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2026.09.28 Notice [Sample] Beam Analysis Product Guide: Spot Shape, Size, and Position → 2026.09.28 Notice [Sample] Spectroscopy Product Guide: Applications and Spectrometer Selection Requirements → 2026.09.28 Notice [Sample] KASEI OPTICS Instrument Selection: From Application Needs to Product Configuration → 2026.09.27 Trade show [Sample] Optics Exhibition Discussion Topics: Lasers, Spectrometers, and Beam Measurement → 2026.09.20 New product [Sample] Product Spotlight: Narrow-Linewidth CW Semiconductor Laser → 2026.09.13 Case study [Sample] Application Concept: Laser Beam Quality Measurement and Optical Path Configuration → 2026.09.06 Notice [Sample] Introducing KASEI OPTICS: The Optics Business Group of 華世商務株式会社 →