Modeling and analysis for the mirror tilt angle error of the image mapper

Wanyue Wang; Lijuan Su; Xiaoming Ding; Zhenyi Ai

doi:10.1117/12.2500730

5 November 2018 Modeling and analysis for the mirror tilt angle error of the image mapper

Wanyue Wang, Lijuan Su, Xiaoming Ding, Zhenyi Ai

Proceedings Volume 10815, Optical Design and Testing VIII; 1081516 (2018) https://doi.org/10.1117/12.2500730
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

The snapshot image mapping spectrometer (IMS) is the development of modern optical imaging instruments that combine advanced technologies in medical, biomedicine, remote sensing, etc. The technology has the potential of becoming a fundamental research for high-resolution and high-throughput optical imaging system. The image mapper is the most critical component in the IMS technology and consists of many mirror facets fabricated with a 2D tilt angle. However, these components are very difficult to fabricate and often become the limiting factor in the performance of the system. Therefore, the mirror 2D tilt angle errors are presented for analyzing the center of pupils to be displaced in the virtual apertures in the system. In this research, to accurately describe the relation between reflected light’s steering angle and corresponding mirror facet’s tilt angle. We propose a light ray tracing model which provides a rigorous analytical solution for the relation between mirror facet’s tilt angle and reflected light’s steering angle. Then the mirror tilt angle error model was established to analyze the influence of the image mapper based on reflected light’s steering angle. The results indicate that the tilt angle error increased causes the deviation from the center of the sub aperture, decrease the image intensity and loss of light throughput. The proposed method can be used to estimate the accuracy of sub pupil’s center position, and the conclusions will be helpful in the design and manufacture of the image mapper.

Citation Download Citation

Wanyue Wang, Lijuan Su, Xiaoming Ding, and Zhenyi Ai "Modeling and analysis for the mirror tilt angle error of the image mapper", Proc. SPIE 10815, Optical Design and Testing VIII, 1081516 (5 November 2018); https://doi.org/10.1117/12.2500730

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mirrors

Error analysis

Imaging systems

3D modeling

Image analysis

Manufacturing

Mathematical modeling

Show All Keywords

Keywords/Phrases

Search In:

Publication Years