摘要:
A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
摘要:
A spectrometer for use with a desired wavelength range includes an array of filters. Each filter outputs at least two non-contiguous wavelength peaks within the desired wavelength range. The array of filters is spectrally diverse over the desired wavelength range, and each filter in the array of filters outputs a spectrum of a first resolution. An array of detectors has a detector for receiving an output of a corresponding filter. A processor receives signals from each detector, and outputs a reconstructed spectrum having a second resolution, the second resolution being higher than any of the first resolution of each filter.
摘要:
A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
摘要:
A spectrometer for use with a desired wavelength range includes an array of filters. Each filter outputs at least two non-contiguous wavelength peaks within the desired wavelength range. The array of filters is spectrally diverse over the desired wavelength range, and each filter in the array of filters outputs a spectrum of a first resolution. An array of detectors has a detector for receiving an output of a corresponding filter. A processor receives signals from each detector, and outputs a reconstructed spectrum having a second resolution, the second resolution being higher than any of the first resolution of each filter.
摘要:
A thin camera having sub-pixel resolution includes an array of micro-cameras. Each micro-camera includes a lens, a plurality of sensors of size p, and a plurality of macro-pixels of size d having a feature of size q. The feature size q smaller than p and provides a resolution for the micro-camera greater than p. The smallest feature in the micro-cameras determines the resolution of the thin camera. Each macro-pixel may have any array of m features of size q, where q=d/m. Additional micro-cameras may be included to increase power.
摘要翻译:具有子像素分辨率的薄型相机包括微型相机阵列。 每个微型摄像机包括透镜,大小为p的多个传感器,以及大小为d的多个具有尺寸为q的特征的宏观像素。 特征尺寸q小于p,并为微型摄像机提供大于p的分辨率。 微型相机中最小的功能决定了薄型相机的分辨率。 每个宏像素可以具有任何尺寸为q的m个特征的阵列,其中q = d / m。 可以包括附加的微型摄像机以增加功率。
摘要:
A thin camera having sub-pixel resolution includes an array of micro-cameras. Each micro-camera includes a lens, a plurality of sensors of size p, and a plurality of macro-pixels of size d having a feature of size q. The feature size q smaller than p and provides a resolution for the micro-camera greater than p. The smallest feature in the micro-cameras determines the resolution of the thin camera. Each macro-pixel may have any array of m features of size q, where q=d/m. Additional micro-cameras may be included to increase power.
摘要翻译:具有子像素分辨率的薄型相机包括微型相机阵列。 每个微型摄像机包括透镜,大小为p的多个传感器,以及大小为d的多个具有尺寸为q的特征的宏观像素。 特征尺寸q小于p,并为微型摄像机提供大于p的分辨率。 微型相机中最小的功能决定了薄型相机的分辨率。 每个宏像素可以具有任何尺寸为q的m个特征的阵列,其中q = d / m。 可以包括附加的微型摄像机以增加功率。
摘要:
A compact interferometer includes a substrate having opposing faces and a suppression feature on one of the faces of the substrate. The suppression feature suppresses higher order reflections inside the substrate. The suppression feature may be an absorptive coating. The interferometer produces high throughput, high contrast signals when receiving light at normal or near normal incidence.
摘要:
A thin camera having sub-pixel resolution includes an array of micro-cameras. Each micro-camera includes a lens, a plurality of sensors of size p, and a plurality of macro-pixels of size d having a feature of size q. The feature size q smaller than p and provides a resolution for the micro-camera greater than p. The smallest feature in the micro-cameras determines the resolution of the thin camera. Each macro-pixel may have any array of m features of size q, where q=d/m. Additional micro-cameras may be included to increase power.
摘要翻译:具有子像素分辨率的薄型相机包括微型相机阵列。 每个微型摄像机包括透镜,大小为p的多个传感器,以及大小为d的多个具有尺寸为q的特征的宏观像素。 特征尺寸q小于p,并为微型摄像机提供大于p的分辨率。 微型相机中最小的功能决定了薄型相机的分辨率。 每个宏像素可以具有任何尺寸为q的m个特征的阵列,其中q = d / m。 可以包括附加的微型摄像机以增加功率。
摘要:
A color camera includes at least three sub-cameras, each sub-camera having an imaging lens, a color filter, and an array of detectors, The color camera combines images from the three sub-cameras to form a composite multi-color image, wherein the three sub-cameras include a total number of detectors N and a total number of different color sets X, wherein a first number of signals of a first color set is less than N/X and a second number of signals of a second color set is greater than N/X, signals of the second color set being output from at least two of the three sub-cameras, wherein resolution of a composite image of the second color set is greater than resolution of an individual sub-camera and a resolution of the composite image. Corresponding images of the same color set may be shifted, either sequentially or simultaneously, relative to one another.
摘要:
A wavelength detector includes a beam splitter block that taps off two spatially separated beams and a linear filter in an optical path of one of the two beams. The linear filter may be provided on the beam splitter block. The linear filter may be a notch anti-reflective filter in the optical path of the application beam. One or both of the beams may be focused on to their respective detectors.