Keyence LK G3000, The High-accuracy CCD Laser Displacement Sensor for measuring distance and position with 6 sensor-heads and Newly Developed Li-CCD (Linearized CCD) :
The LK Laser Projector 9000 DLP, The Projector of Our Dreams
Ultra High-Speed/High-Accuracy Laser Displacement Sensor - LK-G5000 series | KEYENCE America
Amazon.com: TL80 Termin8r Ultra-Core Laser Gaming Mouse | Light Strike (LK) Optical Switch & Scroll - Shift Lever and 8 Programmable Buttons with Advanced Macros - X'Glide Armored Mouse Feet - USB :