Old 11-02-2016, 08:44 AM #1
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Talking WTB 6x cylinder lens pair

missed the recent groupbuy and could use a pair or two of the cylinder lenses for a project that should impress.


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Old 11-02-2016, 11:07 PM #2
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Default Re: WTB 6x cylinder lens pair

Check lasershowparts... they have them in mounts for a decent price
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Old 11-03-2016, 12:15 AM #3
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Default Re: WTB 6x cylinder lens pair

OptLasers has them
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Old 11-03-2016, 03:28 AM #4
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Default Re: WTB 6x cylinder lens pair

dave at lasershowparts doesnt even have a data sheet for the efficiency of his lenses.

opt seems to have a quality product but at $60 plus shipping i'll keep looking.
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Old 11-03-2016, 04:05 AM #5
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Default Re: WTB 6x cylinder lens pair

Quote:
Originally Posted by nkgamer1990 View Post
dave at lasershowparts doesnt even have a data sheet for the efficiency of his lenses.

opt seems to have a quality product but at $60 plus shipping i'll keep looking.
The C-Lenses from LSP...I believe are BBar AR coated...SOOOooo...you can expect about approx. 1% loss...for each lens....so....a total pf 2% power loss !!

It has been my experience...that the 6X C-lenses work the best....PERIOD....

LSP has the 6X lenses...I would predict...you will not find a single set. of C-lenses...for less than $ 60.... good luck !! Edmonds sells'em at about $ 90- ...PER lens

Beam out
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Old 11-03-2016, 04:43 AM #6
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Default Re: WTB 6x cylinder lens pair

Cylindrical lens pair to suit Mitsubishi red diodes, 445nm and 520nm diodes | eBay


Glass: BK7
Coating (S1, S2): BBAR (Ravg <0.5% 350-700nm, 0 AOI)


OPTIC SIZE: 10mm x 12mm; 6mm x 12mm

Expansion ratio: 6x

Distance required between lenses: ~35mm
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Old 11-04-2016, 06:48 AM #7
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Default Re: WTB 6x cylinder lens pair

hey red cowboy, can you measure the minor and major heights of those lenses with a caliper or micrometer?

also i'm curious why we use a setup with a spherical lens and then two cylindrical lenses as opposed to just one spherical and one cylindrical lens to correct the fast axis or
ditch the spherical and use two cylindrical lenses, one for each axis.
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Old 11-04-2016, 02:11 PM #8
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Default Re: WTB 6x cylinder lens pair

They are as advertised.

Because we have an x and y axis that diverge differently, but aggressively, so a primary G2 gets the beam as tight as possible focused at infinity or closer if you prefer and the cyl pair is basically a one axis beam expander to correct the most aggressive, actually this 6X helps it a lot but is still short of a perfect correction, but you get a much improved and useful beam.







Attached Thumbnails
WTB 6x cylinder lens pair-sany0528.jpg   WTB 6x cylinder lens pair-sany0529.jpg   WTB 6x cylinder lens pair-sany0530.jpg   WTB 6x cylinder lens pair-sany0531.jpg  
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Old 11-05-2016, 06:59 AM #9
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Default Re: WTB 6x cylinder lens pair

I was looking for the radius height, ie how tall the curve is on the lens. figure I can probably source these.
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