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    • 3. 发明授权
    • Lens meter
    • 镜头表
    • US06236453B1
    • 2001-05-22
    • US09313663
    • 1999-05-18
    • Yukio IkezawaEiichi YanagiYasufumi FukumaTakeyuki Kato
    • Yukio IkezawaEiichi YanagiYasufumi FukumaTakeyuki Kato
    • G01B900
    • G01M11/0235
    • A lens meter is provided which comprises a light source for generation of a measuring light beam and a pattern forming plate provided in an optical path of the measuring light beam. The pattern forming plate has a central pattern for measuring lens characteristics of a narrow area on an eyeglass lens and a plurality of peripheral patterns for measuring lens characteristics of a wide area on the eyeglass lens. The pattern forming plate can be switched between a normal measuring mode which receives the image of the central pattern based on the measuring light beam transmitted through the narrow area of the eyeglass lens and also measures the narrow area alone and displays the measured values and a wide-area measuring mode which receives a great number of images of the peripheral patterns based on the measuring light beam transmitted through the wide area of the eyeglass lens and also measures the wide area and performs mapping display.
    • 提供一种透镜计,其包括用于产生测量光束的光源和设置在测量光束的光路中的图案形成板。 图案形成板具有用于测量眼镜镜片上的窄区域的透镜特性的中心图案和用于测量眼镜镜片上的广泛区域的透镜特性的多个外围图案。 图案形成板可以在基于透过​​眼镜镜片的狭窄区域的测量光束接收中心图案的图像的正常测量模式之间切换,并且还单独测量窄区域并显示测量值和宽 - 测量模式,其基于通过眼镜透镜的广泛区域传输的测量光束接收大量的外围图案的图像,并且还测量广域并执行映射显示。
    • 4. 发明授权
    • Lens meter
    • 镜头表
    • US6061123A
    • 2000-05-09
    • US937182
    • 1997-09-29
    • Yukio IkezawaEiichi YanagiYasufumi FukumaTakeyuki Kato
    • Yukio IkezawaEiichi YanagiYasufumi FukumaTakeyuki Kato
    • G01M11/02G01B9/00
    • G01M11/0235
    • A lens meter is provided in which a measurement light beam emitted from a light source (21) is projected onto a lens (L) to be inspected, an amount in travel of the measurement light beam which has passed through the lens (L) is then detected by a TV camera (34), and the refractive characteristics of the lens (L) based on the detection result are computed by an arithmetic and control circuit (35) and are displayed by a display unit (3). In the lens meter, the arithmetic and control circuit (35) computes cylindrical power of a distance portion (40) of the lens (L) in consideration of cylindrical power and a direction of a cylindrical axis from the detection result of the TV camera (34), and then computes cylindrical power in distortion areas (42, 43) except the distance portion (40), a progressive portion (41), and a near portion (41') in consideration of the cylindrical power and the direction of the cylindrical axis. After that, the arithmetic and control circuit (35) subtracts the cylindrical power of the distance portion (40) from the cylindrical power of the distortion areas (42, 43). Based on the obtained subtraction results, the arithmetic and control circuit (35) computes boundary lines (44, 45) between the distance, progressive, and near portions (40, 41, 41') and the distortion areas (42, 43) except these portions, and allows the display unit (3) to display the boundary lines (44, 45).
    • 提供了一种透镜计,其中从光源(21)发射的测量光束投影到要检查的透镜(L)上,穿过透镜(L)的测量光束的行进量为 然后由电视摄像机(34)检测出,根据检测结果,通过算术和控制电路(35)计算透镜(L)的折射特性,并由显示单元(3)显示。 在镜头计量器中,算术和控制电路(35)根据电视摄像机的检测结果考虑圆柱形光焦度和圆柱轴线方向,计算透镜(L)的距离部分(40)的圆柱光焦度 34),然后考虑到圆柱形功率和方向的方向,计算除了距离部分(40),渐进部分(41)和近部分(41')之外的失真区域(42,43)中的圆柱形功率 圆柱轴。 之后,算术和控制电路(35)从失真区域(42,43)的圆柱形功率中减去距离部分(40)的圆柱形功率。 根据获得的减法结果,算术和控制电路(35)计算距离,渐进和近部分(40,41,41')和畸变区域(42,43)之间的边界线(44,45),除了 这些部分,并且允许显示单元(3)显示边界线(44,45)。
    • 6. 发明授权
    • Lens meter
    • 镜头表
    • US5910836A
    • 1999-06-08
    • US937184
    • 1997-09-29
    • Yukio IkezawaEiichi YanagiYasufumi FukumaTakeyuki Kato
    • Yukio IkezawaEiichi YanagiYasufumi FukumaTakeyuki Kato
    • G01M11/02G01B9/00
    • G01M11/0235
    • A lens meter is provided which comprises a light source for generation of a measuring light beam and a pattern forming plate provided in an optical path of the measuring light beam. The pattern forming plate has a central pattern for measuring lens characteristics of a narrow area on an eyeglass lens and a plurality of peripheral patterns for measuring lens characteristics of a wide area on the eyeglass lens. The pattern forming plate can be switched between a normal measuring mode which receives the image of the central pattern based on the measuring light beam transmitted through the narrow area of the eyeglass lens and also measures the narrow area alone and displays the measured values and a wide-area measuring mode which receives a great number of images of the peripheral patterns based on the measuring light beam transmitted through the wide area of the eyeglass lens and also measures the wide area and performs mapping display.
