Dr. Masahito S. Uchiyama Profile

Dr. Masahito S. Uchiyama

Researcher at Photocross Co., Ltd.

SPIE Involvement:

Author

Websites:

Company Website

Publications (14)

Proceedings Article | 26 August 2024 Poster + Paper

A freeform mirror profiler with a very wide dynamic range and a high precision

Masahito Uchiyama, Taiki Bessho, Hitoshi Tokoro, Mori Megumi, Yuji Ikeda

Proceedings Volume 13100, 131004E (2024) https://doi.org/10.1117/12.3019442

KEYWORDS: Computer generated holography, Interferometers, Fizeau interferometers, Mirrors, Optical surfaces, Reflection, Mirror surfaces, Cameras, Beam splitters, Freeform optics, Metrology, Laser optics, 3D profilers

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Paper

Development of flat fielding method in MIR for accurate photometry with TAO/MIMIZUKU

Tsubasa Michifuji, Takafumi Kamizuka, Takashi Miyata, Shigeyuki Sako, Ryou Ohsawa, Kentaro Asano, Masahito Uchiyama, Tomohiro Mori, Yutaka Yoshida, Kengo Tachibana, Mizuho Uchiyama

Proceedings Volume 11447, 114479M (2020) https://doi.org/10.1117/12.2561298

KEYWORDS: Photometry, Mid-IR, Imaging systems, Telescopes, Data analysis, Sensors, Error analysis

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Paper

The University of Tokyo Atacama Observatory 6.5m telescope: On-sky performance evaluations of the mid-infrared instrument MIMIZUKU on the Subaru telescope

Takafumi Kamizuka, Takashi Miyata, Shigeyuki Sako, Ryou Ohsawa, Kentaro Asano, Masahito Uchiyama, Tomohiro Mori, Yutaka Yoshida, Kengo Tachibana, Tsubasa Michifuji, Mizuho Uchiyama, Itsuki Sakon, Takashi Onaka, Hirokazu Kataza, Tsutomu Aoki, Mamoru Doi, Bunyo Hatsukade, Natsuko Kato, Kotaro Kohno, Masahiro Konishi, Takeo Minezaki, Tomoki Morokuma, Mizuki Numata, Kentaro Motohara, Hiroaki Sameshima, Takao Soyano, Hidenori Takahashi, Toshihiko Tanabé, Masuo Tanaka, Ken'ichi Tarusawa, Shintaro Koshida, Yoichi Tamura, Yasunori Terao, Kosuke Kushibiki, Hiroki Nakamura, Yuzuru Yoshii

Proceedings Volume 11447, 114475X (2020) https://doi.org/10.1117/12.2560789

KEYWORDS: Telescopes, Mid-IR, Observatories, Imaging spectroscopy, Spectroscopy, Spectroscopes, Imaging systems, Calibration, Spectroscopic atmospheric monitoring techniques, Absorption

Read Abstract +

Proceedings Article | 6 July 2018 Paper

Performance of the reflective optics of MIMIZUKU at cryogenic temperature

Tomohiro Mori, Takashi Miyata, Takafumi Kamizuka, Ryou Ohsawa, Shigeyuki Sako, Masahito Uchiyama, Jumpei Yamaguchi, Yutaka Yoshida

Proceedings Volume 10702, 107022N (2018) https://doi.org/10.1117/12.2312772

KEYWORDS: Image quality, Point spread functions, Cryogenics, Distortion, Mid-IR, Mirrors, Reflectivity, Zemax, Near infrared, Sensors

Read Abstract +

Proceedings Article | 6 July 2018 Paper

Laboratory performance evaluation of the mid-infrared camera and spectrograph MIMIZUKU for the TAO 6.5-m telescope

Takafumi Kamizuka, Masahito Uchiyama, Jumpei Yamaguchi, Tomohiro Mori, Ryou Ohsawa, Yutaka Yoshida, Shigeyuki Sako, Takashi Miyata, Kentaro Asano, Mizuho Uchiyama, Itsuki Sakon, Takashi Onaka, Hirokazu Kataza, Tsutomu Aoki, Mamoru Doi, Bunyo Hatsukade, Natsuko Kato, Kotaro Kohno, Masahiro Konishi, Takeo Minezaki, Tomoki Morokuma, Kentaro Motohara, Takao Soyano, Hidenori Takahashi, Toshihiko Tanabe, Masuo Tanaka, Ken'ichi Tarusawa, Yoichi Tamura, Shintaro Koshida, Yasunori Terao, Hirofumi Ohashi, Yukihiro Kono, Kosuke Kushibiki, Yuzuru Yoshii

Proceedings Volume 10702, 107022H (2018) https://doi.org/10.1117/12.2312443

KEYWORDS: Sensors, Mid-IR, Astronomy, Cameras, Spectrographs, Quantum efficiency, Spectroscopy

Read Abstract +

Proceedings Article | 6 July 2018 Paper

Photometric error in mid-infrared observations at the TAO site caused by short-term variation of atmospheric water vapor

Masahito Uchiyama, Takashi Miyata, Ryou Ohsawa, Takafumi Kamizuka, Shigeyuki Sako, Jumpei Yamaguchi, Tomohiro Mori, Yutaka Yoshida

Proceedings Volume 10702, 107022B (2018) https://doi.org/10.1117/12.2311778

KEYWORDS: Mid-IR, Transmittance, Telescopes, Astronomy, Photometry, Signal to noise ratio, Error analysis

Read Abstract +

Proceedings Article | 6 July 2018 Paper

Development status of the simultaneous two-color near-infrared multi-object spectrograph SWIMS for the TAO 6.5m telescope

Masahiro Konishi, Kentaro Motohara, Hidenori Takahashi, Natsuko Kato, Yasunori Terao, Hirofumi Ohashi, Yukihiro Kono, Kosuke Kushibiki, Tadayuki Kodama, Masao Hayashi, Ichi Tanaka, Ken-ichi Tadaki, Jun Toshikawa, Yusei Koyama, Rhythm Shimakawa, Tomoko Suzuki, Ken Tateuchi, Yutaro Kitagawa, Yutaka Kobayakawa, Soya Todo, Tsutomu Aoki, Mamoru Doi, Bunyo Hatsukade, Takafumi Kamizuka, Kotaro Kohno, Takeo Minezaki, Takashi Miyata, Tomoki Morokuma , Shigeyuki Sako, Takao Soyano, Toshihiko Tanabé, Masuo Tanaka, Ken'ichi Tarusawa, Yoichi Tamura, Shintaro Koshida, Ryou Ohsawa, Masahito Uchiyama, Tomohiro Mori, Jumpei Yamaguchi, Yutaka Yoshida, Yuzuru Yoshii

Proceedings Volume 10702, 1070226 (2018) https://doi.org/10.1117/12.2310060

KEYWORDS: Telescopes, Sensors, Astronomical imaging, Observatories, Spectrographs, Astronomy, Spectroscopy, Infrared telescopes, Spectroscopes, Infrared radiation

Read Abstract +

Proceedings Article | 9 August 2016 Paper

Development status of the mid-infrared two-field camera and spectrograph MIMIZUKU for the TAO 6.5-m Telescope

Takafumi Kamizuka, Takashi Miyata, Shigeyuki Sako, Ryou Ohsawa, Kazushi Okada, Masahito Uchiyama, Kiyoshi Mori, Jumpei Yamaguchi, Kentaro Asano, Mizuho Uchiyama, Itsuki Sakon, Takashi Onaka, Hirokazu Kataza, Sunao Hasegawa, Fumihiko Usui, Naruhisa Takato, Tsutomu Aoki, Mamoru Doi, Natsuko Kato, Yutaro Kitagawa, Yutaka Kobayakawa, Kotaro Kohno, Masahiro Konishi, Takeo Minezaki, Tomoki Morokuma, Kentaro Motohara, Hirofumi Ohashi, Takao Soyano, Hidenori Takahashi, Yoichi Tamura, Toshihiko Tanabé, Masuo Tanaka, Ken'ichi Tarusawa, Yasunori Terao, Yuzuru Yoshii

Proceedings Volume 9908, 99083W (2016) https://doi.org/10.1117/12.2231565

KEYWORDS: Sensors, Mid-IR, Telescopes, Cryogenics, Near infrared, Mirrors, Spectroscopy, Space telescopes, Calibration, Point spread functions

Read Abstract +

Proceedings Article | 9 August 2016 Paper

NIR camera and spectrograph SWIMS for TAO 6.5m telescope: overview and development status

Kentaro Motohara, Masahiro Konishi, Hidenori Takahashi, Natsuko Kato, Yutaro Kitagawa, Yutaka Kobayakawa, Yasunori Terao, Hirofumi Ohashi, Tsutomu Aoki, Mamoru Doi, Takafumi Kamizuka, Kotaro Kohno, Takeo Minezaki, Takashi Miyata, Tomoki Morokuma, Kiyoshi Mori, Ryou Ohsawa, Kazushi Okada, Shigeyuki Sako, Takao Soyano, Yoichi Tamura, Toshihiko Tanabe, Masuo Tanaka, Ken'ichi Tarusawa, Masahito Uchiyama, Shintaro Koshida, Kentaro Asano, Ken Tateuchi, Mizhuo Uchiyama, Soya Todo, Yuzuru Yoshii

