Akaalis, JuruWalter. Welcome to the forum to both of you. As newcomers, forum etiquette involves going the the Welcome thread and introducing yourselves to the community. Also you should read the Rules thread if you haven't already. Your best asset here is the search function. Experienced members here are willing to assist with questions that haven't already been answered.
Juru, if you read carefully, I never said I replaced the diode. I replaced the collimating lens. Different tints of blue/purple are the result of various camera settings. 445nm lasers are not true blue, but a shade to purple.
Akaalis, yes, I refocused the collimating lens. You can also put a magnifying lens in front of the laser to achieve the same result. Please try to search the forum for articles to tell you how to put a magnifying lens in your training lens.
Of course, Wicked also sells a burning lens in their expanded lens kit.