Related Words

Glass: The support for back painting. It is important that it should be reasonably stout; plate glass is best, and it should be of a good quality so that there will be no distortions in the glass t . . . View Full Definition

Claude Glass: A small convex mirror that instead of being silvered was blackened at the back. The idea was that being convex it would reduce the scene and by being blackened it would only reflect the main . . . View Full Definition

Ground Glass Screen: Translucent glass sheet used for viewing and focusing the image on all large format and some reflex cameras.

Back Glass Painting: Painting pictures on the back of sheets of glass. With this manner the artist has to work his picture backwards, starting with what would be the finishing strokes with the conventional metho . . . View Full Definition

Glassiness: The content of extent of glass in an igneous rock.

Double Glass: Window or door in which two panes of glass are used with a sealed air space between. Also known as Insulating Glass.

Insulating Glass: Window or door in which two panes of glass are used with a sealed air space between. Also known as Double glass.

Crown Glass: Low dispersion optical glass.

Optical Glass: Is used for manufacturing lenses and prisms. It is specially manufactured to be free of defects and distortion, and to withstand heat and humidity. Each type f optical glass is classified ac . . . View Full Definition

Glass Arm: A sore throwing or pitching arm.