A mid-wave infrared optical system

An infrared optical system and optical system technology, applied in the field of medium-wave infrared optical system, can solve the temperature measurement delay, can not directly reflect the temperature field distribution, can not meet the strong radiation of nuclear reactors, and the temperature field monitoring of the large field of view in the space light environment and measurement issues
CN111505801BActive Publication Date: 2021-09-14中科精仪吉林省科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
中科精仪吉林省科技有限公司
Publication Date
2021-09-14

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Abstract

The invention provides a mid-wave infrared optical system, which solves the problem of temperature field measurement in nuclear reactors. The mid-wave infrared optical system includes an anti-pollution protection window, an imaging group, a relay mirror group, a correction mirror group and a detector assembly. The light emitted by the optical system is imaged by the imaging group, the image surface of the imaging group is coupled to the object surface of the correction group through the relay mirror, the imaging quality is adjusted by the correction mirror group, and the imaging information is collected by the detector component: wavelength range The diameter is 3.7um~4.8um, the field of view is 50 degrees, the diameter of the entrance pupil is 6.78mm, the F-number of the system is 2, and the total length of the system is 1770mm. In addition to the detector assembly, a total of 12 lenses are used, of which 10 aspherical surfaces are used on 4 surfaces. The mid-infrared optical system of the present invention has the advantages of easy processing, easy assembly and adjustment, small lens diameter, good imaging quality and the like.
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Description

technical field

[0001] The invention belongs to the application field of infrared optics, and in particular relates to a mid-wave infrared optical system. Background technique

[0002] In nature, when the temperature of an object is higher than absolute zero, due to the existence of its internal thermal motion, it will continuously radiate electromagnetic waves to the surroundings, including infrared rays with a band of 0.75-100um. Infrared temperature field measurement is made using this principle. Temperature is a physical quantity that measures the degree of coldness and heat of an object. It is a very common and important thermal parameter in industrial production. Many production processes require monitoring and monitoring of temperature. Control, especially in nuclear reactors, needs to accurately reflect the temperature field distribution and gauge size in different regions of the nuclear reactor. Traditional contact thermometers such as thermocouples, thermal resist...

Claims

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