Old 07-25-2017, 10:01 AM #17
Junior Member
 
Join Date: Jul 2017
Posts: 9
Rep Power: 0
Project Excalibur is on a distinguished road
Project Excalibur Project Excalibur is offline
Junior Member
 
Join Date: Jul 2017
Posts: 9
Rep Power: 0
Project Excalibur is on a distinguished road
Default Re: 301 Laser Output Test by LPM

Quote:
Originally Posted by paul1598419 View Post
You also need to be able to speak Chinglish, as there is no such thing as a green violet laser. They often misspeak when describing items for sale. It is likely a 405nm violet laser with the output power somewhere between 50 mW and maybe 100 mW.
Well they're Malaysian, not Chinese, but you're generally accurate, the auction itself really is bereft with spelling mistakes and out-right confusing sentences. They don't even tell buyers that they'll be receiving a nice box to house the laser, either. Therefore, they're really doing themselves no favors.

So, while the seller clearly doesn't really know what they're selling, the actual product exceeded my expectations.

I can understand the skepticism on its output, but as the pointer has a more honest label stating "< 200 mW output", and it is noticeably brighter than the comparably priced 405nm laser 301. I'm going to stand by my "eyeballing" opinion that it is emitting at least about 150 mW, until such time that someone tests the laser with a LPM and proves me wrong, and if you do, I'll send you my hat, it's a very-very nice hat by the way.

Anyone willing to take the bet?

For science.
http://www.ebay.com/itm/405nm-purple...YAAOSwn7JYENQE



Last edited by Project Excalibur; 07-25-2017 at 10:15 AM.
Project Excalibur is offline   Reply With Quote


















Old 07-25-2017, 05:24 PM #18
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 17,223
Rep Power: 17713445
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: 17,223
Rep Power: 17713445
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: 301 Laser Output Test by LPM

Quote:
Originally Posted by tommy View Post
put the laser close to the sensor is mainly to show what laser is testing. i'm not chasing high number. and our lasers are claimed lower output than the test. i think the number doesn't really matter, as long as it doesn't have great differences. the laser pointer is a whole thing, with laser diode, host, driver, lens, and different wavelength and power. just my personal opinions.
Unfortunately customers do want to know the
correct numbers...
Holding the Laser too close to the LPM sensor
can falsify the reading due to IR heat produced
by the Laser and/or your hand and may even
damage the sensor's coating if touched by the
laser.

If the numbers don't really matter why do you
bother to test the Lasers on an LPM ???

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
lasersbee is online now   Reply With Quote
Old 01-09-2018, 07:34 PM #19
Class 2 Laser
 
Join Date: Nov 2006
Location: Shelton WA. USA
Posts: 443
Rep Power: 33061
The_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond repute
The_LED_Museum The_LED_Museum is offline
Class 2 Laser
 
Join Date: Nov 2006
Location: Shelton WA. USA
Posts: 443
Rep Power: 33061
The_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond reputeThe_LED_Museum has a reputation beyond repute
Default Re: 301 Laser Output Test by LPM

I purchased a "301" laser quite a number of months ago but it is violet, not DPSS green.
I haven't spetroed or LPMed it yet, but it is of decent output power -- when the focus is adjusted so that its beam comes to a point, it will cause smoke to issue from wood and dark plastic.

I believe that I purchased this on Ebay as a "5mW" laser. :-p
__________________

Last edited by The_LED_Museum; 01-09-2018 at 07:37 PM.
The_LED_Museum is offline   Reply With Quote
Old 01-09-2018, 08:22 PM #20
paul1598419's Avatar
Class 4 Laser
 
Join Date: Sep 2013
Location: Washington State
Posts: 11,775
Rep Power: 20875830
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: 20875830
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: 301 Laser Output Test by LPM

Quote:
Originally Posted by The_LED_Museum View Post
I purchased a "301" laser quite a number of months ago but it is violet, not DPSS green.
I haven't spetroed or LPMed it yet, but it is of decent output power -- when the focus is adjusted so that its beam comes to a point, it will cause smoke to issue from wood and dark plastic.

I believe that I purchased this on Ebay as a "5mW" laser. :-p
Those don't put out much optical power. Usually around 80 mW, but they can be focused down to a very small dot. This makes the power density of the beam profile much higher than it would be otherwise. For the money, they are worth having in your collection.
__________________
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

Tags
lpm, output test





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 09:38 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