CN113503519A

CN113503519A - Annular lens and lamp

Info

Publication number: CN113503519A
Application number: CN202110708183.2A
Authority: CN
Inventors: 孙鑫; 李冲冲; 郭金明
Original assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Current assignee: Opple Lighting Co Ltd; Suzhou Op Lighting Co Ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-10-15

Abstract

The application provides an annular lens and lamps and lanterns, annular lens's lower surface includes holding surface and income plain noodles, the income plain noodles is injectd the income plain noodles chamber that holds the light source, and first side is the plane of reflection, sets up in the one side that is close to the center pin, and the second side sets up the one side that deviates from the center pin, and second side and upper surface are for going out the plain noodles, light via go into after the plain noodles is incided, partly process the second side or the upper surface outgoing is to being close to annular lens outside direction deflection, another part warp behind the first side reflection by upper surface outgoing is to being close to annular lens outside direction deflection. The lens that this application provided adopts the design that the curved surface adds the plane of reflection, realizes dividing regional grading for the light distribution on receiving the face is even. The annular lens LED lamp beads can be freely distributed in the annular direction, and the power and the color temperature are more flexibly distributed. The lens is locally subjected to a sand blasting process, so that stray light is eliminated.

Description

Annular lens and lamp

Technical Field

The present invention relates to a lens, in particular to a ring lens for a lamp, and a lamp comprising the ring lens.

Background

The lamp is a big invention for people to conquer night, the night is changed into day, the range and the activity time of human activities are expanded, and the development of the LED brings more design space for the design of the lamp. The common lamp usually uses E14, E27 light source or directly uses LED light source board module to give out light and hit on the light-transmitting lampshade, the light efficiency is simpler and uneven, and the current individual requirements of users on diversified light efficiency cannot be met.

Disclosure of Invention

The invention aims to solve the problems of simple and uneven lighting effect of a light source of a lamp, and provides a lens for distributing light to the light source to achieve the purpose of uniform light emission.

In order to achieve the above-mentioned functions, the present invention adopts a technical solution of providing an annular lens, which includes, in a cross section thereof, an upper surface and a lower surface which are oppositely disposed, and a first side surface and a second side surface which are oppositely disposed and respectively connect the upper surface and the lower surface, the annular lens being formed by surrounding the cross section around a central axis, and is characterized in that: the lower surface includes holding surface and income plain noodles, the income plain noodles is injectd the income light chamber that holds the light source, first side is the plane of reflection, sets up and is being close to one side of center pin, the second side sets up and deviates from one side of center pin, the second side with the upper surface is play plain noodles, and light via go into the plain noodles back of inciding, partly process the second side or the upper surface is emergent, to being close to annular lens outside direction deflection, another part warp behind the first side reflection by the upper surface is emergent, to being close to annular lens outside direction deflection.

Preferably, a reflective layer is disposed on the first side surface, and the reflective layer is formed by coating a film, spraying a reflective material, or disposing a reflective paper.

Preferably, the first side surface is a continuous smooth curved surface, and protrudes to the outside of the annular lens.

Preferably, go into the plain noodles including the first income plain noodles, the second that connect gradually goes into plain noodles, third income plain noodles, the second go into the plain noodles with the upper surface sets up relatively, first income plain noodles one end is connected first side, the other end is connected the second goes into the plain noodles, third income plain noodles one end is connected the second goes into the plain noodles, the other end is connected the holding surface.

Preferably, in the cross section, the cross section of the second light incident surface is a curve protruding to the outer side of the ring lens, and the cross sections of the first light incident surface and the third light incident surface are straight lines.

Preferably, the second side surface includes a first curved surface section and a first plane section that are connected to each other, the first curved surface section is connected to the supporting surface and is a smooth curved surface that protrudes to the outer side of the annular lens, the first plane section is connected to the first curved surface section and the upper surface, and light incident from the third light incident surface exits from the second side surface.

Preferably, the second side is provided with a grit-blasted layer.

