Alan R Pearlman

Title: Alan R Pearlman: Innovator in Optoelectronics

Introduction

Alan R Pearlman is a notable inventor based in Newton Highlands, MA (US), recognized for his contributions to the field of optoelectronics. He holds a total of five patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on the development of optoisolators and isolation amplifiers, which have significant applications in various electronic systems.

Latest Patents

Among his latest patents is an optoisolator comprising walls having photosensitive inner surfaces. This invention includes one or more light-emitting diodes (LEDs) within a compartment defined by walls of photocells. The design ensures that the majority of light emitted by the LED impinges directly upon a photocell, converting it to electricity with minimal loss. The photocells are connected by abutting their ends, similar to a butt joint. In one embodiment, the LEDs are inserted into an opening in the compartment and secured with a light-transmissive, non-conductive material. In another embodiment, the LEDs and photocells are mounted to a substrate, with each photocell potentially having multiple electrically-independent photosensitive surfaces.

Another significant patent is a 2-wire optovoltaic loop-powered isolation amplifier with current. This isolation amplifier transmits data to a receiver via a current loop, with the isolated portion of the circuit powered by a photovoltaic array illuminated by a light source directly powered by the current loop. The design allows for additional illumination of the photovoltaic array by excess power tapped from the current loop. The light source is preferably an array of light-emitting diodes, and the photovoltaic array consists of photocells sensitive to the same wavelengths emitted by the LEDs.

Career Highlights

Throughout his career, Alan R Pearlman has worked with several companies, including Arp Instruments, Inc. and Mini Systems, Inc. His experience in these organizations has contributed to his development as an inventor and innovator in the field of electronics.

Collaborations

Some of his notable coworkers include Dennis P Colin and Timothy C Gillette, who have likely contributed to his projects and innovations.

Conclusion

Alan R Pearlman stands out as a significant figure in the realm of optoelectronics, with a strong portfolio of patents that reflect his innovative contributions. His work continues to influence the development of advanced electronic systems.