Dr. Hung-Hsu Ling Profile

Dr. Hung-Hsu Ling

Project Specialist at Inst of Astronomy & Astrophysics - Academia Sinica

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 29 August 2022 Poster + Paper

Poster + Paper

Prime focus spectrograph (PFS) for the Subaru Telescope: the prime focus instrument

Shiang-Yu Wang, Masahiko Kimura, Chi-Hung Yan, Yin-Chang Chang, Shu-Fu Hsu, Jennifer Karr, Hsin-Yo Chen, Pin-Jie Huang, Chih-Yi Wen, Richard C. Y. Chou, Hung-Hsu Ling, Naoyuki Tamura, Yuki Moritani, Julien Rousselle, Hiroshige Yoshida, Shintaro Koshida, Naruhisa Takato, Dan Reiley, Mitsuko Roberts, James Gunn, Craig Loomis, Robert Lupton, Neven Caplar, Hassan Siddiqui, Décio Ferreira, Leandro Henrique dos Santos, Ligia Souza Oliveira, Antonio Cesar de Oliveira, Lucas Souza Marrara, Maximilian Fabricius, Graham Murray

Proceedings Volume 12184, 121846R (2022) https://doi.org/10.1117/12.2629098

KEYWORDS: Calibration, Telescopes, Optical fibers, Spectrographs, Cameras, Control systems, Astronomy, Signal processing, Glasses, Electronics

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Proceedings Article | 29 August 2022 Presentation + Paper

Presentation + Paper

The mosaic CMOS wide field camera for transneptunian automatic occultation survey

Shiang-Yu Wang, Bo-Jhou Wang, Hung-Hsu Ling, Yin-Chang Chang, Shu-Fu Hsu, Hsin-Yo Chen, Pin-Jie Huang, Chung-Kai Huang, Matthew Lehner, John Geary, Stephen Amato, Andrew Szentgyorgyi, Timothy Norton, Charles Alcock

Proceedings Volume 12184, 121840S (2022) https://doi.org/10.1117/12.2628438

KEYWORDS: Cameras, Sensors, Stars, Telescopes, Field programmable gate arrays, Signal processing, CMOS sensors, Video processing, Control systems

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Proceedings Article | 10 March 2021 Presentation + Paper

Presentation + Paper

Prime Focus Spectrograph (PFS) for the Subaru telescope: a next-generation facility instrument of the Subaru telescope has started coming

Naoyuki Tamura, Naruhisa Takato, Yuki Moritani, Kiyoto Yabe, Yuki Ishizuka, Yukiko Kamata, Ali Allaoui, Stéphane Arnouts, Robert Barkhouser, Philippe Balard, Rudy Barette, Mohamed Belhadi, Jill Burnham, Neven Caplar, Michael Carr, Pierre-Yves Chabaud, Yin-Chang Chang, Hsin-Yo Chen, Richard Chou, You-Hua Chu, Judith Cohen, Ricardo Costa, Thibaut Crauchet, Rodrigo de Almeida, Antonio de Oliveira, Ligia de Oliveira, Kjetil Dohlen, Leandro dos Santos, Richard Ellis, Maximilian Fabricius, Décio Ferreira, Hisanori Furusawa, Javier Garcia-Carpio, Mirek Golebiowski, Aidan Gray, James Gunn, Albert Harding, Randolph Hammond, Murdock Hart, Timothy Heckman, Stephen Hope, Shu-Fu Hsu, Yen-Sang Hu, Pin-Jie Huang, Marc Jaquet, Eric Jeschke, Yipeng Jing, Erin Kado-Fong, Jennifer Karr, Satoshi Kawanomoto, Masahiko Kimura, Michitaro Koike, Eiichiro Komatsu, Shintaro Koshida, Vincent Le Brun, Olivier Le Fèvre, Arnaud Le Fur, David Le Mignant, Hung-Hsu Ling, Craig Loomis, Robert Lupton, Fabrice Madec, Danilo Marchesini, Edouard Marguerite, Lucas Marrara, Dmitry Medvedev, Sogo Mineo, Hitoshi Murayama, Graham Murray, Youichi Ohyama, Hirofumi Okita, Yuki Okura, Masato Onodera, Joseph Orndorff, Sandrine Pascal, Joshua Peebles, Lucio Ramos, Daniel Reiley, Martin Reinecke, Mitsuko Roberts, Josimar Rosa, Julien Rousselle, Mira Sarkis, Alain Schmitt, Michael Seiffert, Kiaina Schubert, Hassan Siddiqui, Stephen Smee, Laerte Sodré, Michael Strauss, Christian Surace, Manuchehr Taghizadeh-Popp, Philip Tait, Masahiro Takada, Satoshi Takita, Tomonori Tamura, Masayuki Tanaka, Yoko Tanaka, Aniruddha Thakar, Didier Vibert, Shiang-Yu Wang, Chih-Yi Wen, Suzanne Werner, Matthew Wung, Yoshihiko Yamada, Takuji Yamashita, Chi-Hung Yan, Naoki Yasuda, Hiroshige Yoshida, Michitoshi Yoshida

