Year: 2014

Largest Corrector Lens C1

To the left is a photograph of our largest corrector lens, C1, measuring 1.15m in diameter.  The homogeneity of the fused silca glass came in at an astounding 1ppm (exceeding our 3ppm spec.).  C1 and C4 are about to be

C2 and C3 glass blanks finished

Ohara Corp in Japan has informed us that they have finished manufacturing the C2 and C3 blanks and are finalizing them for shipment.  Arizona Optical Systems (AOS) has been awarded the glass polishing contract for these two lenses and their

DESI awarded $1.1M from the Heising-Simons Foundation

We are pleased to announce that the Heising-Simons foundation has awarded $1.15M to the DESI Project.  The purpose of the award will be to fabricate the long-lead optics of the corrector (C1 and C4).  We expect to receive the funds

DESI’s Concept and Budget Range Approved

9-11 September 2014:  “Last week, the Dark Energy Spectroscopic Instrument project, DESI, passed a critical early review known as CD-1.  For the review, the Department of Energy’s Office of Project Assessment brought in a panel of 14 experts to review

Natalie Roe Testifies Before Congress on Particle Physics’ Future

10 June 2014:  “On June 10th in Washington D.C. Natalie Roe, Director of the Physics Division at Berkeley Lab, testified at a congressional subcommittee hearing on the future of particle physics, prompted by the recent release of the Particle Physics

DESI Collaboration Meeting held at LBNL

28-30 May 2014:  “DESI — the Dark Energy Spectroscopic Instrument — is slated to provide the most comprehensive picture of the universe to date, bringing into focus the 3-D location of as many as 25 million galaxies and quasars.  The

Scientists to map universe in 3-D HD

5 May 2014:  “The Dark Energy Spectroscopic Instrument will create the clearest three-dimensional map yet of one-third of the sky…” (Symmetry, May 5, 2014)

DESI Kitt Peak Integration Visit in April

23-25 April 2014: Sixteen people from five DESI collaborating institutions converged on Kitt Peak to discuss integration issues with NOAO staff. Here Robin Lafever inspects the telescope polar axis bearing area for equipment that might interfere with the planned fiber

DESI focal plate demonstrator

24 April 2014:  A first look at the DESI focal plate demonstrator during machining at ADS (by the Spain Participation Group and LBNL collaboration).

DESI Spectrograph Camera Preliminary Design Review

17 April 2014:  Robert Besuner inspects the triplet bonding during the Preliminary Design Review for the spectrograph prototypes at Winlight.

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