    • 提供一种透镜计,其包括用于产生测量光束的光源和设置在测量光束的光路中的图案形成板。 图案形成板具有用于测量眼镜镜片上的窄区域的透镜特性的中心图案和用于测量眼镜镜片上的广泛区域的透镜特性的多个外围图案。 图案形成板可以在基于透过​​眼镜镜片的狭窄区域的测量光束接收中心图案的图像的正常测量模式之间切换,并且还单独测量窄区域并显示测量值和宽 - 测量模式,其基于通过眼镜透镜的广泛区域传输的测量光束接收大量的外围图案的图像,并且还测量广域并执行映射显示。
    • 7. 发明授权
    • Lens meter
    • 镜头表
    • US07088439B2
    • 2006-08-08
    • US11218267
    • 2005-09-01
    • Yasufumi FukumaTakeyuki KatoEiichi Yanagi
    • Yasufumi FukumaTakeyuki KatoEiichi Yanagi
    • G01B9/00
    • G01M11/0235G01M11/0207G01M11/0214G01M11/0228
    • A lens meter having a measurement optical system including a light-emitting optical system, emitting a measurement luminous flux to an eyeglass lens, and a light-receiving optical system having a light-receiving element, receiving the measurement luminous flux passing through the eyeglass lens, an eyeglass holding device between the light-emitting and light-receiving systems, and an arithmetic control circuit computing characteristics of the lens based on receiving element output. The holding device includes a lens receiver supporting the lens, and an eyeglass sandwiching unit, which sandwiches the eyeglasses. The lens receiver is freely movable between the measurement optical path of the measurement optical system and a withdrawal position outside the path, and is moved in the withdrawal position after the eyeglasses have been sandwiched by the sandwiching unit.
    • 一种具有测量光学系统的测量光学系统,该测量光学系统包括向眼镜透镜发射测量光通量的发光光学系统和具有光接收元件的光接收光学系统,接收通过眼镜透镜的测量光束 ,在发光和光接收系统之间的眼镜保持装置,以及基于接收元件输出来计算透镜的特性的算术控制电路。 保持装置包括支撑透镜的透镜接收器和夹持眼镜的眼镜夹层单元。 透镜接收器可以在测量光学系统的测量光路和路径外的取出位置之间自由移动,并且在眼镜被夹持单元夹持之后移动到退避位置。
    • 9. 发明授权
    • Lens meter
    • 镜头表
    • US06950180B2
    • 2005-09-27
    • US10875014
    • 2004-06-22
    • Yasufumi FukumaTakeyuki KatoEiichi Yanagi
    • Yasufumi FukumaTakeyuki KatoEiichi Yanagi
    • G01M11/02G02C13/00G01B9/00
    • G01M11/0235G01M11/0207G01M11/0214G01M11/0228
    • A lens meter according, including: a unit body provided with eyeglasses support means for supporting eyeglasses; a left measurement optical system provided in the unit body and provided with a left light-emitting optical system that emits measurement light to a left eyeglass lens of the eyeglasses and a left light-receiving optical system that receives the measurement light passing through the left eyeglass lens with a CCD (light-receiving element); a right measurement optical system provided in the unit body and provided with a right light-emitting optical system that emits measurement light to a right eyeglass lens of the eyeglasses and a right light-receiving optical system that receives the measurement light passing through the right eyeglass lens with the CCD (light-receiving element); and an arithmetic control circuit that performs operation to the optical characteristics of a pair of the eyeglass lenses based on an output of the CCD (light-receiving element).
    • 一种镜片,包括:单元体,设置有用于支撑眼镜的眼镜支撑装置; 左测量光学系统,设置在单元体中,并且设置有向左眼镜片发出测量光的左发光光学系统和接收通过左眼镜的测量光的左光接收光学系统 带有CCD(光接收元件)的镜头; 一种右测量光学系统,设置在单元体中,并具有向眼镜右眼镜片发射测量光的右发光光学系统,以及接收通过右眼镜的测量光的右光接收光学系统 带有CCD(光接收元件)的镜头; 以及基于CCD(受光元件)的输出对一对眼镜镜片的光学特性进行操作的运算控制电路。
    • 10. 发明授权
    • Apparatus for measuring refractive power
    • 用于测量屈光力的装置
    • US06844925B2
    • 2005-01-18
    • US10110333
    • 2001-08-13
    • Yasufumi FukumaEiichi Yanagi
    • Yasufumi FukumaEiichi Yanagi
    • G01M11/02G01B9/00
    • G01M11/0235G01M11/0228
    • A refracting power measuring apparatus according to the present invention comprises an optical system 1 for projecting a measuring light P toward a lens TL wet with liquid 12, a light receiving sensor 7 for receiving and outputting the measuring light P which passes through the lens TL, an arithmetic circuit 13 for calculating optical characteristic values based on a receiving signal, a residual quantity arithmetic circuit 14 for outputting a residual quantity signal based on characteristic value data of the arithmetic circuit 13, a delay circuit 19 for delaying the residual quantity signal, a comparing circuit 18 which compares a residual quantity signal delayed by the delaying circuit 19 and the following residual quantity signal and judges whether a difference therebetween is less than an allowed value.
    • 根据本发明的折射率测量装置包括:用于将测量光P投射到用液体12湿润的透镜TL的光学系统1;用于接收和输出穿过透镜TL的测量光P的光接收传感器7; 用于基于接收信号计算光学特性值的算术电路13,用于基于运算电路13的特征值数据输出剩余量信号的剩余量运算电路14,用于延迟剩余量信号的延迟电路19, 比较延迟电路19延迟的剩余量信号和后续剩余量信号的比较电路18,并判断它们之间的差是否小于允许值。