Method of grounding a photoblank to a holding device
US6972832B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Dec 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2237/3175
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A retaining device for photo blanks, comprising a retaining member (1) with a supporting surface (3) for a photo blank (4) and a ground element (10) which can be brought into contact with an electroconductive layer (6) of said photo blank. The ground element is provided with a contact tip (15) which can be manipulated in such a way that it can be lowered substantially onto the photo blank (4) without any lateral movement in relation to said photo blank which is inserted into the retaining device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.