Abstract:
An integrated circuit for an imaging system is disclosed. In one aspect, an integrated circuit has an array of optical sensors, an array of optical filters integrated with the sensors and configured to pass a band of wavelengths onto one or more of the sensors, and read out circuitry to read out pixel values from the sensors to represent an image. Different ones of the optical filters are configured to have a different thickness, to pass different bands of wavelengths by means of interference, and to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non-monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors.
Abstract:
An integrated circuit for an imaging system is disclosed. In one aspect, an integrated circuit has an array of optical sensors, an array of optical filters integrated with the sensors and configured to pass a band of wavelengths onto one or more of the sensors, and read out circuitry to read out pixel values from the sensors to represent an image. Different ones of the optical filters are configured to have a different thickness, to pass different bands of wavelengths by means of interference, and to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors.
Abstract:
A wavelength monitor/stabilizer for narrowly controlling the bandwidth of laser; the monitor/stabilizer uses parameters Q, F or G derived by measuring diameters of interference fringes given by the beam of the wavelength-controlled narrow bandwidth laser e.g. excimer laser and those given by the reference light e.g. of a mercury lamp. The controlling is made by controlling the parameter to be in a predetermined range. An image sensing unit for detecting the interference fringes are splitted into plural image sensors with adjustable distance for enabling more rapid measurement by skipping the in-between part.
Abstract:
An apparatus for the simultaneous detection of several ranges of wavelengths of polychromatic light radiation, using one detector for each detected range of wavelengths, includes an interference filter which filters the range of wavelengths to be detected out of the polychromatic light beam, and optical elements for guiding the polychromatic light beam to be detected. The optical elements include a first system of mirrors in the path of the incident polychromatic light beam for collimating it in a hollow-cylindrical manner, one mirror of the first system of mirrors being located at the center of the collimated light beam. The optical elements further include a second system of mirrors in the hollow-cylindrically collimated light beam that deflects this light essentially perpendicularly to the conceptual surface of the hollow cylinder and radially to the longitudinal axis of thereof. Photo-detectors associated with the particular deflection mirrors are mounted opposite the second system of mirrors to receive the deflected light. A common interference filter is mounted in the path of the beam between the deflecting mirrors and the photo-detectors, the deflecting mirrors and the associated photo-detectors being pivotable about the interference filter.
Abstract:
An integrated circuit for an imaging system has an array of optical sensors (40), and an array of optical filters (10) each configured to pass a band of wavelengths onto one or more of the sensors, the array of optical filters being integrated with the array of sensors, and the integrated circuit also having read out circuitry (30) to read out pixel values from the array of sensors to represent an image, different ones of the optical filters being configured to have a different thickness, to pass different bands of wavelengths by means of interference, to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors.
Abstract:
A measured laser oscillation light is introduced into an etalon, a concentric circular interference stripe derived from the etalon is irradiated on one dimensional photodetector array, and a diameter of said interference stripe is measured to measure a wavelength. By an arrangement wherein the reference laser oscillation light and the measured laser oscillation light are introduced into the etalon as described above, extremely high accurate wavelength measurement can be made without being affected by a positional deviation of an optical system and precision.
Abstract:
A measured laser oscillation light is introduced into an etalon, a concentric circular interference stripe derived from the etalon is irradiated on one dimensional photodetector array, and a diameter of said interference stripe is measured to measure a wavelength. By an arrangement wherein the reference laser oscillation light and the measured laser oscillation light are introduced into the etalon as described above, extremely high accurate wavelength measurement can be made without being affected by a positional deviation of an optical system and precision.
Abstract:
본 고안은 프리즘을 이용하여 한가지 색의 광원으로 여러 가지 색깔의 스펙트럼을 만들어 내도록 한 프리즘 전등에 관한 것이다. 이를 위해 본 고안은, 스위치 및 전원공급수단을 구비한 소정 형상의 케이스로 된 전등에 있어서, 상기 케이스내에 형성되되, 소켓이 설치된 소정 형상의 수납공간부; 상기 소켓과 결합 및 해제가능한 광원; 상기 광원과 소정 간격 이격되고 일측이 상기 광원의 전방에서 회동가능하도록 상기 수납공간부의 일측에 힌지결합되며, 소정의 광이 입사됨에 따라 스펙트럼을 발생시키는 스펙트럼 발생기; 상기 수납공간부의 개방된 전면부를 커버하되, 상호 등간격으로 배치된 다수의 그레이데이션 슬릿 렌즈를 갖춘 그레이데이션 슬릿 렌즈부가 내측면에 소정각도 만곡되게 설치되어 상기 스펙트럼 발생기로부터 스펙트럼이 입사됨에 따라 다파장의 스펙트럼을 만들어내는 스크린 커버; 및 상기 광원과 소정 간격 이격된 채로 상기 광원의 후부에서 상기 스크린 커버에 대향되게 상기 수납공간부의 일측에 고정되고, 입사되는 소정의 광을 상기 스크린 커버쪽으로 반사시키는 반사부재를 구비한다.