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    • 1. 发明申请
    • SIZE-ADJUSTABLE ELLIPTICAL LASER MARKER
    • 尺寸可调的ELLIPTICAL激光标记
    • US20160178918A1
    • 2016-06-23
    • US14573338
    • 2014-12-17
    • Zhen Tang
    • Zhen Tang
    • G02B27/20
    • G02B27/20G02B26/0883
    • A laser marker/pointer for projecting size-adjustable circular or elliptical laser beam patterns onto a target surface such as a portion of a presentation screen or to assist in the aiming of a firearm, comprises a handheld shell body in which is mounted a laser light source, a rotating wedge prism driven by an electric motor through a belt pulley or a gear system, two convex lenses, a DC power unit, and a mechanical and electric control unit. The rotating wedge prism is placed between the two convex lenses to refract the laser beam into an opening-angle adjustable hollow light cone. The projection of the hollow light cone onto a target surface generates circular or elliptical tracing patterns. The mechanical and electric control unit controls the laser pattern generation and its size adjustment through driving the wedge prism rotation around the emitted laser beam direction and its linear movement along the beam direction. The position of the wedge prism along the original emitted laser direction determines the size of the circular or elliptical pattern. A push button switch controlling the power on and off of the device can be slid in two directions to either enlarge or reduce the size of the generated pattern.
    • 用于将尺寸可调节的圆形或椭圆形激光束图案投影到目标表面(例如呈现屏幕的一部分)上或用于协助瞄准枪支的激光标记/指示器包括手持壳体,其中安装有激光 源,由电动机通过皮带轮或齿轮系驱动的旋转楔形棱镜,两个凸透镜,直流电源单元和机械和电控制单元。 旋转楔形棱镜放置在两个凸透镜之间,以将激光束折射成开角可调节的中空光锥。 中空光锥在目标表面上的投影产生圆形或椭圆形迹线图案。 机械和电气控制单元通过围绕发射的激光束方向驱动楔形棱镜旋转及其沿着光束方向的线性运动来控制激光图案生成及其尺寸调整。 沿着原始发射激光方向的楔形棱镜的位置确定圆形或椭圆形图案的尺寸。 控制装置的电源的按钮开关可以在两个方向上滑动以放大或缩小所生成的图案的尺寸。
    • 7. 发明授权
    • Method for producing polylactic acid block copolymer
    • 聚乳酸嵌段共聚物的制备方法
    • US08211986B2
    • 2012-07-03
    • US12521725
    • 2007-08-10
    • Yuka KomazawaZhen Tang
    • Yuka KomazawaZhen Tang
    • C08G63/91
    • C08G63/08C08L2666/02C08L2666/14C09J153/00
    • It is an object of the present invention to provide a method for producing a polylactic acid block copolymer having high molecular weight, and in lower cost, wherein only a stereo-complex crystal is capable of growing, even when heat melting process is repeated. The present invention relates to a method for producing a polylactic acid block copolymer characterized in that (i) ring-opening polymerization of D-lactide (D component) is carried out in the presence of poly-L-lactic acid (L component), or (ii) ring-opening polymerization of L-lactide (L component) is carried out in the presence of poly-D-lactic acid (D component), and mass ratio of the D component and the L component is the D component/the L component=60/40 to 91/9, or the L component/the D component=60/40 to 91/9.
