JBTexas
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- Jun 5, 2011
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I've PM'd Garoq, awaiting news, but I may as well ask for as many opinions as I can get.
Should I order a G1 glass lens for my Survival Laser 660nm 300mw? (which I ordered with the default AR coated acrylic lens).
I've already searched through the forum, re: "Glass versus Acrylic".
Didn't help as much as you might expect.
Two (sometimes three) consistancies:
(a) Glass is generally easier to clean without damaging the lens than acrylic.
(b) Glass is less prone to damage than acrylic.
(c) GENERALLY it is said "glass = more performance".
Burning is fine, but my priority is visibility-over-distance. *IF* a G1 results in *significant* output improvement over acrylic, that amounts to the same thing; more output = more visible; DISREGARDING a difference of divergence.
=====
About the acrylic that I DO have... I have some artifacting, and I don't know if this is normal. Maybe it IS normal for acrylic, but would NOT show up w/ a glass lens.
Unfortunately I do not have a digital camera.
The SPOT is just fine. The laser burns. The laser can focus and can focus a bright spot a very far distance away.
There IS a weird little thin red line going through the spot extending outwards, when focused to a good / perfect spot. Searching the forum indicates that is normal, and some people even find it useful for attaining good focus.
(1) A (dimmish) red halo around the bright spot containing what looks like "mottled alligator skin". Like a diffuse halo of dim red light shining through "transparent slightly melted plastic".
(2) When set to a soft focus, where the spot is at least > 4 inches or so, I see some... "ripples"... off of the center of the spot... it looks almost like a partial fingerprint, or a piece of a fingerprint. NO, when assembling the laser I did NOT at any time touch the lens. I call it a fingerprint... I don't know... it could be just some optical effect, a minor imperfection, something that some acrylics are just going to have.
=====
I've already spent quite a bit of money this month. I can / am willing to spend more, *IF* getting this glass lens = a benefit(s).
- Thanks
EDIT: Oops I forgot to reference this:
http://laserpointerforums.com/f50/weird-dust-around-dot-64389.html
I found that thread while searching for possible answers on those artifacts, which may or may not be associated with simply having an acrylic lens.
No, the lens not get stained with soot.
I tried cleaning both sides of the lens w/ a *DRY* lint-free Q-Tip, NO LIQUIDS, and then I used a can of compressed air.
No change.
Under a magnifying glass, the little acrylic LOOKS fine.
Should I order a G1 glass lens for my Survival Laser 660nm 300mw? (which I ordered with the default AR coated acrylic lens).
I've already searched through the forum, re: "Glass versus Acrylic".
Didn't help as much as you might expect.
Two (sometimes three) consistancies:
(a) Glass is generally easier to clean without damaging the lens than acrylic.
(b) Glass is less prone to damage than acrylic.
(c) GENERALLY it is said "glass = more performance".
Burning is fine, but my priority is visibility-over-distance. *IF* a G1 results in *significant* output improvement over acrylic, that amounts to the same thing; more output = more visible; DISREGARDING a difference of divergence.
=====
About the acrylic that I DO have... I have some artifacting, and I don't know if this is normal. Maybe it IS normal for acrylic, but would NOT show up w/ a glass lens.
Unfortunately I do not have a digital camera.
The SPOT is just fine. The laser burns. The laser can focus and can focus a bright spot a very far distance away.
There IS a weird little thin red line going through the spot extending outwards, when focused to a good / perfect spot. Searching the forum indicates that is normal, and some people even find it useful for attaining good focus.
(1) A (dimmish) red halo around the bright spot containing what looks like "mottled alligator skin". Like a diffuse halo of dim red light shining through "transparent slightly melted plastic".
(2) When set to a soft focus, where the spot is at least > 4 inches or so, I see some... "ripples"... off of the center of the spot... it looks almost like a partial fingerprint, or a piece of a fingerprint. NO, when assembling the laser I did NOT at any time touch the lens. I call it a fingerprint... I don't know... it could be just some optical effect, a minor imperfection, something that some acrylics are just going to have.
=====
I've already spent quite a bit of money this month. I can / am willing to spend more, *IF* getting this glass lens = a benefit(s).
- Thanks
EDIT: Oops I forgot to reference this:
http://laserpointerforums.com/f50/weird-dust-around-dot-64389.html
I found that thread while searching for possible answers on those artifacts, which may or may not be associated with simply having an acrylic lens.
No, the lens not get stained with soot.
I tried cleaning both sides of the lens w/ a *DRY* lint-free Q-Tip, NO LIQUIDS, and then I used a can of compressed air.
No change.
Under a magnifying glass, the little acrylic LOOKS fine.
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