The present invention generally relates to optoelectronic compounds, including certain nitrobenzoyl compounds, for example 2-(4-nitrobenzoyl)oxazole. In certain embodiments, these compounds can be used as electrochromic media in devices requiring change of optical absorbance or transmittance as a function of applied voltage. Examples of such devices include electrochromic mirrors, windows, displays, or the like. One specific example is solar and thermal control by smart, dynamic windows for energy-efficient buildings. Other embodiments of the invention are generally directed to systems and devices using such compounds, methods of using such compounds, e.g., to control the absorbance or transmittance of light, kits involving such compounds, or the like.

A transmission type color gradation chart comprising: a color chart member including at least one color bar wherein transmitted light exhibits chromatic color; and a gray gradation chart member wherein transmitted light exhibits achromatic color, and includes a plurality of transmission regions with different brightness, wherein the color chart member and the gray gradation chart member are stacked so that there is a duplicative transmission region wherein the color bar and the plurality of transmission regions overlap in planar view.

An optical element has an area in which a transmittance varies, includes first and second antireflection layers, and an absorption layer disposed between the first and second antireflection layers, and satisfies certain conditions.

A system and method for an imaging circadiometer that measures the spatial distribution of eye-mediated, non-image-forming optical radiation within the visible spectrum.

An optical film includes: a protective layer; and a contrast ratio improvement layer including a first resin layer and a second resin layer facing the first resin layer, the second resin layer and the first resin layer being sequentially stacked from a lower surface of the protective layer, wherein the second resin layer has a refractive index greater than that of the first resin layer. The first resin layer has a patterned portion with at least two embossed optical patterns and flat sections immediately adjacent to and between the embossed optical patterns. The patterned section is in at least a portion thereof facing the second resin layer. A polarizing plate including the optical film and a liquid crystal display apparatus including the polarizing plate are also provided.

The present disclosure relates to an imaging device, a camera module, an electronic device, and an imaging system capable of optically correcting a peripheral light amount decrease caused by an optical characteristic of a lens instead of correcting by signal processing. An optical block includes a lens and a center gradation ND filter, and in the ND filter, at least a light transmittance of a peripheral portion corresponding to an outer peripheral portion of the lens is larger than a light transmittance in a vicinity of an optical axis of the lens. The present disclosure can be applied to a biometric authentication system.

Embodiments comprise an eyewear having a lens, the lens having an optical filter. A transmittance spectral profile of the optical filter comprises a transmission valley having a minimum transmittance with a spectral bandwidth, wherein the minimum transmittance of the transmittance valley is positioned at a first wavelength from about 450 nm to about 475 nm; and the spectral bandwidth, equal to the full width of the transmittance valley at the minimum transmittance plus 30%, is less than or equal to about 30 nm.

Provided is an interlayer film for laminated glass, having a dark color part with uniform parallel light transmittance in a shading region, and capable of suppressing color unevenness in the shading region. An interlayer film for laminated glass according to the present invention has one end, and the other on an opposite side of the one end, the other end has a thickness larger than a thickness of the one end, and when the interlayer film is arranged between two sheets of clear glass conforming to JIS R3202:1996 to obtain a laminated glass X, and a specific measurement of parallel light transmittance is conducted for the laminated glass X obtained, the interlayer film has a gradation part in which a parallel light transmittance continuously reduces from the one end side to the other end side, and an absolute value of a variation rate in the parallel light transmittance is more than 0.3%/mm; a transparent part located closer to the one end side than the gradation part and having a parallel light transmittance of 60% or more; and a dark color part located closer to the other end side than the gradation part and including one or more points A having an absolute value of a variation rate in the parallel light transmittance of 0.3%/mm or less.

A system and method includes a display device comprising a spatial light modulator arranged to output spatially modulated light to form an image. The system further includes a waveguide pupil expander configured to receive spatially modulated light from the display device at an input port thereof and to expand the viewing window of the system. The system further comprises a controller. In examples, the controller is configured to control the spatially modulated light output by the display device, such as to control (e.g., turn off) a light source of the display device, in response to a signal indicating detection of the breakage of glass. The signal indicating detection of the breakage of glass may be generated in response to the detection of stray laser light of the holographic system by an eye-tracking system.

CMOS image sensor with multiple sensitivities for high dynamic range imaging and LED flicker mitigation. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor substrate. Each pixel includes a plurality of cells. A plurality of color filters is disposed over corresponding plurality of cells. The plurality of color filters corresponding to the plurality of cells of an individual pixel have more than one filtering strength for each color of the plurality of color filters.