CN218599585U - Lens and lighting lamp - Google Patents

Abstract

The utility model relates to the technical field of lighting technology, a lens and illumination lamps and lanterns are provided. The lens comprises a lens body, wherein a light source mounting groove is formed in one side of the lens body, a light inlet surface is formed in the inner surface of the light source mounting groove, a light outlet surface is formed in the other side, opposite to the light source mounting groove, of the lens body, a first total reflection surface for connecting the light inlet surface and the light outlet surface is formed in the outer peripheral surface of the lens body, a section of conical hole is formed in the center of the lens body, the conical tip of the conical hole faces the light inlet surface, and a second total reflection surface is formed by the conical surface of the conical hole; the light incident surface comprises a first light incident surface formed on the groove wall surface of the light source mounting groove and a second light incident surface formed on the groove bottom surface of the light source mounting groove, incident light of the first light incident surface is subjected to primary total reflection through a first total reflection surface and is emitted from the light emitting surface, and incident light of the second light incident surface is subjected to primary total reflection through a second total reflection surface and the first total reflection surface respectively and is emitted from the light emitting surface. The auxiliary light spot angle can be reduced, and the illumination quality is improved.

Description

Lens and lighting lamp

Technical Field

The utility model relates to the field of lighting technology, especially, relate to a lens and illumination lamps and lanterns.

Background

In a conventional TIR (Total Internal Reflection) lens, light in a central portion is more difficult to control than light in a side wall, and after the light is emitted, a secondary spot angle is larger, which affects an illumination effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a lens for the light that solves among the prior art lens central part can make vice facula angle great and influence illuminating effect's technical problem after the emergence, in order to reduce vice facula angle, promotes illuminating effect.

The utility model also provides an illumination lamps and lanterns.

The utility model provides a lens, including the lens body, one side of lens body is equipped with the light source mounting groove, the internal surface of light source mounting groove forms into the plain noodles, the lens body is formed with the play plain noodles relative to the opposite side of light source mounting groove, the outer peripheral face of lens body is formed with the first total reflection face of connecting go into the plain noodles with go out the plain noodles, the center of lens body is equipped with a section bell mouth, the awl point of bell mouth is towards go into the plain noodles, the conical surface of bell mouth forms the second total reflection face;

the light incident surface comprises a first light incident surface formed on the groove wall surface of the light source mounting groove and a second light incident surface formed on the groove bottom surface of the light source mounting groove, incident light of the first light incident surface is subjected to primary total reflection through the first total reflection surface and is emitted from the light emitting surface, and incident light of the second light incident surface is subjected to primary total reflection through the second total reflection surface and the first total reflection surface respectively and is emitted from the light emitting surface.

According to the utility model provides a lens, the tank bottom surface is the orientation the convex curved surface of notch side of light source mounting groove.

According to the utility model provides a pair of lens, the axis of bell mouth with the central line of tank bottom surface is coaxial.

According to the utility model provides a pair of lens, still include with the cylinder hole that the bell mouth is connected, the one end in cylinder hole with the main aspects transitional coupling of bell mouth, the other end with go out the plain noodles and connect.

According to the utility model provides a pair of lens, the cone angle of bell mouth is A, A is greater than or equal to 45, and is less than 90.

According to the utility model provides a pair of lens, follow the axis direction of lens body, the projection that the second goes into the plain noodles equals the projection of the awl bottom surface of bell mouth, or the projection that the second goes into the plain noodles is located in the projection of the awl bottom surface of bell mouth.

According to the utility model provides a pair of lens, first total reflection face is the surface of revolution, just first total reflection face is continuous curved surface.

According to the utility model provides a pair of lens follows go into the plain noodles extremely the direction on play plain noodles, first total reflection face is kept away from gradually the axis of lens body.

According to the utility model provides a pair of lens, warp direct irradiation behind the incident of first income plain noodles is in the light of first total reflection face is in the reflection zone of first total reflection face with the warp the incident of second income plain noodles is passed through after the total reflection of second total reflection face transmission shines the light of first total reflection face is in the reflection zone of first total reflection face staggers each other and meets.

The utility model also provides an illumination lamps and lanterns, including light source and aforementioned lens, the light source install in the light source mounting groove.

