CN218119651U - Optical structure and lighting lamp - Google Patents

Abstract

The utility model relates to the field of lighting technology, the utility model provides an optical structure and illumination lamps and lanterns, this optical structure is including reflection of light cup, reflection of light cup is equipped with ellipsoid shape cavity, the both ends of ellipsoid shape cavity are uncovered, the light mouth is gone into in the uncovered formation of one end, the uncovered formation light outlet of the other end, ellipsoid shape cavity has first focus position and second focus position, it is located first focus position department to go into the light mouth, the light outlet is located second focus position department, first focus position is suitable for the installation light source, reflection of light cup's inner peripheral surface forms the plane of reflection, some incident light of light source is suitable for to take place primary reflection and follow the second focus position outgoing of light mouth by the plane of reflection, another part incident light of light source is suitable for from the direct outgoing of light outlet. The cambered surface through ellipsoid cavity forms the plane of reflection, controls light to some incident light, realizes the aperture light-emitting, has avoided appearing stray light, has prevented dazzling the production of light, has promoted optical structure's vision anti-dazzle dizzy effect.

Description

Optical structure and lighting lamp

Technical Field

The utility model relates to the field of lighting technology, especially, relate to an optical structure and illumination lamps and lanterns.

Background

The existing optical structure usually adopts the principle of refraction in the light control process, but because of the condition of interface reflection, stray light exists in emergent light, so that glare is formed, and the lighting effect is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an optical structure for there is stray light and leads to forming to dazzle light problem in the outgoing light of solving optical structure among the prior art, can avoid appearing stray light, improves the anti-dazzle effect of vision.

The utility model also provides an illumination lamps and lanterns.

The utility model provides an optical structure, including the reflection of light cup, the reflection of light cup is equipped with ellipsoid cavity, the both ends of ellipsoid cavity are uncovered, and one end is uncovered and is formed into the light inlet, and the other end is uncovered and is formed out-light port, the ellipsoid cavity has first focus position and second focus position, the light inlet is located first focus position department, the out-light port is located second focus position department, first focus position is suitable for the installation light source;

the inner peripheral surface of the light reflecting cup forms a reflecting surface, a part of incident light of the light source is suitable for being reflected once by the reflecting surface and emitted from the second focus position of the light outlet, and the other part of incident light of the light source is suitable for being directly emitted from the light outlet.

According to the utility model provides an optical structure, go into the place plane of light mouth with the place plane of light-emitting window all is perpendicular to the major axis of ellipsoid shape cavity.

According to the utility model provides a pair of optical structure, anti-light cup's tip by it has the changeover portion to go into the light mouth along its axial extension, the length of changeover portion and the high looks adaptation of light source.

According to the utility model provides a pair of optical structure, anti-light cup includes first cup and second cup, first cup with the butt joint of second cup is in order to form in inside ellipsoid shape cavity.

According to the utility model provides a pair of optical structure, first cup with the axis of second cup all with the major axis of ellipsoid shape cavity is coaxial.

According to the utility model provides a pair of optical structure, first cup with the axis of second cup all with the minor axis of ellipsoid shape cavity is coaxial.

According to the utility model provides a pair of optical structure, first cup with second cup orientation terminal surface each other is equipped with joint spare and draw-in groove respectively, and passes through joint spare with the draw-in groove joint.

According to the optical structure provided by the invention, the inner circumferential surface of the reflection cup is provided with the vacuum plating layer, and the surface of the vacuum plating layer forms the reflecting surface.

The utility model also provides an illumination lamps and lanterns, including the light source and as aforementioned optical structure, the light source be suitable for install in go into the light mouth first focus position department.

According to the utility model provides a pair of illumination lamps and lanterns still includes the shell, the inside mounting groove that is equipped with of shell, anti-light cup with the light source be suitable for install in the mounting groove.

According to the utility model provides a pair of lighting lamp, the tank bottom surface of mounting groove is connected with the circuit board, the light source install in the circuit board, the notch department of mounting groove be equipped with to the annular butt portion that anti-light cup major axis direction extends, anti-light cup's one end with circuit board looks butt, anti-light cup's the other end with annular butt portion looks butt.

