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    • 3. 发明授权
    • Laser oscillating apparatus and method of driving laser beam source
    • 激光振荡装置及激光束源的驱动方法
    • US5825798A
    • 1998-10-20
    • US650730
    • 1996-05-20
    • Masayuki MomiuchiHiroshi KoizumiMasahiro OhishiYoshiaki GotoFumio Ohtomo
    • Masayuki MomiuchiHiroshi KoizumiMasahiro OhishiYoshiaki GotoFumio Ohtomo
    • H01S3/0941H01S3/102H01S3/109H01S5/062H01S3/091H01S3/094
    • H01S3/09415H01S3/102H01S3/109H01S5/06216
    • The present invention relates to a laser oscillating apparatus using a semiconductor laser or the like and a method of driving a laser beam source. The present invention relates particularly to a laser oscillating apparatus or the like having a nonlinear optical medium for generating a second harmonic and capable of by-pulse driving a laser beam source with high efficiency. In the laser oscillating apparatus, a optical resonator is composed of at least a laser crystal and an output mirror. The nonlinear optical medium for generating the second harmonic is inserted into the optical resonator. The laser beam source can effect pumping on the optical resonator so that the period T of a drive pulse produced from a pulse driving means satisfies a relation in .tau..sub.FL >T-.tau. with respect to .tau..sub.FL (fluorescence lifetime). Further, a first pulse can drive the laser beam source with the degree of not leading to the emission of a laser beam and a second pulse can drive the laser beam source so that the laser beam source produces the laser beam.
    • 本发明涉及使用半导体激光器等的激光振荡装置和驱动激光束源的方法。 本发明具体涉及具有用于产生二次谐波的非线性光学介质的激光振荡装置等,能够以高效率对激光束源进行逐脉冲驱动。 在激光振荡装置中,光谐振器至少由激光晶体和输出镜构成。 用于产生二次谐波的非线性光学介质被插入到光学谐振器中。 激光束源可以在光谐振器上实现泵浦,使得从脉冲驱动装置产生的驱动脉冲的周期T满足关于tau FL(荧光寿命)的τFL> T-tau的关系。 此外,第一脉冲可以以不导致激光束的发射的程度驱动激光束源,并且第二脉冲可以驱动激光束源,使得激光束源产生激光束。
    • 8. 发明授权
    • Rotating laser beam irradiating apparatus
    • 旋转激光束照射装置
    • US5909455A
    • 1999-06-01
    • US19285
    • 1998-02-05
    • Fumio OhtomoHiroshi KoizumiMasayuki MomiuchiMasahiro OhishiYoshiaki Goto
    • Fumio OhtomoHiroshi KoizumiMasayuki MomiuchiMasahiro OhishiYoshiaki Goto
    • G01C15/00G02B26/10H01S5/06H01S3/10
    • G02B26/10
    • The present invention relates to a rotating laser beam irradiating apparatus, and more particularly to a rotating laser beam irradiating apparatus which, by synchronizing an emission timing of a pulse laser with a rotation of an irradiating means, makes it possible to describe intermittent dot-shaped marks, to tremendously increase a visual recognition distance, and to enlarge a work area; wherein a pulse driving means drives a pulse laser light source, and an irradiating means irradiates an irradiated object with a pulse laser light beam from the pulse laser light source, and a rotation driving means rotates the irradiating means, and a rotation detecting means detects the rotation of the irradiating means, and an arithmetic processing means, in accordance with a driving timing from the pulse driving means and a detection signal from the rotation detecting means, controls the rotation driving means to synchronize an emission timing of the pulse laser with the rotation of the irradiating means.
    • 旋转激光束照射装置技术领域本发明涉及一种旋转激光束照射装置,更具体地涉及一种旋转激光束照射装置,其通过使脉冲激光器的发射定时与照射装置的旋转同步,使得可以描述间歇点状 标志,大大增加视觉识别距离,扩大工作面积; 其中脉冲驱动装置驱动脉冲激光光源,照射装置用来自脉冲激光光源的脉冲激光照射被照射物体,旋转驱动装置使照射装置旋转,旋转检测装置检测 照射装置的旋转和运算处理装置根据来自脉冲驱动装置的驱动定时和来自旋转检测装置的检测信号控制旋转驱动装置,以使脉冲激光器的发射定时与旋转 的照射装置。