Collimator and method for eliminating air disturbance introduced error
A collimator and air disturbance technology, applied in the field of optical detection, can solve the problems of increasing wave aberration of the collimator system and affecting the detection accuracy
Active Publication Date: 2018-12-21
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology
With the increase of the aperture and focal length of the optical remote sensor, a collimator with a larger aperture and a longer focal length is required for its detection and image quality evaluation. The more sensitive the disturbance, the higher the wave aberration of the collimator system will affect the detection accuracy
Method used
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Embodiment 1
[0023] Such as figure 1 and figure 2 As shown, a collimator for eliminating errors introduced by air turbulence includes a collimator protective cover 1, a secondary mirror assembly 2, a primary mirror assembly 3, a focal plane assembly 4, an airflow input fan assembly 5, a fan moving guide rail 6, and a fan Group moving guide rail 7, airflow output fan assembly 8, fan moving guide rail 9, fan group moving guide rail 10 and collimator mounting base plate 11,
[0024] Wherein the collimator protective cover 1 is fixed above the collimator mounting substrate 11, the secondary mirror assembly 2 is mounted on the collimator mounting substrate 11, and at the inner front end of the collimator protective cover 1, the primary mirror assembly 3 is installed on the parallel light pipe mounting substrate 11. On the light pipe installation substrate 11 and at the inner rear end of the collimator protective cover 1, the fan group moving guide rail 7 is fixed in front of the collimator in...
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The invention belongs to the technical field of optical detection and particularly relates to a collimator and a method for eliminating an air disturbance introduced error. The device comprises a collimator protection cover, a secondary mirror component, a main mirror component, a focal plane component, an airflow input fan component, a fan moving guide rail, a fan set moving guide rail, an airflow output fan component, another fan moving guide rail, another fan set moving guide rail and a collimator installation baseboard. According to the device, a stable airflow environment is provided foran optical path in the collimator through the airflow input fan component and the airflow output fan component, so that the image quality of the collimator is no longer influenced by the activity of people as well as an air conditioner and other equipment in a laboratory, the stability of the image quality of the collimator in the using process can be guaranteed, and detection precision is improved.
Description
technical field [0001] The invention belongs to the technical field of optical detection, and in particular relates to a collimator and a method for eliminating errors introduced by air disturbance. Background technique [0002] With the continuous development of space optical remote sensors, the requirements for their technical performance indicators are getting higher and higher. In order to achieve higher ground resolution, the aperture and focal length of space optical remote sensors are gradually increasing. The work of ground detection and image quality evaluation of remote sensors has brought a series of new problems. With the increase of the aperture and focal length of the optical remote sensor, a collimator with a larger aperture and a longer focal length is required for its detection and image quality evaluation. The more sensitive the disturbance, the higher the wave aberration of the collimator system will affect the detection accuracy. Contents of the invent...
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IPC IPC(8): G01M11/00
CPCG01M11/00
Inventor 李响张家齐李小明白杨杨柳鸣孟立新张立中
Owner CHANGCHUN UNIV OF SCI & TECH