According to the utility model provides a pair of lighting lamp follows go into the light mouth extremely the direction of light-emitting window, the inner peripheral surface of annular butt portion is kept away from gradually the major axis of anti-light cup.

The embodiment of the utility model provides an optical structure is through at the inside ellipsoid-shaped cavity that forms of anti-light cup to make income light mouth and light-emitting opening be located first focus position department and second focus position department respectively, form the plane of reflection at anti-light cup's inner peripheral surface, the second focus position outgoing from the light-emitting opening after partly incident ray of light source can take place once to reflect through the plane of reflection, another part incident ray of light source can directly follow the direct outgoing of light-emitting opening. Cambered surface through ellipsoid cavity forms the plane of reflection, accuse light is carried out to partial incident ray, make the light after once reflecting can both follow the second focus position outgoing of light-emitting window, realize the aperture light-emitting, stray light has been avoided appearing, the production of dazzling light has been prevented, the visual anti-dazzle dizzy effect of optical structure has been promoted, another partial incident ray is direct to follow the outgoing light of light-emitting window outgoing moreover, do not need to control light through optical structure, avoid energy loss, and can not produce interference and influence to aforementioned partial incident ray.

The embodiment of the utility model provides a lighting lamp, through using above-mentioned optical structure, the cambered surface of the ellipsoid cavity of reflection of light cup forms the plane of reflection, can control light to partial incident ray, make the light after once reflecting can both follow the second focus position outgoing of light-emitting window, realize the aperture light-emitting, stray light has been avoided appearing, the production of dazzling light has been prevented, optical structure's vision anti-dazzle dizzy effect has been promoted, and another part incident ray is direct from the outgoing light-emitting window outgoing, need not control light through optical structure, avoid energy loss, and can not interfere and influence aforementioned partial incident ray production.

Drawings

In order to clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in 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 other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic perspective view of an optical structure provided in the present invention;

fig. 2 is a cross-sectional view of an optical structure provided by the present invention;

fig. 3 is a schematic perspective view of a first cup in the optical structure provided by the present invention;

fig. 4 is a schematic perspective view of a second cup in the optical structure provided by the present invention;

fig. 5 is a light path diagram of the lighting fixture provided by the present invention;

fig. 6 is a light spot diagram of the lighting fixture provided by the present invention;

fig. 7 is a polar light distribution curve diagram of the lighting fixture provided by the present invention.

Reference numerals:

100. a light reflecting cup; 110. an ellipsoidal cavity; 120. a light inlet; 130. a light outlet; 140. a reflective surface; 150. a first cup body; 160. a second cup body; 170. a clamping piece; 180. a card slot; 200. a transition section; 300. a light source; 400. a housing; 410. mounting grooves; 420. an abutting portion; 500. a circuit board.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the 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," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Embodiments of the optical structure of the present invention are described below in conjunction with fig. 1-7.

As shown in fig. 1 and fig. 2, the optical structure in this embodiment mainly includes a reflective cup 100, the reflective cup 100 has an ellipsoidal cavity 110, two ends of the ellipsoidal cavity 110 are open, one end of the ellipsoidal cavity is open to form a light inlet 120, and the other end of the ellipsoidal cavity is open to form a light outlet 130, the ellipsoidal cavity 110 has a first focus position and a second focus position, the light inlet 120 is located at the first focus position, the light outlet 130 is located at the second focus position, and the first focus position is suitable for installing a light source 300.

The inner circumferential surface of the light reflecting cup 100 forms a reflecting surface 140, a part of incident light of the light source 300 is suitable for being reflected once by the reflecting surface 140 and emitted from the second focal position of the light outlet 130, and another part of incident light of the light source 300 is suitable for being directly emitted from the light outlet 130.

In this embodiment, by forming the ellipsoidal cavity 110 inside the reflector cup 100, and making the light inlet 120 and the light outlet 130 respectively located at the first focal position and the second focal position, and forming the reflecting surface 140 on the inner circumferential surface of the reflector cup 100, a part of incident light of the light source 300 can be emitted from the second focal position of the light outlet 130 after being reflected once by the reflecting surface 140, and another part of incident light of the light source 300 can be directly emitted from the light outlet 130. As shown in fig. 5, the arc surface of the ellipsoidal cavity 110 forms the reflecting surface 140 to control part of incident light, so that the light after being reflected once can be emitted from the second focus position of the light outlet 130, thereby realizing small-hole light emission, avoiding stray light, preventing glare generation, and improving the visual anti-glare effect of the optical structure. The other part of incident light directly exits from the light outlet without light control through an optical structure, so that energy loss is avoided, and interference and influence on the part of incident light are avoided.

