51results about How to "Even color mixing" patented technology

The invention discloses a three-dimensional model coloring device. The three-dimensional model coloring device comprises movable guide rods (105, 110 and 125), a molding head (115), a coloring head (120) and a supporting platform (130). The molding head is used for extruding a material to form a single layer of a model; and the coloring head is in contact with the peripheral contour of each layer of material of the model to finish coloring. The design can be used for 3D printing and also can be used for coloring the peripheral contour of the model, so that a colored 3D printing effect is realized. The coloring disclosed by the invention is carried out along the normal direction of a contact surface, and a contact part is designed into a spherical contact head, so that a coloring contact region is stressed along the normal direction of a contour all the time. The three-dimensional model coloring device is simple in structural design, parts can be partially or wholly replaced and the cost is relatively low; and the different sizes of the coloring device can be selected according to processing requirements, so that serialization and standardization are convenient to realize. The whole size of the three-dimensional model coloring device is relatively small, so that the probability of color delaying in a coloring process can be easily lowered.

The invention provides a rapid shaping type full-color 3D (Three Dimensional) printer material conveying system and a control method thereof and relates to the technical field of 3D printers. The system comprises a feeding system, a molten pool system, a spraying nozzle system and a heating system, wherein the feeding system is connected with an input end of the molten pool system; an output end of the molten pool system is connected with the spraying nozzle system; the heating system is connected with the molten pool system; the feeding system comprises a feeding pipe, a feeding motor, a motor controller and a material amount sensor; the heating system comprises molten pool heating equipment, a temperature sensor, a heating controller and spraying nozzle heating equipment. The method comprises the following steps: firstly, calculating amounts of wire rods with various colors, which are needed by a printing model; then controlling the feeding motor of the feeding system and accuratelycontrolling the amounts of the wire rods with the various colors; finally, gradually mixing molten materials through controlling the temperature of each molten pool of the molten pool system and conveying a mixture into a printing spraying nozzle. The system provided by the invention has the advantages of smooth printing, no blocking of the spraying nozzle, uniform full-color mixing and good full-color printing quality, has the characteristics of durability, simple structure, low cost and the like and is easy to popularize and apply.

The present invention relates to a lens, a lens array and an illuminating device. The lens comprises a first surface and a second surface, wherein the first surface comprises: light incident surfaces, from which light enters the lens; and a total reflection surface, on which a part of light entering the lens is totally reflected, the second surface comprises a light emergent surface, wherein the light incident surfaces comprise a plurality of three-dimensional surfaces assigned to different light sources, a part of light from one light source enters the lens from one three-dimensional surface assigned to the one light source, and the other part enters the lens from one three-dimensional surface that is not assigned to the one light source. The lens has a compact structure and can uniformly mix colors.

The invention discloses a compound color polyester chopped fiber and production equipment and method thereof. The production equipment of the compound color polyester chopped fiber comprises a bunching device, a drafting device, a sizing device, a coiling device, a cutting device, a packaging device and a cotton mixing device which are connected in sequence, wherein the cotton mixing device is arranged between the cutting device and packaging device. The produced compound color polyester chopped fiber produced by using the compound color polyester chopped fiber production device has a high mixing degree. When the compound color polyester chopped fiber production device is used for producing colorized yarns, increased in costs on labor resource, physical resource and financial resource caused by manual or mechanical mixing of monochrome fibers in a spinning mill is avoided; and simultaneously, the quality problem of chromatic aberration of colored spun yarns can be solved by using the dyed yarns produced with the compound color fiber produced by using the device. The compound color polyester chopped fiber has a uniform mixed color and small chromatic aberration, and is more suitable for market economy.

Various embodiments include a multi-color micro-LED array light source that enables well-overlapped light beams of different colors. The multi-color micro-LED array light source includes a thermally conductive substrate and multiple arrays of different color micro-LEDs integrated on the thermally conductive substrate. The micro-LEDs within each array are electrically connected so that they can all be driven in unison. The multi-color array light source also includes a controller that is electrically coupled to and that drives the arrays of micro-LEDs. The controller drives the micro-LEDs in a manner that produces an output light distribution with a spatial wavelength and angular distribution that is suitable for use as a light source.