LAWRENCE MICHAEL SCHERR
OBJECTIVE
I am interested in consulting or contract assignments where I can apply my experience in the design and development of complex optical systems for applications such as telescopes, cameras spectrometers, FLIRs, and medical diagnostic instruments.
EXPERIENCE
2009 to Present: Legacy Engineering, LLC, Irvine, CA
· Consultant. DRS Technologies consulting assignment in advanced optical design.
1998 to 2009: Jet Propulsion Lab, Pasadena, CA
· Senior Engineer - Optics. Designed, built and tested reflective and refractive telescopes, spectrometers, interferometers, and camera lenses. Close collaboration with mechanical designers, systems and electrical engineering. Designed tools including: Zemax, CODEV, TracePro, ASAP, Matlab, IDL. Fabrication, optical testing, and stray light engineering for MER Mars rover lenses. Optical and thermal tolerancing, specifications and contract monitoring for lens elements, filters, and assemblies. Optical analysis team lead for metrology fiber optic laser beam launcher. Optics vendor contract monitoring cost, schedule, technical performance.
1991 to 1998: Northrop, Hawthorne, CA
· Principal Engineer. Electronic Systems Division. Optical systems engineering, optical design, and stray light analysis for building and testing automated test hardware for FLIR, TV and laser, used on Navy ships. Worked on optical design, building, and testing of Litening FLIR used by Air National Guard. Optical analysis and stray light analysis for building and testing space surveillance telescopes.
1988 to 1991: Optical Radiation Corp., Azusa CA
· IOL Optics Consultant. Optical design and testing to understand and predict performance of bifocal intraocular lenses.
1984 to 1991: Aerojet ElectroSystems, Azusa, CA
· Staff Specialist. Optical systems engineering, optical design, and stray light analysis for satellite surveillance telescopes. Designed tools including CODEV, APART, ASAP, and Zemax. Instrumentation to measure light scatter from contamination of optical surfaces. Troubleshooting to evaluate the effect on optical performance of changes in optical components. Evaluation of alignment, obscurations and radiometry in the sensor optical test chamber. Proposal writing and monitoring optical subcontractors.
LAWRENCE MICHAEL SCHERR
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1981 to 1984: Beckman Instruments, Brea, CA
· Physicist. Long Range Research. Clinical Instruments Division. Study new technologies, develop prototype instruments and reagents, to decide which will be commercialized. Build optics and electronics to detect light scatter and fluorescence from particles and cells. Lymphocyte stimulation assays. Cell sorter experiments to improve monoclonal antibody production. Experiments with antibody coated microsphere reagents, bacterial identification, fluorescent monoclonal antibodies, and fluorescent DNA dyes.
EDUCATION
B.S., Physics, Mathematics - Brooklyn College, Brooklyn, NY
M.S., Physics - University of Illinois, Urbana, IL
M.S., Electrical Engineering - University of New Mexico, Los Alamos, NM
Ph.D., Biophysics - University of California Berkeley, Berkeley, CA
AFFILIATIONS
Society of PhotoInstrumentation Engineers
Optical Society
IEEE Engineering in Medicine and Biology
American Society for Quality
Association of Old Crows
PUBLICATIONS
Zaitlin, M.P., Scherr, L.M. and Anderson, A.C. (1975) On the Boundary Scattering of Phonons in NonCrystalline Materials. Physics Rev. B, Volume 12: pages 4487-4492
Fickett, W. and Scherr, L.M. (1975) Numerical Calculation of the Cylinder Test. LA5900. Los Alamos Scientific Laboratory
Scherr L.M. and Gray J.W. (1979) Cytokinetic Analysis of Sequential DNA Distributions from Perturbed Cell Population. Lawrence Livermore Laboratory UCRL82303.
Lee W.W., Scherr L.M., Barsch, M. K. (1987) Stray Light Analysis and Suppression in Small Angle BRDF/BTDF Measurements. SPIE Proceedings VOL 675, pp 207-216.
Scherr L.M. and Lee W.W. (1987) Assessment of Condensable Molecular and Particulate Contamination on Optical Elements in Space Systems. SPIE Proceedings VOL 777, pp 127-137.
Scherr L.M., Sorensen K., Hagerott E.C., Ono R.M. (1989) BTDF of ZnSe with Multilayer Coatings at 3.39 microns. SPIE Proceedings VOL 1165, pp 260-269.
Scherr L.M., Schmidt J.H., Sorensen K., (1989) BRDF of Silicon Carbide and Aluminum Foam compared to Black Paint at microns. SPIE Proceedings VOL 1165, pp 204-211.
Sorensen K., Lee W.W., Scherr L.M. (1989) Bidirectional Transmittance Distribution Function of several infrared materials at 3.39 microns. SPIE Proceedings VOL 1165, pp 237-245.
Orlando H., Nelson N., Pappas M., Scherr L.M., (1991) Automated Measurement of Minimum Resolvable Temperature Difference in IR sensors. 1991 AutoTestCon proceedings.
Scherr L. M., Orlando H., Hall J., Godfrey T., (1996) Narcissus Considerations in Optical designs for IR Staring Arrays. SPIE Proceedings VOL 2864 pp 442-452.
Smith G. H., Hagerott E. C., Scherr L. M., Herkenhoff K. E., Bell J. F. III (2001) Optical Designs for the Mars ’03 Rover Cameras. SPIE Proceedings 4441, pp 118-131.
Ford V., Karlmann P., Hagerott E., Scherr L. SPIE (2002) Optomechanical Design of Ten Modular Cameras for the Mars Exploration Rovers. SPIE Proceedings VOL 4771 pp 214-221.
Liebe C. C., Scherr Lawrence, Willson R. G. (2004) Veiling Glare in Sun Illuminated Dusty Camera Optics. Optical Engineering Vol 43 Issue 02 pp 493-500.
Waluschka Eugene, Scherr Lawrence M. (2004) LISA Optics Model: Early Results. SPIE Proceedings VOL 5178 pp 74-81.
Waluschka Eugene, Scherr Lawrence M. (2004) LISA Optics Model: Computational Steps. SPIE Proceedings VOL 5160 pp 302-310.
Willson Reg G., Maimone Mark W., Johnson Andrew E., and Scherr Larry M., An Optical Model for Image Artifacts Produced by Dust Particles on Lenses, 8th International Symposium on Artificial Intelligence, Robotics and Automation in Space (i-SAIRAS), September 2005.
Stefan R. Martin, Daniel Scharf , Richard Wirz, Oliver Lay, David McKinstry, Bertrand Mennesson, George Purcell, Jose Rodriguez, Lawrence Scherr, James R. Smith,
Leonard Wayne, SPIE (2007) "TPF-Emma: concept study of a planet finding space interferometer" SPIE Proceedings 6693 pp 669309-1 to -9.
Haring Robert E., Pollock Randy, Sutin Brian M., Blakley Rick, Scherr Lawrence M., Crisp David SPIE (2008) Fabrication and Assembly Integration of the Orbiting carbon Observatory Instrument. SPIE Proceedings 7082 pp 708213-1 to -10.
Mitch Troy, Gary Chanan, Scott Michaels, Randy Bartos, Grahm Bothwell, Randy Hein, Max Radin, Jenny Roberts, J. Michael Rodgers, Lawrence M. Scherr, Byoung-Joon Seo, and David Zimmerman, SPIE (2008) A conceptual design for the Thirty Meter Tellescope Alignment and Phasing System SPIE Proceedings 7012 pp 70120Y-1 to -12.
PATENTS
Lenslet Array Non Mechanical Scanner, M. Lopez, N. Nelson, L. Scherr, U.S. Patent 5,448,395 (1994)
Line Source Target, H. Orlando, D. Weideman, L. Scherr, U.S. Patent 5,523,579 (1995)
NTR # 46202, Alignment and Phasing System for Segmented Telescopes, has been submitted by M. Troy, L. Scherr is identified as a contributor on this NTR.
CLEARANCES
TS and SCI