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Hyper Suprime-Cam: conceptual design to introduce spectroscopic mode

机译：Hyper Suprime-Cam：概念设计引入光谱模式

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Hyper Suprime-Cam (HSC) is the wide-field CCD camera which is attached to the prime focus of SubaruTelescope. It covers the field of view of 1.5 degree in diameter by 116 2k x 4k fully-depleted CCDs. In thispaper, we present the conceptual design of optics and mechanics how to introduce spectroscopic mode to thissimple imager HSC. The design is based on the idea that the optical elements such as collimeter, grisms andcamera lenses are integrated as a ’filter’ of HSC. The incident light is folded by pickup mirror at filter layer andintroduced to the filter space. After passing the slit, the incident light is collimated by the collimeter lens anddivided into three wavelength ranges by dichroic mirrors. The collimated beam in each wavelength range is fedto the grism and dispersed. The dispersed beam is converged by the camera lens and folded by 45 degree mirrorto the direction parallel to the optical axis. The resultant spectra are imaged on the main CCDs on the focalplane. The space allowed for filters is 600 mm in diameter and 42 mm thick, which is very tight but we areable to design spectroscopic optics with some difficulties. The spectral resolution is designed to be more than1000 and the wavelength coverage is targeted to be 370–1050 nm to realize medium-resolution spectroscopy forvarious type of objects. We show the optical design of collimeter, grism and camera lenses together with themechanical layout of the spectroscopic optics.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译：超级Suprime-Cam（HSC）是连接到SubaruTelescope主要焦点的宽视场CCD摄像机。它涵盖了116个2k x 4k的全耗尽CCD直径为1.5度的视场。在本文中，我们介绍了光学和力学的概念设计，如何将光谱模式引入这种简单的成像仪HSC。该设计基于这样的想法：将诸如准直仪，棱镜和相机镜头之类的光学元件集成为HSC的“滤镜”。入射光由拾取镜在滤光片层折叠并引入滤光片空间。通过狭缝后，入射光被准直透镜准直，并通过二向色镜分为三个波长范围。在每个波长范围内的准直光束被馈送到研磨剂并被分散。分散的光束被相机镜头会聚，并以45度镜面向平行于光轴的方向折叠。所得光谱成像在焦平面上的主CCD上。滤光片允许的直径为600毫米，厚度为42毫米，非常狭窄，但我们能够设计光谱光学元件时遇到一些困难。光谱分辨率设计为大于1000，波长覆盖范围为370–1050 nm，以实现各种类型对象的中分辨率光谱。我们展示了准直仪，棱镜和相机镜头的光学设计以及分光镜光学系统的机械布局。©（2012）COPYRIGHT光电仪器工程师协会（SPIE）。摘要的下载仅允许个人使用。

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