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Design method of reflective optical integrator based on planar mirror array

A technology for optical integrators and design methods, applied in the field of optical integrators, can solve the problems of difficult processing, seldom used, complex shape and structure of reflective integrators, etc.

Active Publication Date: 2013-08-28
TIANJIN UNIV
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Problems solved by technology

[0003] Due to the complex shape and structure of the reflective integrator, the processing is not easy to realize, so it is rarely used at present

Method used

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  • Design method of reflective optical integrator based on planar mirror array
  • Design method of reflective optical integrator based on planar mirror array
  • Design method of reflective optical integrator based on planar mirror array

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Embodiment Construction

[0027] The integrator designed in the present invention is made up of plane mirror array, as figure 1 shown. Taking the center of the plane at the center of the integrator as the coordinate origin, and taking the opposite direction of the incident parallel light as the Z axis, establish as figure 1 Cartesian coordinate system shown. The position parameters of the integrator include the coordinates of the center point of the unit, the side lengths of each planar unit along the X-axis and the Y-axis, the side length of the receiving surface and the focal length of the integrator. The orientation parameter of each plane unit includes the rotation angle of the plane unit around the X axis and the Y axis and the coordinates of the rotation center around the X axis and the Y axis.

[0028] figure 1 It is the overall structure diagram of the integrator. The parallel light along the Z axis reaches the receiving surface after being reflected by the integrator. In order to achieve u...

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Abstract

The invention belongs to the technical field of optical device designs, in particular relates to a design method of a reflective optical integrator based on a planar mirror array. The method comprises the following steps of: confirming the center of integrator plane units; confirming the directions of the integrator plane units; confirming the position parameter and the direction parameter of an integrator array in a Y direction; confirming the position parameter and the direction parameter of the integrator array in an X direction; establishing an integrator model; and designing a processingpath according to the designed integrator model and carrying out ultrafine turning and processing. Compared with a traditional transmission-type integrator, the reflective integrator designed by using the method provided by the invention has simple structure, good stability and superior uniformly distributed illumination intensity under the condition of the same incident light energy.

Description

technical field [0001] The invention belongs to the technical field of optical device design, and in particular relates to an optical integrator. Background technique [0002] Integral lighting is to integrate chaotic light into uniform light through an optical system, or to achieve brightness improvement and uniformity, and can be widely used in green energy, space technology and other fields. The optical integrator is the most important optical device in integrating illumination. According to the law of light propagation, optical integrators can be divided into refraction type (transmission type) and reflection type. Refractive optical integrators, such as microlens arrays, are generally used in coaxial systems. The disadvantage of coaxial systems is that the optical path is long, resulting in a large outline of the optical system. The light uniformity of the light beam is achieved by using a microlens array. However, due to the use of the lens, some shortcomings of the ...

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Application Information

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IPC IPC(8): G02B27/00G02B27/09
Inventor 房丰洲程颖张效栋
Owner TIANJIN UNIV
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