Optical System for Reference Switching

    公开(公告)号:US20210010860A1

    公开(公告)日:2021-01-14

    申请号:US17030328

    申请日:2020-09-23

    Applicant: Apple Inc.

    Abstract: Systems and methods for determining one or more properties of a sample are disclosed. The systems and methods disclosed can be capable of measuring along multiple locations and can reimage and resolve multiple optical paths within the sample. The system can be configured with one-layer or two-layers of optics suitable for a compact system. The optics can be simplified to reduce the number and complexity of the coated optical surfaces, et al. on effects, manufacturing tolerance stack-up problems, and interference-based spectroscopic errors. The size, number, and placement of the optics can enable multiple simultaneous or non-simultaneous measurements at various locations across and within the sample. Moreover, the systems can be configured with an optical spacer window located between the sample and the optics, and methods to account for changes in optical paths due to inclusion of the optical spacer window are disclosed.

    SPECTROSCOPIC ANALYSIS CONTROL DEVICE, SPECTROSCOPIC ANALYSIS DEVICE, SPECTROSCOPIC ANALYSIS CONTROL METHOD, AND SPECTROSCOPIC ANALYSIS CONTROL PROGRAM

    公开(公告)号:US20210003447A1

    公开(公告)日:2021-01-07

    申请号:US16976444

    申请日:2018-03-01

    Inventor: Masaki ISHIGAKI

    Abstract: A display unit is controlled so that a plurality of parameter setting screens respectively corresponding to a plurality of steps sequentially executed in a predetermined order in quantitation is sequentially displayed and a plurality of step indexes respectively corresponding to the plurality of steps is displayed. In a plurality of parameter setting screens, inputting of a plurality of parameters respectively corresponding to the plurality of steps is received. Each time inputting of parameters in each parameter setting screen is completed, the received parameters are set in an unchangeable manner. The display unit is controlled so that each time parameters are set in one parameter setting screen, the next parameter setting screen is displayed, and the step index corresponding to the displayed parameter setting screen which is being displayed among the plurality of step indexes is displayed in such a manner as to be distinguishable from the other step indexes. A spectrophotometer is controlled based on the set parameters. The sample is quantified by a quantitative execution unit based on the set plurality of parameters.

    Detector device with photoconductive body

    公开(公告)号:US10830696B2

    公开(公告)日:2020-11-10

    申请号:US16200352

    申请日:2018-11-26

    Abstract: A solid-state device for photo detection, in general, of terahertz radiation is disclosed. One aspect is a detector device comprising a body having a photoconductive material, a first antenna element connected to a first portion of the body, and a second antenna element connected to a second portion of the body. The first antenna element and the second antenna element are arranged to induce an electric field in the body in response to an incident signal. Further, the device has a waveguide arranged to couple light into the photoconductive material via a coupling interface between the waveguide and the body, where the coupling interface faces away from the first portion and the second portion of the body and is closer to the first portion than to the second portion.

    Methods and systems for quantitatively measuring photoprotection

    公开(公告)号:US10801892B2

    公开(公告)日:2020-10-13

    申请号:US15966791

    申请日:2018-04-30

    Abstract: The present disclosure relates, according to some embodiments, to a method of determining a quantitatively measured photoprotection of a photoprotective composition, the method comprising: (a) distributing the photoprotective composition in a position in between a drawdown bar and at least one substrate to produce a distributed photoprotective composition; (b) drawing down the distributed photoprotective composition to a thickness on at least one substrate to produce a drawn down sample film; (c) drying the drawn down sample film to produce a dried sample film; (d) measuring a UV absorption of the dried sample film to produce a UV absorption spectrum; (e) determining the quantitatively measured photoprotection of the photoprotective composition from the UV absorption spectrum.

    Measurement system and a method of diffracting light

    公开(公告)号:US10801890B1

    公开(公告)日:2020-10-13

    申请号:US16539930

    申请日:2019-08-13

    Abstract: Embodiments of the present disclosure relate to measurement systems and methods for diffracting light. The measurement system includes a stage, an optical arm, and one or more detector arms. The method of diffracting light includes a method of diffracting light is provided, including projecting light beams having wavelength λlaser to a first zone of a first substrate at the fixed beam angle θ0 and the maximum orientation angle ϕmax, obtaining a displacement angle Δθ, determining a target maximum beam angle θt-max, wherein θt-max=θ0+Δθ, and determining a test grating pitch Pt-grating by a modified grating pitch equation Pt-grating=λlaser/(sin θt-max+sin θ0). The measurement system and method allow for measurement of nonuniform properties of regions of an optical device, such as grating pitches and grating orientations.

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