Image projection devices, high-speed fiber scanned displays and related methods for projecting an image onto a surface and interfacing with the projected image are provided. A method for projecting one or more images and obtaining feedback with an optical input-output assembly is provided. The input-output assembly comprising a light-scanning optical fiber and a sensor. The method includes generating a sequence of light in response to one or more image representations and a scan pattern of the optical fiber, articulating the optical fiber in the scan pattern, projecting the sequence of light from the articulated optical fiber, and generating a feedback signal with the sensor in response to reflections of the sequence of light.

Devices, systems, and methods for controlling an intravascular imaging device are provided. For example, in one embodiment a method includes communicating a control signal to an actuator of the intravascular imaging device to cause oscillation of an imaging element of the intravascular imaging device, wherein the intravascular imaging device further includes an acoustic marker; receiving imaging data from the imaging element of the intravascular imaging device; identifying the acoustic marker in the imaging data by determining a correlation between the imaging data and a template representative of the acoustic marker; adjusting an aspect of the control signal based on identifying the acoustic marker; and communicating the adjusted control signal to the actuator of the intravascular imaging device.

This optical scanning method yields a high quality image. An emission end of an optical fiber is displaced two-dimensionally to scan light emitted from the optical fiber, the emission end being displaced with an optical scanning actuator that includes a first driver and a second driver for driving the emission end in different directions. A circular scanning area is scanned by controlling, with a driver controller, a first drive signal supplied to the first driver and a second drive signal supplied to the second driver so as to rotate a scanning pattern of the light while causing the scanning pattern to reciprocate repeatedly in a nearly parallel manner with constant length.

An endoscopic illumination system includes at least two light sources, an illumination system, a multiplexer, at least two detectors, and a light source controller. The multiplexer includes at least two input ports and an emission port. The multiplexer can propagate light that is input from the input ports to the emission port separately or after multiplexing the light. The multiplexer can output a portion of light propagating between the input ports and the emission port. The detectors detect the light propagating between the input ports and the emission port in each wavelength band. The light source controller adjusts the amount of light emitted from the light sources. The amount of light emitted from each light source is thereby appropriately adjusted even when multiple light sources are turned on simultaneously.

In embodiments set forth herein, an intraoral scanner comprises a body, a probe at one end of the body, the probe comprising a scanner head, a wireless communication module disposed within the body, one or more optical sensor, and a touchscreen disposed on the body. The one or more optical sensor is to receive light that enters the scanner head and generate intraoral scan data based on the light, wherein the wireless communication module is to wirelessly send the intraoral scan data to a first computing device. The touchscreen is configured to output a plurality of virtual buttons, detect a touch input associated with a virtual button of the plurality of virtual buttons, and provide a signal associated with the touch input of the virtual button to the first computing device.

According to one aspect, the invention relates to a device (200) for transporting and controlling light beams comprising a light guide (40) comprising a bundle (50) of uncoupled single-mode optical fibers (F.sub.i), each single-mode optical fiber (F.sub.i) being intended to receive an elementary light beam (B.sub.1i) at a proximal end and to emit a light beam (B.sub.2i) at a distal end, said bundle of single-mode optical fibers comprising, in operation, a minimum radius of curvature corresponding to a maximum curvature of the bundle of fibers. The device (200) furthermore comprises an optical device for phase controlling, said device being arranged on the side of the proximal end of the light guide (40) and comprising at least a first spatial light modulator (30) suitable for applying a phase shift to each of the elementary beams (B.sub.1i), and a control unit (60) for controlling the first spatial light modulator, said unit being configured to apply a phase shift to each of the elementary beams (B.sub.1i) so as to form, at the distal end of the light guide, an illumination beam with a predefined phase function. According to the present description, said bundle (50) of single-mode optical fibers is twisted, and comprises a twist period (P) defined to preserve said phase function at the distal end of the light guide when the bundle of single-mode optical fibers is subjected to a curvature lower than said maximum curvature.

An endoscopy system including a flexible insertion tube, a motion sensing device and a processor is provided. The flexible insertion tube has a central axis. The motion sensing device includes a housing, a plurality of patterns and a plurality of sensors. The patterns are disposed at a surface of the flexible insertion tube according to an axial orientation distribution and an angle distribution based on the central axis. During the relative motion of the flexible insertion tube between the motion sensing device via a guiding hole, the sensors sense a motion state of the patterns so as to obtain a motion-state sensing result. The processor determines an insertion depth information and an insertion tube rotating angle information based on the motion-state sensing result, the axial orientation distribution and the angle distribution. A method of reconstructing a three-dimensional structure is also provided.

In certain embodiments, an illuminating endoprobe system includes one or more light sources, a housing, a vitreous visualization fiber, and a general illumination fiber. The light sources generate a visualization light and an illumination light. The housing receives the visualization and illumination light, and has a probe tip with a probe axis. The vitreous visualization fiber transmits the visualization light through the probe tip. The visualization light has a visualization axis and a visualization beam angle at the probe tip. The general illumination fiber transmits the illumination light through the probe tip. The illumination light has an illumination axis and an illumination beam angle at the probe tip. The illumination beam angle is greater than the visualization beam angle, and the illumination axis is at an offset angle relative to the visualization axis, where the offset angle greater than 5 degrees.

Systems and methods disclosed herein include a first scanner comprising an inflatable membrane configured to be inflated with a medium to conform an exterior surface of the inflatable membrane to an interior shape of a cavity, the medium attenuating, at a first rate per unit length, light having a first optical wavelength, and attenuating, at a second rate per unit length, light having a second optical wavelength; an emitter configured to illuminate an interior surface of the inflatable membrane; a detector configured to receive light from the interior surface; a processor configured to generate a first electronic representation of the interior shape based on the received light; and a design computer configured to modify the first electronic representation into a three-dimensional shape by correlating pixels of the first electronic representation with corresponding distance information from the first scanner to the inflatable membrane for each pixel.

A falloposcope intended for use with a hysteroscope to access, image, and collect samples from a patient's fallopian tube includes a cannula having an angled tip oriented to engage a fallopian tube os when the cannula is transcervically introduced to a patient's uterus through the hysteroscope. The catheter has a distal viewing tip configured to be advanced from a distal end of the cannula into the patient's uterus through a cervical os. A viewing chamber has a wide proximal end attached to the distal viewing tip of the catheter, and the viewing chamber is at least partially transparent and typically tapers in a distal direction to provide a clear viewing zone for the endoscope as well as atraumatic advancement into the fallopian tube.