Single-fiber scanning probe
A scanning probe and single-fiber technology, which is applied to the optical fiber scanning imaging of endoscopes, in the field of optical fibers, can solve the problems of thickening the endoscope, increasing the diameter of the endoscope, and difficulty in reducing the size of the endoscope, and achieve high image quality. Effect
Inactive Publication Date: 2019-05-24
杭州菲柏斯科技有限公司
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Problems solved by technology
For light reception, fiber optic bundles are mostly used at present, which inevitably increases the diameter of the endoscope and makes it difficult to reduce the size of the endoscope
[0004] For this reason, the present invention proposes a single-fiber scanning probe, which not only avoids the thickening of the endoscope caused by adopting multi-capacity fiber optic bundles to improve resolution, but also can be integrated with a single-fiber scanning vibration device on a single module Realize the convenient application of the probe in the field of endoscopy
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[0021] Attached below image 3 A single-fiber scanning probe described in the present invention and its usage are further described in detail.
[0022] A single optical fiber scanning probe, the specific structure is as follows: the insulator tube 1 used is an alumina tube, the radius of the alumina tube is 2.5 mm, the inner and outer surfaces of the piezoelectric ceramic tube 4 covered with metal electrodes has a radius of 0.5 mm, and the piezoelectric ceramic tube 4 The material used is lead zirconate titanate. The vibrating optical fiber 3 passes through the axis of the piezoelectric ceramic tube 4 and is fixed with UV-curable glue. The piezoelectric ceramic tube 4 passes through the center of the alumina tube. The distance between the top of the piezoelectric ceramic tube and the top of the alumina tube is 15mm, the distance between the top of the vibration fiber and the top of the piezoelectric ceramic tube is 3mm, and the distance between the top of the piezoelectric c...
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Abstract
A single-fiber scanning probe comprises an insulator tube (1), a vibration optical fiber (3), a piezoelectric ceramic tube (4) and a plurality of receiving optical fibers. The vibration optical fiber(3) penetrates the axis of the piezoelectric ceramic tube (4), with inner and outer sides covered with metal electrodes, and is fixed by an adhesive material (5), the piezoelectric ceramic tube (4) penetrates the axis of the insulator tube (1), and the receiving optical fibers are uniformly distributed on a circle in a radius R2 relative to the axis of the insulator tube (1). In operation, after voltage loading, the piezoelectric ceramic tube vibrates to drive the vibration optical fiber to vibrate to form scanning light spots, and the scanning light spots are received by the receiving opticalfibers to form an image through reconstruction. The single-fiber scanning probe has advantages that the size of an endoscope can be further reduced on the premise of guarantee of high resolution, andminiaturization of high-resolution endoscopes is benefited.
Description
technical field [0001] A single optical fiber scanning probe belongs to the field of optical fibers, in particular to the field of optical fiber scanning imaging that can be used in endoscopes. Background technique [0002] Optical fiber is an important optical waveguide device. Using optical fiber to guide the light emitted by the light source or collecting image information at the end of the optical fiber is two important aspects of optical fiber applications, such as medical endoscope systems and laser projection systems. Usually the complete fiber core diameter ranges from tens of microns to hundreds of microns. In order to form a light source exit surface or image collection end with a certain size, the form of fiber bundles is mostly used to expand the area of the fiber end face, thereby increasing the information collection surface. This optical fiber application method is difficult to fully utilize the advantages of the optical fiber, not only the formed end faces ...
Claims
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IPC IPC(8): G02B26/10
Inventor 孟彦龙李裔裘燕青
Owner 杭州菲柏斯科技有限公司