    • 本发明的目的是提供一种制备具有高分子量的聚乳酸嵌段共聚物的方法,并且即使在重复加热熔融过程时,也只需立体络合物晶体即可生长。 聚乳酸嵌段共聚物的制造方法技术领域本发明涉及聚乳酸嵌段共聚物的制造方法,其特征在于,(I)D-乳酸(D成分)的开环聚合在聚-L-乳酸(L成分)的存在下进行, 或(ii)在聚-D-乳酸(D成分)的存在下进行L-丙交酯(L成分)的开环聚合,D成分和L成分的质量比为D成分/ L成分= 60/40〜91/9,L成分/ D成分= 60/40〜91/9。
    • 8. 发明授权
    • Size-adjustable elliptical laser marker
    • 尺寸可调的椭圆激光打标机
    • US09507157B2
    • 2016-11-29
    • US14573338
    • 2014-12-17
    • Zhen Tang
    • Zhen Tang
    • G02B27/20G02B26/08
    • G02B27/20G02B26/0883
    • A laser marker/pointer for projecting size-adjustable circular or elliptical laser beam patterns onto a target surface such as a portion of a presentation screen or to assist in the aiming of a firearm, comprises a handheld shell body in which is mounted a laser light source, a rotating wedge prism driven by an electric motor through a belt pulley or a gear system, two convex lenses, a DC power unit, and a mechanical and electric control unit. The rotating wedge prism is placed between the two convex lenses to refract the laser beam into an opening-angle adjustable hollow light cone. The projection of the hollow light cone onto a target surface generates circular or elliptical tracing patterns. The mechanical and electric control unit controls the laser pattern generation and its size adjustment through driving the wedge prism rotation around the emitted laser beam direction and its linear movement along the beam direction. The position of the wedge prism along the original emitted laser direction determines the size of the circular or elliptical pattern. A push button switch controlling the power on and off of the device can be slid in two directions to either enlarge or reduce the size of the generated pattern.
    • 用于将尺寸可调节的圆形或椭圆形激光束图案投影到目标表面(例如呈现屏幕的一部分)上或用于协助瞄准枪支的激光标记/指示器包括手持壳体,其中安装有激光 源,由电动机通过皮带轮或齿轮系驱动的旋转楔形棱镜,两个凸透镜,直流电源单元和机械和电控制单元。 旋转楔形棱镜放置在两个凸透镜之间,以将激光束折射成开角可调节的中空光锥。 中空光锥在目标表面上的投影产生圆形或椭圆形迹线图案。 机械和电气控制单元通过围绕发射的激光束方向驱动楔形棱镜旋转及其沿着光束方向的线性运动来控制激光图案生成及其尺寸调整。 沿着原始发射激光方向的楔形棱镜的位置确定圆形或椭圆形图案的尺寸。 控制装置的电源的按钮开关可以在两个方向上滑动以放大或缩小所生成的图案的尺寸。
    • 9. 发明申请
    • LASER MARKER
    • 激光标记
    • US20140340725A1
    • 2014-11-20
    • US13894630
    • 2013-05-15
    • Zhen Tang
    • Zhen Tang
    • G02B26/08G02B27/20
    • G02B27/20G02B26/105H01S5/0071H01S5/02H01S5/042
    • A laser marker/pointer for projecting circular or elliptical laser beam patterns onto a target surface such as a portion of a presentation screen or to assist in the aiming of a firearm, comprises a handheld shell body in which is mounted a laser light source, a rotating optical mirror driven by a motor, and an electronic drive circuit, whereby the aspect ratio of the marking pattern is determined by the geometric relationship of the motor shaft axis, the laser beam, and the mirror surface. The motor drive circuit when initially powered (along with the laser diode), applies full power (a continuous DC voltage to the motor to overcome inertia), followed by a pulsed voltage to lower the duty cycle of the motor, increase battery life, and reduce rotational noise.
    • 用于将圆形或椭圆形激光束图案投影到诸如呈现屏幕的一部分的目标表面上或用于帮助瞄准枪械的激光标记/指示器包括手持壳体,其中安装有激光光源, 由电动机驱动的旋转光学反射镜和电子驱动电路,由此通过电机轴轴,激光束和镜面的几何关系来确定标记图案的纵横比。 最初供电时的电机驱动电路(与激光二极管一起),将全功率(连续的直流电压施加到电机以克服惯性),然后施加脉冲电压以降低电机的占空比,延长电池寿命,以及 降低旋转噪音。