Acoustic triggered laser device for simulating firearms
First Claim
1. A device for mounting on a firearm and for momentarily emitting a beam of light to simulate the firing of the firearm, wherein the firearm includes a firing mechanism, and wherein activation of the firing mechanism causes an acoustical energy pulse to be generated, the device comprising:
- means for sensing the acoustical energy and producing a voltage pulse having an amplitude in response to the acoustical energy pulse, said voltage pulse amplitude being proportional to the energy of the acoustical energy pulse;
means for setting a threshold voltage;
an amplifier having a non-inverting input, an inverting input, and an output, wherein the inverting input is coupled to said means for setting a threshold voltage and the non-inverting input is coupled to said means for sensing;
means coupled to the output of said amplifier for asserting an activation signal for at least a predetermined duration if said voltage pulse amplitude is above said threshold voltage;
means for emitting the beam of light when powered; and
means responsive to said activation signal and coupled to said light beam emitting means for powering said light beam emitting means when said activation signal is asserted.
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Abstract
A device that simulates the firing of a firearm. The device includes a piezoelectric crystal for detecting high amplitude acoustic pulses generated when the firing mechanism of the firearm is activated. The piezoelectric crystal provides a voltage pulse to a amplitude detecting circuit. If the pulse generated by the piezoelectric crystal is above a threshold value, the amplitude detecting circuit causes a laser diode to be energized. The laser diode directs a beam at the target to allow the user to determine where the "shot" is fired. The laser diode is activated for a sufficiently long period of time to allow the laser spot to be visible to the human eye and also to allow a streak to be developed if the firearm is pulled slightly by the user when the trigger is pulled. The device is conveniently mounted under the barrel of the firearm.
53 Citations
43 Claims
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1. A device for mounting on a firearm and for momentarily emitting a beam of light to simulate the firing of the firearm, wherein the firearm includes a firing mechanism, and wherein activation of the firing mechanism causes an acoustical energy pulse to be generated, the device comprising:
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means for sensing the acoustical energy and producing a voltage pulse having an amplitude in response to the acoustical energy pulse, said voltage pulse amplitude being proportional to the energy of the acoustical energy pulse; means for setting a threshold voltage; an amplifier having a non-inverting input, an inverting input, and an output, wherein the inverting input is coupled to said means for setting a threshold voltage and the non-inverting input is coupled to said means for sensing; means coupled to the output of said amplifier for asserting an activation signal for at least a predetermined duration if said voltage pulse amplitude is above said threshold voltage; means for emitting the beam of light when powered; and means responsive to said activation signal and coupled to said light beam emitting means for powering said light beam emitting means when said activation signal is asserted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A device for mounting on a firearm and for momentarily emitting a beam of light to simulate the firing of the firearm, wherein the firearm includes an external surface and a firing mechanism, and wherein activation of the firing mechanism causes an acoustical energy pulse to be generated, the device comprising:
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a housing adapted for attachment to the external surface of the firearm; means positioned inside said housing for sensing the acoustical energy and producing a voltage pulse having an amplitude in response to the acoustical energy pulse, said voltage pulse amplitude being proportional to the energy of the acoustical energy pulse; a circuit board mounted inside said housing, wherein said circuit board is electrically contacted to said sensing means, and wherein said circuit board includes; means for setting a threshold voltage; an amplifier having a non-inverting input, an inverting input, and an output, wherein the inverting input is coupled to said means for setting a threshold voltage and the non-inverting input is coupled to said sensing means; and means coupled to the output of said amplifier for asserting an activation signal for at least a predetermined duration if said voltage pulse amplitude is above said threshold voltage; and means mounted inside said housing and coupled to said circuit board for emitting the beam of light when powered, wherein said circuit board further includes; means responsive to said activation signal and coupled to said light beam emitting means for powering said light beam emitting means when said activation signal is asserted. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification