Space / Astronomy

Ultra-high-precise processing technology which supports astronomical observation.

01｜Optical　Satellite

Manufactured polished large-diameter optical mirrors on board the Advanced Optical Satellite (ALOS-3), also measured the length between optical mirrors, and adjustment of alignment.

Crystal Optics machined and polished roughly Clearceram in advance of finishing Large Diameter Mirror mounted on ALOS-3 called DAICHI-3 and measured the distance between mirrors and adjusted alignment by one of the biggest CMM in the world, which has measuring range X 3.000- Y 6.000- Z 2.000mm.

Glass rib structure to reduce weight.
Shape accuracy PV0.21um
Measuring instrument Zygo Verifire ATZ
Source: JAXA (Japan Aerospace Exploration Agency) Satellite Navigator Engineered Satellite Project Advanced Optical Satellite (ALOS-3)
https://www.satnavi.jaxa.jp/ja/project/alos-3/index.html

02｜Thirty Meter Telescope TMT (Thirty-meter aperture huge telescope)

Prototype processing of next-generation large image slicer unit for mid-infrared observation device MICH.
(Co-developed with Assistant Professor Itsuki Sakon, Astronomy, School of science, The University of Tokyo) Image provided by: The University of Tokyo

Manufactured an optical system that converts 2D spatial information into 1D.
Possible to effectively obtain the spectrum of each location in a 2D image of the dust cloud that is periodically created and scattered during the final stage of the massive star WR140.
Spectra for each location in a 2D image can be effectively acquired

Guaranteed the accurate position of each mirror of multiple mirrors with mechanical accuracy by one-chucking processing and ensured the relative position accuracy of multiple off-axis aspherical surfaces.

03｜Tokyo Atacama Observatory Project (TAO)

Manufactured vary shaped mirrors for mid-infrared imaging spectroscopic camera MIMIZUKU
(Co-developed with Professor Takashi Miyata, Astronomy Education and Research Center, University of Tokyo) Image provided by: TAO Project, The University of Tokyo

Manufactured vary shaped mirrors like flat, free form, and aspheric, assembled 50 mirrors on the observation device which was mounted on the infrared telescope for Tokyo Atacama Observatory, measuring the optical path and each mirror’s position by CMM at the same time, collaborating with The University of Tokyo.