The present invention provides a wavelength detection device (10) provided with: a plurality of optical filters (12a, 12b); a splitting unit (11) which splits light and allows the split light to pass through each of the plurality of optical filters (12a, 12b); a plurality of light receiving elements (13a, 13b) which detect the intensities of different beams of light which have passed through the optical filters, respectively; and a calculation unit (16) which calculates, from the outputs of the plurality of light receiving elements, physical quantities related to the transmittances of the plurality of optical filters, and calculates the wavelengths of the beams of light which have passed through the plurality of optical filters, on the basis of the transmittance characteristics, wherein the transmittance characteristics of the plurality of optical filters have an inclination section in different wavelength ranges of the wavelength range of the object to be measured.

A technique of determining the presence of a species in a sample may include passing light through an optical filter. In an example, the optical filter may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.

Examples of a method to use in an electronic device, an electronic device, and machine-readable non-transitory storage medium at disclosed herein. An example of the machine-readable non-transitory storage medium includes instructions executable by processor of an electronic device to generate a molecular signature to based on molecular signature data representative of a determined molecular structure of an object scanned by a molecular detector of the electronic device and to embed the molecular signature tag in metadata of an image file based on a captured image of the object by a camera of the electronic device.

A measuring device includes an optical device which includes a window on which light is incident, a shutter which includes a white reference surface on an optical device side and is configured to block the window, a first moving mechanism which moves the optical device in a direction, and a second moving mechanism which relatively moves the window and the shutter between a first position at which the window is blocked by the white reference surface and a second position at which light is incident on the window.

A photometric device (1) measuring light emitted from a measuring object such as a display (2) includes two types of filters including interference filters (20X, 20Y, and 20Z) and an LVF (21), a disk (22) supporting the interference filters and the LVF, a motor (23) rotatably drive the disk to cause the light emitted from the measuring object to scan the interference filters and the LVF sequentially, a photoreceptor (13) converting light passed through the interference filters and light passed through the LVF to an electrical signal, a photometric controller (14) outputting photometric information based on the electrical signal of the light passed through the interference filters and converted by the photoreceptor and the electrical signal of the light passed through the LVF and converted by the photoreceptor.

A photometric device (1) measuring light emitted from a measuring object such as a display (2) includes interference filters (20X, 20Y, and 20Z) selectively transmitting a particular wavelength corresponding to a respective one of tristimulus values, an LVF (21) separating and transmitting incident light, a disk (22) supporting the interference filters and the LVF, a motor (23) rotatably drive the disk to cause the light emitted from the measuring object to scan the interference filters and the LVF sequentially, a photoreceptor (13) converting light passed through the interference filters and light passed through the LVF to an electrical signal, and a photometric controller (14) outputting photometric information based on the electrical signal of the light passed through the interference filters and converted by the photoreceptor and the electrical signal of the light passed through the LVF and converted by the photoreceptor.

Exemplary embodiments of the present disclosure are related to a color target and methods and systems for estimating a spectral reflectance of the color target based on an image of the color target. The color target can include a substrate having a target surface, a sample window formed in the substrate and defining perimeter within which a sample surface is disposed, and one or more filters disposed the sample surface. The one or more filters are configured to cover a first portion of the sample surface, while leaving a second portion of the sample surface uncovered.

Exemplary embodiments of the present disclosure are related to a color target and methods and systems for estimating a spectral reflectance of the color target based on an image of the color target. The color target can include a substrate having a target surface, a sample window formed in the substrate and defining perimeter within which a sample surface is disposed, and one or more filters disposed the sample surface. The one or more filters are configured to cover a first portion of the sample surface, while leaving a second portion of the sample surface uncovered.

In one embodiment, an apparatus for measuring a color of a non-solid colored sample includes an integrating sphere having a sensor port, a sample port, and a plurality of registration marks affixed to an interior surface of the integrating sphere, outside a periphery of the sample port, a camera positioned near the sensor port, and a plurality of filters positioned between the integrating sphere and camera. An optical axis of the camera extends from the camera, through at least one of the plurality of filters, through the sensor port, to the sample port.

In one embodiment, an apparatus for measuring a color of a non-solid colored sample includes an integrating sphere having a sensor port, a sample port, and a plurality of registration marks affixed to an interior surface of the integrating sphere, outside a periphery of the sample port, a camera positioned near the sensor port, and a plurality of filters positioned between the integrating sphere and camera. An optical axis of the camera extends from the camera, through at least one of the plurality of filters, through the sensor port, to the sample port.