Three dimensional imaging of veins
First Claim
Patent Images
1. A method of creating a three dimensional image of a target comprising:
- emitting a first beam of laser light having a first wavelength from a first laser; and
emitting a second beam of laser light having a wavelength from a second laser that is different from the wavelength of said first beam of laser light;
combining said first and second beams of laser light into a beam of light;
transmitting the combined beams of laser light to a scanner;
transmitting said combined beams of laser light from said scanner to said target; and
wherein said target is a patient and wherein light from said first laser is reflected off the patient and absorbed by the blood in the veins in the patient'"'"'s body; and
wherein said first beam of laser light is emitted by a first laser, said first laser having a means for varying the laser intensity, said means for varying the first laser intensity driving a first laser driver for said first beam of laser light at a power output dependent on a frame of a frame counter; and
wherein the reflected light is sensed and converted to an analog signal, said signal passing through a converter which outputs a digital representation to a first image memory for each frame and whereupon completion of each frame, said image memory contains an image; and
displaying said image.
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Abstract
Method for creating a three dimensional imaging system is disclosed. There is a first source of laser light and a second source of laser light having a wavelength different from the wavelength of the laser light of the first source. The laser light from the first and second sources are combined, and the combined laser light is transmitted to a scanner. The scanner further transmits the combined light to a surface to be imaged.
42 Citations
25 Claims
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1. A method of creating a three dimensional image of a target comprising:
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emitting a first beam of laser light having a first wavelength from a first laser; and emitting a second beam of laser light having a wavelength from a second laser that is different from the wavelength of said first beam of laser light; combining said first and second beams of laser light into a beam of light; transmitting the combined beams of laser light to a scanner; transmitting said combined beams of laser light from said scanner to said target; and wherein said target is a patient and wherein light from said first laser is reflected off the patient and absorbed by the blood in the veins in the patient'"'"'s body; and wherein said first beam of laser light is emitted by a first laser, said first laser having a means for varying the laser intensity, said means for varying the first laser intensity driving a first laser driver for said first beam of laser light at a power output dependent on a frame of a frame counter; and
wherein the reflected light is sensed and converted to an analog signal, said signal passing through a converter which outputs a digital representation to a first image memory for each frame and whereupon completion of each frame, said image memory contains an image; anddisplaying said image. - 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)
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25. A method of creating a three dimensional image of a target comprising:
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emitting a first beam of laser light having a first wavelength from a first laser; and emitting a second beam of laser light having a wavelength from a second laser that is different from the wavelength of said first beam of laser light; combining said first and second beams of laser light into a beam of light; transmitting the combined beams of laser light to a scanner; transmitting said combined beams of laser light from said scanner to said target; and wherein said target is a patient and wherein light from said first laser is reflected off a patient and absorbed by the blood in the veins in a patient'"'"'s body; and wherein said first beam of laser light is emitted by a first laser, driving a first laser driver for said first beam of laser light at a power output dependent on a frame of a frame counter; and
wherein the reflected light is sensed and converted to an analog signal, said signal passing through a converter which outputs a digital representation to a first image memory for each frame and whereupon completion of each frame, said image memory contains an image; anddisplaying said image.
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Specification