D405-20 US-Lasers Inc. | Optoelectronics | DigiKey
405nm Violet Blue Purple Laser Dot Diode Module 20mW 13mm x 42mm with US AC Power Adapter: Amazon.com: Industrial & Scientific
Laser Diodes: Ø3.8 mm, TO-46, Ø5.6 mm, Ø9 mm, and Ø9.5 mm TO Cans
405nm Laser Diode, 20mW from Sony
405nm 20MW Point Fiber Laser Diode Module Laser Head Low Power Blue Violet - China Low Power Blue Violet Laser Module, Point Laser Head | Made-in-China.com