CN203273678U - Conical optical mask of LED (Light Emitting Diode) lamp - Google Patents

Abstract

The utility model belongs to the technical field of lamp masks, in particular to a conical LED lamp optical mask. The utility model comprises one or more optical mask units; the optical mask unit includes a cone and several circular platforms, the cones are stacked on the top, and the circular platforms are stacked under the cones according to the radius of the bottom surface from small to large; the bottom surface of the cone and the The radius of the upper bottom surface of each adjacent circular platform is the same, and the radius of the lower surface of each circular platform is the same as that of the upper bottom surface of the circular platform below it. The utility model can reasonably distribute the luminous flux of the LED light source, thereby increasing the utilization rate of the luminous flux and improving the lighting quality of the LED lamp.

Description

Cone LED lamp optical mask

technical field

The utility model belongs to the technical field of lamp masks, in particular to a conical LED lamp optical mask.

Background technique

With the continuous improvement of light efficiency and power of light emitting diodes (Light Emitting Diode, LED), the era of semiconductor lighting, the fourth generation of lighting, is coming. LED has many advantages: such as low operating voltage, high luminous efficiency, stable performance, long life, good monochromaticity, and good color rendering. LED has been widely used in liquid crystal backlight, daily lighting, traffic lights, automotive lighting and street lighting and other fields. But LED is not equal to LED lamps. LED itself is a point light source, and high-power LED brightness is too high to produce glare, so LEDs cannot be directly used in lighting fixtures.

In the field of LED lighting, many manufacturers only pursue the electrical effects of LED street lights and ignore the optical effects, that is, they only care about whether the light source can be lit normally without considering whether the optical aspects meet the optical requirements. As my country and some provinces and cities have put forward standard documents for LED lamps, the relevant standards have become more and more clear. Only through secondary optical design can the quality of LED lamps be improved. The secondary optical design of LED lamps is one of the most important technologies in the field of LED lighting.

The traditional lamp lighting system has carried out the design and exploration of optical design, mainly using reflectors or lenses to realize the control of lamp spot distribution, light intensity distribution and uniformity. Due to the great difference between LED and traditional light sources, how to reasonably distribute the luminous flux of LED light sources and improve the utilization rate of luminous flux is an urgent problem in the field of LED lighting.

Utility model content

The technical problem to be solved by the utility model is to propose a conical LED lamp optical mask, which can reasonably distribute the luminous flux of the LED light source, thereby increasing the utilization rate of the luminous flux and improving the lighting quality of the LED lamp.

The technical scheme of the utility model is as follows:

A cone-shaped LED lamp optical mask, including one or more optical mask units; the optical mask unit includes a cone and several circular frustums, the cones are stacked on the top, and the circular frustums are stacked upright according to the radius of the bottom surface Below the cone; the base of the cone has the same radius as the upper base of its adjacent frustum, and the lower base of each frustum has the same radius as the upper base of the frustum below it.

As a preferred option,

For the cone and several frustums, the angles formed by the busbar and the bottom surface are different, and the angles formed by the busbar and the bottom surface are preferably increased from top to bottom.

The mask material can be a transparent optical material, such as optical glass, or PC, or PMMA.

There are one or more optical mask units. The optical mask unit can be installed on a polygonal bottom surface, so that multiple optical mask units can be spliced together along a plane or a curved surface to form an array of optical mask units. The polygonal base can be a triangle, or a quadrangle, or a pentagon, or a hexagon, or a decagon, or a dodecagon, or a combination thereof.

The optical mask of the conical LED lamp of the utility model can be arranged and spliced by one or more optical mask units along a plane or a curved surface to form an array of optical mask units; each optical mask unit is formed by superimposing a cone and two circular platforms from top to bottom .

The beneficial effects of the utility model are:

The conical LED lamp optical mask of the utility model realizes the effective control of the light spot distribution, light intensity distribution and uniformity of the LED lamp, can reasonably distribute the luminous flux of the LED light source, further improves the utilization rate of the luminous flux, and significantly improves the lighting quality of the LED lamp.

