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公开(公告)号：US20180210981A1
公开(公告)日：2018-07-26
申请号：US15841311
申请日：2017-12-14
发明人： JUN ZHU , TONG-TONG GONG , GUO-FAN JIN , SHOU-SHAN FAN
CPC分类号： G06F17/5009 , G02B5/10 , G06F17/5018
摘要： A method for designing a hybrid surface optical system comprises establishing a first initial system; keeping the first initial system unchanged and calculating a plurality of first feature data points, and fitting the first feature data points to obtain a spherical surface; repeating such steps until all spherical surfaces are obtained; calculating a plurality of second feature data points, and fitting the plurality of second feature data points to obtain an aspheric surface; repeating such steps until all aspheric surfaces are obtained; calculating a plurality of third feature data points, and fitting the plurality of third feature data points to obtain a freeform surface; repeating such steps until all freeform surfaces are obtained.
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公开(公告)号：US20180157017A1
公开(公告)日：2018-06-07
申请号：US15672307
申请日：2017-08-09
发明人： TONG-TONG GONG , JUN ZHU , GUO-FAN JIN , SHOU-SHAN FAN
CPC分类号： G02B17/0626 , G02B5/10 , G02B17/0642 , G02B27/0012
摘要： A method for designing an off-axis aspheric optical system comprises establishing an initial system and selecting a plurality of feature rays Ri (i=1, 2 . . . K); solving a plurality of feature data points (P1, P2, . . . Pm) to obtain an initial off-axis aspheric surface Am by surface fitting the plurality of feature data points (P1, P2, . . . Pm), wherein m is less than K; introducing an intermediate point Gm to solve a (m+1)th feature data point Pm+1, and fitting a plurality of feature data points (P1, P2, . . . Pm, Pm+1) to obtain an off-axis aspheric surface Am+1; repeating such steps until a Kth feature data point PK is solved, and fitting a plurality of feature data points (P1, P2, . . . PK) to obtain an off-axis aspheric surface AK; and repeating above steps until all the aspheric surfaces of the off-axis aspheric optical system are obtained.
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公开(公告)号：US20180157016A1
公开(公告)日：2018-06-07
申请号：US15672306
申请日：2017-08-09
发明人： JUN ZHU , TONG-TONG GONG , GUO-FAN JIN , SHOU-SHAN FAN
IPC分类号： G02B17/06
CPC分类号： G02B17/0626 , G02B17/0642
摘要： An off-axis aspheric three-mirror optical system comprises a primary mirror, a secondary mirror, and a tertiary mirror. Relative to a first three-dimensional rectangular coordinates system in space, a second three-dimensional rectangular coordinates system is defined by a primary mirror location, a third three-dimensional rectangular coordinates system is defined by a secondary mirror location, and a fourth three-dimensional rectangular coordinates system is defined by a tertiary mirror location. The primary mirror in the second three-dimensional rectangular coordinates system, the secondary mirror in the third three-dimensional rectangular coordinates system, and the tertiary mirror in the fourth three-dimensional rectangular coordinates system are all sixth-order polynomial aspheric.
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公开(公告)号：US20180210180A1
公开(公告)日：2018-07-26
申请号：US15842834
申请日：2017-12-14
发明人： JUN ZHU , TONG-TONG GONG , GUO-FAN JIN , SHOU-SHAN FAN
CPC分类号： G02B17/0642 , G02B17/0621 , G02B27/0012
摘要： An off-axis hybrid surface three-mirror optical system comprises a primary mirror, a secondary mirror, a tertiary mirror, and an image sensor. A reflective surface of the primary mirror is a sixth-order polynomial freeform surface of xy. A reflective surface of the secondary mirror is a sixth-order polynomial aspheric surface of xy. A reflective surface of the a tertiary mirror is a spherical surface of xy.
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