led collimated illumination optics with refracting lens and reflector

A technology of refracting lenses and optical devices, which is applied to lighting devices, lighting device parts, refractors, etc., can solve the problem of inability to achieve bidirectional collimated beams, and achieve the effect of good light control ability and high light efficiency

Active Publication Date: 2020-05-26
NAVAL UNIV OF ENG PLA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can achieve unidirectional collimation at most, and cannot achieve approximately rectangular bidirectional collimated beams.

Method used

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  • led collimated illumination optics with refracting lens and reflector
  • led collimated illumination optics with refracting lens and reflector
  • led collimated illumination optics with refracting lens and reflector

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Embodiment Construction

[0024] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples. At the same time, the advantages of the present invention are clearer and easier to understand through the description.

[0025] Referring to the accompanying drawings, it can be seen that the LED collimated illumination optical device with a refracting lens and a reflector is characterized in that it includes a refracting lens 1 and a reflector 2, and the refracting lens 1 is composed of a first curved surface 11, a second curved surface 12, The third curved surface 13, the fourth curved surface 14, the fifth curved surface 15, the sixth curved surface 16 and the seventh curved surface 17 constitute the entity, and the reflector 2 is composed of the eighth curved surface 21, the ninth curved surface 22, the tenth curved surface 23, A solid formed by the eleve...

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Abstract

The invention discloses an LED collimation illumination optical device with a refraction lens and a reflector, and relates to an LED collimation illumination optical device. The optical device comprises a refraction lens, a reflector, a first curved face, a second curved face, a third curved face, a fourth curved face, a fifth curved face, a sixth curved face, a seventh curved face, an eighth curved face, a ninth curved face, a tenth curved face, an eleventh curved face, and a twelfth curved face. The first curved face is a free curved face in rotational symmetry, the second curved face is a semi-circular plane, the third curved face is a free curved face in rotational symmetry, the fourth curved face and the fifth curved face are both a cylindrical face, the sixth curved face is a free curved face in non-rotational symmetry, the eighth curved face and the ninth curved face are both a reflecting free curved face. The optical device has good light control ability, and can achieve approximate rectangular light beams of bi-directional collimation and maintain high illumination efficiency.

Description

technical field [0001] The invention relates to an LED collimated illumination optical device, in particular to an LED collimated illumination optical device with a refracting lens and a reflector. Background technique [0002] As a new type of light source, LED has become a perfect substitute for traditional light sources such as incandescent lamps and fluorescent lamps due to its high luminous efficiency, long life, and non-toxicity. However, since the light intensity distribution of LED is a circular Lambertian distribution, if it is directly applied to lighting, it will form an extremely uneven illuminance distribution on the target surface, which cannot meet the optical performance requirements of various lighting occasions for lamps. In order to make LEDs better used in the lighting field, it is necessary to design a secondary optical system to redistribute the light intensity distribution of LEDs so that it can form a uniform or other specific illuminance distribution...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): F21K9/68F21K9/69F21V5/04F21V7/09F21Y115/10
CPCF21V5/04F21V7/09
Inventor张晓晖刘典宏陈琛
OwnerNAVAL UNIV OF ENG PLA