Abstract:
An optical path of measurement light emitted from a measurement light source is overlaid by a beam combiner on an optical path of reference light emitted from a reference light source. The measurement light emitted from the measurement light source includes light in the sensitivity wavelength range (S1) of a measurement light detector and light in the sensitivity wavelength range (S2) of a reference light detector. An interferometer includes a wavelength separation filter that cuts light in at least a part of the sensitivity wavelength range (S2) of the reference light detector, of light included in the wavelength range of the measurement light.
Abstract:
An angle restriction filter that allows light incident thereon in a predetermined range of incident angles to pass, includes: an optical path wall section formed from a plurality of light shield members laminated in layers including a common material, thereby forming an optical path in a lamination direction of the light shield members; and a light transmission section formed in a region surrounded by the optical path wall section.
Abstract:
A light radiating portion (11a, 11b, 12, 51, 52) radiates light with wavelength λ1 having predetermined absorptivity for an object (16) and light with wavelength λ2 having smaller absorptivity for the object (16) than the wavelength λ1, to a target, so as to scan in 2-dimensional directions. A light receiving portion (17) receives scattered lights reflected by the target based on light with wavelength λ1 and light with wavelength λ2. A measuring portion (18) generates information used for detection of the object (16) at the target, based on difference between the two scattered lights with wavelength λ1 and wavelength λ2 received by the light receiving portion (17). An output portion (53) outputs whether or not the object is present at the target, by 2-dimensional area information, based on scanning by the light radiating portion (11a, 11b, 12, 51, 52) and information generated by the measuring portion (18).
Abstract:
A spectrometry system includes an imaging apparatus that includes an imaging element which captures an image, and a spectroscopic module that includes a wavelength variable interference filter and an attachment unit which holds the wavelength variable interference filter, is provided to be attachable to and detachable from the imaging apparatus, and can dispose the wavelength variable interference filter on an optical path of incident light to the imaging element during attachment to the imaging apparatus.
Abstract:
A measurement system is capable of accurately aligning the corresponding measurement points of a plurality of measurement targets to evaluate the measurement targets from measurement results. A measurement system includes a measuring instrument and a PC, the measuring instrument includes a spectroscopic unit that measures a measurement point of a measurement target and a camera that images surroundings in real-time. The PC displays an evaluation image of continuous image information, which is imaged and displayed by the camera on a display screen so as to be superimposed on a reference image of still image information, which has been imaged and stored in memory. By comparing the data obtained by measuring the measurement point in the evaluation image when both images overlap each other and the measurement data of the point in the reference image, it is possible to perform positioning easily and compare the measurement data.
Abstract:
A hand-held color measurement device is provided that is designed especially for measurements on curved surfaces includes a housing that accommodates a measurement array and further includes a housing base and a measurement opening arranged in the housing base, through which measurement opening a measurement spot on the surface of a measurement object is illuminated and the measurement light reflected by the measurement spot is picked up. The measurement array includes an illumination array for applying illumination light to the measurement spot in at least one illumination direction, and a pick-up array for detecting the measurement light in at least one observation direction. A multi-point bearing includes at least three pin-shaped support members and is arranged on the housing base. Two support members lie symmetrically on both sides of the measurement opening, wherein their connecting line extends parallel to and in the immediate vicinity of an illumination-observation plane which is defined by the illumination and observation directions. The third support member lies transversely at a distance from the other two support members.
Abstract:
Techniques related to color analysis are disclosed herein. In an example, substrate locations on a printed pattern are selected based on a set of measurements related to substrate-height. Further, color of the printed pattern is determined at the selected locations.
Abstract:
Techniques related to printing are described herein. According to an example, color patches are to be printed on a substrate. The substrate can be positioned on a substrate support for operation of a color sensor in a color measurement zone. Dimension and location in the substrate of the color patches are selected such that, for each color patch, at least a portion of the color patch can be positioned on a support projection in the color measurement zone. In some examples, color analysis techniques are described.
Abstract:
A measurement system is capable of accurately aligning the corresponding measurement points of a plurality of measurement targets to evaluate the measurement targets from measurement results. A measurement system includes a measuring instrument and a PC, the measuring instrument includes a spectroscopic unit that measures a measurement point of a measurement target and a camera that images surroundings in real-time. The PC displays an evaluation image of continuous image information, which is imaged and displayed by the camera on a display screen so as to be superimposed on a reference image of still image information, which has been imaged and stored in memory. By comparing the data obtained by measuring the measurement point in the evaluation image when both images overlap each other and the measurement data of the point in the reference image, it is possible to perform positioning easily and compare the measurement data.
Abstract:
Color calibration of color image rendering devices, such as large color displays, which operate by either projection or emission of images, utilize internal color measurement instrument or external color measurement modules locatable on a wall or speaker. A dual use camera is provided for a portable or laptop computer, or a cellular phone, handset, personal digital assistant or other handheld device with a digital camera, in which one of the camera or a display is movable with respect to the other to enable the camera in a first mode to capture images of the display for enabling calibration of the display, and in a second mode for capturing image other than of the display. The displays may represent rendering devices for enabling virtual proofing in a network, or may be part of stand-alone systems and apparatuses for color calibration. Improved calibration is also provided for sensing and correcting for non-uniformities of rendering devices, such as color displays, printer, presses, or other color image rendering device.