Company Filing History:
16 out of 114 
1 out of 1,770 
1 out of 1,851 
Years Active: 1984-1994
Title: Harold E. Sweeney: Innovator in Optical Detection Technologies
Introduction
Harold E. Sweeney is a notable inventor based in Menlo Park, California, recognized for his contributions to optical detection technologies. With a total of 18 patents to his name, Sweeney has made significant advancements in methods for detecting oil slicks and identifying spectrally pure optical radiation.
Latest Patents
One of Sweeney's latest patents is a technique for the remote detection of sea slicks. This innovative method utilizes a combination of two or more ultraviolet lasers to detect oil slicks at or near the water's surface. By comparing the relative magnitudes of the received Raman backscattering signals, the existence of an oil slick can be determined. The use of two different laser frequencies helps eliminate atmospheric transmission variations and wave modulation, enhancing detection accuracy.
Another significant patent involves an apparatus and method for identifying spectrally pure optical radiation (SPOR). This invention distinguishes SPOR, such as laser radiation, from broadband optical radiation, referred to as radiation of unknown spectral purity (RUSP). The apparatus includes an etalon that determines the balance or unbalance between the reflected and transmitted portions of a signal incident on it. An unbalance indicates the presence of SPOR, while equality suggests spectrally impure radiation. The method also involves measuring the sum of the intensities of the reflected and transmitted radiation to estimate the angle of incidence of RUSP on the etalon.
Career Highlights
Throughout his career, Harold E. Sweeney has worked with prominent companies, including GTE Government Systems Corporation and GTE Products Corporation. His work in these organizations has contributed to the development of advanced technologies in optical detection.
Collaborations
Sweeney has collaborated with notable individuals in his field, including Donald A. Leonard and Paul J. Titterton. These collaborations have likely enriched his work and led to further innovations in optical technologies.
Conclusion
Harold E. Sweeney's contributions to the field of optical detection are significant and impactful. His innovative patents demonstrate a commitment to advancing technology for environmental monitoring and optical radiation identification.