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.
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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