Small size uncooled dual-field-of-view infrared optical system
An infrared optical system, non-cooling technology, used in optics, optical components, optical radiation measurement, etc., can solve problems such as inability to use and inconvenient to use, and achieve the effect of compensating the drift of the image surface with temperature
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[0030] The present invention will be further described below in conjunction with the drawings and embodiments.
[0031] Such as figure 1 with figure 2 As shown, the structure diagrams of the small-size uncooled dual-field infrared optical system of the present invention in a narrow field of view and a wide field of view are respectively given, which include a first positive meniscus lens 1, a double concave lens 2, a second positive Meniscus lens 3, negative meniscus lens 4, third positive meniscus lens 5, detector 7, the optical axes of the above five lenses coincide; the first positive meniscus lens 1 shown is set between the object and the detector 7 Meanwhile, the biconcave lens 2, the second positive meniscus lens 3, the negative meniscus lens 4, and the third positive meniscus lens 5 are sequentially arranged between the first positive meniscus lens 1 and the detector 7 along the optical axis 8. The shown biconcave lens 2 can be moved between the first positive meniscus ...
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