Four-spectrum-in-one spectral beam split structure
A spectroscopic and spectral technology, applied in the field of photoelectric detection, can solve the problem of having all 4 optical spectrum bands, etc., to achieve the effect of improving the optical imaging quality of the system, reducing the external size, and shorting the optical path.
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] The present invention is a "four-light-in-one" spectral light-splitting structure, such as figure 1 shown. Concretely consists of three parts. The first part is composed of primary mirror 3 and secondary mirror 1 to form the first imaging; the second part is composed of the first dichroic mirror 2, the third dichroic mirror 4, the second dichroic mirror 11 and the third reflecting mirror 5, the second dichroic mirror Four reflection mirrors 7, the first reflection mirror 10, the second reflection mirror 15 are made up, mainly carry out spectral light splitting and light path refraction; The third part is formed by each spectral section post-imaging optical structure (comprising long-wave objective lens group 6, medium-wave objective lens group 8 , near-infrared objective lens group 13, collimator lens group 14, and visible light obje...
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