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Your colour perception may be shifted towards the blue end of the spectrum and therefore you don't perceive red that well. 200mW of red is not all that visible without some fog in the air as it is, sometimes it depends on the angle you are viewing it on. Lase

OOoohhh shiney :D I was just about to start polishing a host I recently de-anodized and saw this thread. Now I have motivation! Lase

Free bump for eytyxhs ;) Osram PL450 Pressed in module Lase

rhd's Calculate Relative Perceived Brightness tool isn't 100% yet. Last I remember he was looking for something more reliable than the CIE tables to base his calculations on. There was also talk about accounting for photopic and scotopic vision. Edit: Here's the thread on it (last post on...

I see a few problems with your design. 1) Being a Zippo/flip top lighter your switch is in the worst position (especially if it is a momentary) and will interfere with trying to light your cigarette. 2) What is your plan if you accidentally get some ash on the lens? 3) You will have to wear...

Re: Ehgemus 445nM Star pointer up for grabs! That's a Dorcy Jr I'm pretty sure. Lase

Re: Ehgemus 445nM Star pointer up for grabs! Would this be ok to use 2x 3.6V in? Lase

References are linked. But you seem to have a problem with reading. Ref: Luminous Flux Google Wavelength Perception Spreadsheet Lase

Read This That's the best answer that I have seen so far and covers laser brightness by colour. There is no real answer to your question as once a laser reaches a certain power the dot becomes far too uncomfortable to look at and your perception is skewed. This power level is different based on...

No perceived brightness is not linear. Maybe rather than just necro'ing old threads, try reading them. Lase

Due to the many issues that I have been having with Paypal, and the fact that it is the preferred method of payment on LPF (and the internet) I am wondering if there'd be a market for using a payment service like Paypal, but specifically laser-based. It would have the same methods of dealing...

I am so glad to see a return to the original idea. Movie mashups were a bad idea in the 80's, I don't know why they thought it'd work for AvP. Wonder if Sigourny will make a cameo :D Lase

493nm laser? Strange colour for 493 :na: All their lasers, pictures and descriptions are directly ripped from CNI, Lazerer and Wicked. They don't even bother photoshopping out the logos on the e2. Lase

Love the new avatar ;) Apt that MacGuyver just came on TV :P

Are you kidding me? Also, I asked you about this supposed 500mW in an Altoids can when you first signed up to the forum and you outright ignored me. Unless you have some way of providing proof of this, your best bet is to just edit your signature and forget it. Continuing to provide 'stories'...

Re: Proposal: Banned Members Thread I agree with a thread such as the one proposed that it'd lead to more forum drama, but if said banned parties were worried about public embarrassment then they wouldn't post anything of the sort on a public forum. My vote would be for a thread containing...

How much deeper red is 685? Santa on your million dollar bill? Lase

Playing with my camera today :) Lase

Re: CHANGES to the Buy/Sell/Trade Board Ah Just read the Op and it's been changed to 20 laser related posts. Thanks :beer: Lase

Please post a photo of the laser working. Just for potential buyers peace of mind. I'm sorry you have to let such a beautiful laser go. EDIT: Those red batteries from the looks of it, are Sanyo 18650 batteries. Lase