To refer to this page use:
|Abstract:||The PFS is a multi-object spectrograph fed by 2394 fibers at the prime focus of Subaru telescope. Since the F/# at the prime focus is too fast for the spectrograph, we designed a small concave-plano negative lens to be attached to the tip of each fiber that converts the telescope beam (F/2.2) to F/2.8. We optimized the lens to maximize the number of rays that can be confined inside F/2.8 while maintaining a 1.28 magnification. The microlenses are manufactured by glass molding, and an ultra-broadband AR coating (<1.5% for lambda = 0.38 1.26pm) will be applied to the front surface.|
|Citation:||Takato, Naruhisa, Tanaka, Yoko, Gunn, James E, Tamura, Naoyuki, Shimono, Atsushi, Sugai, Hajime, Karoji, Hiroshi, Ueda, Akitoshi, Waseda, Kouichi, Kimura, Masahiko, Ohyama, Youichi. (2014). Design and performance of a F/#-conversion microlens for Prime Focus Spectrograph at Subaru Telescope. GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY V, 9147 (10.1117/12.2055051|
|Type of Material:||Conference Article|
|Journal/Proceeding Title:||GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY V|
|Version:||Final published version. Article is made available in OAR by the publisher's permission or policy.|
Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.