part of the light emitting element 620 enters from the first convex incident surface 312 and is refracted to the first total internal reflection surface 321, and the first total internal reflection surface 321 totally reflects the light to the first exit plane 322 to exit; part of light rays of the light emitting member 620 are incident from the first convex incident surface 312 and then refracted to the second total internal reflection surface 323; the second total internal reflection surface 323 totally reflects the light to the second exit plane 324 for exiting; other part of the light rays of the light emitting member 620 are refracted from the first incident plane 313 to the second exit plane 324 to be emitted. The light beams emitted from the second emission plane 324 and the first emission plane 322 are mixed and irradiated in the vicinity of the irradiation range.

In the third lens 400, part of the light rays of the light emitting member 620 are refracted from the second incident plane 411 to the third total internal reflection surface 421; the third total internal reflection surface 421 totally reflects the light to the third exit plane 422 for exiting; part of the light rays of the light emitting member 620 are refracted from the fourth incident concave surface 412 to the first emergent concave surface 423 and the third emergent convex surface 424, and are emitted by the first emergent concave surface 423 and the third emergent convex surface 424; the light beams emitted from the first exit concave surface 423, the third exit convex surface 424, and the third exit plane 422 irradiate the middle of the irradiation range.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application.

Claims

1. An optical element, comprising:

2. The optical element according to claim 1,

the bottom edges of every two adjacent lens units are connected with each other.

3. The optical element according to claim 1,

one of the lens units is a first lens unit, and a first emergent convex surface and a second emergent convex surface are arranged on the outer surface of the first lens unit; a first incident concave surface and a second incident concave surface are arranged on the cavity wall of the accommodating cavity of the first lens unit;

4. Optical element according to one of claims 1 to 3,

one of the lens units is a second lens unit, and a third incident concave surface, a first incident convex surface and a first incident plane are sequentially arranged on the cavity wall of the accommodating cavity of the second lens unit; the outer surface of the second lens unit is sequentially provided with a third total internal reflection plane, a first emergent plane, a second total internal reflection plane and a second emergent plane;

5. The optical element according to claim 4,

the outer surface of the second lens unit is further provided with an adjusting plane, and the adjusting plane is arranged between the first emergent plane and the second total internal reflection surface.

6. The optical element according to claim 4,

one of the lens units is a third lens unit, a second incident plane and a fourth incident concave surface are sequentially arranged on the cavity wall of the accommodating cavity of the third lens unit, and a third total internal reflection surface, a third emergent plane and a first emergent concave surface are sequentially arranged on the outer surface of the third lens unit;

7. The optical element according to claim 6,

the outer surface of the third lens unit is also provided with a third emergent convex surface which is a smooth surface or a rough surface; the third emergent convex surface is arranged on one side of the third emergent plane and the first emergent concave surface, and the third emergent convex surface is opposite to the fourth incident concave surface; the third emergent convex surface is used for scattering the light rays incident from the fourth incident concave surface.

8. A light fixture, comprising:

a light fixture structure comprising a light source plate;

9. The luminaire of claim 8,

the center of the light emitting surface of the light emitting piece is overlapped with the center line of the light inlet of the accommodating cavity, wherein the center line of the light inlet is perpendicular to the light source plate.

10. The luminaire of claim 9,

the lens unit is provided with three, and the three lens units are respectively set as a first lens unit, a second lens unit and a third lens unit.