92results about How to "Improve color balance" patented technology

The exposure amounts of R, G, and B laser light emitted from a fabrication light source are so adjusted that the diffraction efficiency at R, G, and B wavelengths in an optical element is commensurate with the light intensity at the R, G, and B wavelengths in the light emitted from a reproduction light source. For example, when the light intensity of the light emitted from the reproduction light source is increasingly low at the B, G, and R wavelengths in this order, the exposure amounts of the R, G, B, laser light emitted from the fabrication light source are so adjusted that the diffraction efficiency in the optical element is increasingly high at the B, G, and R wavelengths in this order. In this way, the hue of the light (reproduction light) obtained from the reproduction light source via the optical element can be adjusted to the hue desired with every reproduction light source used, while the most use is made of the light emitted from the reproduction light source actually used.

A yellow ink composition for inkjet recording, containing one or more pigments selected from a group consisting of C. I. Pigment Yellow 213, 185, and 155 as a colorant.

A photographing apparatus and method for recognizing an object such as a face in an image. The photographing apparatus includes: an optical system comprising a focus lens; a photoelectric transformation element transforming light information into an electrical signal; an image signal processor outputting the electrical signal as an image signal; a first distance measurer detecting face region data corresponding to a face from the image signal, comparing the face region data with standard face data, and obtaining a first object distance from the photographing apparatus to the face; a second distance measurer detecting a focus position for the face and obtaining a second object distance from the photographing apparatus to the face; and a face recognizer comparing the first and second object distances and recognizing that the face region data includes data corresponding to the face.

There is provided a liquid crystal display element (1) including a transparent substrate (2) having formed on a surface of a glass substrate (2a) thereof a transparent electrode (6) and an alignment layer (18) covering the transparent electrode (6),

• • a drive circuit board (3) disposed opposite to the transparent substrate (2) and having formed on a surface of a silicon substrate (3a) thereon opposite to the transparent electrode (6) a plurality of switching drive circuits (9) and a plurality of reflection pixel electrodes (15), corresponding to pixels (12a), respectively, a protective layer (16) covering the plurality of reflection pixel electrodes (15) and an alignment layer (19) covering the protective layer (16) and a liquid crystal layer (4) interposed between the alignment layer (18) on the transparent substrate (2) and the alignment layer (19) on the drive circuit board (3), the protective layer (16) being a stack of at least two dielectric layers (16a, 16b) different in refractive index from each other, and the thickness of each of the stacked dielectric layers (16a, 16b) being set to compensate the wavelength dependence of the reflectance of the reflection pixel electrodes (15). Thus, the reflection type liquid crystal display element (1) has an improved performance of spectral reflection.

Above a TN liquid crystal panel 140, there is provided an upper polarizing plate 130, and below it, there are sequentially provided a color filter 150, a lower polarizing plate 160, a light diffusion plate 170, a reflection polarizing plate 180, a backlight 190, and a light reflection plate 200. And the relationship between the haze value H of the light diffusion plate 170 and the distance between the light diffusion plate 170 and the light reflection plate 200 is set so as to satisfy the formula: H≧−200d+140, whereby it is possible to sufficiently diffuse incident light 111 passing through the light diffusion plate 170 and reaching the light reflection plate 200; in the case of black and white display, a reduction in parallax is achieved, and in the case of color display, the reflected light can be made white.

A solid-state imaging device includes a semiconductor layer on which a plurality of pixels are arranged along a light-receiving surface being a main surface of the semiconductor layer, photoelectric conversion units provided for the respective pixels in the semiconductor layer, and a trench element isolation area formed by providing an insulating layer in a trench pattern formed on a light-receiving surface side of the semiconductor layer, the trench element isolation area being provided at a position displaced from a pixel boundary between the pixels.

