Old 01-08-2018, 01:48 PM #1
Junior Member
 
Join Date: Jan 2018
Location: United States
Posts: 5
Rep Power: 0
imallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond repute
imallett imallett is offline
Junior Member
 
Join Date: Jan 2018
Location: United States
Posts: 5
Rep Power: 0
imallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond repute
Default How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)nm?"

Hi,

I've seen a lot of questions of the form: "Is (*)mW at (*)nm brighter than (*)mW at (*)nm?" (ex 1, 2, 3, 4, 5, 6, etc.).

The first thing to know about is the luminosity function, which basically says how bright a given wavelength looks. Unfortunately, I couldn't find a nice chart built off of it, so I made one myself:



The curved lines are the luminosity function. Each curved line represents a laser shining with the same power, and the height represents the relative brightness at each wavelength. Note the logarithmic scale, which is necessary for clarity in the short and long wavelengths.

This allows you to compare brightnesses at different wavelengths. For example, say I want to see how much brighter a common 532nm @ 5mW (green) laser is versus a somewhat-rarer 638nm @ 5mW (orange-red) laser. The power of the second laser is the same as the first, so we select the "power ⨯1" line for both (since they're in a 1:1 ratio). Then we compare the heights (relative brightnesses) of that line at the appropriate wavelengths (≈9∙10⁻¹ versus ≈2∙10⁻¹). Thus we conclude that the green laser appears 4.5⨯ brighter ( 9∙10⁻¹ / 2∙10⁻¹ = 4.5 ).

For a more complicated example, let's try a 473nm @ 20mW (cyan) laser versus a 445nm @ 5mW (blue-violet) laser. We select the power ⨯4 line (right below the ⨯5 line) for the cyan laser and the ⨯1 line for the blue-violet laser because the cyan laser is 4⨯ more powerful ( 20mW / 5mW = 4 ). We again compare the heights (relative brightnesses) (≈4∙10⁻¹ for the cyan and ≈3∙10⁻² for the blue-violet). Thus we conclude that the cyan laser appears 13⅓⨯ brighter ( 4∙10⁻¹ / 3∙10⁻² = 13⅓ ).

This chart is most-valid for lasers viewed under normal lighting (outdoor / lit indoor) conditions. If it's very dark, the curves are similar, but shifted to the left. The colors in the background are rendered assuming an sRGB monitor, with out-of-gamut colors (err, all of them; computer display technology sucks) clamped to valid colors. There are other approaches, but personally I feel like the chromaticity is best-preserved this way.

(first post here; wheeeeee)


__________________
Collection: | 405 | 445450 | 510 | 515 | 532 | 589 | 635–638 | 650 |
imallett is offline   Reply With Quote


















Old 01-08-2018, 05:40 PM #2
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 17,222
Rep Power: 17514700
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is online now
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 17,222
Rep Power: 17514700
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

Your pic is 2.5 times the width of the
default 600 X 800 Pixels per screen.
If you resize your pic everyone can
see all of it and all your Text on one
screen without needing to scroll right
and left for each line of text.


Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 01-08-2018 at 05:41 PM.
lasersbee is online now   Reply With Quote
Old 01-08-2018, 06:57 PM #3
GSS GSS is offline
Class 3B Laser
 
Join Date: Apr 2015
Location: Fall river MA
Posts: 3,394
Rep Power: 18250711
GSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond repute
GSS GSS is offline
Class 3B Laser
 
Join Date: Apr 2015
Location: Fall river MA
Posts: 3,394
Rep Power: 18250711
GSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond reputeGSS has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

Am I reading or not following you and the graph wrong?
Its basicly showing a red at 650nm is the same as blue at 470nm...
__________________
"Diamond Select" TOS Phaser 532 80mw
"Diamond Select" TOS Phaser 532 150mw
"Rubie's" TOS Phaser M02 520 1.8A
"Rubie's" TOS Phaser A140 1.4A
"Rubie"s" TOS Phaser A140 1.1A "proto focus nozzle(Lifetime)"
"Rubie's" TOS Phaser M140 1.8A

Last edited by GSS; 01-08-2018 at 07:35 PM.
GSS is offline   Reply With Quote
Old 01-08-2018, 07:46 PM #4
CurtisOliver's Avatar
Class 4 Laser
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 5,584
Rep Power: 20369243
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
CurtisOliver CurtisOliver is online now
Class 4 Laser
CurtisOliver's Avatar
 
Join Date: Jun 2015
Location: Brentwood, England (Near London)
Posts: 5,584
Rep Power: 20369243
CurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond reputeCurtisOliver has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

I very much admire your effort. But luminous efficacy data looks more like this.
It is a basic plot on excel that I made.



