40 Angle of view 40-degree far-infrared optical system with uniform resolution for each image area

The present invention relates to a far-infrared optical system with a view angle of 40 degrees having a uniform resolution for each image area. More specifically, the far-infrared optical system with a view angle of 40 degrees having a uniform resolution for each image area comprises a lens having:...

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Bibliographische Detailangaben
Hauptverfasser: KIM SEON HOON, LEE WEE SAM, HAN SEUNG HEON, KIM YOUNG BOK
Format: Patent
Sprache:eng ; kor
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Zusammenfassung:The present invention relates to a far-infrared optical system with a view angle of 40 degrees having a uniform resolution for each image area. More specifically, the far-infrared optical system with a view angle of 40 degrees having a uniform resolution for each image area comprises a lens having: a non-spherical concave surface (S1) primarily refracting light entering from a subject; and a non-spherical convex surface (S2) secondarily refracting the light passing through the concave surface. The concave surface (S1) and the convex surface (S2) are specified by the relations of Equation 1, Table 1 (K is the conic curved surface coefficient, A, B, C, and D are non-spherical coefficients, y is the height of a beam incident upon the lens, and c is the lens curvature), and Table 2, and have a view angle of 40 degrees. 본 발명은 이미지 영상 영역별 균일한 해상도를 갖는 화각 40도급 원적외선 광학계에 관한 것으로, 보다 구체적으로는 피사체로부터 입사되는 광을 1차적으로 굴절시키는 비구면 오목면(S1); 상기 오목면을 통과한 광을 2차적으로 굴절시키는 비구면 볼록면(S2)을 갖는 렌즈를포함하되, 상기 오목면(S1)과 볼록면(S2)은, JPEGpat00011.jpg12101, [표 1] JPEGpat00012.jpg42175 (여기서, K는 원추곡면 계수, A,B,C,D는 비구면 계수, y는 렌즈에 입사되는 광선의 높이, c는 렌즈 곡률임) 및 [표 2] JPEGpat00013.jpg41175 의 관계로 특정되며, 화각이 40도급인 것을 특징으로 한다.