Small-distortion stereo endoscope optical system
A technology of three-dimensional endoscope and optical system, which is applied in endoscope, medical science, surgery, etc., can solve the problems of different surgical accuracy and misoperation, and achieve the guarantee of edge field of view illumination and clear electronic image , the effect of simple structure
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[0023] Example: see Figure 1-9 , 10a-c and Figure 11 , a kind of small distortion three-dimensional endoscope optical system of the present invention, comprises endoscope objective lens 10, steering system 11 and electronic imaging lens system 12, and described endoscope objective lens 10 is provided with direct view endoscope objective lens assembly 1 and oblique view Endoscope objective lens assembly 2, said direct-view endoscope objective lens assembly 1 is provided with a sapphire protection sheet 3 on one side along the direction of light propagation, and a first negative lens 4 is provided on one side of said sapphire protection sheet 3, said first One side of the negative lens 4 is provided with a second negative lens 5, and one side of the second negative lens 5 is provided with a parallel plate 6, and one side of the parallel plate 6 is provided with a plano-convex lens 8; 2 is provided with a deflection prism 7 arranged between parallel plates 6 and plano-convex l...
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