In either scotopic or photopic conditions a 470nm and 650nm won't be of equal brightness. Either the red will overpower the blue, or vice versa depending on what condition you are basing upon.
Something looks wrong with the graph IMO.
Your peak is at 555nm so you are basing upon photopic data, yet the drop off curve is nearly identical on the blue side as it is on the red. This is inaccurate, as blue is dimmer under photopic conditions.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta






Useful Links:
Wavelength to RGB Converter
CurtisOliver is online now   Reply With Quote
Old 01-08-2018, 07:54 PM #5
Steppenwolf's Avatar
Junior Member
 
Join Date: Nov 2017
Location: Fremont
Posts: 29
Rep Power: 0
Steppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond repute
Steppenwolf Steppenwolf is offline
Junior Member
Steppenwolf's Avatar
 
Join Date: Nov 2017
Location: Fremont
Posts: 29
Rep Power: 0
Steppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond reputeSteppenwolf has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

Quote:
Originally Posted by lasersbee View Post
Your pic is 2.5 times the width of the
default 600 X 800 Pixels per screen.
If you resize your pic everyone can
see all of it and all your Text on one
screen without needing to scroll right
and left for each line of text.


Jerry
How's this?

Steppenwolf is offline   Reply With Quote
Old 01-08-2018, 09:59 PM #6
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 11,775
Rep Power: 20677086
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 11,775
Rep Power: 20677086
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

I Noticed this graph is not accurate when comparing several lasers I have at known powers and their visibility in light and dark conditions.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
502nm 110 mW 501B Lifetime
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
574nm OptLaser DPSS Laser 36 mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM
paul1598419 is online now   Reply With Quote
Old 01-08-2018, 10:33 PM #7
Class 3R Laser
 
Join Date: Jun 2007
Posts: 1,989
Rep Power: 5012910
steve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond repute
steve001 steve001 is offline
Class 3R Laser
 
Join Date: Jun 2007
Posts: 1,989
Rep Power: 5012910
steve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond reputesteve001 has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

Quote:
Originally Posted by imallett View Post
Hi,

I've seen a lot of questions of the form: "Is (*)mW at (*)nm brighter than (*)mW at (*)nm?" (ex 1, 2, 3, 4, 5, 6, etc.).

The first thing to know about is the luminosity function, which basically says how bright a given wavelength looks. Unfortunately, I couldn't find a nice chart built off of it, so I made one myself:



The curved lines are the luminosity function. Each curved line represents a laser shining with the same power, and the height represents the relative brightness at each wavelength. Note the logarithmic scale, which is necessary for clarity in the short and long wavelengths.

This allows you to compare brightnesses at different wavelengths. For example, say I want to see how much brighter a common 532nm @ 5mW (green) laser is versus a somewhat-rarer 638nm @ 5mW (orange-red) laser. The power of the second laser is the same as the first, so we select the "power ⨯1" line for both (since they're in a 1:1 ratio). Then we compare the heights (relative brightnesses) of that line at the appropriate wavelengths (≈9∙10⁻¹ versus ≈2∙10⁻¹). Thus we conclude that the green laser appears 4.5⨯ brighter ( 9∙10⁻¹ / 2∙10⁻¹ = 4.5 ).

For a more complicated example, let's try a 473nm @ 20mW (cyan) laser versus a 445nm @ 5mW (blue-violet) laser. We select the power ⨯4 line (right below the ⨯5 line) for the cyan laser and the ⨯1 line for the blue-violet laser because the cyan laser is 4⨯ more powerful ( 20mW / 5mW = 4 ). We again compare the heights (relative brightnesses) (≈4∙10⁻¹ for the cyan and ≈3∙10⁻² for the blue-violet). Thus we conclude that the cyan laser appears 13⅓⨯ brighter ( 4∙10⁻¹ / 3∙10⁻² = 13⅓ ).

This chart is most-valid for lasers viewed under normal lighting (outdoor / lit indoor) conditions. If it's very dark, the curves are similar, but shifted to the left. The colors in the background are rendered assuming an sRGB monitor, with out-of-gamut colors (err, all of them; computer display technology sucks) clamped to valid colors. There are other approaches, but personally I feel like the chromaticity is best-preserved this way.

