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CN105242388A 投射光学系统及投影装置 有权

投射光学系统及投影装置
摘要：
本发明提供了一种投射光学系统及投影装置。本发明提供一种从缩小侧的第1像面向放大侧的第2像面进行投射的投射光学系统(1)，其具有：第1折射光学系统(11)，其包含透镜(L1)～(L8)这8个透镜，利用从缩小侧入射的光在放大侧形成第1中间图像(31)；第2折射光学系统(12)，其包含透镜(L9)～(L14)这6个透镜，使缩小侧的第1中间图像(31)在放大侧成像为第2中间图像(32)；以及第1反射光学系统(20)，其包含位于比第2中间图像(32)靠放大侧的位置的正折射力的第1反射面(21a)。
摘要（英）：

There is provided a projection optical system (1) that projects from a first image plane on a reducing side to a second image plane on an enlargement side, including a first refractive optical system (11) that includes eight lenses (L1) to (L8) and forms a first intermediate image (31) on the enlargement side using light that is incident from the reducing side, a second refractive optical system (12) that includes six lenses (L9) to (L14) and forms the first intermediate image (31) on the reducing side into a second intermediate image (32) on the enlargement side, and a first reflective optical system (20) that includes a first reflective surface (21a) with positive refractive power that is positioned closer to the enlargement side than the second intermediate image (32).

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