MEASURING DEVICE AND IMAGE FORMING APPARATUS
    94.
    发明申请

    公开(公告)号:US20200218187A1

    公开(公告)日:2020-07-09

    申请号:US16736350

    申请日:2020-01-07

    Abstract: A measuring device a measurement unit configured to measure an image on a sheet, the measurement unit including a light emitting portion configured to illuminate the sheet with light, and a detecting portion configured to detect light reflected by the sheet; a supporting unit supporting the measurement unit; and a driving unit configured to move the measurement unit supported by the supporting unit in a scanning direction. A size, in the scanning direction, of a detectable range of the detecting portion in which the detecting portion is capable of detecting the reflected light from the sheet is larger than a size, in a sub-scanning direction perpendicular to the scanning direction and a normal direction of a surface of the sheet, of the detectable range of the detecting portion.

    Detecting tooth shade
    95.
    发明授权

    公开(公告)号:US10695151B2

    公开(公告)日:2020-06-30

    申请号:US15888764

    申请日:2018-02-05

    Applicant: 3SHAPE A/S

    Abstract: Disclosed in a method, a user interface and a system for use in determining shade of a patient's tooth, wherein a digital 3D representation including shape data and texture data for the tooth is obtained. A tooth shade value for at least one point on the tooth is determined based on the texture data of the corresponding point of the digital 3D representation and on known texture values of one or more reference tooth shade values.

    OPTICAL SENSOR CIRCUIT
    98.
    发明申请

    公开(公告)号:US20200158574A1

    公开(公告)日:2020-05-21

    申请号:US16594085

    申请日:2019-10-07

    Abstract: An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.

    Optical analysis device and optical analysis method

    公开(公告)号:US10648910B2

    公开(公告)日:2020-05-12

    申请号:US16095263

    申请日:2017-04-19

    Abstract: A difference between a peak reflectance of a first wavelength component and a reflectance of a second wavelength component having a predetermined wavelength among reflectances of a plurality of wavelength components constituting reflected light in a highlight direction from a glitter material-containing coating film is set as a first difference value. Reflectance is measured of the first and second wavelength components of the reflected light in the highlight direction for the coating film corresponding to a measurement object. A first difference value is calculated by using the measurement result. A storage stores in advance correlation information indicating a correlation between the first difference value and an index value indicating predetermined physical characteristics of a glitter material contained in the coating film. An index value calculator calculates the index value of the coating film corresponding to the measurement object by using the correlation information and the first difference value calculated in the first calculator.

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