Abstract: An apparatus including a light conversion element including an input interface for receiving input light; an output interface for providing output light having at least one different, lower frequency than the input light; and a plurality of light guides extending between the input interface and the output interface that suspend down-conversion material at remote locations from the input interface, wherein the down-conversion material is configured to down-convert the received input light to produce the provided output light of lower frequency or frequencies.

Abstract: A method including causing synchronization of a local time frame and refresh of a display; processing an output from a light sensor from a first time, in the local time frame, for a controlled first duration to control light output of the display at a second time, in the local time frame and after the first time, for a second duration.

Abstract: A display device that has an excellent visibility even under strong light is provided. In the display device, a first display element that reflects visible light and a second display element that emits visible light are between a first substrate and a second substrate. The display device can display an image with high visibility by operating the first display element under strong light and operating the second display element under weak light. Furthermore, a first surface of the second substrate is provided with a touch sensor, and a second surface opposite to the first surface is provided with an anti-reflection layer. Such a structure can sufficiently reduce reflection of external light on the display surface under strong light, further increasing the visibility.

Abstract: A method including analysing an image intended for display on a transflective display to identify first pixels and second pixels in the image; and creating an adapted image for display on the transflective display by changing relative reflectance of the first pixels relative to the second pixels.

Abstract: A display device that has an excellent visibility even under strong light is provided. In the display device, a first display element that reflects visible light and a second display element that emits visible light are between a first substrate and a second substrate. The display device can display an image with high visibility by operating the first display element under strong light and operating the second display element under weak light. Furthermore, a first surface of the second substrate is provided with a touch sensor, and a second surface opposite to the first surface is provided with an anti-reflection layer. Such a structure can sufficiently reduce reflection of external light on the display surface under strong light, further increasing the visibility.

Abstract: An apparatus including a light conversion element including an input interface for receiving input light; an output interface for providing output light having at least one different, lower frequency than the input light; and a plurality of light guides extending between the input interface and the output interface that suspend down-conversion material at remote locations from the input interface, wherein the down-conversion material is configured to down-convert the received input light to produce the provided output light of lower frequency or frequencies.

Abstract: A method including causing synchronization of a local time frame and refresh of a display; processing an output from a light sensor from a first time, in the local time frame, for a controlled first duration to control light output of the display at a second time, in the local time frame and after the first time, for a second duration

Abstract: A method including analysing an image intended for display on a transflective display to identify first pixels and second pixels in the image; and creating an adapted image for display on the transflective display by changing relative reflectance of the first pixels relative to the second pixels.

Abstract: The specification and drawings present a new method, apparatus and software related product (e.g., a computer readable memory) for sequential rendering (including hardware acceleration) each primary color of a plurality of primary colors in each frame of an image separately in a space-time domain for displaying on field-sequential color (FSC) displays. Instead of rendering whole pixels, various embodiments provide rendering of each primary color plane separately in the space-time domain, and serializing/sequencing the colors of the the rendered data directly to the bus that is connecting a host (an operator device) and the FSC display. Generally the number of primary colors may be two or more. When displayed on a FSC display, motion quality may be largely improved.

Abstract: A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine output beam and producing the output spectrum for the combined output beam at least based on a reference spectrum. The reference spectrum can be obtained by sensing the spectrum of ambient light or selected from a plurality of stored spectra. The flash unit has at least two emissive light sources and each of the light sources can be adjusted relative to each other so that the outputs from the light sources can mimic a selected illumination scenario. It is possible to use a mixture of quantum dots to tailor each light source so that the combined spectra from different light sources can reasonably mimic a number of frequently used illumination scenario.

Abstract: Milling insert and tool for center cutting milling of material. At least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert and includes a first cutting edge portion having a first radius that is essentially equally great for each point of the first cutting edge portion. The first cutting edge includes at least one second cutting edge portion that is plane or has at least one second radius for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius and that is situated between the first cutting edge portion and the center axis. One second cutting edge portion adjoins the first cutting edge portion, and one second cutting edge portion is terminated in or adjacent to the center axis.

Abstract: A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine output beam and producing the output spectrum for the combined output beam at least based on a reference spectrum. The reference spectrum can be obtained by sensing the spectrum of ambient light or selected from a plurality of stored spectra. The flash unit has at least two emissive light sources and each of the light sources can be adjusted relative to each other so that the outputs from the light sources can mimic a selected illumination scenario. It is possible to use a mixture of quantum dots to tailor each light source so that the combined spectra from different light sources can reasonably mimic a number of frequently used illumination scenario.