Preferably, the upper surface includes first optical surface, second optical surface, third optical surface that connects gradually, first optical surface connects first side, third optical surface connects the second side, and the light that warp after first side reflection is followed first optical surface is emergent, and the warp the light part that the second income plain noodles was incited is followed the second optical surface is emergent, third optical surface is the plane of reflection, and the warp the light part that the second income plain noodles was incited is in after third optical surface department reflects by the second side is emergent.

Preferably, the first optical surface includes a second curved surface section and a second flat surface section connected to each other, the second curved surface section is connected to the second optical surface and is a smooth curved surface protruding to the outside of the annular lens, the second flat surface section is connected to the second curved surface section and the first side surface, and the second flat surface section is parallel to the support surface.

Preferably, the second optical surface is a smooth curved surface protruding to the outside of the annular lens, and the third optical surface is a smooth curved surface protruding to the outside of the annular lens.

The application also provides a lamp, its characterized in that: the lamp comprises a light source and the lens, wherein the light source is accommodated in the light inlet cavity of the lens.

The lens provided by the invention adopts the design of a curved surface and a reflecting surface, realizes regional light distribution, and enables the light distribution on a receiving surface to be uniform. The annular lens LED lamp beads can be freely distributed in the annular direction, and the power and the color temperature are more flexibly distributed. The lens is locally subjected to a sand blasting process, so that stray light is eliminated.

Drawings

FIG. 1 is a schematic cross-sectional view of a preferred embodiment of a toroidal lens of the present invention;

FIG. 2 is a schematic perspective view of the preferred embodiment of FIG. 1;

FIG. 3 is a schematic structural diagram of a preferred embodiment of the lamp of the present invention;

fig. 4 is a schematic diagram of a light path of the lamp of fig. 3.

Detailed Description

The ring lens for a lamp according to the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The ring lens 51 of a preferred embodiment of the present application has a cross section as shown in fig. 1, and the ring lens 51 shown in fig. 2 is formed by surrounding the cross section around the central axis Z. Viewed in cross-section in fig. 1, the annular lens 51 comprises an upper surface 2 and a lower surface 1 arranged opposite to each other, and a first side surface 3 and a second side surface 4 arranged opposite to each other and connecting the upper surface 2 and the lower surface 1, respectively.

The lower surface 1 comprises a support surface 102 and a light incident surface 101. The light incident surface 101 includes a first light incident surface 1011, a second light incident surface 1012, and a third light incident surface 1013 connected in this order. The second light incident surface 1012 is opposite to the upper surface 2, one end of the first light incident surface 1011 is connected to the first side surface 3, the other end is connected to the second light incident surface 1012, one end of the third light incident surface 1013 is connected to the second light incident surface 1012, and the other end is connected to the supporting surface 102. The first, second, and third

light incident surfaces

1011, 1012, 1013 define a light incident cavity that houses a light source. In the cross section of fig. 1, the cross section of the second light incident surface 1012 is a curve protruding outward from the toroidal lens 51, and the cross sections of the first light incident surface 1011 and the third light incident surface 1013 are straight lines.

The first side surface 3 is a reflecting surface, is provided on the side close to the central axis Z, and is a continuous smooth curved surface protruding outward of the annular lens 51. In fig. 1, since the angle light of the curved surface cannot directly realize total reflection at the first side surface 3, the surface of the first side surface 3 is provided with a reflective layer, and the reflective layer may be formed by coating a film, spraying a reflective material, or providing a reflective paper. After the light is incident from the light incident surface 101, a part of the light strikes the first side surface 3, is reflected by the first side surface 3 and then exits from the upper surface 2, and the exiting light is deflected toward the outer side of the ring lens 51. The other part of the light rays are not reflected, and are emitted from the second side surface 4 or the upper surface 2 after being incident from the light incident surface 101, and are deflected towards the direction close to the outer side of the annular lens 51. The second side surface 4 and the upper surface 2 of the annular lens 51 are both light-emitting surfaces in the embodiment.

The second side surface 4 is arranged on the side facing away from the central axis Z and comprises a first curved surface section 402 and a first planar surface section 401 connected to each other, the first curved surface section 402 being connected to the support surface 102 and being a smooth curved surface protruding towards the outside of the ring lens 51. The first planar section 401 connects the first curved section 402 and the upper surface 2. The light rays incident from the third light incident surface 1013 exit from the second side surface 4, and the exit angle of the light rays is large. The lamps in the current market usually adopt the LED as a light source, and according to the light emitting characteristics of the LED (blue wafer excites yellow fluorescent powder) and the characteristics of the LED fluorescent powder coating process, the light emitting color of the LED is not uniform, the large-angle direction from the center of the LED to two sides shows a certain change from blue to yellow, and the large-angle light emitting is generally yellow. To solve the problem, a sand blasting layer is arranged on the second side surface 4, and the surfaces of the first curved surface section 402 and the first plane section 401 are subjected to sand blasting, so that light mixing and diffuse scattering of the lens are increased, yellow light is scattered, and light distribution transition of an irradiated surface is more uniform.

As described above, the upper surface 2 and the second side surface 4 of the annular lens 51 in the present embodiment are both light emitting surfaces. As shown in fig. 1, the upper surface 2 includes a first optical surface 201, a second optical surface 202, and a third optical surface 203, which are connected in this order. The first optical surface 201 is connected with the first side surface 3, the first optical surface 201 comprises a second curved surface section 2012 and a second flat surface section 2011 which are connected with each other, the second curved surface section 2012 is connected with the second optical surface 202 and is a smooth curved surface protruding towards the outer side of the annular lens 51, the second flat surface section 2011 is connected with the second curved surface section 2012 and the first side surface 3, and the second flat surface section 2011 is parallel to the supporting surface 102. The light ray incident from the first light incident surface 1011 is reflected by the first side surface 3 and then exits from the first optical surface 201. The second optical surface 202 is connected between the first optical surface 201 and the third optical surface 203, is a smooth curved surface protruding to the outside of the ring lens 51, and the light rays incident through the second light incident surface 102 are partially emitted from the second optical surface 202. The third optical surface 203 connects the second side surface 4 and the second optical surface 202, and is a smooth curved surface protruding to the outside of the ring lens 51, and the third optical surface 203 is a reflective surface, and a part of the light rays incident through the second light incident surface 102 is reflected at the third optical surface 203 and then exits from the second side surface 4.

The lamp of a preferred embodiment of the present application is shown in fig. 3, and includes a base 53, a cover 54, a ring lens 51, and a light source 52. The light sources 52 are arranged on the base 53 in an annular arrangement, the annular lens 51 comprises an annular light incident surface 101 covering the light sources 52, and the lampshade 54 covers the annular lens 51. The light emitted from the light source 3 enters the ring lens 51 through the light incident surface 101, and then uniformly strikes the lamp shade 54 after exiting. As shown in the specific optical path diagram, the light beam hitting the central axis Z, such as the light beam 1 in the drawing, is refracted by the first light incident surface 1011, reflected by the first side surface 3, refracted by the first optical surface 201 in the upper surface 2, and hitting the top of the lampshade 54, so that the top of the lampshade 54 is lighted. The upward light ray 2 emitted from the light source 52 is refracted by the first light incident surface 1012 and the second optical surface 202 on the upper surface 2 and then strikes the upper portion of the lampshade 54, so that the area above the lampshade 54 is illuminated. The light 3 is refracted by the second incident surface 1012 and the first plane section 401 of the second side surface 4, and is directed toward the middle of the lampshade 54, so that the middle area of the lampshade 54 is illuminated. The light ray 4 is refracted by the third incident surface 1013 and the first curved surface section 402 of the second side surface 4 and then strikes the lower portion of the lampshade 54, so that the area below the lampshade 54 is illuminated. Through the combination of the different curved surfaces and the reflecting surfaces, the light is controlled in a segmented manner, so that the surface of the lampshade 54 is uniform in overall light emitting, and a good lighting effect is realized.

