Center for Adaptive Optics

自适应光学中心

• 批准号: 9876783
• 负责人: Claire Max
• 金额: $ 2506.58万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-11-01 至 2010-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9876783&HistoricalAwards=false
• 关键词: Center; Adaptive; Optics

Center for Adaptive OpticsThe University of California at Santa CruzABSTRACTAdaptive optics is a method for removing the blurring of images caused by changing distortions within optical systems. Turbulence in the Earth's atmosphere causes blurring of astronomical images. In an analogous manner internal imperfections and fluids in the eye cause blurring of images striking the retina. The use of adaptive optics allows groundbased telescopes to see as clearly as if they were in space, and these techniques, when used to look at the retina of the human eye, dramatically sharpens images of the retina.Although adaptive optics was suggested for astronomy in the 1950s, only today are the requisite technologies (optics, computers, lasers) mature enough for adaptive optics to make an important impact on astronomy and vision science. Adaptive optics for astronomy on large telescopes promises a spectacular improvement in resolution, by factors of 10 to 30. Large ground-based telescopes using adaptive optics can even exceed the performance of the Hubble Space Telescope and at much lower cost. Adaptive optics for vision science promises to correct the aberrations of the eye and to provide a powerful tool for understanding the structure and development of cones and rods in the living human retina. It also holds the promise of diagnosing tiny retinal defects before they become large enough to threaten our a person's vision.Adaptive optics systems require the marriage of several very advanced technologies--precision optics, wavefront sensors, deformable mirrors, and lasers--all tied together by high-speed control systems.The Center for Adaptive Optics (CfAO) will concentrate on astronomical and vision science applications of adaptive optics and will reach out to other adaptive optics communities to share technologies. It will develop new instruments optimized for adaptive optics. Examples from astronomy include "integral-field" spectrographs that take spectra of thousands of tiny contiguous regions of the sky simultaneously (for studies of distant galaxies and proto-solar-systems), as well as coronagraphs to image very faint objects close to bright ones (for studies of black holes in galaxies and planets around nearby stars). Instruments to be developed for vision science include a confocal scanning laser opthalmoscope, which achieves high depth resolution as well as lateral resolution. This instrument will make possible high-resolution 3-D reconstruction of retinal blood vessels and of optic nerve fibers that carry signals to the brain.The CfAO will conduct a strong program in science education and outreach, with significant components in the systemic improvement of education, diversification of the trained work force, and enhancement of public scientific literacy.

加州大学圣克鲁斯分校自适应光学中心摘要自适应光学是一种消除光学系统内畸变变化引起的图像模糊的方法。地球大气层的湍流导致天文图像模糊。 以类似的方式，眼睛的内部缺陷和液体会导致视网膜上的图像模糊。自适应光学技术的使用使地面望远镜能够像在太空中一样清晰地看到东西，当这些技术用于观察人眼的视网膜时，可以极大地锐化视网膜的图像。尽管自适应光学技术在 20 世纪 50 年代就被建议用于天文学，但直到今天，必要的技术（光学、计算机、激光）才足够成熟，使自适应光学技术能够对天文学产生重要影响。 天文学和视觉科学。 大型望远镜天文学的自适应光学器件有望将分辨率提高 10 到 30 倍。使用自适应光学器件的大型地面望远镜甚至可以超越哈勃太空望远镜的性能，但成本却低得多。用于视觉科学的自适应光学有望纠正眼睛的像差，并为了解活体人类视网膜中视锥细胞和视杆细胞的结构和发育提供强大的工具。它还有望在微小的视网膜缺陷变得大到足以威胁我们人的视力之前对其进行诊断。自适应光学系统需要结合多种非常先进的技术——精密光学、波前传感器、可变形镜和激光器——所有这些技术都通过高速控制系统连接在一起。自适应光学中心（CfAO）将专注于自适应光学的天文和视觉科学应用，并将接触到 其他自适应光学社区分享技术。 它将开发针对自适应光学优化的新仪器。天文学的例子包括“积分场”摄谱仪，它同时获取天空中数千个微小连续区域的光谱（用于研究遥远的星系和原太阳系统），以及日冕仪，用于对靠近明亮物体的非常微弱的物体进行成像（用于研究星系中的黑洞和附近恒星周围的行星）。为视觉科学开发的仪器包括共焦扫描激光检眼镜，可实现高深度分辨率和横向分辨率。该仪器将使视网膜血管和向大脑传送信号的视神经纤维进行高分辨率 3D 重建成为可能。CfAO 将在科学教育和推广方面开展强有力的计划，其中重要组成部分是系统性的教育改进、受过培训的劳动力的多样化以及提高公众科学素养。