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Last Updated on: Thursday, April 07, 2016 02:04 PM

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Laser Circuits

40Khz Burst Laser Diode Driver  -  Some laser tag or simulated combat games can use this circuit to send short bursts of modulated laser light at the opponent's vest, equipped with a matching light receiver. The circuit operates from three 1.5v cells (4.5v) that should provide enough energy . . . [Hobby Circuit designed by David A. Johnson P.E.,  06/04/00]


Laser Diode Tester  -  This circuit can either be used to test laser diodes or as a general purpose modulated light source. The circuit has an adjustable diode threshold current and an adjustable modulation frequency. The frequency can be adjusted from below 30KHz to above 50MH . . . [Circuit by David Johnson P.E.,  03/20/99]

LED/Laser Light Output Intensity Meter  -  This circuit uses a large 1cm X 1cm silicon PIN photo diode and a transimpedance Amplifier to measure the light power output of infrared and visible LEDs and laser diodes. It can be modified to produce almost any milliwatts to volts scale factor. It can b . . . [Hobby Circuit designed by Dave Johnson P.E.,  07/08/00]


Micro Power 40Khz Burst Laser Diode Driver  -  Some laser tag or simulated combat games can use this circuit to send short bursts of modulated laser light at the opponent's vest, equipped with a matching light receiver. The circuit operates from three 1.5v cells (4.5v) that should provide enough energy . . . [Circuit by David Johnson P.E.,  06/04/00]


 
Count Cars with Laser  -  This is an illustration how a laser could be used to count traffic and measure the speed of each car passing through the sensor area . . . [Hobby Circuit designed by David A. Johnson P.E.,  01/07/07]


 
Laser Used As Vehicular Traffic Counter  -  This is an illustration how a laser could be used to count traffic and measure the speed of each car passing through the sensor area . . . [Circuit by David A. Johnson P.E.,  01/07/07]


 
Tester for Modulated Laser Diode  -  This circuit can either be used to test laser diodes or as a general purpose modulated light source. The circuit has an adjustable diode threshold current and an adjustable modulation frequency. The frequency can be adjusted from below 30KHz to above 50MH . . . [Hobby Circuit designed by Dave Johnson P.E.,  03/20/99]


Laser Circuits

Master Category List - Dave's Circuits

 


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