Proceedings Volume 11447, 1144713 (2021) https://doi.org/10.1117/12.2562206

KEYWORDS: Spectrographs, Telescopes, Cameras, Imaging systems, Multiplexing, Optical fibers, Hardware testing, Metrology, Observatories, Visible radiation

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Prime Focus Spectrograph (PFS): the prime focus instrument

Shiang-Yu Wang, Pin-Jie Huang, Hsin-Yo Chen, Masahiko Kimura, Chih-Yi Wen, Chi-Hung Yan, Jennifer Karr, Richard C. Y. Chou, Yin-Chang Chang, Shu-Fu Hsu, Yen-Shan Hu, Hung-Hsu Ling, Dan Reiley, Mitsuko Roberts, James Gunn, Craig Loomis, Robert Lupton, Hassan Siddiqui, Graham Murray, Decio Ferreira, Leandro Henrique dos Santos, Ligia Souza Oliveira, Antonio Cesar de Oliveira, Lucas Souza Marrara, Naoyuki Tamura, Yuki Moritani, Naruhisa Takato

Proceedings Volume 11447, 114477V (2020) https://doi.org/10.1117/12.2561194

KEYWORDS: Spectrographs, Optical fibers, Telescopes, Optical instrument design, Optical design, Content addressable memory, Interfaces, Optical benches, Cameras, Fiber optic illuminators

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

The characteristic of Teledyne e2v CIS 113 CMOS sensors

Shiang-Yu Wang, Hung-Hsu Ling, Bo-Jhou Wang, John Geary, Shu-Fu Hsu, Jérôme Pratlong, Matthew Lehner, Paul Jorden

Proceedings Volume 11454, 114542P (2020) https://doi.org/10.1117/12.2561204

KEYWORDS: Copper indium disulfide, CMOS sensors, Sensors, Cryogenics, Silicon, Stars, Charge-coupled devices, Quantum efficiency, Capacitors, Clocks

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Proceedings Article | 27 July 2018 Presentation + Paper

Presentation + Paper

Prime Focus Spectrograph (PFS) for the Subaru telescope: ongoing integration and future plans

Naoyuki Tamura, Naruhisa Takato, Atsushi Shimono, Yuki Moritani, Kiyoto Yabe, Yuki Ishizuka, Yukiko Kamata, Akitoshi Ueda, Hrand Aghazarian, Stephané Arnouts, Robert Barkhouser, Philippe Balard, Rudy Barette, Mohamed Belhadi, Jill Burnham, Neven Caplar, Michael Carr, Pierre-Yves Chabaud, Yin-Chang Chang, Hsin-Yo Chen, Chueh-Yi Chou, You-Hua Chu, Judith Cohen, Rodorigo de Almeida, Antonio de Oliveira, Lígia de Oliveira, Richard Dekany, Kjetil Dohlen, Jesulino dos Santos, Leandro dos Santos, Richard Ellis, Maximilian Fabricius, Decio Ferreira, Hisanori Furusawa, Javier Garcia-Carpio, Mirek Golebiowski, Johannes Gross, James Gunn, Randolph Hammond, Albert Harding, Murdock Hart, Timothy Heckman, Paul Ho, Stephen Hope, David Hover, Shu-Fu Hsu, Yen-Shan Hu, Ping-Jie Huang, Sara Jamal, Marc Jaquet, Eric Jeschke, Yipeng Jing, Erin Kado-Fong, Jeniffer Karr, Masahiko Kimura, Matthew King, Michitaro Koike, Eiichiro Komatsu, Vincent Le Brun, Olivier Le Fèvre, Arnaud Le Fur, David Le Mignant, Hung-Hsu Ling, Craig Loomis, Robert Lupton, Fabrice Madec, Peter Mao, Danilo Marchesini, Lucas Marrara, Dmitry Medvedev, Sogo Mineo, Yosuke Minowa, Hitoshi Murayama, Graham Murray, Youichi Ohyama, Masato Onodera, Joseph Orndorff, Sandrine Pascal, Josh Peebles, Guillaume Pernot, Raphael Pourcelot, Daniel Reiley, Martin Reinecke, Mitsuko Roberts, Josimar Rosa, Julien Rousselle, Alain Schmitt, Mark Schwochert, Micheal Seiffert, Hassan Siddiqui, Stephen Smee, Laerte Sodré, Aaron Steinkraus, Michael Strauss, Christian Surace, Philip Tait, Masahiro Takada, Tomonori Tamura, Masayuki Tanaka, Yoko Tanaka, Aniruddha Thakar, Orlando Verducci, Didier Vibert, Shiang-Yu Wang, Zuo Wang, Chih-Yi Wen, Suzanne Werner, Yoshihiko Yamada, Chi-Hung Yan, Naoki Yasuda, Hiroshige Yoshida, Michitoshi Yoshida

