CN218954725U - Optical reflector of court lamp and lamp with same - Google Patents

Abstract

The utility model relates to the technical field of LED court illumination, in particular to an optical reflector and an optical component of a court lamp, wherein the reflector comprises a reflecting wall, a plurality of polyhedral bulb units and two structural supporting walls, the bulb units are arranged on the inner side surface of the reflecting wall to form a reflecting surface, the two structural supporting walls are arranged on two sides of the reflecting wall in parallel, the reflecting wall is of a free-form surface structure, the whole structure is similar to a scallop shape, and the left end and the right end of the reflecting wall respectively extend to the two structural supporting walls.

Description

Optical reflector of court lamp and lamp with same

Technical Field

The utility model relates to the technical field of LED court illumination, in particular to an optical reflector of a court lamp and a lamp with the reflector.

Background

With the increasing popularity of lighting concepts in new times such as 'light environment', 'light health', the general public will feel the daily light environment of himself more, and with the popularization of body building of the whole people, some design problems of the existing court lamps float on the water surface more.

Under the condition of arranging lamps on two sides of a court, the problems existing in the design scheme of the existing court lamps are as follows:

(1) A centrally symmetric TIR-like or TIR-like symmetric illumination system is used, typically in such a way that the oblique mounting angles are chosen such that the light rays are projected onto the plane of use. The technical scheme has the advantages that the optical system components are simple in design, the size of the luminous surface is large in adjustability and excellent in glare control, the defect that the cross section of light on a using plane is a conical cross section, a sport field mainly designed as a rectangle is difficult to pave, more lamps are needed to meet the lighting design requirement, and the illumination uniformity is not ideal.

(2) The batwing type light distribution lighting system or the lighting system with single side batwing type light distribution by using the street lamp lens scheme is generally used in such a way that the light emitting plane is parallel to the using plane. The technical scheme has the advantages that the illuminance on the same section is equal, the illuminance uniformity of the field is excellent, the defect is that the batwing type light distribution belongs to a large-space illumination light distribution type, the glare control aspect is insufficient, and field users can always directly see the plane of the light emitting surface, the influence of disabling glare is easy to generate, and the user experience is poor.

Therefore, there is a need to improve the existing court lamp lighting scheme with double-sided lamp arrangement, or improve the illuminance uniformity of the court, or improve the lamp glare problem to solve the existing problem.

Disclosure of Invention

The utility model provides an optical reflector of a court lamp aiming at the defects in the prior art, and after the light from a light-emitting plane is incident on a reflecting wall with a free-form surface shape, the light is deflected in a directional manner, so that the light can be reasonably distributed on a using plane of the court; meanwhile, the scale units paved on the inner side surface of the reflecting wall can further improve the illumination uniformity of the whole field and the illumination comfort.

The utility model further aims to provide a lamp, which adopts the optical reflector with the curved surface shape, so that the experience of a user is improved and the product cost is reduced under the condition of realizing omnibearing illumination.

The utility model realizes the aim through the following technical scheme:

the utility model provides an optical reflector of court lamp, includes reflecting wall, a plurality of multifaceted bulb first unit and two structural support walls, bulb first unit is located the medial surface of reflecting wall forms the reflecting surface, two structural support walls are parallel to each other locates the both sides of reflecting wall, the reflecting wall is free curved surface structure, and overall structure is similar to scallop shape, the both ends extend respectively to two structural support walls about the reflecting wall.

Further, mounting flange surfaces extend outwardly along the top ends of the reflective walls and the structural support walls.

Further, the reflecting wall, the structural supporting wall and the mounting flange face are integrally molded by injection molding, so that the reflector body is formed.

Further, the reflector body is PET, PMMA, optical PC or Al1090 aluminum.

Further, an electroplated layer is plated on the reflecting surface.

Furthermore, the electroplated layer is made of pure aluminum.

Further, the scale units are uniformly distributed on the inner side of the reflecting wall.

Further, the scale units are trapezoid, triangle or rectangle.

Further, the squama units are distributed in fibonacci number columns.

A luminaire comprising a light source and an optical reflector as described above.

Based on the technical scheme, the utility model has the following technical effects:

(1) The optical reflector of the court lamp provided by the utility model has the advantages that the reflection wall with the free-form surface shape is arranged, after entering from the light inlet side and irradiating the reflection surface on the surface of the reflection wall, the incident light is deflected in the direction of C90-C270, so that the light can reach the center line area of the court, and meanwhile, the curvature of the free-form surface of the reflection wall in the direction of C0-C180 shows a gentle centripetal direction change, so that the incident light also has symmetrical and longer light paths on the plane of C0-C180, and the two illumination directions can lead the light to be reasonably distributed on the cross section and the longitudinal surface of the court or the playground mainly designed in a rectangular shape, thereby improving the illumination level, reducing the number of light sources and lowering the cost under the same condition.

(2) The lamp adopts the reflector with the free-form surface modeling, improves the illumination of the field through the scale unit, greatly reduces the product cost, and has the cost of only 36 percent of the batwing type light distribution system, and the field average illuminance value is 96 percent of the batwing type light distribution optical system under the condition of the same power density.

