Lamp-shade.
A screen placed above the light to intercept or mellow it. It may have a dark exterior and reflecting interior surface.
In the list below are some comparisons of transparent and partially opaque materials.
Loss of Light by Use of Shades and Colored Media. (
F. H. Storer and Allan Stevenson.)
| Thickness. | Loss. |
| Glass, etc. | Inches. | Per cent. |
| American enameled | 1/16 | 51.23 |
| Crown | 1/8 | 13.08 |
| Crystal plate | 1/8 | 8.61 |
| English plate | 1/3 | 6.15 |
| Porcelain transparency | 1/16 | 97.68 |
| Parisian pink tinge | | 57 |
| Deep red | | 80 |
| Window-glass | 1/16 | 4.27 |
| Window-glass (green) | 1/16 | 81.95 |
| Window-glass (ground) | 1/16 | 65.75 |
The shade is usually supported from the lampstem or around the base of the burner by means of a three-branched frame known as a
shade-holder.