The first focal position and the second focal position of the ellipsoidal cavity 110 are determined according to the specific size of an ellipsoid, and based on the structure of the ellipsoidal cavity 110 inside, the reflecting surface 140 of the reflecting cup 100 is an ellipsoidal arc surface, so that when the light source 300 generates incident light from the first focal position, the incident light is reflected once by the reflecting surface 140 and then is emitted from the second focal position of the light outlet 130 all the time, and thus, the light is emitted from a small hole.

Compared with the conventional optical structure in which the incident light of the light source 300 needs to penetrate into the optical structure, and then passes out of the optical structure after controlling the light in the optical structure, in the reflective cup 100 of the embodiment, the incident light of the light source 300 does not need to penetrate through the reflective cup 100, and the light control can be completed only by generating a single reflection on the inner surface of the reflective cup 100. The light control mode is simple, and the problems of stray light and glare caused by interface reflection in the refraction process of the traditional optical structure are solved. Stray light is avoided, generation of glare is prevented, the visual anti-glare effect of the optical structure is improved, and the illumination quality is improved. And the other part of incident light rays are directly emitted from the light outlet without light control through an optical structure, so that energy loss is avoided, and interference and influence with the part of incident light rays are avoided.

In this embodiment, the plane of the light inlet 120 and the plane of the light outlet 130 are perpendicular to the long axis of the ellipsoidal cavity 110. It can be understood that, in this case, it is equivalent to an ellipsoidal shell that is cut at the first focal point and the second focal point along a direction perpendicular to the major axis of the ellipsoid to form the reflective cup 100. Such a structure enables the reflective surface 140 to sufficiently control light for incident light to the side edge, thereby avoiding a light control blind area.

According to the utility model provides an optical structure, the tip of anti-light cup 100 has changeover portion 200 by going into light mouthful 120 along its axial extension, the length of changeover portion 200 and the high looks adaptation of light source 300. It can be understood that, the light source 300 has a certain thickness, and when the light source 300 is installed, it is required to ensure that the light emitting surface of the light source 300 is flush with the position of the light inlet 120, and the light source 300 is located at the first focal point. The transition section 200 is configured to adapt to the thickness of the light source 300, so as to ensure that the light emitting surface of the light source 300 is flush with the light inlet 120. Wherein, the transition section 200 is integrally formed with the reflective cup 100.

The retro-reflective cup 100 includes a first cup 150 and a second cup 160, the first cup 150 and the second cup 160 abutting to form an ellipsoidal cavity 110 therein.

In this embodiment, the retroreflective cup 100 is provided in two parts, namely, a first cup 150 and a second cup 160, to facilitate demolding. It will be appreciated that the retroreflective cup 100 having the ellipsoidal cavity 110 is difficult to mold by direct injection molding, and the retroreflective cup 100 can be obtained by injection molding the first and second cups 150 and 160 separately after being divided into two parts, and then connecting the first and second cups 150 and 160 after being separated from each other by injection molding.

In one embodiment, as shown in fig. 3 and 4, the axis of each of the first cup 150 and the second cup 160 is coaxial with the major axis of the ellipsoidal cavity 110. In the perspective of fig. 1, the first cup 150 and the second cup 160 are now butted up and down to form the retro-reflective cup 100 having the ellipsoidal cavity 110, and in this embodiment, the first cup 150 and the second cup 160 are configured like cups.

In another embodiment, the axis of the first and second cups 150, 160 are both coaxial with the minor axis of the ellipsoidal cavity 110. In the perspective of fig. 1, the first cup 150 and the second cup 160 are butted right and left to form the retroreflective cup 100 having the ellipsoidal cavity 110, and in this embodiment, the first cup 150 and the second cup 160 are shaped like a kidney.

