One-dimensional optical scanner
An optical scanner and optical lens technology, applied in the field of optical scanning, can solve the problems of poor reliability, uneven distribution of scanning points, and immaturity, and achieve uniform distribution of scanning points, high line scanning frequency, and dense collection points. Effect
Inactive Publication Date: 2014-02-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
Although the non-mechanical scanning method has the advantages of no inertia, the existing non-mechanical scanning methods have their own shortcomings and are not mature.
[0003] The galvanometer scanning method can flexibly adjust the field of view, but due to the uneven stepping of the galvanometer swing, the reliability will deteriorate, and the distribution of scanning points will be uneven
The structure of the rotary drum scanning method is relatively simple, and the stability and reliability of the equipment are relatively good. It is suitable for high-speed line scanning. The disadvantage is that the load is heavy, easy to wear, and frequent calibration is required.
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[0017] The present invention will be further described below in conjunction with specific embodiments.
[0018] Such as figure 1 , Figure 2 and image 3 As shown, it is a one-dimensional optical scanner, which includes a rotating motor 1, an optical fiber arrangement structure 2, an optical lens 3, a first laser 41, a second laser 42, a first converging lens 51, a second converging lens 52, a first A transmitting mirror 61, a second transmitting mirror 62, a first detector 71, a second detector 72, a collimator lens 8 and an optical fiber 9, and the optical fiber arrangement structure 2 includes a rotating body 21, a positioning structure 22 and a fastener 23 The positioning structure 22 is located between the rotating body 21 and the fastener 23, and the rotating body 21 is embedded in the fastener 23 to compress and fix the positioning structure 22 to form a columnar optical fiber arrangement structure 2. The direction indicated by the arrow in the figure indicates the pro...
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The invention relates to a one-dimensional optical scanner. The one-dimensional optical scanner comprises a rotary motor, an optical fiber arrangement structure and an optical lens and is characterized in that: the optical fiber arrangement structure comprises a revolution body, a positioning structure and a fastening piece; the positioning structure is positioned between the revolution body and the fastening piece; the revolution body is embedded into the fastening piece to tightly press and fix the positioning structure so as to form the cylindrical optical fiber arrangement structure; the end face of the revolution body, which is opposite to the rotary motor is an end face A; and the end face of the positioning structure, which is opposite to the optical lens is an end face B. The one-dimensional optical scanner has the advantages that: a high line scanning frequency can be obtained by optical fiber scanning, the acquisition points are intensive, the scanning points are distributed uniformly, and the structure is simple and is easy to miniaturize.
Description
technical field [0001] The invention relates to optical scanning technology, mainly to the scanning technology of laser imaging radar. Background technique [0002] Optical scanning technology is one of the key technologies of scanning laser imaging radar. Most of the existing laser imaging radars still use scanning imaging. The optical scanning methods that have appeared include non-mechanical scanning such as electro-optic scanning, acousto-optic scanning, and optical phased array scanning, as well as mechanical scanning methods such as binary optical scanning, grating scanning, optical fiber scanning, drum scanning, and vibrating mirror scanning. Although the non-mechanical scanning method has advantages such as no inertia, the existing non-mechanical scanning methods have their own shortcomings and are not mature enough. [0003] The galvanometer scanning method can flexibly adjust the field of view angle, but because the oscillating step of the galvanometer is uneven, ...
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IPC IPC(8): G02B26/10
Inventor 彭仁军高建双
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA