Image intensifier with indexed compliant anode assembly
US9734977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Oct 14, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An image intensifier and a method of fabrication are disclosed. The image intensifier contains a photocathode assembly (120) including a vacuum window to generate photoelectrons in response to light, a vacuum package (110) and an anode assembly (130) to receive the photoelectrons. The anode assembly is mounted to the vacuum package via a compliant, springy, support structure (160). The anode additionally includes one or more insulating spacers (140) on the surface facing the photocathode so as to precisely index the position of the anode assembly with respect to the photocathode surface. The photocathode and vacuum window assembly is pressed into the vacuum package to generate a sealed leak tight vacuum envelope. During the photocathode assembly to vacuum package assembly pressing operation, the inner surface of the photocathode assembly contacts the insulating spacer/spacers of the anode assembly, thereby compressing the compliant support structure. This structure and assembly method result in a precisely indexed photocathode to anode assembly sealed image intensifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.