Expert Details

Expert in Retroreflect Spectroradiometry

Expert ID: 718680 California, USA

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COMMISSION INTERNATIONALE DE L'ECLAIRAGE (CIE) COLOR ANALYSIS; COLORIMETRY. Expert (prefers Jay) has had most of his career in optical physics involve measuring color as specified in the CIE System. He notes that the basis for this measurement is spectro-radiometry and weighting using the CIE System.

ILLUMINATION MEASUREMENT; LIGHTING PROCESS; IRRADIANCE. Most of Jay's career has been devoted to the measurement of spectral power distributions and the weighting of the distribution components to result in photometric units. He notes that irradiance is a form of this measurement, weighted by the CIE Spectral luminous efficiency function V(a function of lambda). Lighting process also falls in this category.

OPTICAL INSTRUMENT. Jay has worked with optical instruments which collect and measure optical radiation. He has designed numerous instruments for this purpose.

RETROREFLECTION; REFLECTOMETRY. A prime emphasis of Jay's career in recent years has been the field of retroreflection of materials used for traffic control and safety in the transportation field. He has headed and chaired many technical committees dealing with this subject. He has extensive international contacts in this area, which he considers a subset of reflectometry.

RETROREFLECTIVE TRAFFIC CONTROL DEVICE. Jay is Chairman of CIE Technical Committee on Retroreflection and requirements of retroreflective traffic signs. He has designed instruments for this purpose and understands visibility aspects of traffic control devices such as conspicuity. He is a prior manufacturer of instruments for measurements of the traffic control devices and serves as an advisor to FHWA. As ASTM chairman of standards for retroreflection, Jay has extensive knowledge of national and international standards in this area.

SPECTRORADIOMETRY; SPECTROPHOTOMETRY. Over 30 years of Jay's career has been in the development of instrumentation and the analysis of data involving the measurement of the spectral power distribution of materials and light sources. Jay notes that while the general name for this field is spectroradiometry, he is also fully familiar with the area of spectrophotometry. Jay also has extensive experience in the areas of remote television sensing of photometry and colorimetry of the moon and planets. He has performed analysis on lunar samples and returned spacecraft parts.

PHOTOMETRY; ILLUMINATION; LIGHT CONTROL; LIGHTING DEVICE; LIGHTING SYSTEM; PROCESS. Jay's entire career has been devoted to this field, with widely varying applications.

Expert may consult nationally and internationally, and is also local to the following cities: San Diego, California - Long Beach, California - Santa Ana, California - Anaheim, California - Riverside, California - Huntington Beach, California - San Bernardino, California - Chula Vista, California - Garden Grove, California - Oceanside, California

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Year Degree Subject Institution
Year: 1955 Degree: Subject: Optical Physics Institution: Technical University, Berlin
Year: 1950 Degree: BA Subject: Astronomy Institution: University of California

Work History

Years Employer Title Department Responsibilities
Years: 1998 to Present Employer: Undisclosed Title: President Department: Responsibilities:
Years: 1995 to 1998 Employer: Art - A Part Of Gamma Scientific, Inc. Title: President Department: Responsibilities:
Years: 1982 to 1995 Employer: Advanced Retro Technology Title: President Department: Responsibilities:
Years: 1974 to 1982 Employer: Gamma Scientific Title: Vice President of Research & Engineering Department: Responsibilities:
Years: 1969 to 1974 Employer: California Institute of Technology Title: Senior Research Fellow Department: Responsibilities:
Years: 1961 to 1969 Employer: Jet Propulsion Laboratory Title: Technical Staff Department: Responsibilities:
Years: 1955 to 1960 Employer: Scripps Institute of Oceanography Title: Associate Engineer Department: Responsibilities:

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