Proceedings Volume 10702, 107021C (2018) https://doi.org/10.1117/12.2311871

KEYWORDS: Telescopes, Spectrographs, Optical fibers, Astronomy, Observatories, Cameras, Imaging systems, Astronomical telescopes, Physics, Prototyping

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Proceedings Article | 9 July 2018 Paper

Paper

Metrology camera system of prime focus spectrograph for Subaru telescope

Shiang-Yu Wang, Richard C. Y. Chou, Pin-Jie Huang, Yin-Chang Chang, Hung-Hsu Ling, Chi-Hung Yan, Jennifer Karr, Shu-Fu Hsu, Hsin-Yo Chen, Yen-Shan Hu, James Gunn, Dan Reiley, Naoyuki Tamura, Naruhisa Takato, Yuki Moritani, Atsushi Shimono

Proceedings Volume 10702, 107027H (2018) https://doi.org/10.1117/12.2311902

KEYWORDS: Optical fibers, Cameras, Telescopes, Metrology, Point spread functions, Control systems, Image quality, Camera shutters, Light emitting diodes, Spectrographs

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Proceedings Article | 9 August 2016 Paper

Paper

The current status of prime focus instrument of Subaru prime focus spectrograph

Shiang-Yu Wang, Mark Schwochert, Pin-Jie Huang, Hsin-Yo Chen, Masahiko Kimura, Richard C. Y. Chou, Yin-Chang Chang, Yen-Sang Hu, Hung-Hsu Ling, Chaz Morantz, Dan Reiley, Peter Mao, David Braun, Chih-Yi Wen, Chi-Hung Yan, Jennifer Karr, James Gunn, Graham Murray, Naoyuki Tamura, Naruhisa Takato, Atsushi Shimono, Decio Ferreira, Leandro Henrique dos Santos, Ligia Souza Oliveira, Antonio Cesar de Oliveira, Lucas Souza Marrara

Proceedings Volume 9908, 990882 (2016) https://doi.org/10.1117/12.2232044

KEYWORDS: Space telescopes, Telescopes, Calibration, Temperature metrology, Cameras, Optical fibers, Spectrographs, Sensors, Glasses, Charge-coupled devices

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Proceedings Article | 9 August 2016 Paper

Paper

Metrology camera system of prime focus spectrograph for Suburu telescope

Shiang-Yu Wang, Richard C. Y. Chou, Pin-Jie Huang, Hung-Hsu Ling, Jennifer Karr, Yin-Chang Chang, Yen-Sang Hu, Shu-Fu Hsu, Hsin-Yo Chen, James Gunn, Dan Reiley, Naoyuki Tamura, Naruhisa Takato, Atsushi Shimono

Proceedings Volume 9908, 990881 (2016) https://doi.org/10.1117/12.2232035

KEYWORDS: Optical fibers, Spectrographs, Telescopes, Cameras, Metrology, Control systems, Mirrors, Point spread functions, Spherical lenses, Optical alignment

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Proceedings Article | 9 August 2016 Paper

