Abstract:
An image-sensing apparatus is provided. The image-sensing apparatus includes: an optical filter array including a two-band passing filter and an infrared filter; an RGB pixel array placed below the two-band passing filter; and a TOF pixel array adjacent to the RGB pixel array and placed below the two-band passing filter and the infrared filter, wherein a combination of the two-band passing filter and the infrared passing filter permits only the incident light in the infrared region to pass to the ToF pixel array.
Abstract:
A wavelength-tunable detector for use in a label-independent optical reader for reading at least one resonant waveguide grating (RWG) biosensor is disclosed. The wavelength-tunable detector includes a tunable wavelength filter. Broadband light is made incident upon the RWG biosensor to produce resonantly reflected light, which is then passed through the tunable wavelength filter whose central wavelength is adjusted, such as by varying the filter angle of the tunable wavelength filter. This generates filtered resonantly reflected light, which is detected by a photodetector that generates an electrical signal in response thereto. The electrical signal is representative of the detected spectrum, which includes the center resonant wavelength of the RWG biosensor. A controller can be used to determine the center resonant wavelength from the electrical signal.
Abstract:
In the color imaging system, multiple rendering devices are provided at different nodes along a network. Each rendering device has a color measurement instrument for calibrating the color presented by the rendering device. A rendering device may represent a color display in which a member surrounds the outer periphery of the screen of the display and a color measuring instrument is coupled to the first member. The color measuring instrument includes a sensor spaced from the screen at an angle with respect to the screen for receiving light from an area of the screen. A rendering device may be a printer in which the measuring of color samples on a sheet rendered by the printer is provided by a sensor coupled to a transport mechanism which moves the sensor and sheet relative to each other, where the sensor provides light from the sample to a spectrograph. The color measuring instruments provide for non-contact measurements of color samples either displayed on a color display, or printed on a sheet, and are self-calibrating by the use of calibration references in the instrument.
Abstract:
A monitoring device includes a housing that is constructed and arranged to be removably attached to a drug delivery device for an inhaled drug. A color detector is operatively associated with the housing and constructed and arranged to detect an identifying color of at least a portion of the drug delivery device when the housing is attached to the drug delivery device and to output color information for use by a processor to, based on the detected color, identify information about the inhaled drug.
Abstract:
A primary beam splitter (310) of an optical apparatus (300) can be used to split an incident light beam (305) into a primary plurality of light beams and to direct a first beam of the primary plurality of light beams in a first direction and a second beam of the primary plurality of light beams in a second direction orthogonal to the first direction. Secondary beam splitters (315a,b) positioned in beam paths of the first and second beams can be used to split the first and second beams of the primary plurality of light beams into a secondary plurality of light beams (320a,b) and to split the second beam of the primary plurality of light beams into a tertiary plurality of light beams (325a,b). A primary plurality of beam reflectors (335a,b/340a,b/345a,b) can be positioned and used to redirect the secondary and tertiary plurality of light beams toward a common detector (355).
Abstract:
An observation device observing a sample cultured in a culture vessel includes an illuminating unit including an illumination optical system and illuminating the sample, an image-capturing unit including an imaging sensor and generating an image by capturing an image of the sample illuminated by the illuminating unit, and a wavelength limiting filter being placed on an optical axis of the illumination optical system and between the illuminating unit and the image-capturing unit, and limiting a part of wavelengths of an illumination light from the illumination optical system in accordance with optical absorption properties of an additive contained in a culture medium used for culturing the sample. Accordingly, it is possible to suppress a change of the image resulting from the additive and to enable to generate an appropriate image in an automatic observation.
Abstract:
Disclosed is an exemplary optical sensing system including at least one light source for emitting light in a first wavelength range and light in a second wavelength. An image sensor is provided for detecting light emitted from the at least one light source. The optical sensing system also includes a first optical filter disposed in a first optical path extending between the light source and the image sensor, the first optical filter configured to pass light emitted in the first wavelength range, and to substantially block light emitted in the second wavelength range. A second optical filter is disposed in a second optical path extending between the light source and the image sensor, the second optical filter configured to pass light emitted from the at least one light source in the second wavelength range, and to substantially block light emitted in the first wavelength range.
Abstract:
A high speed, high-resolution flow imaging system is modified to achieve extended depth of field imaging. An optical distortion element is introduced into the flow imaging system. Light from an object, such as a cell, is distorted by the distortion element, such that a point spread function (PSF) of the imaging system is invariant across an extended depth of field. The distorted light is spectrally dispersed, and the dispersed light is used to simultaneously generate a plurality of images. The images are detected, and image processing is used to enhance the detected images by compensating for the distortion, to achieve extended depth of field images of the object. The post image processing preferably involves de-convolution, and requires knowledge of the PSF of the imaging system, as modified by the optical distortion element.
Abstract:
Embodiments include an apparatus including a color sensor including a transmitter portion and a receiver portion, the transmitter portion including a light source operable to generate and transmit a light having a particular range of wavelengths, the receiver portion including a first detector operable to receive a first portion of the light emitted from the transmitter portion and to measure a luminance of the received first portion of the emitted light, and a second detector including a polarization filter, the second detector operable to receive a second portion of the light emitted from the transmitter after the second portion has passed through the polarization filter, and operable to measure a pure color of the received second portion of transmitted light.
Abstract:
A system and method for allowing adjustments of various parameters associated with the operation of charge-coupled devices adapted for use in biological analysis devices. Gate voltage signal applied to the CCDs can be adjusted to advantageously affect the manner in which charge is transferred from pixels. The manner in which transferred charges from the pixels are processed in a readout process can also be adjusted to advantageously change the speed of the CCD based detector. Various methods of performing such adjustments are disclosed.