TY - JOUR
T1 - An alignment method for the reflective zoom system by applying vector wavefront aberration theory
AU - Zhou, Jide
AU - Chang, Jun
AU - Ouyang, Jiao
AU - Zhang, Ke
AU - Xie, Guijuan
AU - Yang, Shengyi
N1 - Publisher Copyright:
© 2015 Elsevier GmbH. All rights reserved.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The image quality of the reflective zoom system is strongly reduced when the position of the mirror is changed during the zooming process. A new alignment method based on vector wavefront aberration theory is suggested in order to surmount this problem during the zoom process. During the three-mirror reflective zoom system zooming process, the secondary mirror plays an active role and the tertiary mirror plays a complementary role. This feature enables adjustment of the tertiary mirror to compensate for the misalignment of the secondary mirror in the zoom process. The alignment of a three-mirror reflective zoom system was simulated. First, we imposed a feeble maladjustment on the secondary mirror as its position was changed during the zooming process. Then, we obtained the compensation values for the tertiary mirror by using the vector wavefront aberration theory. Lastly, the compensation values were imported to be applied to a misaligned three-mirror reflective zoom system. The image quality of the zoom system prior to and after the application of our proposed alignment method validates its correctness and viability.
AB - The image quality of the reflective zoom system is strongly reduced when the position of the mirror is changed during the zooming process. A new alignment method based on vector wavefront aberration theory is suggested in order to surmount this problem during the zoom process. During the three-mirror reflective zoom system zooming process, the secondary mirror plays an active role and the tertiary mirror plays a complementary role. This feature enables adjustment of the tertiary mirror to compensate for the misalignment of the secondary mirror in the zoom process. The alignment of a three-mirror reflective zoom system was simulated. First, we imposed a feeble maladjustment on the secondary mirror as its position was changed during the zooming process. Then, we obtained the compensation values for the tertiary mirror by using the vector wavefront aberration theory. Lastly, the compensation values were imported to be applied to a misaligned three-mirror reflective zoom system. The image quality of the zoom system prior to and after the application of our proposed alignment method validates its correctness and viability.
KW - Computer-aided alignment
KW - Data dynamic exchange
KW - Reflective zoom system
KW - Vector wavefront aberration theory
UR - http://www.scopus.com/inward/record.url?scp=84949509526&partnerID=8YFLogxK
U2 - 10.1016/j.ijleo.2015.10.084
DO - 10.1016/j.ijleo.2015.10.084
M3 - Article
AN - SCOPUS:84949509526
SN - 0030-4026
VL - 127
SP - 748
EP - 751
JO - Optik
JF - Optik
IS - 2
ER -