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Improved optical systems and LED luminaires

A technology of LED lamps and optical systems, applied in the field of lenses, can solve the problems of no reflective surface design and no luminous effect of the lens, and achieve the effects of good reflection effect, good aggregation and reflection effect, and simple structure

Inactive Publication Date: 2014-11-26
奥罗拉有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this condenser lens has two refraction grooves, the lens does not have a reflective surface design, so it does not have a good luminous effect

Method used

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  • Improved optical systems and LED luminaires
  • Improved optical systems and LED luminaires
  • Improved optical systems and LED luminaires

Examples

Experimental program
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Effect test

Embodiment 1

[0107] Such as Figure 5 In the shown embodiment 1, a 1mmx1mm LED chip is used as the light source, and its luminous flux is 1351m. The light source forms a divergence angle of 65° after passing through the lens. The lens material is polymethyl methacrylate (PMMA), and it is a multi-segment reflective surface, and the detailed dimensions of the multi-segment reflective surface design are as follows: Figure 5 shown. The multi-segment reflective surface 3 designed according to the method described above includes two arc line segments, namely, the curved reflective surface EF and the curved reflective surface FG. Each arc segment can also be designed as a multi-segment arc. Simulated light maps and simulated data can be obtained using the software program TracePro, such as Image 6 with Figure 7 shown.

Embodiment 2

[0109] Such as Figure 8 with Figure 9 In the shown embodiment 2, the total reflection surface lens is integrally molded with a translucent material. The inside of the cone opening is also solid and translucent. The cylindrical first refraction groove 1 is located inside the opening of the cone, and its central axis overlaps with the central axis of the cone. That is, the first refraction groove 1 is just arranged in the middle of the opening of the cone. The cylindrical second refraction groove 2 is arranged on the back of the reflective surface lens. It overlaps the centerline of the first refractive groove, however, they are not connected to each other. The multi-segmented surface 3 located on the outer surface of the reflective surface lens is formed by reflective surfaces 31 , 32 and 33 . Along the direction from the first refraction groove 1 to the second refraction groove 2, the radii of these sequentially connected reflective surfaces gradually increase. Meanwhi...

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Abstract

The invention discloses a lens with reflecting surfaces. A first refraction groove is arranged at one end of the reflector lens, a second refraction groove is disposed at the other end of the reflector lens, the first refraction groove and the second refraction groove are arranged on the same central axis, a lens shell is light-transmitting, the outer surface of the lens shell is horn-shaped, a horn mouth of the outer surface of the lens shell faces to the direction of the second refraction groove from the direction of the first refraction groove, and multiple sections of reflecting surfaces are disposed on the outer surface of the lens shell. When an LED is placed in the first refraction groove, light emitted from the LED is transmitted outwards from the horn mouth with the second refraction groove after being refracted by the first refraction groove, and simultaneously, light which is transmitted via the light-transmitting lens shell is reflected by the multiple sections of reflecting surfaces of the horn-shaped outer surface and is also transmitted outwards from the horn mouth. The lens with the reflection surfaces has the advantages that a condensation function, a refraction function and a reflection function are integrated, a uniform illuminating effect and various set illuminating effects can be achieved without a reflecting coating, processing technology of an LED illuminating system is simplified, and technological cost is reduced.

Description

technical field [0001] The invention relates to a new type of lens, in particular to a lens capable of greatly improving the light efficiency of LED lamps. Background technique [0002] As a new competitive solid-state light source in the 21st century, LED lights have the following advantages: high efficiency, pure light color, low energy consumption, long life, reliable and durable, no pollution, and flexible control. With the continuous improvement of LED technology, the luminous flux and light efficiency of LED lamps will continue to increase. At present, the luminous flux of a single white LED has reached more than 2000Im. The number of lighting systems using LEDs as luminaires is growing rapidly. Light emitted from the LED chip is projected in a Lambertian distribution. In most cases, such a light field distribution cannot meet the performance requirements when used in a luminaire if it is not processed by an appropriate optical system at the time of application. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B19/00F21V5/04F21V7/00F21V13/04F21Y115/10
Inventor 张勇
Owner 奥罗拉有限公司
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