Frequency-doubling crystal dustproof structure and ultraviolet laser
A frequency-doubling crystal, dust-proof structure technology, applied in the field of ultraviolet lasers, can solve problems such as damage to optical components
Active Publication Date: 2017-07-21
福州紫凤光电科技有限公司
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Problems solved by technology
[0003]
The technical problem to be solved by the present invention is to provide a frequency doubling crystal dust-proof structure and an ultraviolet laser to solve the technical problem of damage to optical elements caused by dust particles in the prior art
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[0020] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
[0021] As the first embodiment of the present invention, a dust-proof structure of frequency doubling crystal is proposed, such as figure 1 As shown, including: dust guide part 1 and dust outflow part 2, such as figure 1 , 2 As shown, the dust guiding part 1 is two magnets arranged opposite to each other, and what the magnets in this embodiment adopt are permanent magnets, such as figure 2 As shown, the permanent magnet includes an upper magnet 101 and a lower magnet...
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The invention discloses a frequency-doubling crystal dustproof structure and an ultraviolet laser. The frequency-doubling crystal dustproof structure relates to the field of ultraviolet lasers. The frequency-doubling crystal dustproof structure comprises a dust guiding portion and a dust outflow portion, dust diversion channels are arranged between the dust guiding portion and a dust outflow portion, the dust guiding portion comprises a plurality of magnets which can generate a parallel magnetic field and are arranged oppositely, one end of each magnet is circular arc-shaped, one end of the dust outflow portion is concave arc-shaped, and concave arcs of the dust outflow portion face the circular arcs of the magnets to form the dust diversion channels. According to the technical scheme, by arranging the frequency-doubling crystal dustproof structure in the laser and by arranging the parallel magnetic field and the diversion structure, dust particles can be driven by the parallel magnetic field to moves towards the magnetic pole direction and can be discharged out of the laser by means of the diversion structure, the dust particles do not impact and adhere to an optical device, the stability of the optical device is guaranteed, and the service life is prolonged.
Description
technical field [0001] The invention relates to the field of ultraviolet lasers, in particular to a frequency doubling crystal dustproof structure and an ultraviolet laser. Background technique [0002] In the laser cavity, because some parts of the laser will age with time and radiation, some dust particles will be generated, which are suspended inside the cavity, such as the circuit board in the cavity, desiccant, glue volatiles, etc. When it is not lit, the dust particles are only in a disorderly diffusion movement. Due to the small relative concentration and small diameter of the dust particles, it is difficult to adsorb on the laser optics, and the relative harm is relatively small. Under the action of electric field and magnetic field, it is immediately magnetized, and the original dust particles become polarized particles similar to small magnets, which generate mutual attraction or repulsion force, and finally form larger particles by embracing head to tail. And the...
Claims
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Login to View More IPC IPC(8): H01S3/02H01S3/109
CPCH01S3/025H01S3/109
Inventor 刘承勇陈化慧邓小春刘承慧
Owner 福州紫凤光电科技有限公司