Proceedings Volume 9908, 99083U (2016) https://doi.org/10.1117/12.2231386

KEYWORDS: Telescopes, Near infrared, Astronomical imaging, Spectrographs, Infrared telescopes, Cameras, Sensors, Space telescopes, Observatories, Collimators

Read Abstract +

Proceedings Article | 29 July 2016 Paper

Array controller system with cryogenic pre-amplifiers for MIMIZUKU

K. Okada, S. Sako, T. Miyata, T. Kamizuka, R. Ohsawa, M. Uchiyama, K. Mori, J. Yamaguchi, K. Asano

Proceedings Volume 9915, 991527 (2016) https://doi.org/10.1117/12.2232532

KEYWORDS: Control systems, Cryogenics, Gallium arsenide, Field effect transistors, Amplifiers, Capacitance, Staring arrays, Silicon, Optical amplifiers, Readout integrated circuits

Read Abstract +

Proceedings Article | 22 July 2016 Paper

Development of superconducting voice coil motor of a cold chopper for MICHI

Kiyoshi Mori, Takashi Miyata, Mitsuhiko Honda, Takafumi Kamizuka, Hidenori Takahashi, Shigeyuki Sako, Ryou Ohsawa, Kazushi Okada, Masahito Uchiyama, Hirokazu Kataza, Hiroyuki Ohsaki, Takashi Hiroe, Chris Packham

Proceedings Volume 9912, 991218 (2016) https://doi.org/10.1117/12.2231889

KEYWORDS: Superconductors, Magnetism, Mid-IR, Mirrors, Telescopes, Actuators, Temperature metrology, Cryogenics, Prototyping, Astronomy

Read Abstract +

Proceedings Article | 22 July 2016 Paper

Development of an optical device (Field Stacker) for achieving accurate photometry in ground-based mid-infrared observations

Masahito Uchiyama, Takashi Miyata, Takafumi Kamizuka, Shigeyuki Sako, Ryou Ohsawa, Kazushi Okada, Kiyoshi Mori, Jumpei Yamaguchi, Kentaro Asano, Mizuho Uchiyama

Proceedings Volume 9912, 99125N (2016) https://doi.org/10.1117/12.2231283

KEYWORDS: Infrared radiation, Mid-IR, Transmittance, Mirrors, Telescopes, Optical components, Photometry, Stars, Astronomy, Space telescopes

Read Abstract +

Proceedings Article | 28 July 2014 Paper

Development of high-throughput silicon lens and grism with moth-eye anti-reflection structure

Takafumi Kamizuka, Takashi Miyata, Shigeyuki Sako, Hiroaki Imada, Ryou Ohsawa, Kentaro Asano, Mizuho Uchiyama, Kazushi Okada, Masahito Uchiyama, Takehiko Wada, Takao Nakagawa, Tomohiko Nakamura, Itsuki Sakon, Takashi Onaka

Proceedings Volume 9151, 91515G (2014) https://doi.org/10.1117/12.2055756

KEYWORDS: Antireflective coatings, Silicon, Coating, Transmittance, Mid-IR, Signal detection, Imaging systems, Astronomy, Cryogenics, Lithography

Read Abstract +

Proceedings Article | 8 July 2014 Paper

Revised specifications and current development status of MIMIZUKU: the mid-infrared instrument for the TAO 6.5-m telescope

Takafumi Kamizuka, Takashi Miyata, Shigeyuki Sako, Ryou Ohsawa, Kentaro Asano, Mizuho Uchiyama, Kazushi Okada, Masahito Uchiyama, Tomohiko Nakamura, Itsuki Sakon, Takashi Onaka, Hirokazu Kataza, Tsutomu Aoki, Mamoru Doi, Natsuko Kato, Kimiaki Kawara, Yutaro Kitagawa, Kotaro Kohno, Masahiro Konishi, Shintaro Koshida, Takeo Minezaki, Tomoki Morokuma, Kentaro Motohara, Takao Soyano, Hidenori Takahashi, Yoichi Tamura, Toshihiko Tanabé, Masuo Tanaka, Ken'ichi Tarusawa, Ken Tateuchi, Soya Todo, Yuzuru Yoshii

Proceedings Volume 9147, 91473C (2014) https://doi.org/10.1117/12.2056184

KEYWORDS: Telescopes, Cameras, Mid-IR, Sensors, Mirrors, Near infrared, Spectroscopy, Space telescopes, Stars, Calibration

Read Abstract +

Showing 5 of 14 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years