altarpiece is an artwork behind the alter in some churches.
an artwork behind the alter in some churches?
altarpiece
na
na
although protection is a primary purpose of glazing, "displaying" an artwork is the primary purpose of framing it. therefore, the least visible glazing best displays the artwork behind it. visible light transmission is the primary measure of glass' "invisibility", since the viewer actually sees the light, reflected from the artwork. light transmission of glass is especially important in art framing, since light passes through the glass twice – once to illuminate the artwork, and then again, reflected from the artwork, as colors - before reaching the viewer.
picture framing glass