干旱区生态环境知识资源中心(Arid): Full-Aperture Optical Metrology for Inflatable Membrane Mirrors

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DOI	10.1117/12.2569750
	Full-Aperture Optical Metrology for Inflatable Membrane Mirrors
	Quach, Henry; Berkson, Joel; Sirsi, Siddhartha; Choi, Heejoo; Dominguez, Ruben; Duffy, Brian; Lesser, David; Takashima, Yuzuru; Palisoc, Art; Walker, Christopher; Kim, Dae Wook
通讯作者	Kim, DW (corresponding author), Univ Arizona, Wyant Coll Opt Sci, 1630 E Univ Blvd, Tucson, AZ 85721 USA. ; Kim, DW (corresponding author), Univ Arizona, Dept Astron, 933 N Cherry Ave, Tucson, AZ 85721 USA. ; Kim, DW (corresponding author), Univ Arizona, Large Binocular Telescope Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA.
会议名称	Conference on Optical Manufacturing and Testing XIII
会议日期	AUG 24-SEP 04, 2020
会议地点	ELECTR NETWORK
英文摘要	The ability of space telescopes to see into nascent protostellar systems and even further into our universe is driven by the size of their deployable light collection area. While large monolithic mirrors typically weigh tons, inflatable membrane mirrors present a scalable, ultralightweight alternative. Leveraging decades of advances in adaptive optics technology, the possibility of a well-corrected 20 meter-class space observatory such as the Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS) is strikingly feasible. However, with great aperture size, comes great metrology requirements. Membrane reflectors are characteristically structured as one transparent and one metallized polymer membrane sealed around a steel tensioning ring. The inflated surface does not naturally conform to a known or prescribed conic but an approximate Hencky surface. Furthermore, multiple internal reflections and polarization interactions between the dielectric and metal layers disturb coherent light that probes it. A non-contact, full-aperture testing method is needed and further, one that can test highly varying membranes after thermoforming too. We present our method in obtaining the absolute shape of thermally formed, inflatable reflectors for space telescopes. Our work measures a 1-meter prototype of the OASIS primary inflatable mirror. Evolving from laser distance scanning to photogrammetry to deflectometry, our survey of metrology techniques for inflatable membrane optics is discussed.
英文关键词	Membrane Inflatable Mirrors Space Telescopes Hencky Surface Photogrammetry Deflectometry Large Aperture Metrology
来源出版物	OPTICAL MANUFACTURING AND TESTING XIII
ISSN	0277-786X
EISSN	1996-756X
出版年	2020
卷号	11487
ISBN	978-1-5106-3781-8
出版者	SPIE-INT SOC OPTICAL ENGINEERING
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000589983800015
WOS类目	Optics
WOS研究方向	Optics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/337091
作者单位	[Quach, Henry; Berkson, Joel; Sirsi, Siddhartha; Choi, Heejoo; Takashima, Yuzuru; Walker, Christopher; Kim, Dae Wook] Univ Arizona, Wyant Coll Opt Sci, 1630 E Univ Blvd, Tucson, AZ 85721 USA; [Sirsi, Siddhartha; Dominguez, Ruben; Duffy, Brian; Lesser, David; Walker, Christopher; Kim, Dae Wook] Univ Arizona, Dept Astron, 933 N Cherry Ave, Tucson, AZ 85721 USA; [Choi, Heejoo; Kim, Dae Wook] Univ Arizona, Large Binocular Telescope Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA; [Palisoc, Art] LGarde Inc, 15181 Woodlawn Ave, Tustin, CA 92780 USA
推荐引用方式 GB/T 7714	Quach, Henry,Berkson, Joel,Sirsi, Siddhartha,et al. Full-Aperture Optical Metrology for Inflatable Membrane Mirrors[C]:SPIE-INT SOC OPTICAL ENGINEERING,2020.