Recent content by Externet

Attached images; button side on the mirror. Unable to focus better :(

Thanks again; that was also good education. LB rating is a new concept to me and will take some time to understand it clear. For a case of a 2 watt in the range of 405 to 450 nm used undersea ! continuous wave for 5 seconds; projected away from the observer operator point, is a filter LG20 as...

Thank you, RedCowboy, for a good link on the subject. The two major things learned here, -in my wording- are : - The color of the goggle lenses tells nothing related to the wavelenght meant to protect/block/attenuate. Is like a fashion preference. A lens color selected must be tested for...

Hi. Does anyone know the schematic of a driver board ~16mm x 10mm with a LM358 I.C, a tact switch and a couple of transistors and few resistors supposed to drive a 1500mW violet, was inside a 14mm pointer tube ? No potentiometer trimmer. It is masked white, unable to follow its traces to...

Spiders do get zapped from the webs on my walls, aiming by hand with my violet pointer :oops:

Hi. Saw goggles of several colors sold for protection to violet. Lenses color has no relation to protect from a laser color ? If someone is working with several wavelenght lasers, can pick any goggles from the pretty colorful pile in the drawer; or the reverse, working behind a...

Will need to reinvent the wheel. Found zero with side push button switch at your link. Only then can start to tackle the modification.

Hi. Which simple pointer in the market would you suggest to obtain; powered by a removable 18650, switch button on the side, that can be made 100 feet waterdepth proof for scuba use, fitting a ~1Watt violet or blue laser diode in place of whatever has original, focusable to ~20' away ?

Hello. Found a KES-400A diode that emits violet and red from the same die (used in PS3 gaming equipment); Do you know of a vendor for similar others for engraving use ?

Hello. A white beam of intensity 'X' made to pass trough a purple colored 'filter' of 'Y' nm yields a 'Z' amount of energy at target. How different is the level of energy at target for a purple laser of same 'Y' nm ? In other words; to make a purple laser and a colored white beam hit the same...

Thanks. How come the reply above refers to LED factors and compares to LEDs instead of comparing to laser diodes ? Is it of A.I. source ?

Hello. Saw some graphs of how long time and lumens for several models of LEP. But seems to be the duration of their battery emitting the light. Assuming the battery is of 'infinite' duration or external power supply; and temperature and whatever other parameters are kept correctly; when would...

Hello. Looking for a supplier of film, sheet or thicker protection to attach or replace the one on goggles similar to these common ones, or to place in an flat inspection window. For 405nm or 450nm / violet engraving. Not the standard curved or wraparound proper worn goggles on the market...

Hello. The ones offered in the market mention they work with 5V. Is it 5V because there is a current limiter built-in or because it is the maximum supply to it or any suggestion to source one that works with a 18650 cell ? Example

Want to open it to coat/fill everything in melted wax to make it waterproof.