Wicked Lasers - http://www.wickedlasers.com.hk/arctic http://www.wickedlasers.com.hk/krypton The Spyder 3 10x Beam Expander expands the diameter of your laser, which reduces the divergence by a factor of 10. This expands the already-very-long-range of your
Krypton Argon Ion Laser | Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers
Krypton (Kr) | AMERICAN ELEMENTS ®
Ion laser - Wikipedia
Spyder 3 Krypton Green Handheld Laser
Eye surgery using an argon/krypton laser - Stock Image - M900/0016 - Science Photo Library