Facile large-area uniform photolithography of membrane diffractive lens based on vacuum assisted self contact method

Gao, Guohan; Wang, Lihua; Shi, Heng; Liu, Dun; Fan, Bin; Guan, Chunlin

doi:10.1038/s41598-020-65990-2

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…Wang et al developed a 300mm aperture diffraction imaging system and conducted relevant imaging performance experiment (Figure 5) [11]. Gao et al proposed a large-area uniform photolithography technique to manufacture diffractive membrane lens with the average diffraction efficiency over 36.6% [12]. Figure 5.…”

Section: Diffractive Membrane Imaging Technologymentioning

confidence: 99%

Development of new ultra-large aperture optical remote sensing imaging technology

Niu

Zhi

Jiang

et al. 2023

Second International Conference on Optoelectronic Information and Computer Engineering (OICE 2023)

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With the rapid development of earth observation by optical remote sensing satellites, there is an urgent requirement of remote sensing data with high-resolution in environmental monitoring, urban planning and other applications. The resolution of remote sensing images (RSIs) significantly depends on the aperture size of space imaging system. However, limited by manufacturing level and carrying capacity, the traditional optical materials and reflection/refraction imaging principle have encountered a bottleneck in the manufacturing of space imaging system with ultra-large aperture and lightweight. Consequently, it is necessary to develop brand new space optical imaging systems. In this paper, we summarize the imaging mechanism and development history of three ultra-large aperture imaging technologies, including synthetic aperture imaging technology, diffractive membrane imaging technology and rotating synthetic aperture imaging technology, and analyze the challenges existing in their application.

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Section: Diffractive Membrane Imaging Technologymentioning

confidence: 99%

Development of new ultra-large aperture optical remote sensing imaging technology

Niu

Zhi

Jiang

et al. 2023

Second International Conference on Optoelectronic Information and Computer Engineering (OICE 2023)

View full text Add to dashboard Cite

show abstract

“…Traditional pose measurement techniques usually adopt multiple sets of measuring equipment and sensors, which are complicated in structure and require high installation accuracy [ 16 , 17 , 18 ]. It is difficult to meet the pose measurement requirements of the primary lens of a large aperture transmission space telescope, and the calculation process is relatively cumbersome [ 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

A High-Precision Real-Time Pose Measurement Method for the Primary Lens of Large Aperture Space Telescope Based on Laser Ranging

Shi

Wang

et al. 2023

Sensors

Self Cite

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The aperture of space telescopes increases with their required resolution, and the transmission optical systems with long focal length and diffractive primary lens are becoming increasingly popular. In space, the changes in the pose of the primary lens relative to the rear lens group have a significant impact on the imaging performance of the telescope system. The measurement of the pose of the primary lens in real-time and with high-precision is one of the important techniques for a space telescope. In this paper, a high-precision real-time pose measurement method for the primary lens of a space telescope in orbit based on laser ranging is proposed, and a verification system is established. The pose change of the telescope’s primary lens can be easily calculated through six high-precision laser distance changes. The measurement system can be installed freely, which solves the problems of complex system structure and low measurement accuracy in traditional pose measurement techniques. Analysis and experiments show that this method can accurately obtain the pose of the primary lens in real-time. The rotation error of the measurement system is 2 × 10−5 degrees (0.072 arcsecs), and the translation error is 0.2 μm. This study will provide a scientific basis for high-quality imaging of a space telescope.

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Facile large-area uniform photolithography of membrane diffractive lens based on vacuum assisted self contact method

Cited by 2 publications

References 15 publications

Development of new ultra-large aperture optical remote sensing imaging technology

Development of new ultra-large aperture optical remote sensing imaging technology

A High-Precision Real-Time Pose Measurement Method for the Primary Lens of Large Aperture Space Telescope Based on Laser Ranging

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