As shown in fig. 3 and 4, the end surfaces of the first cup 150 and the second cup 160 facing each other are respectively provided with a snap member 170 and a snap groove 180, and are snapped by the snap member 170 and the snap groove 180.

When the first cup 150 and the second cup 160 are butted up and down, the end surfaces of the first cup 150 and the second cup 160 are both circular ring surfaces. Set up two at least joint spare 170 at the ring surface of first cup 150, set up two at least draw-in grooves 180 at the ring surface of second cup 160, form the joint through two at least joint spare 170 and two at least draw-in grooves 180 to realize the interconnect of first cup 150 and second cup 160, and avoid appearing rotating between first cup 150 and the second cup 160. Of course, at least two locking grooves 180 may be formed on the circular surface of the first cup 150, and at least two locking members 170 may be formed on the circular surface of the second cup 160, so that the first cup 150 and the second cup 160 can be connected to each other.

When the first cup 150 and the second cup 160 are butted left and right, the end surfaces of the first cup 150 and the second cup 160 are both two arc surfaces. At least one clamping piece 170 is arranged on each arc surface of the first cup body 150, at least one clamping groove 180 is arranged on each arc surface of the second cup body 160, and clamping is formed through the clamping pieces 170 and the clamping grooves 180, so that the first cup body 150 and the second cup body 160 are connected with each other. Of course, at least one locking groove 180 may be disposed on each arc surface of the first cup 150, and at least one locking member 170 may be disposed on each arc surface of the second cup 160, so that the first cup and the second cup can be connected to each other.

In another embodiment of the present invention, the first cup 150 and the second cup 160 can also be butted by bonding, for example, an adhesive or an adhesive tape can be disposed on the end surface of the first cup 150 facing the second cup 160 to achieve bonding connection.

In another embodiment of the present invention, the first cup 150 and the second cup 160 can be connected by a screw thread, which is suitable for connecting the first cup 150 and the second cup 160 up and down. For example, the end faces of the first cup 150 and the second cup 160 facing each other may be respectively provided with an annular connecting member and an annular groove, the inner peripheral surface or the outer peripheral surface of the annular connecting member may be provided with a first thread, and the wall surface of the annular groove may be provided with a second thread matching the first thread to realize the threaded connection between the two, and the annular connecting member is assembled in the annular groove at this time, so that the joint between the end faces of the first cup 150 and the second cup 160 is not affected.

In another embodiment of the present invention, the first cup 150 and the second cup 160 can be coupled together by a fastener. Can set up the engaging lug respectively at the outer peripheral face of first cup 150 and second cup 160, set up the connecting hole on the engaging lug respectively, when first cup 150 and second cup 160 dock each other, two engaging lugs paste mutually and two connecting holes are aligned, utilize the fastener to wear to locate the fixed connection between two connecting holes realization first cup 150 and the second cup 160.

In the present embodiment, the inner circumferential surface of the reflector cup 100 is formed with the reflecting surface 140 by vacuum plating. That is, the inner circumferential surface of the reflector cup 100 is provided with a vacuum plating layer, and the surface of the vacuum plating layer forms the reflecting surface 140.

On the other hand, the present invention further provides an illumination fixture, which includes the light source 300 and the optical structure in the foregoing embodiments, wherein the light source 300 is suitable for being installed at the first focus position of the light inlet 120.

In this embodiment, through using above-mentioned optical structure, reflecting surface 140 of the ellipsoidal cambered surface of reflection cup 100 can control light to some incident light, make the light after once reflection can both follow the second focus position outgoing of light-emitting opening 130, realize the aperture light-emitting, stray light has avoided appearing, the production of dazzling light has been prevented, optical structure's vision anti-dazzle dizzy effect has been promoted, and another some incident light is direct to be followed the light-emitting opening outgoing, need not control light through optical structure, avoid energy loss, and can not produce interference and influence to aforementioned some incident light.

As shown in fig. 5, the lighting fixture in this embodiment further includes a housing 400, a mounting groove 410 is formed inside the housing 400, and the reflective cup 100 and the light source 300 are mounted in the mounting groove 410. The casing 400 can protect the reflective cup 100 and the light source 300, and prevent the reflective cup 100 and the light source 300 from directly leaking to the outside.

The circuit board 500 is connected to the bottom surface of the mounting groove 410, the light source 300 is mounted on the circuit board 500, the notch of the mounting groove 410 is provided with an annular abutting portion 420 extending in the long axis direction of the reflective cup 100, one end of the reflective cup 100 abuts against the circuit board 500, and the other end of the reflective cup 100 abuts against the annular abutting portion 420. The position of the reflective cup 100 can be fixed by the annular abutting portion 420 matching with the circuit board 500 at the bottom of the mounting groove 410.

Wherein the annular abutting portion 420 extends to a position flush with the light outlet 130.

The annular abutment 420 is adapted to be integrally formed with the housing 400.

The circuit board 500 is a pcb, the light source 300 is an LED light source 300, and the LED light source 300 is directly electrically connected to the pcb.

As shown in fig. 5, the inner circumferential surface of the annular abutting portion 420 is gradually away from the long axis of the light reflecting cup 100 along the direction from the light inlet 120 to the light outlet 130. Thereby avoiding the emergent light and avoiding the annular abutting part 420 from influencing the emergent light.

As shown in the spot diagram of fig. 6 and the polar light distribution graph of fig. 7, it can be known through experiments that the illumination quality of the illumination lamp is significantly improved after the optical structure in the foregoing embodiment is adopted.

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 the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art 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 (12)

1. An optical structure is characterized by comprising a reflecting cup, wherein the reflecting cup is provided with an ellipsoidal cavity, two ends of the ellipsoidal cavity are open, one end of the ellipsoidal cavity is open to form a light inlet, the other end of the ellipsoidal cavity is open to form a light outlet, the ellipsoidal cavity is provided with a first focus position and a second focus position, the light inlet is positioned at the first focus position, the light outlet is positioned at the second focus position, and the first focus position is suitable for mounting a light source;

the inner peripheral surface of the light reflecting cup forms a reflecting surface, a part of incident light of the light source is suitable for being reflected once by the reflecting surface and emitted from the second focus position of the light outlet, and the other part of incident light of the light source is suitable for being directly emitted from the light outlet.

2. The optical structure of claim 1, wherein the plane of the light inlet and the plane of the light outlet are perpendicular to the major axis of the ellipsoidal cavity.

3. An optical structure as claimed in claim 1, wherein the end of the reflector cup extends from the light inlet along the axial direction thereof with a transition section, and the length of the transition section is adapted to the height of the light source.

4. The optical structure of any one of claims 1-3, wherein the reflector cup comprises a first cup and a second cup, the first cup and the second cup abutting to form the ellipsoidal cavity therein.

5. The optical structure of claim 4, wherein the axes of the first and second cups are coaxial with the major axis of the ellipsoidal cavity.

6. The optical structure of claim 4, wherein the axes of the first and second cups are coaxial with the minor axis of the ellipsoidal cavity.

7. The optical structure according to claim 4, wherein the end surfaces of the first cup body and the second cup body facing each other are respectively provided with a clamping member and a clamping groove, and are clamped by the clamping member and the clamping groove.

8. An optical structure according to any one of claims 1 to 3, wherein the inner peripheral surface of the reflector cup is provided with a vacuum-plated layer, the surface of the vacuum-plated layer forming the reflecting surface.

9. A lighting fixture, comprising a light source and the optical structure of any one of claims 1-7, wherein the light source is adapted to be mounted at the first focal position of the light inlet.

10. The lighting fixture of claim 9, further comprising a housing having a mounting slot therein, the reflector cup and the light source being adapted to fit within the mounting slot.

11. The lighting fixture of claim 10, wherein a circuit board is connected to a bottom surface of the mounting groove, the light source is mounted on the circuit board, an annular abutting portion extending in a direction of a long axis of the reflector cup is disposed at a notch of the mounting groove, one end of the reflector cup abuts against the circuit board, and the other end of the reflector cup abuts against the annular abutting portion.

12. A lighting fixture as recited in claim 11, wherein an inner peripheral surface of said annular abutment is spaced progressively away from a major axis of said reflector cup in a direction from said light inlet to said light outlet.

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