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 Expert  718680

Expert in Retroreflect Spectroradiometry


Available for your Consulting and Expert Witness Needs

California (CA)
USA
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise:

Listed with other top experts in: 

COMMISSION INTERNATIONALE DE L'ECLAIRAGE (CIE) COLOR ANALYSIS; COLORIMETRY. Expert 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.

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color measurement

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colorimetry

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Commission Internationale de l'eclairage color analysis

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illumination measurement

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lighting process

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optical instrument

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photometer

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photometry

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radiant flux density

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reflectometry

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retroreflection

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spectrophotometer

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spectrophotometry

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spectroradiometry

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standard illuminant


Show Secondary and Basic Areas of Expertise
Localities:
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;  and Oceanside, California.

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

Work History:
Years   Employer   Title  

1998 to

 

(Undisclosed Consulting Company)

 

President

 

1995 to 1998

 

Art - A Part Of Gamma Scientific, Inc.

 

President

 

1982 to 1995

 

Advanced Retro Technology

 

President

 

1974 to 1982

 

Gamma Scientific

 

Vice President of Research & Engineering

 

1969 to 1974

 

California Institute of Technology

 

Senior Research Fellow

 

1961 to 1969

 

Jet Propulsion Laboratory

 

Technical Staff

 

1955 to 1960

 

Scripps Institute of Oceanography

 

Associate Engineer

 

Career Accomplishments:
Associations/Societies

Jay is a member of the American Institute of Physics, the Optical Society of America, the Society for Information Display, the Illuminating Engineering Society, the American Society for Testing and Materials, the USNC of the CIE, the Transportation Research Board, Sigma Xi, the Inter-Society Color Council, and the Institute of Transportation Engineers. Jay is past chairman of ASTM-E12 committee on appearance, past chair of a TRB committee, and serves on another. He was recently appointed chairman of two CIE Technical Committee and is a former member of the CORM Board of Directors.


Publications:

Consulting Services:
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Expert in ultraviolet sunlamp technology to measure relative radiation in product liability litigation.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Foreign Language  
German  

 

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