Light gun circuit diagram

Published:2011/5/13 4:23:00 Author:Ecco | Keyword: Light gun | From:SeekIC

The light gunis used ascomputer handling, and it can orientate in the fluorescent screen of diaplay. When light gun receives the scanning signal from fluorescent screen, impulses light, then passes the control circuity, and the computer will show the location marked by light gun.To put a shadow shield with a window before light dependent resistor(LDR), when optical scanning electron beam makes the surface of fluorescent screen shine, the resistance value of LDR will shut down rapidly, T1, T2turn onand T3 discloses, the LED make LED turned off. That shows the light gun having indicated a word. And P1 is applied in adjusting the sensitivity of light gun.



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