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Donald R. Lehmbeck, adjunct faculty Photographic and Imaging Sensitometry School of Photographic Arts and Sciences College of Imaging Arts and Sciences / RIT 70 Lomb Memorial Drive Rochester, NY 14623 office: Building 07B-2187 phone: (585) 377-
2637?(home-office phone)
fax: (585) 475-7750 email: drlpph@rit.edu or donlehmbeck@aol.com |
Areas of specialty: |
Imaging sciences engineering and technology with emphasis on imaging quality technologies. The focus here is on sensitometry, tonal rendition and elementary imaging quality of traditional and digital photography systems. Related areas include photometry, digital scanning, printing, image processing, systems engineering, reprographics including halftones, image microstructure (spatial frequency response, resolving power, granularity), statistical quality assurance, optical engineering, visual and customer evaluations and elementary modeling of these systems. |
Samples of my photography: |
 Details about how sensitometry was helpful for improving each photograph is available at Photo Data Details |
Courses taught: |
2076-301 Modern Photographic Sensitometry This course provides both fundamental and intermediate level treatment of the light sensitivity, tonal and imaging qualities of digital and conventional (film) photographic systems. Basics covered include photometry (measurement of light), densitometry (measuring light interaction with images), response of films, digital cameras and printers to various patterns and types of light , including contrast effects, and ISO speeds. Introductory digital analysis methods and graphical systems analysis of input/output relationships for imaging components and tone reproduction analysis, visual evaluations, and microscopic structure of images such as halftone designs, resolving power and granularity are also explored. Extensive laboratory sessions apply these to the generation and evaluation of precision image data bases using film and digital cameras, sensitometers, optical benches and image evaluation equipment from densitometers and microscopes to special image viewing equipment and imaging software. Students select, assemble and characterize a whole system including the light source, test patterns, exposure variations, computer analysis methods, and image processing parameters which eventually lead to precise xerographic and ink jet printing followed by subjective evaluations. Industry simulations of market research on image quality and statistical analysis for quality assurance are also carried out. |
Education: |
BS in Photographic Science, Rochester Institute of Technology, Rochester NY (Class Honors) Photographic Society of America Scholarship MS in Optical Engineering, University of Rochester, Rochester NY (Teaching Assistant) Other professional courses: Holography, Communication Theory, Image Processing and Quantitative Decision Theory. Extensive Xerox courses in: leadership, team-work, engineering effectiveness, time to market, quality functional deployment, others |
Teaching & Related Experience: |
Designed new curriculum and laboratory equipment and was Instructor for, modern Photographic Sensitometry (2076-301) for Imaging and Photographic Technology Department, School of Photographic Arts and Sciences , Rochester Institute of Technology, 2004 – present Designed new curriculum and was Instructor for 3 quarter 4th year and graduate course on Imaging Systems Analysis for Photographic and Imaging Science Department, School of Photographic Arts and Sciences , Rochester Institute of Technology, 1969-70 Designed lab experiments and analysis tasks along with providing one on one coaching to technical specialists in sensitometry, tone reproduction, halftone designs and imaging quality for clients of Torrey Pines Research, Fairport New York, 2008-present Designed and was instructor for SPIE Short Course on Scanned Image Quality (SPIE, Bellingham WA, 1991) Wrote 2 book chapters on the same subject (published by Marcel Dekker, NY, 1991 and 2004) See biographical and resume information link below Designed and was instructor or presenter for various short courses and tutorials on several aspects of digital imaging quality at Xerox Corporation, Engineering Division 1976- 2003 Active participant in Xerox Color Competency Council which designed a system of skills definitions, classifications, tests and associated learning opportunities for all Xerox personnel (1999). With key RIT faculty this included helping build and deliver a joint course on fundamentals of color. Was instrumental in designing the Image Quality modules. |
Patents & Publications (see Biography/Resume Information for more details) |
Three book chapters and two monographs (one is a short course) 20+ Journal and compendium articles and conference talks 5 US Patents Hundreds of proprietary Xerox reports on imaging quality, digital imaging and systems |
Industrial and Related Experience: |
See Don Lehmbeck's resume for informal biographical and resume information including description of work experience and details of a sampling of the most relevant publications, patents and awards. |