Device that emits laser beams at automatically-changing pulse frequencies
An improved hand-held laser device that automatically changes the pulse frequency while the laser beam is being generated. The device comprises one or more laser energy sources and a frequency controller to change the pulse frequency of the emitted laser light. In certain embodiments, the frequency change is predictable and can be defined by a formula. In other embodiments, the frequency change is unpredictable and is determined using a pseudo-random number generator algorithm.
1 . A laser device comprising:
a) one or more laser energy sources for generating one or more laser beams;
b) one or more frequency controllers in operative communication with at least one laser energy source;
c) wherein at least one frequency controller automatically changes the pulse frequency of at least one laser beam while the laser beam is being generated.
2 . A device according to claim 1 wherein the pulse frequency of at least one laser beam changes substantially randomly.
3 . A device according to claim 2 wherein at least one frequency controller further comprises a pseudorandom number generator algorithm.
4 . A device according to claim 2 wherein at least one frequency controller further comprises a random number generator.
5 . A device according to claim 4 wherein at least one frequency controller further comprises a noise generator circuit.
6 . A device according to claim 2 wherein at least one frequency controller further comprises one or more shift registers.
7 . A device according to claim 1 in which the pulse frequency changes every second.
8 . A device according to claim 1 wherein the pulse frequency changes linearly.
9 . A device according to claim 1 wherein the pulse frequency changes sinusoidally.
10 . A device according to claim 1 wherein the pulse frequency changes in a step function.
11 . A device according to claim 1 wherein the pulse frequency changes exponentially.
12 . A device according to claim 1 wherein the pulse frequency changes follow a substantially Gaussian curve.
13 . A device according to claim 1 wherein at least one laser energy source is a semiconductor diode.
14 . A device according to claim 1 wherein at least one laser energy source is housed in a base.
15 . A device according to claim 1 wherein at least one laser energy source is housed in a hand-held probe.
16 . A device according to claim 1 wherein one or more laser beams has a wavelength in the visible range.
17 . A device according to claim 16 wherein one or more laser beams is red.
18 . A device according to claim 1 wherein one or more laser beams has a wavelength in the infrared range.
19 . A device according to claim 1 wherein one or more laser beams has a wavelength in the ultraviolet range.
20 . A device according to claim 1 further comprising one or more optical arrangements for receiving one or more laser beams and for transforming each of the laser beams into a desired spot shape.
21 . A device according to claim 20 wherein at least one spot shape is substantially linear.
22 . A device according to claim 20 wherein at least one spot shape is substantially circular.
23 . A device according to claim 20 wherein at least one spot shape is substantially elliptical.
24 . A laser device according to claim 1 wherein:
a) the pulse frequency changes in a pattern for a period of time; and
b) the pulse frequency changes randomly for a period of time.
25 . A laser device according to claim 1 wherein the pulse frequency changes in a pattern for a random period of time.
26 . A laser device according to claim 1 wherein the pulse frequency changes randomly for a random period of time.
27 . A laser device comprising:
a) one or more the laser energy sources housed within a hand-held wand for generating one or more laser beams;
b) an optical arrangement for receiving at least one laser beam and for transforming at least one laser beam into a desired spot shape; and
c) one or more the frequency controllers in operative communication with one or more the laser energy sources to generate one or more laser beams with a pulse frequency that changes randomly.
28 . A laser device comprising:
a) one or more the laser energy sources housed within a hand-held wand for generating one or more laser beams;
b) an optical arrangement for receiving at least one laser beam and for transforming at least one laser beam into a desired spot shape; and
c) one or more the frequency controllers in operative communication with one or more the laser energy sources to generate one or more laser beams with a pulse frequency that changes in a predictable pattern.