Paper

The prototype cameras for trans-Neptunian automatic occultation survey

Shiang-Yu Wang, Hung-Hsu Ling, Yen-Sang Hu, John Geary, Yin-Chang Chang, Hsin-Yo Chen, Stephen Amato, Pin-Jie Huang, Jerome Pratlong, Andrew Szentgyorgyi, Matthew Lehner, Timothy Norton, Paul Jorden

Proceedings Volume 9908, 990846 (2016) https://doi.org/10.1117/12.2232062

KEYWORDS: Cameras, Sensors, Copper indium disulfide, Prototyping, CMOS sensors, Telescopes, Control systems, Signal processing, Imaging systems, Electronics

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Proceedings Article | 9 August 2016 Paper

Paper

Prime Focus Spectrograph (PFS) for the Subaru telescope: overview, recent progress, and future perspectives

Naoyuki Tamura, Naruhisa Takato, Atsushi Shimono, Yuki Moritani, Kiyoto Yabe, Yuki Ishizuka, Akitoshi Ueda, Yukiko Kamata, Hrand Aghazarian, Stéphane Arnouts, Gabriel Barban, Robert Barkhouser, Renato Borges, David Braun, Michael Carr, Pierre-Yves Chabaud, Yin-Chang Chang, Hsin-Yo Chen, Masashi Chiba, Richard C. Chou, You-Hua Chu, Judith Cohen, Rodrigo de Almeida, Antonio de Oliveira, Ligia S. de Oliveira, Richard Dekany, Kjetil Dohlen, Jesulino dos Santos, Leandro dos Santos, Richard Ellis, Maximilian Fabricius, Didier Ferrand, Décio Ferreira, Mirek Golebiowski, Jenny Greene, Johannes Gross, James Gunn, Randolph Hammond, Albert Harding, Murdock Hart, Timothy Heckman, Christopher Hirata, Paul Ho, Stephen Hope, Larry Hovland, Shu-Fu Hsu, Yen-Shan Hu, Ping-Jie Huang, Marc Jaquet, Yipeng Jing, Jennifer Karr, Masahiko Kimura, Matthew King, Eiichiro Komatsu, Vincent Le Brun, Olivier Le Fèvre, Arnaud Le Fur, David Le Mignant, Hung-Hsu Ling, Craig Loomis, Robert Lupton, Fabrice Madec, Peter Mao, Lucas Marrara, Claudia Mendes de Oliveira, Yosuke Minowa, Chaz Morantz, Hitoshi Murayama, Graham Murray, Youichi Ohyama, Joseph Orndorff, Sandrine Pascal, Jefferson Pereira, Daniel Reiley, Martin Reinecke, Andreas Ritter, Mitsuko Roberts, Mark Schwochert, Michael Seiffert, Stephen Smee, Laerte Sodre, David Spergel, Aaron Steinkraus, Michael Strauss, Christian Surace, Yasushi Suto, Nao Suzuki, John Swinbank, Philip Tait, Masahiro Takada, Tomonori Tamura, Yoko Tanaka, Laurence Tresse, Orlando Verducci, Didier Vibert, Clement Vidal, Shiang-Yu Wang, Chih-Yi Wen, Chi-Hung Yan, Naoki Yasuda

Proceedings Volume 9908, 99081M (2016) https://doi.org/10.1117/12.2232103

KEYWORDS: Telescopes, Spectrographs, Imaging systems, Cameras, Observatories, Calibration, Astronomy, Stars, Sensors, Galactic astronomy

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SPIE Journal Paper | 23 June 2015 Open Access

Open Access

Prime Focus Spectrograph for the Subaru telescope: massively multiplexed optical and near-infrared fiber spectrograph

