helioscope

listen to the pronunciation of helioscope
İngilizce - Türkçe
İngilizce - İngilizce
An apparatus for viewing the sun without injuring the eye
A telescope or instrument for viewing the sun without injury to the eyes, as through colored glasses, or with mirrors which reflect but a small portion of light
{i} telescope for viewing the sun accommodated to protect the viewer's eye of the sun's blinding light