782results about "Glass press-moulding apparatus" patented technology

A side-emitting lens for use with an LED lamp provides a distribution of emitted light that is substantially normal to an axis of symmetry of the lens; the light can also be symmetrical with respect to a plane normal to the lens axis. The lens has a cavity in which the LED lamp can reside, having a cavity refracting surface with a central section and a stepped cavity sidewall. The lens also has a base external refracting surface surrounding the cavity, an internal reflecting surface spaced apart from the cavity, and a side surface; these surfaces redirect light that enters the lens through the cavity refracting surface. For many applications, the lens axis is vertical in service and the lens is configured to provide a narrow distribution of light in the horizontal plane.

A molded glass article manufacturing device, having a means of forcefully separating a molded glass article attached to the forming surface of an upper mold or a lower mold, and readily and reliably aligning the axes of the upper mold and lower mold, a molded glass article manufacturing method, and a method of assembling a molded glass article manufacturing device are provided. A molded glass article manufacturing device comprising a drum capable of regulating an upper mold and a lower mold having opposing forming surfaces so that the displacement axes thereof align; a forced mold separating means separating a molded glass article adhered to a forming surface from the mold by contact with at least the rim portion of the molded glass object; and a displacement means for displacing said forced mold separating means relative to said upper mold or said lower mold so that, in the course of separation of said upper mold and said lower mold, said forced mold separating means contacts at least the rim portion of said molded glass article and separates said molded glass article from the forming surface. Further, a manufacturing method for molded glass articles employing this device and a method of assembling molded glass article manufacturing devices are disclosed.

Vacuum-insulated glass (VIG) windows (10) that employ glass-bump spacers (50) and two or more glass panes (20) are disclosed. The glass-bump spacers are formed in the surface (24) of one of the glass panes (20) and consist of the glass material from the body portion (23) of the glass pane. Thus, the glass-bump spacers are integrally formed in the glass pane, as opposed to being discrete spacer elements that need to be added and fixed to the glass pane. Methods of forming VIG windows are also disclosed. The methods include forming the glass-bump spacers by irradiating a glass pane with a focused beam (112F) from a laser (110). Heating effects in the glass cause the glass to locally expand, thereby forming a glass-bump spacer. The process is repeated at different locations in the glass pane to form an array of glass-bump spacers. A second glass pane is brought into contact with the glass-bump spacers, and the edges (28F, 28B) sealed. The resulting sealed interior region (40) is then evacuated to a vacuum pressure of less than one atmosphere.

An exemplary molding apparatus (100) includes a first mold core (110), a second mold core (120), a lens holder (130), an elastic member (140) and a mold frame (150). The first mold core is substantially cylindrical and has a first molding surface for press molding a top surface of a lens. The second mold core is substantially cylindrical and has a second molding surface for press molding a bottom surface of the lens. The lens holder has a cavity for fitting the lens. The elastic member is a spring. The elastic member is placed between the lens holder and the second mold core. The first mold core, the second mold core, the lens holder and the elastic member are disposed in the mold frame.