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30 November 2023 Maximizing yield, throughput and quality of optical glass: two years later on-line laser inspection
Timothy A. Potts
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Proceedings Volume PC12778, Optifab 2023; PC1277805 (2023) https://doi.org/10.1117/12.2690515
Event: SPIE Optifab, 2023, Rochester, New York, United States
Abstract
At Optifab 2021, the need to detect defects in optical glass during IQC, post cleaning, post coating and final QC was recognized as paramount. Throughout the industry, legions of inspectors perform manual inspection adding cost, constraining production and reducing yield/quality. In-line 100% automatic defect detection utilizing Solid-State Laser Reflection (SSLR) technology has been successfully applied to this challenge; defect detection to 1µm has been achieved, while concurrently solving the problems associated with conventional camera and laser systems including defect detection limitations, false hits, alignment problems and the ability to inspect curved optics. Since OptiFab 2021, Solid-State Laser Reflection (SSLR) technology has been successfully deployed in a variety of optical glass applications; Uncoated, Coated, Plano-Plano, Plano-Convex, and Spherical optics; both ISO and MIL compliant. System theory will be explained, and applications examples will be provided.
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Timothy A. Potts "Maximizing yield, throughput and quality of optical glass: two years later on-line laser inspection", Proc. SPIE PC12778, Optifab 2023, PC1277805 (30 November 2023); https://doi.org/10.1117/12.2690515
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KEYWORDS
Inspection
Glasses
Defect detection
Reflection
Coating
Laser applications
Solid state lasers
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