摘要:
A method for providing data regarding a given primary eyewear to a remote data processing center where the data is processed to yield production instructions for producing a clip-on for the primary eyewear. The production instructions are provided to one or more remote production units. Preferably, the site providing data regarding the primary eyewear and the site for producing the secondary eyewear object are the same site.
摘要:
A clip-on mountable on the frame of eyeglasses having a pair of optical visual-correction lenses. The clip-on is provided with a pair of filter lenses held together by a bridge, the filter lenses registering with the optical lenses to convert the eyeglasses into radiation-protection glasses, such as sunglasses. Anchored on the margin of each filter lens is at least one clip having a ledge at one end which supports the margin of the lens, and an arm at the other end that curves over the frame at the corresponding optical lens to retain the clip-on. Intermediate the ends of the clip is a transverse hook which engages the margin of the filter lens to resist dislodgment of the clip.
摘要:
A milling machine for shaping blanks to create filter lenses for a clip-on accessory whose pair of filter lenses register with a pair of optical lenses in prescription eyeglasses when the accessory is hitched onto the frame of the eyeglasses. The frame of the eyeglasses is composed of two like half sections having a predetermined geometry, an optical lens being mounted in each half-section. The filter lenses in the accessory which are joined by a bridge piece have a geometry matching that of the half-sections of the frame whereby the appearance of the clip-on accessory is compatible with that of the eyeglasses.
摘要:
A machine for shaping blanks to create a lens, the machine comprising a pair of worktables each to support one of the blanks to be shaped, and each to be driven by a first motor, a drill bit unit provided with a rotatable drill bit, an elevator supporting the drill bit unit and shiftable along a vertical axis to raise or lower the drill bit with respect to the blank on each worktable, and a second motor for driving the elevator, a carriage carrying said elevator and shiftable along a horizontal axis to move the drill bit back and forth with respect to said blanks, said carriage being driven by a third motor, and a processor adapted to coordinate the operation of the first, second and third motors to cause the drill bit to shape the blanks to form the lenses of a desired geometry.
摘要:
A system for imaging eyeglasses having lenses, and obtaining data indicative of the outline of the eyeglasses and designated locations associated with the outline. The system includes a positioning device for placing the eyeglasses. The system further includes a short focal length imaging device for acquiring an image of the eyeglasses. The system further includes a processor and a display configured to calculate an editable outline for each eyepiece of the eyeglasses and display the outline and the image, such that the editable outline can be compared to a respective eyepiece of the image. The processor is further configured to calculate supplemental locations linked to the outline for manufacturing holes and/or slots that anchor clip-on parts that include bridge and legs, and for providing data indicative of the specified outline and supplemental locations.
摘要:
A method for providing data regarding a given primary eyewear to a remote data processing center where the data is processed to yield production instructions for producing a clip-on for the primary eyewear. The production instructions are provided to one or more remote production units. Preferably, the site providing data regarding the primary eyewear and the site for producing the secondary eyewear object are the same site.
摘要:
Devices adapted to position exactly a workpiece and a machine tool for machining the workpiece to create a shaped article that conforms to a specification therefor. The device for positioning the workpiece includes a rotary table in which the workpiece is held so that it can be machined in the round by the tool. The table is turned by a slider that is driven by a stepping motor and is reciprocated by a pair of drums which are linked by flexible metal bands to opposite ends of the slider. When the motor causes the drums to rotate clockwise, the slider is then pulled in one direction by the bands, and when the drums are caused to rotate counterclockwise, the slider then advances in a reverse direction. A similar device serves to exactly position the machine tool.
摘要:
A fastening arrangement for use with a curved lens having a first face, a second face and a bore passing between them and having a longitudinal axis slanted to the lens's faces, for attaching to the lens a component at the first face of the lens. The fastening arrangement comprises a fastener having a lens-face engaging portion adapted to engage the second face of the lens and a component engaging portion entering the bore at the second face, and further comprises a fastener engaging portion in the component adapted to engage the component engaging portion of the fastener. All the engaging portions are designed so that when the component and curved lens are assembled, the lens-face engaging portion is oriented along the second face. The invention further relates an eyeglass assembly comprising such a fastening arrangement and associated components and fasteners.
摘要:
Apparatus for orienting a pair of framed eyeglasses relative to an electronic scanner whereby the scanner then generated digital data defining the geometry of the frame. This data is entered into a computer to cause it to control a milling machine which shapes a blank to form a filter lens for an accessory that clips onto the frame and has a matching geometry.