1266results about How to "High image quality" patented technology

The invention relates to an ink set for ink jet recording comprising at least one “resin-containing pigment ink containing water and a pigment made dispersible in water with a resin” and at least one “self-dispersion type pigment ink containing water and a pigment dispersible in water without a dispersing agent”, wherein the ink set is constituted so that the at least one resin-containing pigment ink and the at least one self-dispersion type pigment ink correspond to each other in terms of hue. Also disclosed is an ink jet recording process for conducting ink jet recording using the ink set described above, wherein the resin-containing pigment ink contained in the ink set is used for paper exclusive to ink jet recording, and the self-dispersion type pigment ink contained in the ink set is used for plain paper.

The invention discloses a camera lens. The lens sequentially comprises a first lens with positive refractive power, a second lens with negative refractive power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with focal power and a seventh lens with negative refractive power from an object side to an image side along an optical axis, wherein the object side surface of the sixth lens is a convex surface; the image side surface of the sixth lens is a also a convex surface; and the object side surface of the seventh lens is a convex surface. The effective focal length of the second lens and the effective focal length f of the camera lens meet the following relational expression: -3< / = f2 / f< -1.5.

The invention discloses an optical image capture battery of lens, an image capture apparatus and an electronic apparatus. The optical image capture battery of lens includes, from the object side to the image side: a first lens with refraction power, a second lens with positive refraction power, a third lens with refraction power, a fourth lens with refraction power, a fifth lens with refraction power, and a sixth lens with refraction power, wherein the object side surface of the first lens is a convex surface at the position being close to an optical axis, wherein the object side surface; the image side surface of the third lens is a concave surface at the position being close to the optical axis; the image side surface of the fourth lens is a concave surface at the position being close to the optical axis, and both the object side surface and the image side surface of the fourth lens are aspheric surfaces; the object side surface of the fifth lens is a concave surface at the position being close to the optical axis; and the image side surface of the sixth lens is a concave surface at the position being close to the optical axis, both the object side surface and the image side surface of the sixth lens are aspheric surfaces, and the image side surface is provided with at least one convex surface at the position of an off axis. The invention also discloses an image capture apparatus with the optical image capture battery of lens and an electronic apparatus with the image capture apparatus. Through the above configuration, the optical image capture battery of lens, the image capture apparatus and the electronic apparatus can alleviate the situation of deflection of light ray when initial incidence of the light ray into the battery of lens so as to control generation of aberrations and reduce the sensitivity of the optical image capture battery of lens and further improve the yield rate for production.

An object of the present invention is to provide a toner having small-sized and potato-shaped particles created from multiple coherent spherical particles for excellent cleaning ability and high image quality, an image-forming method that realizes high image quality using the toner, and the like. To this end, there is provided a toner, which is produced by granulating toner materials as an organic phase comprising at least a binder resin and a colorant in an aqueous medium and has potato-shaped particles created from multiple coherent primary oil droplets of the organic phase in the aqueous medium.

An ink jet inkset is provided for image printers, in particular large format printers, for printing on both porous, non-porous, and hybrid glossy media. The inket contains a black ink and one or more color inks, said color ink composition comprises at least one water-soluble dye and a vehicle comprising at least one co-solvent and at least two different surfactants, a non-ionic surfactant and a fluoro-surfactant. The total surfactant concentration ranges from about 0.05 to 6 wt % of the ink composition. The non-ionic surfactant is present in a range of about 0.05 to 3 wt % of the ink composition, while the fluoro-surfactant is present in a range of about 0.001 to 3 wt % of the ink composition. The ink formulation that works well with porous, non-porous, and hybrid glossy media and provides substantially instant ink drying and light fastness of the ink. Further, the ink formulation evidences excellent image quality. The ink can also pass harsh pen material compatibility tests. The ink does not puddle on the surface of the orifice plate in the default pen, yet has low viscosity. The ink is excellent in pen reliability such as long decap time, no decel, no kogation, and good drop directionality.

The invention discloses an optical image system, an image capturing device and an electronic device. The optical image system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has negative refractive power. The fifth lens element with negative refractive power has an object-side surface and an image-side surface being both aspheric. The sixth lens element has an object-side surface and an image-side surface being both aspheric.

The invention discloses a camera lens. The lens sequentially comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens from an object side to an image side along an optical axis, wherein the first lens has positive focal power, and an object side surface of the first lens is a convex surface; the second lens has focal power, and an image side surface of the second lens is a convex surface; the third lens has focal power; the fourth lens has focal power; the fifth lens has focal power; the sixth lens has focal power; the seventh lens has focal power; and the eighth lens has focal power, the object side surface of the eighth lens is a convex surface, and the image side surface of the eighth lens is a concave surface. Thedistance TTL from the object side surface of the first lens to the imaging surface of the camera lens on the optical axis and the half ImgH of the length of a diagonal line of an effective pixel region of an electronic photosensor of the camera lens meet the following formula: TTL / ImgH< 1.65.