Imaging using near-infrared laser diodes with distributed bragg reflectors

A smart phone or tablet, comprising:

• a first part comprising a first at least one of a plurality of laser diodes, the first at least one of the plurality of laser diodes configured to be pulsed;
• a second part comprising a second at least one of the plurality of laser diodes;
• the plurality of laser diodes configured to generate light having one or more optical wavelengths, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers, and wherein at least a portion of the plurality of laser diodes comprises one or more Bragg reflectors;
• at least a portion of light from the plurality of laser diodes directed to tissue comprising skin;
• an array of laser diodes configured to generate light having one or more optical wavelengths, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers, and wherein at least a portion of the array of laser diodes comprises one or more Bragg reflectors
• the light generated by the array of laser diodes being formed into a plurality of spots on the tissue;
• a first receiver comprising one or more detectors;
• the first receiver configured to receive at least a portion of light reflected from the tissue from the first at least one of the plurality of laser diodes;
• an infrared camera configured to receive at least a portion of the light from the second at least one of the plurality of laser diodes reflected from the tissue, wherein the infrared camera generates data based at least in part on the received light;
• wherein the smart phone or tablet is configured to generate a two-dimensional or three-dimensional image using at least part of the data from the infrared camera;
• and
• the smart phone or tablet further comprising a wireless receiver, a wireless transmitter, a display, a voice input module, and a speaker.

A smart phone or tablet, comprising:

• a first at least one of a plurality of laser diodes, the first at least one of the plurality of laser diodes configured to be pulsed;
• a second at least one of the plurality of laser diodes, the second at least one of the plurality of laser diodes also configured to be pulsed;
• the plurality of laser diodes configured to generate light having one or more optical wavelengths, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers, and wherein at least a portion of the plurality of laser diodes comprises one or more distributed Bragg reflectors;
• at least a portion of light from the plurality of laser diodes directed to tissue comprising skin;
• an array of laser diodes configured to generate light having one or more optical wavelengths, wherein at least a portion of the one or more optical wavelengths is a near-infrared wavelength between 700 nanometers and 2500 nanometers, and wherein at least a portion of the array of laser diodes comprises one or more distributed Bragg reflectors;
• at least a portion of the light generated by the array of laser diodes formed into a plurality of spots directed to the tissue;
• a first receiver comprising one or more detectors;
• the first receiver configured to receive at least a portion of light reflected from the tissue from the first at least one of the plurality of laser diodes, wherein the first receiver is configured to perform a time-of-flight measurement by measuring a time difference between the generated light from the first at least one of the plurality of laser diodes and light reflected from the tissue from the first at least one of the plurality of laser diodes, and wherein the first receiver further comprises one or more filters in front of the one or more detectors to select a fraction of the one or more optical wavelengths;
• an infrared camera configured to receive at least a portion of the light from the second at least one of the plurality of laser diodes reflected from the tissue, wherein the infrared camera generates data based at least in part on the received light;
• wherein the smart phone or tablet is configured to receive and process at least a portion of the time-of-flight measurement, and to generate a two-dimensional or three-dimensional image using at least part of the data from the infrared camera.