An image display apparatus includes a diaphragm (9b) arranged at a pupil position. The shape of an aperture of the diaphragm (9b) is similar to the shape of a light source image formed by an illuminating optical system at the pupil position. An area varying mechanism (90) varies the area of the aperture of the diaphragm (9b) in response to a focal length varying operation of a projection lens (9). This prevents an excessive opening from being formed around a light source image cast by the illuminating optical system, thereby preventing the deterioration of displayed images due to unwanted light that may pass through the excessive opening.

A variable transmittance element includes two substrates, two transparent electrode layers held between the two substrates, an electrochromic layer held between the two transparent electrode layers and having transmittance that is reversibly changed by electric control, and a first dielectric layer provided between one of the two substrates and one of the two transparent electrode layers closest to the one of the two substrates and configured to reduce reflections. The first dielectric layer is a multilayer film made by alternately laminating two or more layers each having a high refractive index and two or more layers each having a low refractive index, a refractive index difference for a wavelength of 550 nm between the layer having the high refractive index and the layer having the low refractive index being 0.2 or more.

The ink composition 60 is produced in such a way that the difference between dynamic surface tension(mN/m) and static surface tension(mN/m) determined at 24-26[deg.]C by maximum foam pressure method is 0-7(mN/m). The printing method comprises the following process. The ink composition 60 is reserved in the ink tank 50 of the ink head 1 and fed from the ink tank 50 into an ink chamber 40 with a jet nozzle 31, voltage is applied on a diaphragm section 12 formed of a piezoelectric material and pressure is applied on the ink composition 60 filled in the ink chamber 40 through the diaphragm section 12 to jet droplets of the ink composition 60 via the jet nozzle 31, and the droplets are put on a printing material to print images on the printing material.

There is provided an optical filter of the type having absorption and with low reflection, which includes a light-transmitting substrate; and a light-absorbing gradient refractive index thin film provided on the substrate and whose refractive index changes so as to be close to the refractive index of the substrate toward the substrate side in a film thickness direction. There is also provided an optical apparatus using the optical filter.

A description is given of a method and a circuit arrangement for operating a high-pressure gas discharge lamp with a lamp current superposed with first current pulses, in particular in a system for the time-sequential production of (primary) colors and possibly white segments, from which an image to be displayed is synthesized, in which, in order to change or correct color and/or brightness properties of the image, the first current pulses are adjusted with regard to their amplitude and/or temporal length and/or temporal position relative to the production of the colors and/or white segments. A description is also given of a projection system comprising such a circuit arrangement.

A color filter 40 has a light-transmissive substrate 2, a reflecting layer 3 formed on the back substrate 2 and provided with openings 4, boundary layers 5 and 21 formed on the reflecting layer 3, and a plurality of coloring layers 6 enclosed by the boundary layers 5 and 21. A transparent coat layer 25 is provided between the reflecting layer 3 and the boundary layers 5 and 21. A step is formed between the openings 4 and the transparent coat layer 25. The coloring layers 6 are formed by applying the droplets 150 of colored fluid to the openings 4 first, and then to the transparent coat layer 25. The difference in color saturation of the color filter 40 in a reflective display mode and a transmissive display mode is reduced. Also, a liquid material is appropriately applied to the color filter 40, to enhance color balance.

A black dye ink for ink-jet recording containing a black dye, a color dye for toning, a water-soluble organic solvent and water, satisfies the following inequalities (1) and (2) simultaneously:

ODimax(0)−ODimin(0)≦0.15, and   (1)

ODimax(1)−ODimin(1)≦0.15,   (2)

• • where ODimax(0) and ODimin(0) are maximum and minimum optical densities, respectively, of ODiy(0), ODim(0) and ODic(0) which are the optical densities of Y, M and C color components, respectively, of a solid black printed portion printed on glossy paper with the black dye ink and having an average optical density of about 0.9 or more and about 1.1 or less; and
  • ODimax(1) and ODimin(1) are maximum and minimum optical densities, respectively, of ODiy(1), ODim(1) and ODic(1) which are the optical densities of the Y, M and C color components, respectively, after a predetermined light fastness test is performed on the solid black printed portion.