RU49328U1 - LIGHTING MODULE BASED ON LIGHT-EMISSING DIODES AND OPTICAL UNIT - Google Patents

Abstract

The utility model relates to lighting devices, namely to LED light sources. The task of the technical solution is to develop a luminaire based on LED arrays and an optical unit consisting of a Fresnel lens and a lens raster, which can be used in the above lighting and signal devices. As a result of the development of the design of the lamp based on the Fresnel lens, the following technical results were achieved:

1. A modular design of the luminaire has been developed, which makes it easy to design light panels of various configurations and areas;

2. A uniform illumination was obtained across the screen field, the variation in the brightness of the glow does not exceed 1-2%.

3. Achieved a high brightness of the screen - 200 nt;

4. Ensured low energy consumption compared to lamp counterparts - 2 W / DM ²

A lighting module based on light-emitting diodes and an optical unit is characterized in that it comprises a base 1, a printed circuit board 4 with LEDs 16, an optical unit consisting of a flat Fresnel lens 6 and a lens raster 7 with a matte surface on one side and cylinder lenses on the other , while these elements are located one on top of the other and are fixed by latches 2, 3.

Description

The utility model relates to lighting devices, namely to LED light sources.

Currently, various LED light sources are widely used in the market of lighting products, which actively compete with products based on incandescent lamps, luminescent and halogen lamps. Products based on LEDs and LED arrays are used in various lighting devices (lights, spotlights), signaling devices (traffic lights, beacons, direction signs), as well as in various information displays and advertising products (1, 2, 3).

The closest analogue to the functional purpose with respect to the proposed solution is source 4, which shows a lighting device with a light source and an optical unit.

In some cases, lighting devices are required to obtain uniform illumination of a screen of a certain area, for example, in the manufacture of billboards or luminous decorative panels. Known solutions based on LED matrices do not allow to obtain uniform illumination of the screen over the area.

The task of the technical solution is to develop a luminaire based on LED arrays and an optical unit consisting of a Fresnel lens and a lens raster, which can be used in the above lighting and signal devices.

As a result of the development of the design of the lamp based on the Fresnel lens, the following technical results were achieved:

1. A modular design of the lamp has been developed, which makes it easy to design light panels of various configurations and areas;

2. A uniform illumination was obtained across the screen field; the variation in the brightness of the glow did not exceed 1-2%.

3. Achieved a high brightness of the screen - 200 nt;

4. Ensured low energy consumption compared to lamp counterparts - 2 W / DM ²

To achieve technical results, a lighting module based on light-emitting diodes and an optical unit is proposed, characterized in that it contains a base, a printed circuit board with LEDs, an optical unit consisting of a flat Fresnel lens and a lens raster with a matte surface on one side and cylinder lenses with another, while these elements are located one on top of the other and are secured by clamps.

The drawings show this technical solution, where:

figure 1 - the base of the lamp, figure 2, 3 - latches external and internal, respectively, figure 4 - printed circuit board with LEDs, figure 5 - Fresnel lens, figure 6 - lens raster, consisting of lens cylinders with one side and matte surface on the other, Fig.7 - lamp assembly.

In the figures, the numbers indicate: 1 - base, 2, 3 - retainers, 4 - printed circuit board, 5 - fixing screw, 6 - Fresnel lens, 7 - lens raster, 8, 9, 10, 11 - latch, support, rack, actually the clamp, respectively, the clamps 2, 3; 12, 13 -

holes for clips 2, 3 on the base 1; 14 - holes for mounting printed circuit boards 4 on the basis of 1; 15 - holes on the circuit board for screws 5; 16 - LEDs located on the printed circuit board 4.

The Fresnel lens 6 (figure 5) has a Fresnel profile on one side and a smooth transparent surface on the other. Racks 10 of latches 2, 3 determine the height of the lamp, and the LEDs 16 are in the focus of the lens raster.

A lamp based on a Fresnel lens is assembled as follows.

On the base 1, latches 2, 3 are fixed in the holes 12, 13, between which a printed circuit board 4 with LEDs 16 is mounted (fixed). A Fresnel lens 5 is placed on top of the circuit board, with the Fresnel profile facing the LEDs. A lens raster 6 is also mounted on the opposite smooth surface of the Fresnel lens, also fixed by clamps. The printed circuit board 4 is additionally fixed to the base with screws 5.

Fresnel lens and raster can be made of any optically transparent, including organosilicon, material.

The use of an optical device based on Fresnel lenses and a lens raster in combination with arrays based on high-power LEDs allows us to obtain unique lighting characteristics of billboards, various luminous displays, decorative wall panels and other lighting elements, as well as other lighting devices.

The developed lamp based on an optical unit consisting of a Fresnel lens and a lens raster was tested in the above devices.

Tests have shown that such luminaires have high operational characteristics, resistance to atmospheric influences and allow achieving good lighting and energy parameters of lighting and signal systems.

Sources of information

1. Khvalovsky V.V., Rumyantsev D.M., Voznesensky N.B. Materials of the All-Union Scientific and Technical Conference "Modern Applied Optics" - L., 1975.

2. Neumann Y., Hofinann W. XIX Yutem. Wiss / Koll T.N. Ymenan, 1974, H.4.

3. Slyusarev T.T. "Calculation of optical systems" - L., Engineering, 1975.

5. V. G. Karpov et al. Calculation of raster optical systems and Fresnel optical elements (Tutorial for the course "Technical Optics"). Department of Theory of Optical Instruments. Min. and wednesday specialist. USSR, Leningrad Order of the Red Banner of Labor Institute of Precision Mechanics and Optics. L., 1986, pp. 3-4, Fig. 1.

Claims (1)

A lighting module based on light-emitting diodes and an optical unit, characterized in that it comprises a base, a printed circuit board with LEDs, an optical unit consisting of a flat Fresnel lens and a lens raster with a matte surface on one side and cylinder lenses on the other, the elements are located one on top of the other and are fixed with clamps.