The embodiment of the utility model provides a lens, the groove wall face and the tank bottom surface through the light source mounting groove at the lens body form first income plain noodles and second income plain noodles respectively to realize the incidence of light. The light emitting surface is formed on the other side of the lens body, so that the light can be emitted. By forming the first total reflection surface on the outer peripheral surface of the lens body, light control can be performed by using the outer peripheral surface. After the conical hole is arranged at the center of the lens body, a second total reflection surface is formed on the conical surface of the conical hole, and at the moment, the light incident to the central part of the lens body can be reflected to the first total reflection surface after being subjected to primary total reflection through the second total reflection surface and then is emergent from the light emergent surface after being subjected to primary total reflection through the first total reflection surface. Therefore, the light rays at the central part of the lens body can be controlled by the outer peripheral surface of the lens body, namely the first total reflection surface, and the direct light outgoing of the central part of the lens body can be reduced. The light of the central part of the lens body is controlled by the second total reflection surface and the first total reflection surface and then is emitted from the light emitting surface, so that the auxiliary light spot angle of the emitted light can be reduced, the required light beam angle can be achieved, and the illumination quality is improved.

The embodiment of the utility model provides an illumination lamp has adopted above-mentioned lens, and the light that the light source launches is incident from first income plain noodles on the one hand and is incited on the lens body to take place to be reflected the back through first total reflection face and from going out the plain noodles and go out, on the other hand is incited on the second income plain noodles and is incited on the lens body and take place to be reflected the back from going out the plain noodles and go out after once the total reflection respectively through second total reflection face and first total reflection face. Therefore, the light rays at the central part of the lens body can be controlled by the outer peripheral surface of the lens body, namely the first total reflection surface, and the direct light outgoing of the central part of the lens body can be reduced. The light of the central part of the lens body is controlled by the second total reflection surface and the first total reflection surface and then is emitted from the light emitting surface, so that the auxiliary light spot angle of the emitted light can be reduced, the required light beam angle can be achieved, and the illumination quality is improved.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a lens provided by the present invention;

fig. 2 is a schematic diagram of a half-section three-dimensional structure of a lens provided by the present invention;

fig. 3 is a cross-sectional view of a lens provided by the present invention;

fig. 4 is an optical path diagram of the lens provided by the present invention.

Reference numerals:

1. a lens body; 2. a light source mounting groove; 3. a first light incident surface; 4. a second light incident surface; 5. A light emitting surface; 6. a first total reflection surface; 7. a second total reflection surface; 8. a tapered hole; 9. a cylindrical bore.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

The following describes the lens of the present invention with reference to fig. 1-4, which mainly includes a lens body 1, one side of the lens body 1 is provided with a light source mounting groove 2, the inner surface of the light source mounting groove 2 forms a light incident surface, the lens body 1 is formed with a light emergent surface 5 relative to the other side of the light source mounting groove 2, the outer peripheral surface of the lens body 1 is formed with a first total reflection surface 6 connecting the light incident surface and the light emergent surface 5, the center of the lens body 1 is provided with a section of conical hole 8, the conical tip of the conical hole 8 faces the light incident surface, and the conical surface of the conical hole 8 forms a second total reflection surface 7.

Specifically, the light incident surfaces include a first light incident surface 3 formed on the wall surface of the light source mounting groove 2 and a second light incident surface 4 formed on the bottom surface of the light source mounting groove 2, the incident light of the first light incident surface 3 is totally reflected once by a first total reflection surface 6 and exits from the light exit surface 5, and the incident light of the second light incident surface 4 is totally reflected once by a second total reflection surface 7 and the first total reflection surface 6 respectively and exits from the light exit surface 5.

In the present embodiment, the first incident surface 3 and the second incident surface 4 are formed on the groove wall surface and the groove bottom surface of the light source mounting groove 2 of the lens body 1, respectively, to realize the incidence of light. The light emitting surface 5 is formed on the other side of the lens body 1 to realize the light emitting.

By forming the first total reflection surface 6 on the outer peripheral surface of the lens body 1, light control can be performed using the outer peripheral surface. The center of the lens body 1 is provided with the tapered hole 8, the conical tip of the tapered hole 8 faces the second light incident surface 4 and forms the second total reflection surface 7 on the conical surface of the tapered hole 8, and at this time, the light incident to the center of the lens body 1, namely, the light incident from the second light incident surface 4, can be reflected to the first total reflection surface 6 after being subjected to once total reflection by the second total reflection surface 7, and then is emitted from the light emitting surface 5 after being subjected to once total reflection by the first total reflection surface 6.