(first post here; wheeeeee)
Are you familiar with Sam's Laser FAQ?
See this chart. https://www.repairfaq.org/sam/laserioi.htm#ioilvs
steve001 is offline   Reply With Quote
Old 01-08-2018, 11:33 PM #8
Junior Member
 
Join Date: Jan 2018
Location: United States
Posts: 5
Rep Power: 0
imallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond repute
imallett imallett is offline
Junior Member
 
Join Date: Jan 2018
Location: United States
Posts: 5
Rep Power: 0
imallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond reputeimallett has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

Quote:
Originally Posted by steve001 View Post
Are you familiar with Sam's Laser FAQ?
See this chart. https://www.repairfaq.org/sam/laserioi.htm#ioilvs
I've definitely encountered Sam's laser pages, though not this chart in-particular.

Quote:
Originally Posted by CurtisOliver View Post
In either scotopic or photopic conditions a 470nm and 650nm won't be of equal brightness. Either the red will overpower the blue, or vice versa depending on what condition you are basing upon.

[...]

Your peak is at 555nm so you are basing upon photopic data, yet the drop off curve is nearly identical on the blue side as it is on the red. This is inaccurate, as blue is dimmer under photopic conditions.
I don't think this is correct; in photopic conditions e.g. 473nm and 650nm have almost exactly the same response—see e.g. the chart in Sam's laser page (0.104 vs. 0.107). The chart may look qualitatively different because of the log scale, but the numbers are actually very similar.

As I mentioned, this is based on photopic lighting conditions. (Actually, it's based on the CIE standard observer functions, not the luminosity function, though one gets the same thing.) That said, you're absolutely right that the chart isn't valid under mesopic or scotopic conditions.

I found a few variants of the scotopic function, but I don't know which is best (and I found none for mesopic). If you could please point me to these datasets, I'll make graphs for mesopic and scotopic as well!

Quote:
Originally Posted by lasersbee View Post
Your pic is 2.5 times the width of the
default 600 X 800 Pixels per screen.
If you resize your pic everyone can
see all of it and all your Text on one
screen without needing to scroll right
and left for each line of text.
I made it wide so it would have a lot of detail. Should . . . should I resize it?
__________________
Collection: | 405 | 445450 | 510 | 515 | 532 | 589 | 635–638 | 650 |
imallett is offline   Reply With Quote
Old 01-09-2018, 12:19 AM #9
Benm's Avatar
Class 4 Laser
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,826
Rep Power: 6380209
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Benm Benm is online now
Class 4 Laser
Benm's Avatar
 
Join Date: Aug 2007
Location: Netherlands
Posts: 7,826
Rep Power: 6380209
Benm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond reputeBenm has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

Something seems off on that chart: Looking at it something of equal power at 450 nm should be as bright as 670 nm or around there according to the chart.

I'd practically find that say 10 mW of 450 nm looks a lot brighter than 10 mW of 670 nm. This may vary between people, but i think most people would agree when looking at two actual lasers (or their projected dots on a white surface).

This might not be your fault though, but just an error in the luminosity function that is not very accurate towards the ends of the visible spectrum.

Another issue with the dot is that the shorter wavelengths will make many targets fluoresce so appear far brighter - something like that is certainly true for near-invisible light like 405 nm that can produce a surprisingly bright dot onto a piece of paper. This has nothing to do with the luminosity function being wrong as such, but people will notice it in practical use.
Benm is online now   Reply With Quote
Old 01-09-2018, 01:08 AM #10
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 11,775
Rep Power: 20677086
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
paul1598419 paul1598419 is online now
Class 4 Laser
paul1598419's Avatar
 
Join Date: Sep 2013
Location: Washington State
Posts: 11,775
Rep Power: 20677086
paul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond reputepaul1598419 has a reputation beyond repute
Default Re: How to solve questions of the form "Is (*)mW at (*)nm brighter than (*)mW at (*)n

As far as 405nm goes, it depends on whether or not the paper has fluorescent material in it. I know laundry detergents use fluorescence to make otherwise stained clothing "look" cleaner. It isn't really cleaner, but does look whiter and brighter to our eyes.
__________________
405nm Laser Pointer 45mW
405nm C11 700mW
405nm Laser Shack Pointer 80mW
Thor H Dual Power 445nm, 438 mW & 1648 mW
445nm 3 watts MS-SSW-II
445nm 2.2 watts Nichia MS Envy

473nm 50 mW BWB-10-OEM DPSS
477nm 127 mW 501B
488nm 135 mW EDC Sharp diode
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
493nm 120 mW 501B
502nm 110 mW 501B Lifetime
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
574nm OptLaser DPSS Laser 36 mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
638nm 1 watt Cyprus II
635nm 100mW pointer
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
Ocean Optics USB2000 Spectrometer
B&W TEK BTC100 Spectrometers X3
Scientech Vector S310 with AC2500 10 Watt LPM/ Hyperion 6 Watt & 20 Watt LPM/ Radiant X4 3.7 Watt LPM
paul1598419 is online now   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 09:21 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC