1368 results about "Optical fiber bundle" patented technology

Disclosed is an optical printed circuit board (PCB) having a multi-channel optical waveguide, which comprises: an optical waveguide having an optical path for transmitting light beams; a groove for penetrating the optical waveguide; and an optical interconnection block inserted in the groove and connected to the optical waveguide to transmit the light beams, wherein the optical interconnection block includes an optical fiber bundle bent by the angle of 90°. The optical interconnection block connects a plurality of multi-layered optical waveguides to transmit light beams to the optical waveguides. The optical fiber bundle is installed as a medium of the multi-channel optical waveguide in the optical PCB.

The present invention includes an apparatus for combining a water barrier fluid to a bundle of optical fibers including an entrance die having an orifice which is dimensioned to allow for a bundle of optical fibers to be drawn therethrough. Also, an exit die having an orifice is provided. The entrance die and the exit die, respectively, have inner sides which define a cavity. The cavity is in fluid communication with the orifice of the entrance die and the orifice of the exit die, such that a gap is formed at a meeting point between the cavity and the respective orifices of the entrance and the exit die. The gap is radially surrounded by an extension of the cavity to define a critical flow region. A plurality of baffles are formed in the exit die which are operative to inject fluid into the cavity. Also provided is a main body which supports the entrance die and the exit die. The main body includes a passageway that is in fluid communication with the plurality of baffles. A retaining ring is included which secures the entrance die and the exit die to the main body.

Disclosed is a pen-shaped optical mouse. The optical mouse has an optical fiber on the optical path of illuminating light, and an optical fiber bundle on the optical path of reflected light, respectively. The optical system of the optical mouse is realized irrespective of the optical paths and their lengths, showing a good image-transmitting feature to transmit good image to an image sensor. An image is input to the image sensor through an end of an optical tip where the image directly contacts a reflecting surface, which enhances the accuracy of the pen-shaped optical mouse since there is no change in the location of a mouse pointer or a focal length in spite of the change in the angle between the pen-shaped optical mouse and the reflecting surface.

A fiber-optic bundle based optical coherence tomography (OCT) probe method is demonstrated in a multimode optical fiber bundle based OCT system. The system can achieve a lateral resolution of 12 μm and an axial resolution of 10 μm using a super-luminescent diode source. This imaging approach eliminates any moving parts in the probe and has a primary advantage for use in extremely compact and safe OCT endoscopes to image internal organs and great potential to be combined with confocal endoscopic microscopy.

The invention provides an optical-scanning examination apparatus with a simple configuration, in which the resolution of acquired images can be freely changed and in which the fluorescence image intensity and examination depth can be adjusted to suit the purpose of examination. The optical-scanning examination apparatus includes a light source unit; a focusing lens for forming a first intermediate image of excitation light; an imaging lens; a first objective lens; an optical fiber bundle; a second objective lens; and an imaging unit for imaging return light that returns via the second objective lens, the optical fiber bundle, the first objective lens, and the imaging lens. In addition, a scanning mirror device, which is disposed at the first intermediate image position, is formed of a plurality of mirrors that simultaneously receive the first intermediate image and that can be selectively turned on and off.

A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, in which the plurality of locations together are arranged in a substantially axial direction between the ends of the at least one shaft. The system further includes an array of high-temperature bifurcated fiber bundle based reflectance probes to receive reflectance signals from the shaft surface and send to an array of photosensitive detectors, configured to detect dynamic light reflected from the at least one turbomachinery system shaft surface in response to the transmitted light during rotation of at least one turbomachinery system shaft and generate dynamic reflected light signals there from. A sensing mechanism is configured to determine a torque or vibration on at least one turbomachinery system shaft in response to the dynamic reflected light signal signatures based on time-domain and frequency-domain signal processes.

Laser for thermal shrinkage of soft tissue of uvula, soft palate, nasal turbinate or tongue base for the treatment of snoring, nasal obstruction or sleep apnea are disclosed. The preferred laser includes infrared laser about 0.7 to 1.85 micron, pulse duration about 100 microsecond to 5 seconds, spot size of about 2 to 5 mm and power of about 2 to 20 W at the treated area. The laser energy is delivered to the treated area by an optical fiber and a hand piece to cause a localized temperature about 65 to 85 degree Celsius for sufficient shrinkage of the treated soft tissues. Optical fiber bundles to produce high-power diode laser output or multi-wavelength are also disclosed.

An image processing method for image transmission system includes two parts: scaling and real measuring, which can restore and restructure real image by processing the disorder image information of the object to be measured. An optical fibre endoscope designed by said method is composed of light delivering unit and image transmission unit. Said light delivering unit consists of light source, coupling lens and optical fibres. Said image transmission unit consists of optical fibres, eyepiece, CCD camera, image acquiring and processing unit and monitor. Its advantages are simple structure, simplified process for preparing optical fibres, and low cost.

An endoscope includes an elongated tube. An objective lens system is disposed in the elongated tube, for passing image light from an object. A fiber optic image guide includes plural optical fibers bundled together, has a distal tip, is inserted through the elongated tube, for transmitting the image light focused on the distal tip by the objective lens system in a proximal direction. A displacing device displaces the distal tip laterally and periodically upon receiving entry of the image light being focused by use of a piezoelectric actuator positioned outside the distal tip. Plural shifted images are created by the fine displacement, and registered together by image registration, and combined as a synthesized image of up-sampling. Preferably, an evaluator retrieves information of relative position, which is used for error correction of the shifted images.

The invention provides a photoelectric sensor. The photoelectric sensor comprises a light-sensitive structure, an optical fiber guide plate positioned above the light-sensitive structure, and a backlight positioned below the light-sensitive structure, wherein the light-sensitive structure comprises a substrate and a plurality of pixel units positioned in the substrate; each pixel unit comprises a thin film transistor and a photodiode; the optical fiber guide plate comprises a plurality of optical fiber bundles arranged perpendicular to the direction of the substrate; the aperture of the optical fiber bundles is less than or equal to the width of the pixel units; and the light emitted from the backlight penetrates through the light-sensitive structure and the optical fiber guide plate. The optical fiber guide plate of the photoelectric sensor enables each pixel unit to be capable of more independently detecting the body surface characteristics in the corresponding area above the pixel unit, so that the binding character on reflection rays is improved and the resolution ratio of the photoelectric sensor is increased; and in addition, the optical fiber guide plate comprises the multiple optical fiber bundles arranged perpendicularly, so that the volume of the photoelectric sensor is smaller.

The invention relates to an optical fiber near-infrared spectrometer in the technical field of medical devices. The optical fiber near-infrared spectrometer uses multi-tail optical fiber collimator as light source optical fiber, uses a number lock technology as a technical scheme for weak signal extraction, uses a laser diode with a PD as a light source for sinusoidal modulation, uses an avalanche photodiode (APD) or photomultiplier tube (PMT) as a detector, and uses thick core-diameter plastic optical fiber, liquid-core optical fiber, silica optical fiber, a silica optical fiber bundle or glass optical fiber bundle as detection optical fiber. The invention has the advantages that the instrument can conduct nondestructive real-time hemodynamic parameter detection to biological tissues sheltered by hairs, the noise level of the instrument is low, the time resolution is high, the stability is high, the price is cheap, the hardware circuit design is greatly simplified and the portability of the instrument is realized.