As shown in fig. 2, the tapered point of the tapered hole 8 means a tapered angle portion of the tapered hole 8 at the lower side in the view, and the tapered bottom surface of the tapered hole 8 means a circular portion of the tapered hole 8 at the upper side in the view.

Therefore, the light rays at the central part of the lens body 1 can be controlled through the outer peripheral surface of the lens body 1, namely the first total reflection surface 6, and the direct light outgoing at the central part of the lens body 1 can be reduced. The light rays at the central part of the lens body 1 are controlled by the second total reflection surface 7 and the first total reflection surface 6 and then are emitted from the light emitting surface 5, so that the secondary light spot angle of the emitted light rays can be reduced, the required light beam angle is achieved, and the illumination quality is improved.

It can be understood that, after entering the lens body 1 from the first light incident surface 3, a part of light emitted by the light source is totally reflected once only through the first total reflection surface 6 and then is emitted from the light emitting surface 5, after entering the lens body 1 from the second light incident surface 4, another part of light emitted by the light source is totally reflected once only through the second total reflection surface 7 and the first total reflection surface 6 respectively and then is emitted from the light emitting surface 5, the number of times of reflection of the light is small, the loss of the light generated by the light source inside the lens body 1 can be reduced, the secondary light spot angle of the emitted light is reduced, the light emitting rate of the light is improved, and the illumination quality is ensured.

As shown in fig. 3 and 4, after the light enters the lens body 1 from the first light incident surface 3, the light is directly reflected once by the first total reflection surface 6, and then exits from the light exiting surface 5. After the light enters the lens body 1 from the second light incident surface 4, the light is totally reflected once by the second total reflection surface 7, and the light totally reflected by the second total reflection surface 7 is totally reflected once again by the first total reflection surface 6 and then exits from the light exit surface 5. Thereby, the light beam of the central portion can be controlled by the first total reflection surface 6 of the outer peripheral surface. No matter from the angle of washing the wall or from the direct projection angle, adopt the lens in this embodiment to control the light of center department after, all can show and reduce vice facula angle, improve illumination quality.

Specifically, the auxiliary light spot angle of the whole lamp corresponding to the conventional lens is about 43 degrees, and the auxiliary light spot angle of the whole lamp corresponding to the lens in the embodiment is only 31 degrees, so that the auxiliary light spot angle is greatly reduced, and the reduction of the auxiliary light spot angle by more than 25 percent can be achieved.

According to the utility model provides a lens, the tank bottom surface is the convex curved surface of notch side towards light source mounting groove 2 to make the second go into plain noodles 4 formation required incident angle. As shown in fig. 2 and 3, the groove wall surface is formed as a circular table surface, and the groove wall surface is inclined in a cross section in the height direction of the lens body 1, and gradually becomes distant from the axis of the lens body 1 in the direction from the groove bottom surface to the groove opening side. The groove wall surfaces arranged in this way enable the first light incident surface 3 to form a desired incident angle.

In the present embodiment, the axis of the taper hole 8 is coaxial with the center line of the groove bottom surface and also coaxial with the center line of the lens body 1. It can be understood that the tapered hole 8 is located at the center of the entire lens body 1 to control the light in the center, and the light is reflected to the first total reflection surface 6, then is totally reflected once, and then exits from the light exit surface 5, thereby achieving the effect of controlling light.

As shown in fig. 2 and 3, the lens in this embodiment further includes a cylindrical hole 9 connected to the tapered hole 8, one end of the cylindrical hole 9 is transitionally connected to the large end of the tapered hole 8, and the other end of the cylindrical hole 9 is connected to the light emitting surface 5. The cylindrical hole 9 is arranged to extend the tapered hole 8 to a position close to the second light incident surface 4, so that the light incident from the second light incident surface 4 can be totally reflected once at the second total reflection surface 7, and the light at the center is reflected to the first total reflection surface 6 for light control. The light rays incident from the second light incident surface 4 are prevented from directly exiting from the light exiting surface 5.