Hajime Sugai, Naoyuki Tamura, Hiroshi Karoji, Atsushi Shimono, Naruhisa Takato, Masahiko Kimura, Youichi Ohyama, Akitoshi Ueda, Hrand Aghazarian, Márcio de Arruda, Robert Barkhouser, Charles Bennett, Steve Bickerton, Alexandre Bozier, David Braun, Khanh Bui, Christopher Capocasale, Michael Carr, Bruno Castilho, Yin-Chang Chang, Hsin-Yo Chen, Chueh-Yi Chou, Olivia Dawson, Richard Dekany, Eric Ek, Richard Ellis, Robin English, Didier Ferrand, Décio Ferreira, Charles Fisher, Mirek Golebiowski, James Gunn, Murdock Hart, Timothy Heckman, Paul T. Ho, Stephen Hope, Larry Hovland, Shu-Fu Hsu, Yen-Shan Hu, Pin-Jie Huang, Marc Jaquet, Jennifer Karr, Jason Kempenaar, Matthew King, Olivier Le Fèvre, David Le Mignant, Hung-Hsu Ling, Craig Loomis, Robert Lupton, Fabrice Madec, Peter Mao, Lucas Souza Marrara, Brice Ménard, Chaz Morantz, Hitoshi Murayama, Graham Murray, Antonio Cesar de Oliveira, Claudia L. de Oliveira, Lígia de Oliveira, Joseph Orndorff, Rodrigo M. de Paiva Vilaça, Eamon Partos, Sandrine Pascal, Thomas Pegot-Ogier, Daniel Reiley, Reed Riddle, Leandro dos Santos, Jesulino dos Santos, Mark Schwochert, Michael Seiffert, Stephen Smee, Roger Smith, Ronald Steinkraus, Laerte Sodré, David Spergel, Christian Surace, Laurence Tresse, Clément Vidal, Sébastien Vives, Shiang-Yu Wang, Chih-Yi Wen, Amy Wu, Rosemary Wyse, Chi-Hung Yan

JATIS, Vol. 1, Issue 03, 035001, (June 2015) https://doi.org/10.1117/12.10.1117/1.JATIS.1.3.035001

KEYWORDS: Spectrographs, Telescopes, Cameras, Metrology, Microlens, Connectors, Astronomical telescopes, Sensors, Fiber science, Spectral resolution

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Proceedings Article | 28 July 2014 Paper

Paper

High speed wide field CMOS camera for Transneptunian Automatic Occultation Survey

Shiang-Yu Wang, John Geary, Stephen Amato, Yen-Sang Hu, Hung-Hsu Ling, Pin-Jie Huang, Gabor Furesz, Hsin-Yo Chen, Yin-Chang Chang, Andrew Szentgyorgyi, Matthew Lehner, Timothy Norton

Proceedings Volume 9147, 914772 (2014) https://doi.org/10.1117/12.2055606

KEYWORDS: Cameras, CMOS sensors, Stars, Sensors, Telescopes, Control systems, Field programmable gate arrays, Electronics, Signal processing, Charge-coupled devices

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Proceedings Article | 24 July 2014 Paper

Paper

Prime focus instrument of prime focus spectrograph for Subaru telescope

Shiang-Yu Wang, David Braun, Mark Schwochert, Pin-Jie Huang, Masahiko Kimura, Hsin-Yo Chen, Daniel Reiley, Peter Mao, Charles Fisher, Naoyuki Tamura, Yin-Chang Chang, Yen-Sang Hu, Hung-Hsu Ling, Chih-Yi Wen, Richard C.-Y. Chou, Naruhisa Takato, Hajime Sugai, Youichi Ohyama, Hiroshi Karoji, Atsushi Shimono, Akitoshi Ueda

Proceedings Volume 9147, 91475Q (2014) https://doi.org/10.1117/12.2057247

KEYWORDS: Cameras, Optical fibers, Telescopes, Fiber optic illuminators, Interfaces, Stars, Spectrographs, Optical benches, Imaging systems, Sensors

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Proceedings Article | 24 July 2014 Paper

Paper

Metrology camera system of prime focus spectrograph for Subaru telescope

Shiang-Yu Wang, Chueh-Yi Chou, Yin-Chang Chang, Pin-Jie Huang, Yen-Sang Hu, Hsin-Yo Chen, Naoyuki Tamura, Naruhisa Takato, Hung-Hsu Ling, James Gunn, Jennifer Karr, Chi-Hung Yan, Peter Mao, Youichi Ohyama, Hiroshi Karoji, Hajime Sugai, Atsushi Shimono

Proceedings Volume 9147, 91475S (2014) https://doi.org/10.1117/12.2055787

KEYWORDS: Cameras, Metrology, Telescopes, Image processing, CMOS sensors, Error analysis, Sensors, Imaging systems, Spectrographs, Mirrors

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Proceedings Article | 23 July 2014 Paper

Paper

Characteristic of e2v CMOS sensors for astronomical applications

Shiang-Yu Wang, Hung-Hsu Ling, Yen-Shan Hu, John Geary, Stephen Amato, Jerome Pratlong, Andrew Pike, Paul Jordan, Matthew Lehner

