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Four-jamming-light-path infrared jamming simulation system using microlens array as beam expansion element

A micro-lens array, interference simulation technology, applied in the direction of lenses, optical components, optics, etc., can solve the problems of complex actual situation and many interference bombs.

Active Publication Date: 2014-04-30
HARBIN INST OF TECH
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Problems solved by technology

However, since the number of jammers is more than that of the target, and the actual situation is more complicated, a single jamming optical path cannot accurately simulate

Method used

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  • Four-jamming-light-path infrared jamming simulation system using microlens array as beam expansion element
  • Four-jamming-light-path infrared jamming simulation system using microlens array as beam expansion element
  • Four-jamming-light-path infrared jamming simulation system using microlens array as beam expansion element

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Embodiment Construction

[0020] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0021] Such as figure 1 , 2 , 5, the present invention has four interference light path infrared interference simulation system, including interference light path, composite objective lens 5, beam expander element 7 and collimating objective lens 8. The working band of the infrared interference simulation system is 1~5μm.

[0022] The interfering light paths include four interfering light paths: first interfering light 1 , second interfering light 2 , third interfering light 3 , and fourth interfering light 4 .

[0023] The composite objective lens 5...

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Abstract

The invention discloses a four-jamming-light-path infrared jamming simulation system using a microlens array as a beam expansion element, and belongs to the technical field of infrared semi-physical simulation. The four-jamming-light-path infrared jamming simulation system comprises jamming light paths, a compound objective lens (5), the microlens array (14) and a collimator objective lens (8) in the direction of the light paths, wherein parallel light beams emitted by the jamming light paths light on the microlens array (14) after penetrating through the compound objective lens (5), convergency of the light beams is carried out through the microlens array (14), collimation is carried out on the light beams through the collimator objective lens (8), and the light beams are received by a seeker. According to the four-jamming-light-path infrared jamming simulation system using the microlens array as the beam expansion element, when the microlens array serves as the beam expansion element, the jamming light beams lighting on the front surface of the microlens array are further converged, the direction of propagation of the light beams is changed, and the angle of divergence of the light beams is enlarged; meanwhile, the collimator objective lens can be filled with jamming light, collection efficiency of jamming light energy is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of infrared semi-physical simulation, and relates to an infrared interference simulation system with four interference optical paths using a microlens array as a beam expanding element. Background technique [0002] The infrared jamming simulator can simulate the appearance characteristics, spectral radiation performance, and motion state of the jamming target and its background, and is an important part of the hardware-in-the-loop simulation system. Due to the large number of jammers and the complexity of the actual situation, a single jamming optical path cannot be accurately simulated. Multiple interfering optical paths can obtain good simulation results, but due to the limited aperture of the seeker, only a small part of the light interfering with the optical path can enter the seeker, and the light energy collection efficiency is very low. [0003] Although the application of beam expanders such as ani...

Claims

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Application Information

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IPC IPC(8): F21V5/04G02B3/00
Inventor 任智斌马驰金传广刘月
Owner HARBIN INST OF TECH
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