Abstract:
The probe includes a probe body that includes an internal empty space and is configured to be inserted into a coelom; an energy source module that is disposed in the probe body, and configured to emit an energy beam; first and second view windows that are provided at an end portion of the probe body, have different fields of view, and are configured to transmit the emitted energy beam; and a path changing unit that is disposed in the probe body, and configured to change a traveling path of the emitted energy beam to travel to one of the first view window and the second view window.
Abstract:
Disclosed are an optical probe and a medical imaging apparatus which includes the optical probe. The optical probe includes an optical scanner, which includes first and second fluids which have different refractive indexes and are not mixed with each other, and a probe body that is insertable into a coelom, and in which the optical scanner is provided in the probe body. Light which is emitted from the optical scanner is irradiated onto an object via a light output device. An output angle of the light emitted from the optical scanner varies based on a corresponding change in an interface between the first and second fluids.
Abstract:
Provided are an optical switch, an optical probe including the optical switch, and a medical imaging apparatus including the optical probe. The optical probe includes a probe body that is configured to be insertable into a body cavity, and an optical switch that is disposed in the probe body and includes a first region formed of a material having a first refractive index, and a second region that forms an interface with the first region and is configured to have a fluid is introduced into the second region, wherein the optical switch is configured to change a path of propagation of incident light according to a second refractive index of the second region.
Abstract:
Provided is an aperture adjusting apparatus for adjusting an aperture through which light transmits. The aperture adjusting apparatus includes: a chamber configured to have space in which fluid flows, the chamber including a lower channel, an upper channel, and a plurality of reservoir regions connecting the lower channel and the upper channel and each having a non-uniform width crossing a flow direction of a fluid to form a space in which fluid flows; a photo-interceptive first fluid and a photo-transmissive second fluid having a property that the photo-transmissive second fluid does not mix with the first fluid and that are prepared in the chamber; and a first electrode unit in which one or more electrodes to which a voltage is applied are arrayed to form an electric field in the chamber, wherein an aperture through which light transmits is adjusted by a location change of an interface between the first fluid and the second fluid according to the electric field.
Abstract:
A varifocal-type optical scanning probe including an optical fiber scanner and a varifocal lens is provided. The varifocal lens includes: a first membrane lens comprising a first lens surface with a variable curvature and a first pressure surface configured to induce a curvature variation of the first lens surface; a second membrane lens including a second lens surface with a variable curvature and a second pressure surface configured to induce a curvature variation of the second lens surface; a first pressure member disposed to apply a pressure to the first pressure surface; a second pressure member disposed to apply a pressure to the second pressure surface; and a motor configured to transmit a driving force to at least one of the first pressure member and the second pressure member.
Abstract:
The variable liquid device includes: a chamber including a channel, in which a fluid flows, having an inconsistent height in at least a part of the channel; a first fluid filled in the chamber and formed of a non-transmissive material; and a second fluid filled in the chamber and formed of a light transmittable material that does not mix with the first fluid, wherein an aperture, through which light is transmitted, is adjusted according to a variation of an interface between the first fluid and the second fluid.
Abstract:
An aperture adjusting apparatus is provided. The aperture adjusting apparatus includes: a variable part of which an aperture size varies; an optical sensor configured to sense light incident to the variable device part and light output from the variable device part; an aperture calculator configured to calculate a size of an aperture formed in the variable part from light intensity sensed by the optical sensor; and a driving controller configured to control driving of the variable device part by receiving a calculation result fed back from the aperture calculator.
Abstract:
An optical zoom probe is disclosed. The optical zoom probe includes: at least one liquid lens having a focus which is configured to be adjusted according to a flow of a fluid through a flow path; and a barrel provided to form the flow path and including a narrowed first end part including a first opening through which an image is captured, the at least one liquid lens being provided inside the barrel.
Abstract:
Provided are a micro electric liquid device and an apparatus including the device. The micro electric liquid device includes a first fluid that is opaque, a second fluid that is transparent a first channel configured to have the first and second fluid flow therein without mixing, a second channel overlapped and spaced apart from the first channel, wherein the second channel is configured to have the first and second fluids flow therein, and a connection part connecting the first and second channels, wherein an aperture is adjusted by a positional change of an interface between the first and second fluids in the first and second channels, and wherein the second channel includes a first sub channel configured to have the first and second fluids flow therein and having a non-uniform height and a second sub channel configured to have the second fluid to flow therein and having a uniform height.
Abstract:
Exemplary embodiments disclose an optical zoom probe including an aperture adjuster configured to adjust an aperture in which light transmitted by a light transmitter passes, a focus adjuster configured to focus the light passed through the aperture and adjust a focal length to an ultra-close location and a close location, and a filter which includes a center region in which incident light passes without change, and a filter region which surrounds the center region and increases a depth of focus (DOF) of light that is focused on the ultra-close location.