Description of drawings

Fig. 1a is a structural schematic diagram of the optical mask of the cone-shaped LED lamp of the present invention;

Figure 1b is a front view of Figure 1a;

Figure 1c is a side view of Figure 1a;

Fig. 2a is a structural schematic diagram of the optical mask unit of the cone-shaped LED lamp of the present invention;

Figure 2b is a front view of Figure 2a;

Figure 2c is a side view of Figure 2a.

Detailed ways

The optical mask of the cone-shaped LED lamp of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1a to 1c, the optical mask of the cone-shaped LED lamp of the present invention includes one or more optical mask units.

As shown in Figures 2a to 2c, the optical mask unit includes: a cone and several circular frustums. The radii of the upper bottom surfaces of adjacent circular frustums are the same, and the lower bottom surface of each circular frustum has the same radius as the upper bottom surface of the circular frustums below it; for the cone and several circular frustums, the angles formed by the generatrices and the bottom surfaces are different.

The material of the optical mask of the cone-shaped LED lamp is a transparent optical material, and the angles formed between the cone and the generatrices of the frustum of the cone and the bottom surface are different depending on the material of the mask. The specific method for determining the angle is common knowledge of those skilled in the lighting field.

The optical mask unit is installed on a polygonal bottom surface, which can be triangular, or quadrangular, or pentagonal, or hexagonal, or decagonal, or dodecagonal or a combination thereof, and multiple The optical mask units are spliced together along a plane or a curved surface to form an array of optical mask units.

The optical mask of the conical LED lamp in this embodiment is composed of seven optical mask units arranged along a plane or a curved surface to form an array of optical mask units; each optical mask unit is formed by superimposing a cone and two circular platforms from top to bottom. The angle formed by the bus bar and the bottom surface increases successively. The optical mask of the cone-shaped LED lamp is made of transparent optical materials such as optical glass, PC or PMMA.

The lamp with the optical mask of the conical LED lamp of the utility model can be combined with a total reflection lens (TIR) or a lens, and applied to LEDs such as Lambertian LEDs, which can realize luminous flux distribution control and reasonable light spot distribution of luminous flux. In the application of other methods for obtaining parallel light, it can also be combined with the optical mask of the cone-shaped LED lamp in the utility model to obtain ideal effects.

Claims (9)

1. A conical LED lamp optical mask, comprising one or more optical mask units, characterized in that: said optical mask unit includes a cone and several circular frustums, the cones are stacked on the top, and the radius of the circular frustum is smaller than that of the bottom surface And the big upright is stacked under the cone; the bottom surface of the cone has the same radius as the upper bottom surface of the adjacent circular platform, and the lower bottom surface of each circular platform has the same radius as the upper bottom surface of the circular platform below it. the 2 . The optical mask of the conical LED lamp according to claim 1 , wherein the angles formed by the busbar and the bottom surface are different for the cone and several circular frustums. 3 . the 3 . The optical mask of the conical LED lamp according to claim 2 , wherein, for the conical cone and several circular frustums, the angle formed by the busbar and the bottom surface increases sequentially from top to bottom. 4 . the 4. The optical mask of the conical LED lamp according to claim 1 or 2, wherein the material of the mask is a transparent optical material. the 5. The optical mask of the conical LED lamp according to claim 4, wherein the transparent optical material is optical glass, or PC, or PMMA. the 6. The optical mask of the conical LED lamp according to claim 1 or 2, characterized in that: there are one or more optical mask units. the 7. The optical mask of the cone-shaped LED lamp according to claim 6, wherein the optical mask unit is installed on a polygonal bottom surface, so that a plurality of optical mask units can be spliced together along a plane or a curved surface to form an optical mask cell array. the 8. The optical mask of the cone-shaped LED lamp according to claim 7, wherein the bottom surface of the polygon is a triangle, or a quadrangle, or a pentagon, or a hexagon, or a decagon, or a dodecagon , or a combination thereof. the 9. The optical mask of the conical LED lamp according to claim 1 or 2, characterized in that: it is arranged and spliced into an array of optical mask units by one or more optical mask units along a plane or a curved surface; each optical mask unit is composed of one A cone and two circular platforms are superimposed from top to bottom. the

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