New achromatic telescope

The Rainbow and the Achromatic Telescope: Two Case Studies

A new multi-detector telescope calibration method

A new calibration method, applicable to multidetector telescopes, is presented. This method is based on the comparison between experimental data and the ones obtained from Monte-Carlo simulation. The method just needs a accurate knowledgment of the detector spectrum. To test the method, data obtained in GANIL accelerator, are used. Obtained results are presented and the method accuracy is concl...

LOFAR, a new low frequency radio telescope

LOFAR, the Low Frequency Array, is a large radio telescope consisting of approximately 100 soccer-field sized antenna stations spread over a region of 400 km in diameter. It will operate at frequencies from ∼ 10 to 240 MHz, with a resolution at 240 MHz of better than an arcsecond. Its superb sensitivity will allow for studies of a broad range of astrophysical topics, including reionisation, tra...

Automated achromatic perimetry

Visual field (VF) testing is an important diagnostic tool for Glaucoma. The current gold standard for VF testing is automated perimetry. This article is an attempt to familiarize the reader with components of an achromatic (white on white) automated perimetry printout. It addresses use of Humphrey perimeter to interpret the results. For the purpose of this review, a PubMed search was made using...

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