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US 2004/0169839 A1Published application
Device for observing the sun's backscattered image on a screen
OwnerJean Gayinventor
Life of this patent
Estimating the term…
Abstract
A device for the observation of passages on the sun of Venus and Mercury and more generally for observation of the solar disk by back projection of the solar image on a screen that also forms a sun screen for the protection of the eyes.
Claims8
Device for observation of the back-projected image of the sun on a screen (10), characterized in that said screen also provides protection from the ambient light.
Dependencies are inferred from the claim text.