Provided is a fluorescence imaging device comprising: a light source for irradiating a subject with a laser for exciting a fluorescent dye; a condensing lens that receives light from the light source, an endoscopic probe comprising an image fiber and a lens that is disposed on the distal end of the image fiber; a photodetector that detects return light from the subject; and an oscillating element that is connected to the image fiber or the condensing lens and that, upon application of a voltage, causes the image fiber or the condensing lens to oscillate. With this configuration, a lattice pattern of fiber elements, which appears in an image of a subject, can be cancelled in real time by oscillating the oscillating element.

A display assembly includes at least two display devices and two image compensating elements at a junction of every adjacent two display devices. Each display device includes a front surface that is viewed by user. Each front surface defines a display area and a border area. Each image compensating element is on the front surface. Each image compensating element includes a light-incident surface on the display area, a light-emitting surface coupling to the light-incident surface, and a connecting surface coupling between the light-incident surface and the light-emitting surface. Each image compensating element includes a plurality of light guiding channels. Light guiding paths of the light guiding channels extend along a direction from the light-incident surface toward the light-emitting surface.

A bending measurement apparatus includes a first multimode fiber, a wavefront input apparatus, a first wavefront measurement device, and a processor. The wavefront input apparatus inputs a first wavefront to the first multimode fiber as an input wavefront. The first wavefront measurement device measures an output wavefront outputted from the first multimode fiber as a measured wavefront. The processor select correspondence information which corresponds to the measured wavefront. The correspondence information shows a correspondence relationship between the input wavefront and the output wavefront. The processor sets the bending amount corresponding to the selected correspondence information as a current bending amount of the first multimode fiber.

According to one aspect, the invention concerns a device for transporting and controlling light pulses for lensless endo-microscopic imaging and comprises: a bundle of N monomode optical fibers (F.sub.i) arranged in a given pattern, each monomode optical fiber being characterized by a relative group delay value (Ax) defined relative to the travel time of a pulse propagating in a reference monomode optical fiber (F.sub.0) of the bundle of fibers (40), an optical device for controlling group velocity (50) comprising a given number M of waveplates (P.sub.j) characterized by a given delay (8t.sub.j); a first spatial light modulator (51) suitable for forming from an incident light beam a number N of elementary light beams (B.sub.i) each of which is intended to enter into one of said optical fibers, each elementary beam being intended to pass into a given waveplate such that the sum of the delay introduced by said waveplate and the relative group delay of the optical fiber intended to receive said elementary light beam is minimal in absolute value; a second spatial light modulator (52) suitable for deviating each of the N elementary light beams such that each elementary light beam penetrates into the corresponding optical fiber perpendicularly to the entrance face of the optical fiber.

The invention relates to multicore fiber imaging, such as used in endoscopy. Methods are described for processing images captured with such systems to achieve an improved depth of field image or extract 3D information concerning the images, without requiring the addition of additional optical components. One method for generating an image from light received by an imager via a multiplicity of waveguides includes receiving a digital image containing a plurality of pixels, the digital image including a plurality of regions within it wherein each of said regions corresponds to a waveguide core. Each region includes a plurality of pixels, and a first subset of pixels within each region is defined which at least partly correlates with light having been received at a corresponding core in a first spatial arrangement, the subset including less than all of the pixels within a region. A first image is generated from the first subset of pixels from said regions, combined to form an image over the whole waveguide array. The first spatial arrangement may correspond to a measure of angular dimension of the incident light for that region. In addition to increased depth of field, the modified images provided by the invention allow 3D visualisation of objects, eg. using stereographs or depth mapping techniques.

A display assembly includes at least two display devices and two image compensating elements at a junction of every adjacent two display devices. Each display device includes a front surface that is viewed by user. Each front surface defines a display area and a border area. Each image compensating element is on the front surface. Each image compensating element includes a light-incident surface on the display area, a light-emitting surface coupling to the light-incident surface, and a connecting surface coupling between the light-incident surface and the light-emitting surface. Each image compensating element includes a plurality of light guiding channels. Light guiding paths of the light guiding channels extend along a direction from the light-incident surface toward the light-emitting surface.

An optical fiber launcher assembly can include a low precision fiber array that outputs a plurality of optical signals from a given side that are input into an opposing side. The optical fiber launcher assembly can also include a corrective optic aligned with and spaced apart from the low precision fiber array. The plurality of optical signals output from the low precision array to the corrective optic have a given trajectory and optical signals output from the corrective optic have a substantially parallel trajectory different from the given trajectory.

As a result of the size of the detector elements thereof, optoelectronic detectors such as photoelectron multipliers comprising a light-entry region sealed by a protective disc can only be used with much outlay for recording an image of a diffraction-limited focus volume in a two-dimensional spatially resolved manner, even if the image is significantly magnified in relation to the focus volume. The novel detector is intended to enable the spatially resolved detection of point spread functions with little outlay and high accuracy. 2.2 For this purpose, a body made of glass or glass ceramics comprising an opening, in which one end of an optical fiber is arranged, is cemented to the cover disc in such a way that the end of the optical fiber faces the cover disc and the optical axis thereof intersects the light-entry region. Thus, the relative position of optical fiber and entry region can be provided permanently with high accuracy. Preferably, the detector includes a plurality of detection channels, in particular 32 channels, comprising a respective light-entry region and the body includes a plurality of openings comprising a respective optical fiber. 2.3 Fluorescent microscopy.

Provided are an apparatus and method for honeycomb artifacts removal for removing honeycomb artifacts in images received from an optical fiber imaging device through a honeycomb artifact removal model. The honeycomb artifact removal apparatus according to an embodiment includes a control unit configured to create a training dataset, build the honeycomb artifact removal model with the created training data, remove a honeycomb artifact in an input image through the built honeycomb artifact removal model and output a corrected image, wherein the control unit is configured to perform preprocessing of a raw image, acquire a honeycomb artifact image through the optical fiber imaging device, and synthesize the preprocessed raw image with the honeycomb artifact image to generate a honeycomb artifact synthesized image, and the training dataset is created by mapping the honeycomb artifact synthesized image as input data and the preprocessed raw image as output data.