Jeff L McClelland

Title: Jeff L McClelland: Innovator in Infrared Imaging Technology

Introduction

Jeff L McClelland is a notable inventor based in Somerville, MA (US), recognized for his contributions to infrared imaging technology. He holds three patents that showcase his innovative approach to enhancing the performance of pyroelectric detectors in imaging systems.

Latest Patents

One of his latest patents is a gate coupled input circuit, which discloses a preamplifier used with each pyroelectric detector in an infrared imaging array system. This preamplifier is designed to utilize solid-state manufacturing techniques to construct each preamplifier and its associated detector in a dense detector array. The biasing of the preamplifier is achieved either by doping the material from which the detector is made to provide a high bias impedance or by using a MOSFET bias switch that is periodically operated to maintain the charge on the gate of the preamplifier transistor. When the bias switch is inactive, the associated detector detects, and readings are taken from each detector in the array.

Another significant patent also pertains to a gate coupled input circuit, where the preamplifier transistor is a MOSFET that can operate with zero volts between its source and gate terminals. The preamplifier is biased by a nonconducting diode that provides high biasing impedance while keeping the diode below its conduction voltage. Alternatively, an NPN transistor switch is periodically operated to maintain the charge on the gate of the preamplifier transistor. This innovation allows for consistent manufacturing of NPN transistor switches, with adjustable conduction levels to balance the gain of all preamplifiers in the detector array.

Career Highlights

Jeff L McClelland is currently employed at Honeywell GmbH, where he continues to develop cutting-edge technologies in the field of infrared imaging. His work has significantly advanced the capabilities of imaging systems, making them more efficient and effective.

Collaborations

Throughout his career, Jeff has collaborated with notable colleagues, including Neal R Butler and Shigesato Iwasa. These collaborations have contributed to the successful development of his innovative technologies.

Conclusion

Jeff L McClelland's work in infrared imaging technology exemplifies the impact of innovation in enhancing detection systems. His patents reflect a commitment to advancing technology and improving the functionality of imaging arrays.