Made in the USA


- by GPI with PAI aspheric optics inside        


Gemini Planet Imager (GPI), the world's most powerful planet-hunting instrument, with critical optical components made by Precision Asphere, Inc. (PAI), shows off its first images in a press release on January 7, 2014.

PAI has played a part in making this mission possible by providing 7 Off-Axis-Aspheric mirrors along critical optical paths.

Leveraging its innovative state-of-the-art technologies for asphere fabrication, PAI specializes in delivering super-smooth (low mid-spatial frequencies) aspheric surfaces on fast mirrors with large aspheric departure. "The extraordinary performance of GPI validates one more of our success stories," says Dr. John Kong, founder and president of PAI.


Figure: Gemini Planet Imager’s first light image of Beta Pictoris b, a planet orbiting the star Beta Pictoris. The star, Beta Pictoris, is blocked in this image by a mask so its light doesn’t interfere with the light of the planet. (Photo Courtesy Gemini Observatory)


To illustrate the smoothness of these aspheric mirrors made by PAI, “each individual mirror inside GPI has to be smooth to within a few times the size of an atom”, says Leslie Saddlemyer of NRC Herzberg (part of the National Research Council of Canada), who served as GPI’s systems engineer.


For more details, see “Gemini Planet Imager First Light!”

For more products offering of PAI, see "WHAT WE DO"


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