Abstract: A milling insert for center cutting milling of material is disclosed, which milling insert is arranged to be arranged in a seat that is defined by a milling cutter body and situated at a rotation axis defined by the milling cutter body, the milling cutter body being connectable to a rotatable holder. The milling insert includes a plurality of cutting edges, where at least one first cutting edge is terminated in or adjacent to a center axis defined by the milling insert, the first cutting edge including a first cutting edge portion having a first radius that is essentially equally great for each point of the first cutting edge portion. The first cutting edge includes at least one second cutting edge portion that is plane or has at least one second radius for each point of the respective second cutting edge portion, the at least one second radius being greater than the first radius.

Abstract: A device comprises an image sensor having a group of pixels, wherein each pixel of the group of pixels comprises a microlens located on top of the pixel, the microlens being configured to transmit light to the pixel. The device further comprises at least one optical element, wherein each pixel of the group of pixels is covered with an optical element. The optical element comprises two transparent electrode layers aligned with the covered pixels, and a material between the two transparent electrode layers, the material being configured to change its refractive index when a voltage is applied over it, wherein the device is configured to control the transmission of the light to the covered pixels by varying the voltage of the electrode layer being aligned with the covered pixels. The invention also relates to a method and to a method for manufacturing an image sensor.

Abstract: The specification and drawings present a new method, apparatus and software product for increasing a grey dynamic range of a display for displaying video data by providing a grey level, calculated for a reduced number of primary colors using a predetermined criterion, for each field of a frame set by the display by varying an amplitude or a subfield composition of a display driving signal and by varying a fluence of simultaneously lit backlight sources (e.g., LEDs) corresponding to selected two or more primary colors of the display. Thus, grey level resolution of the display can be increased to match the higher grey level resolution of the video data provided to the display.

Abstract: The specification and drawings present a new method, apparatus and software product for dynamically adjusting a color gamut of a display (e.g., a field sequential color display) and further adjusting a luminance of the display in an electronic device by adjusting and turning on field duties of primary colors. During each color field, the other primary colors of light sources supporting the display can be turned on at their respective fractions of their color field. These fractions can be continuously tunable in order to control the color coordinate of each primary color dynamically thus adjusting the color gamut and the luminance of the display.

Abstract: A method and an apparatus for spectrum synthesis for use in a flash unit, wherein the spectrum synthesis includes combining a plurality of emissive light sources in order to provide a combine output beam and producing the output spectrum for the combined output beam at least based on a reference spectrum. The reference spectrum can be obtained by sensing the spectrum of ambient light or selected from a plurality of stored spectra. The flash unit has at least two emissive light sources and each of the light sources can be adjusted relative to each other so that the outputs from the light sources can mimic a selected illumination scenario. It is possible to use a mixture of quantum dots to tailor each light source so that the combined spectra from different light sources can reasonably mimic a number of frequently used illumination scenario.

Abstract: An apparatus includes a sample-and-hold display with a plurality of transmissive aperture holes, and an electroluminescent backlight source with a plurality of delimited emissive areas. A dedicated delimited emissive area is associated to each transmissive aperture hole of the sample-and-hold display. A display control component updates the sample-and-hold display with a predetermined refresh rate. A backlight control component activates different portions of the electroluminescent backlight source sequentially, each portion comprising a plurality of the emissive areas.

Abstract: The specification and drawings present a new method, apparatus and software product for dynamically adjusting a color gamut of a display (e.g., a field sequential color display) and further adjusting a luminance of the display in an electronic device by adjusting and turning on field duties of primary colors. During each color field, the other primary colors of light sources supporting the display can be turned on at their respective fractions of their color field. These fractions can be continuously tunable in order to control the color coordinate of each primary color dynamically thus adjusting the color gamut and the luminance of the display.

Abstract: The specification and drawings present a new method, apparatus and software product for increasing a grey dynamic range of a display for displaying video data by providing a grey level, calculated for a reduced number of primary colors using a predetermined criterion, for each field of a frame set by the display by varying an amplitude or a subfield composition of a display driving signal and by varying a fluence of simultaneously lit backlight sources (e.g., LEDs) corresponding to selected two or more primary colors of the display.