Fig. 3 is only one specific application example of the lamp of the present application, and in other preferred embodiments, the lamp may have various other shapes, and the base 53 and the cover 54 may have various shapes, and the connection manner may be flexibly configured according to the different shapes. In addition, the annular lens 1 can also be used for bulbs, wall lamps, table lamps and other various lamps, and the application does not limit the lamps.

The foregoing description of the preferred embodiments of the present application has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the application to the precise forms disclosed, and it will be apparent that numerous modifications and variations may be made thereto, which may be apparent to those skilled in the art, and are intended to be included within the scope of the application as defined by the appended claims.

Claims

1. An annular lens, including relative upper surface and lower surface that sets up from its cross-section to and relative first side and the second side that sets up connect respectively upper surface and lower surface, annular lens by the cross-section is encircleed around the center pin and is formed its characterized in that: the lower surface includes holding surface and income plain noodles, the income plain noodles is injectd the income light chamber that holds the light source, first side is the plane of reflection, sets up and is being close to one side of center pin, the second side sets up and deviates from one side of center pin, the second side with the upper surface is play plain noodles, and light via go into the plain noodles back of inciding, partly process the second side or the upper surface is emergent, to being close to annular lens outside direction deflection, another part warp behind the first side reflection by the upper surface is emergent, to being close to annular lens outside direction deflection.

2. The ring lens of claim 1, wherein: and a reflecting layer is arranged on the surface of the first side surface, and is formed by coating a film, spraying a reflecting material or arranging reflecting paper.

3. The ring lens of claim 2, wherein: the first side surface is a continuous smooth curved surface and protrudes towards the outer side of the annular lens.

4. The ring lens of claim 3, wherein: go into the plain noodles including the first income plain noodles, the second that connect gradually go into plain noodles, third income plain noodles, the second go into the plain noodles with the upper surface sets up relatively, first income plain noodles one end is connected first side, the other end is connected the second goes into the plain noodles, third income plain noodles one end is connected the second goes into the plain noodles, and the other end is connected the holding surface.

5. The ring lens of claim 4, wherein: in the cross section, the cross section of the second light incident surface is a curve protruding to the outer side of the annular lens, and the cross sections of the first light incident surface and the third light incident surface are straight lines.

6. The ring lens of claim 4, wherein: the second side face comprises a first curved surface section and a first plane section which are connected with each other, the first curved surface section is connected with the supporting face and is a smooth curved surface protruding towards the outer side of the annular lens, the first plane section is connected with the first curved surface section and the upper surface, and light rays incident from the third light incident face are emitted from the second side face.

7. The ring lens of claim 6, wherein: the second side is provided with a sand blasting layer.

8. The ring lens of claim 4, wherein: the upper surface is including the first optical surface, second optical surface, the third optical surface that connect gradually, first optical surface connects first side, the third optical surface is connected the second side, the warp light after the reflection of first side is followed first optical surface outgoing, the warp the light part that the second income plain noodles was incited is followed the second optical surface outgoing, the third optical surface is the plane of reflection, the warp the light part that the second income plain noodles was incited is in after the reflection of third optical surface department by the second side outgoing.

9. The ring lens of claim 8, wherein: the first optical surface comprises a second curved surface section and a second plane section which are connected with each other, the second curved surface section is connected with the second optical surface and is a smooth curved surface protruding towards the outer side of the annular lens, the second plane section is connected with the second curved surface section and the first side surface, and the second plane section is parallel to the supporting surface.

10. The ring lens of claim 8, wherein: the second optical surface is a smooth curved surface protruding to the outer side of the annular lens, and the third optical surface is a smooth curved surface protruding to the outer side of the annular lens.

11. A light fixture, characterized by: the lamp comprises a light source and the lens as claimed in any one of claims 1 to 10, wherein the light source is accommodated in the light inlet cavity of the lens.