| Patent Number |
Title Of Patent |
Date Issued |
| 4707105 |
Apparatus for fixing exposure and focus in camera |
November 17, 1987 |
| A camera is provided with an operation member for fixing one of the exposure data and the focusing position or both the exposure data and the focusing position, and a selector member for selecting one of the operations of the operation member. |
| 4639604 |
Method and apparatus for detecting an edge position of a pattern and eliminating overlapping pat |
January 27, 1987 |
| Disclosed is a system for the signal processing of pattern profile information detected by optically or electronically scanning a pattern on an object such as a semiconductor wafer or a mask. The system includes a pattern information detector responsive to the scanning to generate an |
| 4571045 |
Light-intercepting blade for a light control device |
February 18, 1986 |
| A light control device includes a planar light-intercepting blade disposed across the optical path of an optical device and driving means for holding the light-intercepting blade and moving the light-intercepting blade in the direction of the surface thereof. The planar light-interceptin |
| 4474449 |
Automatic focusing device |
October 2, 1984 |
| An automatic focusing device is capable of providing stable operation in a range close to the in-focus position, without degrading resopnse outside the range. In the focusing device, a photographic lens is driven, outside a range close to the in-focus position, according to a focusing si |
