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双模成像仪是一种能够探测可见光和红外辐射的仪器。然而,现有的双模成像仪不但成本高,而且复杂、笨重。另外,双模成像仪中常用的折射透镜很难聚焦一幅具有不同电磁波长辐射的图像,尽管双模成像仪具有军用和商业价值,但是它们还没有得到广泛的承认。本发明提供一种能对视场中两个或多个不同波段的电磁辐射进行成像的多模光学成像仪,该成像仪采用一个共用孔径,其前部光学系统用于收集电磁辐射并在孔径上形成一幅图像。然后,该图像被分成可见光和长波红外两个不同波段．其中,可见光波段由CCD列阵探测,长波红外波段由非致玲微测辐射热计列阵探测。其附加光学系统则用于改变放大倍率,提供冷屏蔽、滤光和/或进一步的光谱分离等
Dual-mode imager is a device that can detect visible and infrared radiation. However, existing dual-mode imagers are not only costly, complex and cumbersome. In addition, the refracting lenses commonly used in dual-mode imagers find it difficult to focus on an image of a different wavelength of electromagnetic radiation. Although dual-mode imagers are of military and commercial interest, they have not been widely recognized. The present invention provides a multimode optical imager capable of imaging electromagnetic radiation in two or more different wavebands in a field of view using a common aperture with a frontal optical system for collecting electromagnetic radiation and having apertures in the aperture On the formation of an image. The image is then split into two different bands, visible and long-wave infrared. Among them, the visible light band is detected by a CCD array, and the long-wave infrared band is detected by a non-induced micro-bolometer array. Its additional optical system is used to change the magnification, to provide cold shielding, filtering and / or further spectral separation, etc.