摘要:
An injection molding machine 1 that molds an LED illumination housing includes a fixing mold 2 that is formed in a U-shaped cross section, a moving mold 3 that is fitted to the fixing mold 2, a driving mechanism 6 that brings the moving mold 3 into contact with the fixing mold 2 and separates the moving mold 3 from the fixing mold 2, and a material supply mechanism 10 that injects resin of a molten state into a cavity 12 configured when the fixing mold 2 and the moving mold 3 are fitted to each other. Furthermore, a plurality of concave and convex portions 21 is provided on a bottom surface 20 of the fixing mold 2 so as to diffuse light transmitted through the LED illumination housing by forming a lens cut portion of a polyhedron shape on an outer surface of the LED illumination housing.
摘要:
A Flexible VCD Having Domed Center and Flat Central Bottom. Ring and Method of Making Thereof is disclosed. The disc will has a flat data storage section of its substrate that is less than 0.7 millimeters thick, while the central region of the disc is defined by a dome structure adjacent to the spindle aperture that is of standard digital disc thickness. The disc is thin enough such that its substrate is flexible. The dome structure is shaped to provide the widest compatibility with player/recorders, as well as with disc printing systems. Disc versions are available that provide conical dome structures, as well as slivered dome structures of both conical and rectangular cross-section, and a combined design having a plurality of raised protrusions on the top surface of the disc, and a flat central ring protruding from the bottom surface of the disc. The method for manufacturing the discs simply requires the replacement of the conventional stamper holder with a stamper holding having a non-flat face.
摘要:
A Flexible VCD Having Domed Center and Method of Making Thereof is disclosed. The disc will has a flat data storage section of its substrate that is less than 0.7 millimeters thick, while the central region of the disc is defined by a dome structure adjacent to the spindle aperture that is of standard digital disc thickness. The disc is thin enough such that its substrate is flexible. The dome structure is shaped to provide the widest compatibility with player/recorders, as well as with disc printing systems. Disc versions are available that provide conical dome structures, as well as slivered dome structures of both conical and rectangular cross-section. The method for manufacturing the discs simply requires the replacement of the conventional stamper holder with a stamper holding having a non-flat face.
摘要:
A method for manufacturing an optical component includes mounting each, of a series of replicating inserts to a movable support such as a mold slide. Each of the replicating inserts defines a replicating surface that bears micro-optical structures. Each of the supports is moved relative to one another so that the replicating surfaces of the inserts form at bast portions of surfaces of a concave geometric shape. An optically transmissive substrate is then disposed between the replicating surfaces, so that the micro-optical structures of the replicating surfaces are impressed upon externally facing surfaces of the optically transmissive substrate. Each of the mold slides are then moved away from the externally facing surfaces of the optically transmissive substrate, in a direction that is selected to preserve the impressed micro-optical structures.
摘要:
Mould assembly (1) consisting of two interacting mould sections (2, 3). One mould section is provided with a seat (4) and the other mould section with a body (5, 6) that is accurately accommodated by said seat (4), the body/seat interaction having a centring effect. The seat (4) is delimited by a series of ridge-shaped elements (8) that are arranged according to an annular shape. The rigidity thereof in the radial direction is greater than that in the axial direction.
摘要:
An optical disk exhibiting no detrimental thickness increase (edge wedge effect) that arises at the outer diameter of an optical disk substrate during an injection molding manufacturing process, and an apparatus and method for making such a disk. The optical disk of the present invention is designed for use with an optical disk player, especially where the data on the optical disk is stored air incident. This optical disk includes a disk substrate made from a molded polymeric material. The disk substrate has a first major surface, a second major surface, and an outer edge. The first major surface of the optical disk includes a data region having an intermediate portion and an outer portion. The outer portion extends to the outer edge of the optical disk. The disk substrate has a thickness defined by the distance between the first major surface and the second major surface. The optical disk also includes an information layer covering the data region. In the present invention, the thickness of the intermediate portion of the data region is substantially equal to the thickness of the outer portion of the data region such that the outer portion of the data region is capable of being used by the optical disk player.
摘要:
Hubless optical disc having low radial runout. The optical disc (20) is capable of containing a high capacity of information therein. The optical disc includes a disc substrate (24) having a formatted surface (34). A mechanism (32) is provided within the disc substrate for mating the optical disc with a drive spindle, wherein the formatted surface is concentrically registered relative to the mechanism within the disc substrate. In one embodiment, the mechanism may comprise an annular groove (32), annular ridge (36), or a plurality of holes molded in the disc substrate. The present invention includes optical tooling (42) for forming the hubless optical disc having low radial runout. The present invention further includes an optical disc player drive spindle (82) capable of mating with the high-capacity hubless optical disc.
摘要:
The mould according to the invention has the feature that the said end surface is an end surface of a plate with a thickness of at least 0.3 and preferably at least 0.4 mm, which plate consists at least predominantly of a material with high heat conduction, for instance steel, beryllium copper, AMPCO, ceramic material.
摘要:
An injection mould for manufacturing disc-shaped plastic articles with a central hole comprises: a first mould part (4); a second mould part (5) displaceable relative to the first mould part by means of first displacing means; which two mould parts (4, 5) are displaceable between a closed first position, in which they together partially bound a mould cavity (6) corresponding to the shape of an article for manufacture, and an open second position in which a formed article can be taken out; a third mould part (7) which, in the closed position of the first and second mould parts, extends through the mould cavity (6) defined thereby and has a shape in the region of this mould cavity which corresponds to the shape of the central hole (3), which third mould part (7) is axially displaceable by means of a guide sleeve (9) forming part of the first mould part (4) between a first position, in which it partially forms a bounding of the mould cavity, and a second retracted position; which third mould part (7) bounds a channel (10) that is conectable at the free outside end (11) to an injection nozzle (12) of an injection moulding device, and at the other side debouches with an injection inlet (13) into the region of the mould cavity (6) in the first position of the first and the second mould part and the first position of the third mould part, and in the second position of the third mould part debouches blind against the inner wall of the guide sleeve (9); and heating means (23) for keeping plastic present in the channel in the plastic state.