J Evan Grund

Title: Innovations of J Evan Grund

Introduction

J Evan Grund is a notable inventor based in San Jose, California. He has made significant contributions to the field of technology, particularly in power control systems and optical focusing methods. With a total of three patents to his name, Grund's work showcases his innovative spirit and technical expertise.

Latest Patents

One of Grund's latest patents is a power controller for heater load. This power control system is designed for heat lamps used in drying a continuous web of paper, ensuring a linear moisture profile. The system minimizes wiring by locating the actuating thyristor type switch at each zone where the heater lamps are situated. It achieves parameters of minimum flicker for unity power factor and high-resolution power control by utilizing timing signals from the zero crossings of the three-phase AC line voltage input. Additionally, it allows for rapid scanning through scratch pad memory tables, enhancing computing efficiency.

Another significant patent is a method and apparatus for automatic optical focusing. This invention provides a solution for the fine focusing of image scanning densitometers, micrometers, or television cameras after an initial manual focus. By conducting multiple scans across the image of a feature at various focus positions, the system determines the best focus position through a second-order curve analysis. This innovative approach ensures precise adjustments for optimal focus.

Career Highlights

Throughout his career, J Evan Grund has worked with several companies, including Nanometrics Inc. and Impact Systems, Inc. His experience in these organizations has contributed to his development as an inventor and has allowed him to apply his innovative ideas in practical settings.

Collaborations

Grund has collaborated with notable individuals in the field, including Vincent J Coates and Stephen B Westrate. These partnerships have likely fostered an environment of creativity and innovation, further enhancing his contributions to technology.

Conclusion

J Evan Grund's work exemplifies the spirit of innovation through his patents and collaborations. His contributions to power control systems and optical focusing methods highlight his expertise and commitment to advancing technology. His achievements serve as an inspiration for future inventors in the field.