If the work is to be effected at a south window into which the sun is shining, the requisite uniformity of illumination is obtained by placing a sheet of ground glass within a few inches of the negative.
The small lens in the upper left-hand corner serves to throw the picture on a piece of ground glass on the top of the Camera, thus showing the position of the image on the plate.
The letters were painted on ground glass, lighted behind, so that when the screens were withdrawn the letters were seen in transparency.
The screen of ground glass has a black back, and is placed in the focus of a lens in an ordinary camera obscura, wherein the image may be seen by looking down upon it.
On the whole, perhaps the best form is that in which a miniature view falls on a ground glass.
In a dark-room a light must be placed behind the pinhole, and a bit of ground glass held in front of the lens.
In hot summer sunshine it is as well to cover the green glass with a sheet of tissue paper or fine-ground glass.
Paper Marked with Design for Imitation of Ground Glass.
Folded Paper with Diamond Pattern for Imitation of Ground Glass.
For bath-rooms, or where the window is rather out of the way and the outlook not agreeable, the imitation of ground glass is suitable and useful.
When all the panes of glass are covered with tissue-paper, finish by varnishing each one with the white lac-varnish; at a little distance it is difficult to distinguish a window so covered from one really formed of ground glass.
The apparatus required is very simple, consisting of a large double convex lens, and a screen of ground glass.
This arrangement is an important modification of the other, and consists of a screen of ground glass (A B, Fig.
The best effect is obtained when the light of the spark is somewhat diffused by being passed (for example) through a piece of ground glass.
Preferable to an opaque screen is a piece of ground glass, which allows the shadow to be examined from the farther side (Lord Rayleigh).
An instrument with two lenses, by which an image of a single picture projected upon a screen of ground glass is made to present an appearance of relief, and may be viewed by several persons at once.
Globes of ground glass or other medium which causes diffusion of light.
The most noticeable of these is the mirror screen, which is a mirror of ground glass.
The scattering of light by diffuse reflection, as from an irregular surface such as ground glass.
If ground glass is used, the rough side must be at the bottom; otherwise it will be difficult to clean off the cement which adheres to the glass.
Cover one side of a clear glass and after drying it will produce a perfect surface for use as a ground glass in cameras.
The camera obscura consisted of a box with a lens at one end and a ground glass at the other, just like a modern camera.
A pencil point is secured to moving cross-head and marks position of target on ground glass, tracing movement of same thereon.
Wedgwood tried to make pictures by substituting his prepared paper for the ground glass, but the paper was too insensitive to obtain any result.
The chart is drawn on the lower and ground side of a ground glass plate.
Ground glass, glass the transparency of which has been destroyed by having its surface roughened by grinding.
The resultant of these two movements imparts to the reflected beam of light a motion similar to that of the pencil of the ordinary indicator, and this can be traced on the sheet of ground glass, or photographed.
Transparent slate, a plate of translucent material, as ground glass, upon which a copy of a picture, placed beneath it, can be made by tracing.
Defn: An instrument with two lenses, by which an image of a single picture projected upon a screen of ground glass is made to present an appearance of relief, and may be viewed by several persons at once.
After making the first exposure the correct focus for the second is obtained by moving the subject backward or forward until an exact focus is secured, and not by moving the camera or ground glass.
Pose the model in the centre, stop down till properly lighted, and note the stop and mark edges of view on ground glass.
A ring under the iris diaphragm serves to hold a ground glassor colored disc.
A ring below the iris-diaphragm serves to hold a ground glass or colored disc.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "ground glass" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
