Apparatus for optically inspecting printer die motifs
US5022762A · kind A · utility
Inventors
Key dates
| Filing date | Jun 29, 1989 |
| Grant date | Jun 11, 1991 |
| Priority date | — |
| Expiry date | Jun 29, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B9/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for optically inspecting printer die motifs, with the inspection including measuring the length, width, and depth of motifs, and measuring the circumferential separation of two motifs when more than one motif is disposed on the same printer die, the apparatus includes microscope optics supported by a stand, a table for supporting a precision divider head upon which the printer die carrying the motif is mounted, with the table being movable in an "X" and "Y" direction in a plane perpendicular to the axis of the optical path issuing from the optics, the precision divider head for rotating the printer die motif through the optical path of the optics, a first digital micrometer to measure length of a motif, a second digital micrometer to measure the width of a motif, a dial indicator to measure the depth of a motif, and the rotational indicator to measure the circumferential separation of two motifs on the same printer die.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.