A wide-spectrum confocal detection optical system with switchable wavelength
An optical system and wide-spectrum technology, applied in optics, optical components, optical device exploration, etc., to achieve simple use, clear imaging, and good imaging quality
Inactive Publication Date: 2015-11-11
金万平
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The invention relates to a wide-band confocal detection optical system with a switchable band. The confocal detection optical system is composed of five separate spherical lenses and parallel plate glass; the sequence of optical materials of the five separate spherical lenses is ZK10, ZF6, ZK6 (cemented doublet), LAF5, ZK6 and ZF6; the appearances of the five separate spherical lenses are sequentially a convex-concave positive lens, a negative and positive cemented doublet, the convex-concave positive lens, the convex-concave positive lens and a concave-convex negative lens; the parallel flat glass material is common glass K9; the parallel flat glass is arranged between a fifth shot and a CCD (charge coupled device) target surface; the used wave band is selected for switching the parallel flat glass, and a diaphragm is fixed between the third spherical lens and the fourth spherical lens. Compared with the traditional optical system, the technical problem that no confocal detection optical system with the switchable wide band exists at present is solved, and the wide-band confocal detection optical system has the characteristics of being low in cost, easy to ensure the machining precision and the like.
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