Proceedings Volume 9154, 91542I (2014) https://doi.org/10.1117/12.2057361

KEYWORDS: Quantum efficiency, Copper indium disulfide, Temperature metrology, CMOS sensors, Sensors, Photodiodes, Astronomy, Video processing, Signal processing, Capacitors

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Proceedings Article | 8 July 2014 Paper

Paper

Progress with the Prime Focus Spectrograph for the Subaru Telescope: a massively multiplexed optical and near-infrared fiber spectrograph

Hajime Sugai, Naoyuki Tamura, Hiroshi Karoji, Atsushi Shimono, Naruhisa Takato, Masahiko Kimura, Youichi Ohyama, Akitoshi Ueda, Hrand Aghazarian, Marcio de Arruda, Robert Barkhouser, Charles Bennett, Steve Bickerton, Alexandre Bozier, David Braun, Khanh Bui, Christopher Capocasale, Michael Carr, Bruno Castilho, Yin-Chang Chang, Hsin-Yo Chen, Richard Chou, Olivia Dawson, Richard Dekany, Eric Ek, Richard Ellis, Robin English, Didier Ferrand, Décio Ferreira, Charles Fisher, Mirek Golebiowski, James Gunn, Murdock Hart, Timothy Heckman, Paul Ho, Stephen Hope, Larry Hovland, Shu-Fu Hsu, Yen-Sang Hu, Pin Jie Huang, Marc Jaquet, Jennifer Karr, Jason Kempenaar, Matthew King, Olivier Le Fèvre, David Le Mignant, Hung-Hsu Ling, Craig Loomis, Robert Lupton, Fabrice Madec, Peter Mao, Lucas Marrara, Brice Ménard, Chaz Morantz, Hitoshi Murayama, Graham Murray, Antonio Cesar de Oliveira, Claudia de Oliveira, Ligia de Oliveira, Joe Orndorff, Rodrigo de Paiva Vilaça, Eamon Partos, Sandrine Pascal, Thomas Pegot-Ogier, Daniel Reiley, Reed Riddle, Leandro Santos, Jesulino dos Santos, Mark Schwochert, Michael Seiffert, Stephen Smee, Roger Smith, Ronald Steinkraus, Laerte Sodré, David Spergel, Christian Surace, Laurence Tresse, Clément Vidal, Sebastien Vives, Shiang-Yu Wang, Chih-Yi Wen, Amy Wu, Rosie Wyse, Chi-Hung Yan

Proceedings Volume 9147, 91470T (2014) https://doi.org/10.1117/12.2054294

KEYWORDS: Spectrographs, Telescopes, Cameras, Microlens, Metrology, Structured optical fibers, Connectors, Charge-coupled devices, Sensors, Image quality

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The Prime Focus Spectrograph (PFS) is an optical/near-infrared multi-fiber spectrograph with 2394 science fibers, which are distributed in 1.3 degree diameter field of view at Subaru 8.2-meter telescope. The simultaneous wide wavelength coverage from 0.38 μm to 1.26 μm, with the resolving power of 3000, strengthens its ability to target three main survey programs: cosmology, Galactic archaeology, and galaxy/AGN evolution. A medium resolution mode with resolving power of 5000 for 0.71 μm to 0.89 μm also will be available by simply exchanging dispersers. PFS takes the role for the spectroscopic part of the Subaru Measurement of Images and Redshifts (SuMIRe) project, while Hyper Suprime-Cam (HSC) works on the imaging part. HSC’s excellent image qualities have proven the high quality of the Wide Field Corrector (WFC), which PFS shares with HSC. The PFS collaboration has succeeded in the project Preliminary Design Review and is now in a phase of subsystem Critical Design Reviews and construction. To transform the telescope plus WFC focal ratio, a 3-mm thick broad-band coated microlens is glued to each fiber tip. The microlenses are molded glass, providing uniform lens dimensions and a variety of refractive-index selection. After successful production of mechanical and optical samples, mass production is now complete. Following careful investigations including Focal Ratio Degradation (FRD) measurements, a higher transmission fiber is selected for the longest part of cable system, while one with a better FRD performance is selected for the fiber-positioner and fiber-slit components, given the more frequent fiber movements and tightly curved structure. Each Fiber positioner consists of two stages of piezo-electric rotary motors. Its engineering model has been produced and tested. After evaluating the statistics of positioning accuracies, collision avoidance software, and interferences (if any) within/between electronics boards, mass production will commence. Fiber positioning will be performed iteratively by taking an image of artificially back-illuminated fibers with the Metrology camera located in the Cassegrain container. The camera is carefully designed so that fiber position measurements are unaffected by small amounts of high special-frequency inaccuracies in WFC lens surface shapes. Target light carried through the fiber system reaches one of four identical fast-Schmidt spectrograph modules, each with three arms. All optical glass blanks are now being polished. Prototype VPH gratings have been optically tested. CCD production is complete, with standard fully-depleted CCDs for red arms and more-challenging thinner fully-depleted CCDs with blue-optimized coating for blue arms. The active damping system against cooler vibration has been proven to work as predicted, and spectrographs have been designed to avoid small possible residual resonances.