After the conical hole 8 is extended to a position close to the second light incident surface 4 by arranging the cylindrical hole 9, the light rays which are incident through the first light incident surface 3 and directly irradiate the first total reflection surface 6 are staggered and connected with each other in the reflection region of the first total reflection surface 6, and the light rays which are incident through the second light incident surface 4, emit primary total reflection through the second total reflection surface 7 and irradiate the first total reflection surface 6 in the reflection region of the first total reflection surface 6. Specifically, the light incident into the lens body 1 from the first incident surface 3 is totally reflected at a first portion of the first total reflection surface 6 and then exits from the light exit surface 5, and the light incident into the lens body 1 from the second incident surface 4 is totally reflected at a second portion of the second total reflection surface and then exits from the light exit surface 5 after being totally reflected at a second portion of the first total reflection surface 6. The first part of the first total reflection surface 6 and the second part of the first total reflection surface 6 are not overlapped, and the first part of the first total reflection surface 6 and the second part of the first total reflection surface 6 completely cover the whole first total reflection surface 6, so that all positions of the first total reflection surface 6 can be fully utilized to carry out total reflection on light rays, the light rays emitted from the light emitting surface 5 are distributed more uniformly, and the angle of the auxiliary light spot is further reduced.

In the present embodiment, along the axial direction of the lens body 1, the projection of the second light incident surface 4 is equal to the projection of the conical bottom surface of the conical hole 8, or the projection of the second light incident surface 4 is located within the projection of the conical bottom surface of the conical hole 8. That is, in the axial direction of the lens body 1, the projection area of the tapered hole 8 is greater than or equal to the projection area of the second light incident surface 4, so as to ensure that the light rays incident from the second light incident surface 4 can be totally reflected together on the second total reflection surface 7 formed by the tapered surface of the tapered hole 8 and then irradiate on the first total reflection surface 6.

Specifically, the taper angle of the tapered hole 8 is a, where a is 45 ° or more, and less than 90 °. Through the angle arrangement, the light reflected by the second total reflection surface 7 can be ensured to be totally reflected by the first total reflection surface 6 and then emitted from the light emitting surface 5, all the light can be ensured to be controlled by the first total reflection surface 6, and the light reflected by the second total reflection surface 7 is prevented from being directly emitted from the light emitting surface 5.

It will be appreciated that the angle of taper a is the angle formed by a tangent plane through the axis of the tapered bore 8. As shown in fig. 3, the vertical cut of the tapered hole 8 may form a taper angle a at the apex angle of the tapered hole 8.

The angle arrangement can also ensure that the incident light of the second light incident surface 4 does not exit from the cylindrical hole 9 after being totally reflected once by the second total reflection surface 7 and the first total reflection surface 6 respectively, so as to ensure that no light exits from the center of the lens body 1.

For example, the taper angle a may be set to 45 °, and the light beam that passes through the first total reflection surface 6 of the tapered hole 8 at this angle is totally reflected and then exits from the light exit surface 5, so that it is ensured that all the light beams can be controlled by the first total reflection surface 6, and the light beam reflected by the second total reflection surface 7 is prevented from directly exiting from the light exit surface 5. Meanwhile, the cone angle of 45 degrees can also ensure that the incident light of the second light incident surface 4 cannot be emitted from the cylindrical hole 9 after being subjected to primary total reflection respectively by the second total reflection surface 7 and the first total reflection surface 6, so as to ensure that no light is emitted from the center of the lens body 1.

For example, the taper angle a may be set to 60 °, and the light beam that passes through the first total reflection surface 6 of the tapered hole 8 at this angle is totally reflected and then exits from the light exit surface 5, so that it is ensured that all the light beams can be controlled by the first total reflection surface 6, and the light beam reflected by the second total reflection surface 7 is prevented from directly exiting from the light exit surface 5. Meanwhile, the cone angle of 60 degrees can also ensure that the incident light of the second light incident surface 4 cannot be emitted from the cylindrical hole 9 after being subjected to primary total reflection respectively by the second total reflection surface 7 and the first total reflection surface 6, so as to ensure that no light is emitted from the center of the lens body 1.

In the embodiment, the lens body 1 is an integrally formed lens, and compared with the existing combined lens, the integrally formed lens can reduce the loss of light efficiency, ensure the illumination effect, and facilitate the processing of the lens body 1. Specifically, the lens body 1 of the integrated structure is formed by an injection molding process.

The diameter of the light-emitting surface 5 of the integrated lens body 1 is about 2 times of the height of the lens body 1, so that the lens body 1 is more harmonious in vision and more attractive.

Specifically, the lens body 1 is a revolving body, so that the lens body 1 is more beautiful and convenient to process, and correspondingly, the light emitting surface 5 is an annular plane, the first total reflection surface 6 is a revolution surface, and the first total reflection surface 6 is a continuous curved surface. The first total reflection surface 6 with the continuous curved surface can control light better, and compared with the existing total reflection surface arranged in a staged manner, the control effect of the continuous curved surface on light rays is more excellent in the embodiment.

