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    • 3. 发明授权
    • 레이저 간섭계를 이용한 3차원 형상 검사장치
    • 3尺寸图像测量装置使用激光干涉仪
    • KR101527764B1
    • 2015-06-11
    • KR20150021175
    • 2015-02-11
    • NEXSTAR TECHNOLOGY CO LTD
    • KIM JEONG DUCK
    • G01B9/02G01B11/24
    • G01B9/02096G01B9/02082G01B11/2441
    • 본발명은레이저간섭계를이용한 3차원형상검사장치에관한것으로, 제1 및제2 레이저간섭계(10a, 10b)는광경로차가λ/4 씩순차로커지는간섭무늬를발생시켜서로다른위치에서검사대상체(101)에조사한다. 검사부(20)는제1 및제2 레이저간섭계(10a, 10b)에서발생된광경로차가λ/4 씩순차로커지는간섭무늬가검사대상체(101)에반사되어발생되는간섭무늬영상을획득하여메인영상처리부(30)로출력한다. 메인영상처리부(30)는검사부(20)에서입력되는광경로차가λ/4 씩순차로커지는간섭무늬영상을위상처리기법으로처리하여검사대상체(101)의 3차원형상을획득하여검사하도록구성됨으로써정밀도와노이즈에대한저항력이좋은 3차원형상을얻을수 있다.
    • 本发明涉及使用激光干涉仪的三维形状检查装置。 第一和第二激光干涉仪(10a,10b)通过产生其中光程差依次增加λ/ 4的干涉图案将检查对象(101)照射在不同位置。 检查部件(20)通过获得通过反射干涉图案而产生的干涉图案图像,将干涉图案图像输出到主图像处理部分,其中光路差依次增加λ/ 4,并从第一 和检查对象(101)中的第二激光干涉仪(10a,10b)。 主图像处理部(30)通过处理光程差依次增加λ/ 4的干涉图案,并从检查部(20)输入的干涉图案,通过处理检查对象(101)的三维形状, 相位处理方法。 因此,可以获得具有优异的精度和抗噪声的三维形状。
    • 6. 发明公开
    • 다파장 간섭계를 포함하는 계측 장치
    • 包括多波长干涉仪的测量装置
    • KR1020130069474A
    • 2013-06-26
    • KR1020120145940
    • 2012-12-14
    • 캐논 가부시끼가이샤
    • 하타다아키히로구라모토요시유키
    • G01B9/02
    • G01B9/02096G01B9/02002G01B9/02007G01B9/02027G01B9/02061G01B9/02067G01B9/02068G01B9/02082G01B11/2441G01B2290/45G01B2290/50G01B2290/70G01B9/02
    • PURPOSE: A measuring device with a multi-wavelength interferometer is provided to measure an object by using a measurement result after measuring a position or a shape of a target surface, thereby enabling to process the target surface to have a desired surface shape coinciding with design. CONSTITUTION: A measuring device with a multi-wavelength interferometer comprises a control unit(7). The multi-wavelength interferometer utilizes a plurality of fluxes which frequencies are different. The control unit obtains a position and a shape of a target object by using coherent light signals detected by the multi-wavelength interferometer. The multi-wavelength interferometer includes an optical system, a spectral unit(18), and optical members(21a,21b). The optical system makes target lights and reference lights which are incident into the target surface and reflected by the target surface coherent each other. The spectral unit splits the coherent lights of the target lights and the reference lights into each wavelength. [Reference numerals] (AA) Surface to inspected
    • 目的:提供具有多波长干涉仪的测量装置,通过在测量目标表面的位置或形状之后使用测量结果来测量物体,从而能够将目标表面处理成具有与设计一致的期望的表面形状 。 构成:具有多波长干涉仪的测量装置包括一个控制单元(7)。 多波长干涉仪利用频率不同的多个通量。 控制单元通过使用由多波长干涉仪检测出的相干光信号来获得目标物体的位置和形状。 多波长干涉仪包括光学系统,光谱单元(18)和光学构件(21a,21b)。 光学系统使入射到目标表面并被目标表面反射的目标光和参考光相互相干。 光谱单元将目标光和参考光的相干光分为每个波长。 (附图标记)(AA)要检查的表面
    • 7. 发明公开
    • 다파장 간섭계, 측정 장치, 및 측정 방법
    • 多波长干涉仪,测量装置和测量方法
    • KR1020130045189A
    • 2013-05-03
    • KR1020120117694
    • 2012-10-23
    • 캐논 가부시끼가이샤
    • 야마다아키히로
    • G01B9/02
    • G01B9/02007G01B9/02002G01B9/02061G01B9/02067G01B9/0207G01B9/02082G01B2290/45G01B2290/50G01B2290/70
    • PURPOSE: A multi-wavelength interferometer, a measuring device, and a measuring method are provided to obtain the multi-wavelength interferometer which does not decrease measurement accuracy even though a measurement surface is tilted. CONSTITUTION: A multi-wavelength interferometer comprises beam splitters(12,13), a frequency shifter(9), an optical system, a dividing unit, and a detection unit. The beam splitters spit light fluxes into reference beams and measurement beams. The frequency shifter shifts frequencies of the reference beams or measurement beams or makes the frequencies of the reference beams and measurement beams different by shifting the frequencies of the reference beams and measurement beams. The optical system makes the measurement beams incident into the measurement surface and the measurement beams reflected by the measurement surface coherent with the reference beams, thereby obtaining coherent lights. The dividing unit divides the coherent beams into a plurality of optical beams. The detection unit detects the optical beams divided into the dividing unit per each wavelength. [Reference numerals] (23) Computing device; (7) Laser control unit; (9) Frequency shifter; (AA) Measurement surface
    • 目的:提供多波长干涉仪,测量装置和测量方法以获得即使测量表面倾斜也不降低测量精度的多波长干涉仪。 构成:多波长干涉仪包括分束器(12,13),变频器(9),光学系统,分割单元和检测单元。 分束器将光束喷射到参考光束和测量光束中。 移相器移动参考光束或测量光束的频率,或通过移动参考光束和测量光束的频率使得参考光束和测量光束的频率不同。 光学系统使测量光束入射到测量表面,并且由测量表面反射的测量光束与参考光束相干,从而获得相干光。 分割单元将相干光束分为多个光束。 检测单元检测每个波长分割成分割单元的光束。 (附图标记)(23)计算装置; (7)激光控制单元; (9)变频器; (AA)测量面