Proceedings Article | 24 September 2012 Paper

Paper

Prime focus spectrograph: Subaru's future

Hajime Sugai, Hiroshi Karoji, Naruhisa Takato, Naoyuki Tamura, Atsushi Shimono, Youichi Ohyama, Akitoshi Ueda, Hung-Hsu Ling, Marcio Vital de Arruda, Robert Barkhouser, Charles Bennett, Steve Bickerton, David Braun, Robin Bruno, Michael Carr, João Batista de Carvalho Oliveira, Yin-Chang Chang, Hsin-Yo Chen, Richard Dekany, Tania Pereira Dominici, Richard Ellis, Charles Fisher, James Gunn, Timothy Heckman, Paul T. Ho, Yen-Shan Hu, Marc Jaquet, Jennifer Karr, Masahiko Kimura, Olivier Le Fèvre, David Le Mignant, Craig Loomis, Robert Lupton, Fabrice Madec, Lucas Marrara, Laurent Martin, Hitoshi Murayama, Antonio Cesar de Oliveira, Claudia Mendes de Oliveira, Ligia Souza de Oliveira, Joseph Orndorff, Rodrigo de Paiva Vilaça, Vanessa Macanhan, Eric Prieto, Jesulino Bispo dos Santos, Michael Seiffert, Stephen Smee, Roger Smith, Laerte Sodré, David Spergel, Christian Surace, Sebastien Vives, Shiang-Yu Wang, Chi-Hung Yan

Proceedings Volume 8446, 84460Y (2012) https://doi.org/10.1117/12.926954

KEYWORDS: Spectrographs, Cameras, Telescopes, Microlens, Sensors, Metrology, Galactic astronomy, Data archive systems, Astronomy, Collimators

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Proceedings Article | 24 September 2012 Paper

Paper

The metrology cameras for Subaru PFS and FMOS

Shiang-Yu Wang, Yen-Shan Hu, Chi-Hung Yan, Yin-Chang Chang, Naoyuki Tamura, Naruhisa Takato, Atsushi Shimono, Jennifer Karr, Youichi Ohyama, Hsin-Yo Chen, Hung-Hsu Ling, Hiroshi Karoji, Hajime Sugai, Akitoshi Ueda

Proceedings Volume 8446, 84464Z (2012) https://doi.org/10.1117/12.925772

KEYWORDS: Cameras, Metrology, Optical fibers, CMOS sensors, Telescopes, Sensors, Imaging systems, Spectrographs, Distortion, CMOS cameras

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Proceedings Article | 24 September 2012 Paper

Paper

Detectors and cryostat design for the SuMIRe Prime Focus Spectrograph (PFS)

James Gunn, Michael Carr, Stephen Smee, Joe Orndorff, Robert Barkhouser, Charles Bennett, Jenny Greene, Timothy Heckman, Hiroshi Karoji, Olivier LeFevre, Hung-Hsu Ling, Laurent Martin, Brice Ménard, Hitoshi Murayama, Eric Prieto, David Spergel, Michael Strauss, Hajime Sugai, Akitoshi Ueda, Shiang-Yu Wang, Rosemary Wyse, Nadia Zakamska

Proceedings Volume 8446, 84464O (2012) https://doi.org/10.1117/12.926279

KEYWORDS: Sensors, Cameras, Spectrographs, Charge-coupled devices, Electronics, Infrared detectors, Electrons, Quantum efficiency, Infrared cameras, Infrared sensors

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