Method and device for controlling radiation

DETAILED DESCRIPTION OF THE INVENTION Referring now to FIGS.
1 through 4, which describe an embodiment of the device of this invention.
The lens device comprises a first transparent plate 1 and a second transparent plate 2 juxtaposed against the first transparent plate.
The plates may be constructed of any transparent material which will not interfere with viewing the picture on the television viewing surface of the television receiving apparatus 3.
Preferably the plates are constructed of a glass or a transparent polymer.
Preferably, the plates are both curved i.
e.
concave 4,5 on the surfaces that are in contact with each other to form a chamber 6 which contains the mineral oil, thereby maintaining a thin transparent mineral oil film 7 over the viewing surface of the television receiving apparatus.
However, this invention contemplates any shaped surfaces that are in contact with each other as long as the chamber formed maintains a thin transparent mineral oil film over the television receiving apparatus and does not distort the television picture.
The transparent plates are of a size to substantially cover the viewing surface of the television receiving apparatus which it is desired to place the device upon.
The plates can be of any thickness as long as the total thickness of both plates does not effect, i.
e.
distort, the television picture in an undesirable manner.
Optionally, the transparent plates may magnify or reduce the television picture.
The thickness of the transparent plate is dependent on the material from which it is constructed, however, it is preferable that each plate be about one-eighth inch thick transparent glass.
A preferred embodiment of this invention is designed to be used on a television receiving apparatus having a 10 inch by 10 inch television viewing surface.
The device is therefore constructed of 2 10 .
times.
10 .
times.
1/8 inch transparent glass plates.
However, this invention contemplates the use of any size transparent plates adapted to cover the viewing surface of the receiving apparatus