| Patent Number |
Title Of Patent |
Date Issued |
| 6353455 |
Method of evaluating characteristics of a light beam, apparatus for evaluating the characteristi |
March 5, 2002 |
| At least two light beam detection units are spaced at a predetermined distance and provided in the scanning direction of a surface to be scanned. A light beam is emitted to the light beam detection unit provided on a scanning start side, by lighting a light beam source which is emplo |
| 6275249 |
Method of evaluating characteristics of a light beam, apparatus for evaluating the characteristi |
August 14, 2001 |
| At least two light beam detection units are spaced at a predetermined distance and provided in the scanning direction of a surface to be scanned. A light beam is emitted to the light beam detection unit provided on a scanning start side, by lighting a light beam source which is emplo |
| 6268876 |
Method of evaluating characteristics of a light beam apparatus for evaluating the characteristic |
July 31, 2001 |
| At least two light beam detection units are spaced at a predetermined distance and provided in the scanning direction of a surface to be scanned. A light beam is emitted to the light beam detection unit provided on a scanning start side, by lighting a light beam source which is emplo |
| 6243124 |
Method of evaluating characteristics of a light beam, apparatus for evaluating the characteristi |
June 5, 2001 |
| At least two light beam detection units are spaced at a predetermined distance and provided in the scanning direction of a surface to be scanned. A light beam is emitted to the light beam detection unit provided on a scanning start side, by lighting a light beam source which is emplo |
