Paper Titles
The Application of Surface Fairing Technique in Progressive Lens Processing
p.1246
Intelligent Vision Based Technique Using ANN for Surface Finish Assessment of Machined Components
p.1251
General Study on the Dimming Control of the LED Lighting Device
p.1257
A Study of the Scallop Generation Mechanism in Ultra-Precision Raster Milling
p.1262
Modeling and Tolerancing for Complex Aperture Imaging Systems
p.1268
A Framework of a Surface Generation Model in Fast Tool Servo (FTS) Machining of Optical Microstructures
p.1274
Investigation on the Modeling and Ageing Characteristics of the HID Car Headlight Automotive System
p.1280
Grain Size Effect in Sheet Metal Microforming Simulation Adopting Strain Gradient Concept
p.1285
Target Tracking in Micro Injection Molding
p.1292

Modeling and Tolerancing for Complex Aperture Imaging Systems

Article Preview

Abstract:

To analyze the effects of fabrication and alignment errors on optical systems with complex apertures such as a segmented telescope, a visual basic routine (VBR) is developed using CODE V’s COM interface. One of the eminent features of this VBR is its graphical user interface (GUI). The GUI facilitates the user to model different types of segmentations quickly and precisely. The input parameters describe the basic shapes of the segments (polygon or sector), the chamfers at their corners, and the gaps between them. Fabrication errors (i.e. surface errors and alignment errors such as decenters and tilts for each segment) can also be introduced easily and effectively through the GUI. Geometrical and diffraction-based analyses can then be performed to study and analyze the effects of these errors on the imaging quality of the optical system. Results of tolerance analysis are presented for a test system, which require a very stringent tolerance to be placed on the discrepancy among the radii of curvature for different segments. In short, the VBR is a user friendly and a flexible tool with its application scope in designing complex aperture optical systems.

You might also be interested in these eBooks
Optics Design and Precision Manufacturing Technologies View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 364-366)

Pages:

1268-1273

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.364-366.1268

Citation:

Cite this paper

Online since:

December 2007

Authors:

De Wen Cheng, Yong Tian Wang, M.M. Talha, Jun Chang

Keywords:

CODE V, Complex Aperture, Segmented Mirrors, Tolerance

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] C. F. Lillie, Large deployable telescopes for future space observatories, Proc. SPIE, Vol. 5899, 58990D, (2005).

Google Scholar

[2] P. K. Manhart, J. Michael Rodger, Segmented mirror, manufacturing and alignment tolerances (SMMAT), Proc. SPIE, Vol. 1114, 387-405, (1989).

DOI: 10.1117/12.960843

Google Scholar

[3] James Contreras, Mitigation of 3rd order spherical, coma and astigmatism using segmented mirrors, Proc. SPIE, Vol. 6271, 62710J, (2006).

DOI: 10.1117/12.669362

Google Scholar

[4] Gleckler, Anthony Duane, Edge-matched segmented mirrors for adaptive optics, Ph.D. Dissertation, The University of Arizona, (1994).

Google Scholar

[5] Dewen Cheng, Yongtian Wang, Jun Chang and M. M. Talha, Mathematical and computer model for designing telescope with segmented-mirror, Proc. SPIE-OSA (International Optical Design Conference), Vol. 6342, 63422B_1-11, (2006).

DOI: 10.1364/iodc.2006.me3

Google Scholar

[6] CODE V 9. 6 Introductory User's Guide.

Google Scholar

[7] Jiaguang Sun, Computer Graphics (Tsinghua University Publication, Beijing, 1986).

Google Scholar

[8] Jack B. Kuipers, Quaternions and Rotation Sequences (Princeton University Press, Princeton, 1998), Chap. 7.

Google Scholar

[9] Jose M. Rodriguez-Gonzalez and Jesus J. Fuensalida, Diffractional treatment of curvature sensing in segmented-mirror telescopes, Proc. SPIE, Vol. 4837, pp.726-736, (2003).

DOI: 10.1117/12.457992

Google Scholar