Light emitting diode array print head having no bonding wire connections
US4916464A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1989 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | May 4, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/45
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An LED array print head for an electrophotographic printer includes: LED array device packages each being loaded with an array of LEDs individually connected to a first major surface of the LED package by first solder joints; LED driver packages each loaded with a driver circuit connected to a first major surface of the driver package by second solder joints; and an optically transparent insulative substrate with a first major surface carrying conductive leads adapted to electrically connect the LEDs and driver circuits. The LED and driver packages are mounted on the substrate in such an orientation that the first major surfaces of the packages face the first major surface of the substrate and the first and second solder joints are connected to the conductive leads of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.