By arranging the first total reflection surface 6 as a continuous curved surface, the appearance of the lens body 1 is more attractive.

As shown in fig. 3, the first total reflection surface 6 is gradually away from the axis of the lens body 1 along the direction from the light incident surface to the light emitting surface 5. The first total reflection surface 6 arranged obliquely controls light, and an excellent light control effect is achieved.

Specifically, the first total reflection surface 6 comprises an arc-shaped section and a straight line section which are integrally formed, the arc-shaped section is close to the light inlet surface, the straight line section is close to the light outlet surface 5, the arc-shaped section and the straight line section are matched in design, light rays of the central portion can be further controlled, and the angle of the auxiliary light spot is further reduced.

On the other hand, the utility model provides a lighting lamp, including light source and the lens in the aforesaid embodiment, wherein, the light source is installed in light source mounting groove 2.

Light emitted by the light source is incident into the lens body 1 from the first light incident surface 3 and is emitted from the light emitting surface 5 after being subjected to primary total reflection through the first total reflection surface 6, and is incident into the lens body 1 from the second light incident surface 4 and is subjected to primary total reflection through the second total reflection surface 7 and the first total reflection surface 6 respectively and is emitted from the light emitting surface 5.

Therefore, the light rays at the central part of the lens body 1 can be controlled through the outer peripheral surface of the lens body 1, namely the first total reflection surface 6, and the direct light outgoing at the central part of the lens body 1 can be reduced. The light rays at the central part of the lens body 1 are controlled by the second total reflection surface 7 and the first total reflection surface 6 and then are emitted from the light emitting surface 5, so that the secondary light spot angle of the emitted light rays can be reduced, the required light beam angle can be achieved, and the illumination quality is improved.

In this embodiment, the light source may be an LED lamp, and the lighting fixture mainly includes a spot lamp, a stage lamp, a decorative lamp, and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A lens is characterized by comprising a lens body, wherein one side of the lens body is provided with a light source installation groove, the inner surface of the light source installation groove forms a light inlet surface, the other side of the lens body opposite to the light source installation groove forms a light outlet surface, the outer peripheral surface of the lens body forms a first total reflection surface for connecting the light inlet surface and the light outlet surface, the center of the lens body is provided with a section of conical hole, the conical tip of the conical hole faces the light inlet surface, and the conical surface of the conical hole forms a second total reflection surface;

the light incident surface comprises a first light incident surface formed on the groove wall surface of the light source mounting groove and a second light incident surface formed on the groove bottom surface of the light source mounting groove, incident light of the first light incident surface is subjected to primary total reflection through the first total reflection surface and is emitted from the light emitting surface, and incident light of the second light incident surface is subjected to primary total reflection through the second total reflection surface and the first total reflection surface respectively and is emitted from the light emitting surface.

2. The lens of claim 1, wherein the groove bottom surface is a curved surface outwardly convex toward the notch side of the light source mounting groove.

3. The lens of claim 1, wherein the axis of the tapered hole is coaxial with the centerline of the groove bottom surface.

4. The lens of claim 1, further comprising a cylindrical hole connected to the tapered hole, wherein one end of the cylindrical hole is transitionally connected to the large end of the tapered hole, and the other end of the cylindrical hole is connected to the light emitting surface.

5. The lens of claim 1, wherein the tapered hole has a taper angle a, wherein a is 45 ° or greater and less than 90 °.

6. The lens of any of claims 1-5, wherein along the axis of the lens body, the projection of the second entrance surface is equal to or within the projection of the tapered bottom surface of the tapered hole.

7. The lens according to any one of claims 1 to 5, wherein the first total reflection surface is a surface of revolution, and the first total reflection surface is a continuous curved surface.

8. The lens of claim 7, wherein the first total reflection surface is gradually away from an axis of the lens body along a direction from the light incident surface to the light emitting surface.

9. The lens of any one of claims 1 to 5, wherein the light rays incident through the first light incident surface and directly illuminating the first total reflection surface are staggered and connected with each other in the reflection region of the first total reflection surface, and the light rays incident through the second light incident surface and emitting a total reflection through the second total reflection surface and illuminating the first total reflection surface are staggered and connected with each other in the reflection region of the first total reflection surface.

10. A lighting fixture comprising a light source and the lens of any one of claims 1-9, said light source mounted to said light source mounting slot.

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