TWM397532U - Symmetric street lamp optical lens - Google Patents

Description

V. New description: 【New technology field】 This creation department is related to the field of light-emitting diode lenses, especially for the use of the principle of concentrating to enhance the light intensity, and can be used to display the rectangular illumination. Symmetrical streetlight optical lens for the area. [Prior Art] Light Emuing Di〇de (led) has the advantages of low voltage, low power consumption, and long life compared to conventional light sources. Therefore, LEDs have been widely used in various related fields where light sources are required in today's life. For example, a light module for a display, an indicator light source, a general lighting device, and the like. Among them, LED has a particularly significant energy-saving and power-saving advantage, so its practicality is particularly important in the most commonly used lighting purposes. For example, the application of LED light sources to the illumination of nighttime streetlights is an example of this. However, compared with the conventional light source, the light diverging angle of the light-emitting diode is small, so that when the light is applied to the illumination of the street lamp, the central brightness is too concentrated, which leads to the difference in the brightness between the street lamp and the remote place. Provide road lighting evenly. In this regard, the use of secondary optics to change the optical performance of the LED projection, and for a variety of different conditions, can provide the best lighting state. For example, the street lights on both sides, the lighting requirements at least It can display the illumination effect of a kind of rectangular area, which can be provided in the parallel road direction and the M397532 vertical road direction can be covered. Therefore, how to effectively improve the projection intensity, projection range, and uniformity of illumination of the LED light source is an issue that is highly sought after by practitioners in the field. There is a forging on this 'this creator feels its unsatisfied and exhausted his mind and painstaking research' and based on his accumulated experience in the industry for many years, the current height of the street lamps and the length and width of the road surface have been proposed and approved. In the Taiwan Patent No. M380486 patent, the symmetrical lens structure is used to make the LED light source pass through the lens to produce a symmetric and uniform illumination area effect. In this creator, we have developed a symmetrical street light optical lens that can enhance the light intensity by using the principle of concentrating, and can evenly illuminate the effect and present a kind of rectangular illumination area, effectively illuminating the LED light source effectively. On the road surface, while strengthening night driving and using passersby safety, it can meet the environmental protection requirements of energy saving and carbon saving. [New content] The problem of the above-mentioned problem' The purpose of this creation is to provide a symmetrical street light optical lens that uses the principle of secondary optics to change the optical characteristics of the LED. In this way, it is used to enhance the intensity of light irradiation, uniform illumination effect and present a special effect of a kind of rectangular illumination area, so as to enhance the environmental protection requirements of energy saving and carbon saving when the night driving and the safety of passers-by are enhanced. ^ In order to achieve the above objectives, the author proposes a symmetrical road light lens with a lens body, including: - a projection surface, which is a lux by 4 M397532. The light distribution curve is usually indicated by a polar coordinate indicating 'the luminous intensity distribution of the lamp, and then measuring the luminous intensity distribution of the lamp at various angles. As shown in the figure, the light distribution

The radial coordinate of the periphery of the graph is the angle in degrees (.), and the axial coordinate is the luminous intensity in units of (candle) cd. When the unit coordinate length d is 1 mm, the symmetrical street lamp optical lens has a long axis of about 20 mm and a short axis of about 14 mm, and the illumination range in the long axis direction is about 6400 mm, and the short axis direction is about 250〇mm; at the same time, because the light source is directional after the lens of the present invention, and then different luminosity is presented at different angles. In the figure, La is the light distribution curve in the long-axis direction of the illumination region of the seventh figure, and Lb is the light distribution curve in the short-axis direction.

Please refer to Figure 9 again for the three-dimensional appearance of the design. As can be seen, the symmetrical street light optical lens can further include at least one engaging portion 2 disposed on the bottom surface 12 for engaging and fixing with respect to an lED substrate. In this way, in the rear end mounting, the symmetrical street light optical lens can be quickly installed or replaced without moving through the adhesive and the unloading action. The engaging portion 2 can be provided as a type of fastener, and the symmetrical light lens can be fixed to the upper surface of the L E D substrate by screwing. The effect of the creation is to make the light source of the light-emitting diode through the symmetrical street light optical lens to generate a refraction effect by using the 'wide-width angle d·' of the symmetrical street light optical lens, so that the illumination area of the light projection roughly corresponds to The long and short axis direction datum faces are bilaterally symmetrical. 9 M397532 is not intended to be a special illumination effect. According to this, it is indeed possible to completely illuminate the LED light source on the road surface, and when using the LED lamp to achieve energy saving, carbon saving and environmental protection, it can enhance the safety of night driving and passers-by. . . . "~ thousand and π I hold the example, and limit the scope of this creation, so the familiar changer familiar with this technology' is equal to the spirit of the creation and the equality of the creation. 4, within the scope of the benefit. 匕 4 decoration, should be covered in this creation of 10 M397532 [Simple diagram of the diagram] Figure 1 is the three-dimensional appearance of the creation 〇 Figure 2 is the creation of the side of the X--Z plane The third figure is a view above the X--Y plane. The fourth picture is a cross-sectional view of the creation in the Y-Z plane. The fifth picture is a schematic diagram of the light path created in the X·-Z plane. 6 The figure is not intended to create a light path on the Y-Z plane. Figure 7 is an isometric distribution map of the LEDs used in the creation. Figure 8 is a light distribution curve for the LEDs used in the creation. This creation has a three-dimensional appearance of the engagement part.

1 10 102 104 106 108 12 122 [Description of main component symbols] Lens body Projection surface Surface point Datum plane Long axis Short axis Bottom accommodating chamber Engagement part 11 2

Claims (1)

M397532 VI. Patent application scope: A symmetrical street lamp optical lens having a lens body comprising: a projection curved surface, which is composed of a plurality of curved surface points, wherein the projected curved surface edge forms a reference surface, and the reference surface has a long axis and a short axis, wherein the long axis is a z-axis direction, the short axis is a Y-axis direction, d is a unit coordinate length, and the long axis intersects the short axis as a three-dimensional coordinate origin, wherein The surface is on the xz coordinate plane with points (χ, ζ) as (〇, 6 9) points 0-32, 6.96) . (2.92, 7.1 2) . (4.03, 7.16). (5-32, 7.04) (7.1 8,6.35) . (8.3 1,5.44). (9-32,3.87) > (9.73,2.3 1) . (9.79,0.77), (9,80,0); on the χγ-coordinate plane , with each point (x, y) is (〇,6·61), (1.72,6.59) . (3.82,6.40). (6.07,6.05) ' (8.17,4.96) > (8.91,4.32), ( 9.62, 2.85), (9.80, 1.05), (9.78, 0); on the γ_ζ coordinate plane, with points (y, z) as (〇, 7 17), (1 34, 7 〇 4), (2.70 , 6.61), (3.88, 5.97), (4.94, 5.11), (6.01, 3'69), (6.56, 2.05), (6, 42, 〇); The point-to-χ, γ, and z-axis distances respectively have a relative error p, and -d/20 <=p S d/20 , and a bottom surface whose edges are interconnected with the reference plane edge to form the lens body 'and The center of the bottom surface is concavely formed into a receiving chamber. The lens system is based on the γ_ζ surface and is mirror-symmetrical to X 12