Claims
- 1. A machining guide lying on a surface of a prism, the surface having a first edge which is to be machined from its initial location to at least approximately coincide with a location related to a plurality of sensing line segments, said guide comprising:
- a bottom conductive area on the surface lying between the first edge's initial location and extending to at least across the sensing line segments;
- an insulating barrier area lying along a staircase pattern edge including at least first and second sensing line segments offset with respect to each other and parallel to the first edge and whose extensions are a predetermined distance from the each other, the insulating barrier area extending from each of the sensing line segments away from the initial location of the first edge;
- a connector pad disposed on the insulating barrier area; and
- a plurality of legs, each leg having appreciable resistance along its length and electrically connected at a first end to the pad, at least one of the legs extending across each sensing line segment between its end points and making electrical contact with the conducting area between each sensing line segments and the first edge.
Parent Case Info
This is a divisional application under 37 CFR 1.60, of pending prior application Ser. No. 06/430,193 filed on Sept. 30, 1982 now U.S. Pat. No. 4,477,968, 10/23/84.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3821815 |
Abbott et al. |
Jun 1974 |
|
4014141 |
Riddle et al. |
Mar 1977 |
|
4511942 |
Valstyn |
Apr 1985 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
430193 |
Sep 1982 |
|