The HiViz WorkShop
LAT-DU. Light-Activated Trigger-Delay UnitPackage, Unassembled
This
package includes the parts to build a light-activated trigger
with an electronic delay unit. There is a $1.00 discount
from the price of both kits purchased separately. There
is an additional $1.00 discount for purchasing the combination
with a breadboard.
This trigger operates the reverse of our photogate kits. The output of the light-activated trigger is switched on when light shines on the detector. A laser pointer works particularly well as a light source, since the phototransistor is sensitive to visible light and has a narrow angle of view. You can also use this circuit to trigger a slave flash in response to the discharge of a master flash.
The kit includes three feet of 2-conductor cable for splicing the output to a PC cord or Flash-to-PC adapter. The latter two items are not provided with the kit but can be purchased separately. See the Product Guide for various connection options. In order to trigger a camera, see the Camera Opto-Switch or this DIY method.
A 9-V battery or 9-V AC/DC Adapter is required to power the circuit.
The kit does include an additional 3 feet of 2-conductor cable that can be used to extend the phototransistor away from the breadboard.
When built on a breadboard, the completed circuit will look similar to that shown. Click on the photo for a larger view. For descriptions of the individual light-activated trigger and delay unit kits, go to these links:
LAT kit | DU electronic delay kit
Purchase this kit assembled.
Click here for more
information or below to order.