Drawings

Fig. 1 is a schematic structural view of an optical reflector of the court lamp of the present utility model.

Fig. 2 is a partial cross-sectional view of an optical reflector of the court light of the present utility model.

Fig. 3 is an optical schematic of the optical reflector of the court light of the present utility model in the plane C90-C270.

Fig. 4 is an optical schematic of the optical reflector of the court light of the present utility model in the C0-C180 plane.

Detailed Description

The utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1.

As shown in fig. 1-2, this embodiment provides an optical reflector of court lamp, including reflecting wall 1, a plurality of multifaceted scale unit 2 and two structural support walls 3, scale unit 2 locates the medial surface of reflecting wall 1 forms the reflecting surface, and two structural support walls 3 are parallel to each other locates the both sides of reflecting wall 1 for supporting reflecting wall 1, guarantee the planarization of reflecting wall 1, realize the perfect refraction of light, reflecting wall 1 is free-form surface structure, and the overall structure is the concave surface of spotlight, its the left and right sides both ends of reflecting wall 1 extend respectively to two structural support walls 3.

The working principle of the optical reflector of the court lamp provided by the utility model is shown in fig. 3-4, because of the scallop-like structure of the reflecting wall 1, after entering from the light inlet side and irradiating the scale unit, the incident light can deflect in a longer optical path in the direction of C90-C270, so that the light can reach the center line area of the court, and meanwhile, because the curvature of the free curved surface of the reflecting wall in the direction of C0-C180 shows a slower centripetal direction change, the incident light also has symmetrical and longer optical paths on the plane of C0-C180, and the two illumination directions can lead the light to be reasonably distributed on the cross section and the longitudinal surface of the court or the playground which is mainly designed in a rectangular shape, thereby improving the illumination range and illumination. Meanwhile, the light source plane positioned at the light inlet side is in a vertical relation with the light outlet plane processed by the optical reflector, so that the disabling glare effect caused by visual high-energy-density light emitting surface of a field user can be avoided.

Wherein, along the top of the reflecting wall 1 and the structural supporting wall 3, a mounting flange surface 4 is arranged outwards, and the mounting flange surface 4 is used for connecting the reflector with other elements of the optical component.

For the convenience of production, the reflecting wall 1, the structural supporting wall 3 and the mounting flange face 4 are molded integrally by injection molding to form a reflector body, and the reflector body can be made of any one of PET, PMMA, optical PC or Al1090 aluminum.

Wherein, plating layer 6 is plated on reflection layer 5, plating layer 6 is pure aluminium material.

The scale units 2 are uniformly distributed on the inner side of the reflecting wall 1, the scale units 2 are trapezoid, triangle or rectangle and are distributed in fibonacci number columns, light emitted by a light source can be mixed, so that the gap illuminance between lamps can be increased, a dark area between lamps is reduced, the illumination uniformity of the whole field is improved, and the illumination comfort is improved.

Example 2.

The embodiment provides a lamp, which comprises a light source and any one of the optical reflectors provided by the embodiment. The light source can be an LED, the optical component can form illumination light without auxiliary light spots on an illumination surface, the light emergent efficiency is high, the reflector with a free-form surface shape is adopted, the illumination of the field is improved through the arranged scale unit, the product cost is greatly reduced, the cost is only 36% of that of the batwing type light distribution system, the field average illuminance value is 96% of that of the batwing type light distribution optical system under the condition of the same power density, and the field uniformity is equal to that of the batwing type light distribution optical system due to the effect of scale design.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; combinations of features of the above embodiments or in different embodiments are also possible within the idea of the utility model, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.

Claims (9)

1. The utility model provides an optical reflector of court lamp, its characterized in that includes reflecting wall, a plurality of multifaceted bulb first unit and two structural support walls, bulb first unit is located the medial surface of reflecting wall forms the reflection stratum, two structural support walls are parallel to each other locates the both sides of reflecting wall, the reflecting wall is free curved surface structure, and overall structure is like scallop shape, the left and right sides of reflecting wall extends to two respectively structural support walls.

2. The optical reflector of a court light of claim 1, wherein a mounting flange surface extends outwardly along the top end of the reflective wall and the structural support wall.

3. The optical reflector of a court light of claim 2, wherein the reflective wall, the structural support wall, and the mounting flange face are injection molded integrally to form the reflector body.

4. A field light optical reflector as claimed in claim 3, characterised in that the reflector body is PET, PMMA, optical grade PC or Al1090 aluminium.

5. The optical reflector of a court light of claim 1, wherein the reflective layer is coated with an aluminum film.

6. The optical reflector of a court light as set forth in claim 1, wherein said scale units are uniformly disposed inside the reflective wall.

7. The optical reflector of a court light of claim 1, wherein the bulb units are trapezoidal, triangular, or rectangular.

8. The optical reflector of a court light of claim 1, wherein the scale units are distributed in fibonacci numbers.

9. A luminaire comprising a light source and an optical reflector as claimed in any one of claims 1-8.

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