摘要:
A method of manufacturing a substrate for displays is provided, which can easily control the surface electrical resistance of the anti-electrification film formed on a surface of the substrate, and a substrate for displays manufactured by the same method. The film is formed by preparing a target from a metal oxide, and forming a thin film of a metal oxynitride on a surface of the substrate by sputtering using the target in an atmosphere of a mixture gas of an inert gas and nitrogen, a mixing ratio of the inert gas and nitrogen in the atmosphere being adjusted such that the thin film has a desired surface electrical resistance.
摘要:
There is provided a linear actuator provided with a dust-proof mechanism capable of preventing dust-proof belts from being deformed, improving a sealing performance between the dust-proof belts and a housing member, and achieving high dust-proof performance irrespective of a size of the linear actuator. The linear actuator provided with the dust-proof mechanism includes: a housing member disposed so as to cover at least a ball screw; an opening portion formed in the housing member so as to extend along a moving locus of a movable stage; and dust-proof belts stretched inside the housing member so as to close the opening portion by being mounted to mounting members disposed both end portions of the housing member, wherein a bypass member for bypassing the dust-proof belts positioned at position overlapped with the movable stage is provided for the movable stage so as to realize movement of the movable member along the opening portion while closing and sealing the opening portion by the dust-proof belts, and in such a linear actuator provided with the dust-proof mechanism, the dust-proof belts are wound up around the mounting member and sandwiched between the mounting member and the end portions of the housing member.
摘要:
A cup attaching apparatus for attaching a cup, used during processing of an eye glass lens, to the lens, the apparatus includes: a placing portion onto which the lens is placed; a holding portion for detachably holding the cup; a supporting portion for supporting the holding portion; a moving mechanism for moving the supporting portion in an optical axis direction of the placed lens; and a pressure regulating mechanism for preventing a cup attaching force from exceeding a predetermined pressure.
摘要:
A cup attaching apparatus includes: a cup attaching system for moving a cup to a lens placed at a predetermined position, and attaching the cup onto the lens; a detecting system, provided with a measurement optical system having a measurement light source, a measurement index plate and an photoelectric detector, for detecting a position of an optical center of the lens; a display system for displaying a positional offset of the lens relative to a predetermined reference position based on a result of detection by the detecting system; a data-input system for inputting data on a target lens shape or a traced outline and a layout of the lens; a memory for storing data on shapes of plural types of cups; and a selecting system for selecting a cup, which will not interfere with an abrasive wheel during processing of the lens, based on inputted data and stored data on the shapes of the cups.
摘要:
The invention relates to an eyeglass lens layout device for performing layout to fit an eyeglass lens to an eyeglass frame, and an eyeglass lens processing apparatus with the eyeglass lens layout device incorporated therein. The device include a layout data input system by which layout data are inputted for each of horizontal and vertical layout items with respect to the frame, a memory in which layout methods are stored corresponding to lens types, a designating system by which one of the lens types can be designated; and a controller which retrieves one of the layout methods from the memory and sets the retrieved one of the layout methods for a corresponding one of the layout items, in accordance with the designated one of the lens types.
摘要:
An eyeglass lens grinding apparatus for grinding a periphery of a lens. A processing device has abrasive wheels, and processes the lens while depressing the lens onto at least one of the abrasive wheels rotatingly driven by an abrasive wheel rotating motor. The lens is fixedly mounted to a first lens chuck shaft through a lens fixing cup. A second lens chuck shaft has a lens pressing holder, and is arranged coaxially with respect to the first lens chuck shaft. A rotating device has a motor and a transmission member that transmits rotational force of the motor to the first lens chuck shaft. A chucking device clamps the lens by relatively moving the second lens chuck shaft with respect to the first lens chuck shaft in a direction of an axis of rotation with a moving mechanism. A first detector detects an angle of rotation of the second lens chuck shaft when the second lens chuck shaft is rotatingly driven by the first lens chuck shaft rotated by the rotating device in a state where the lens is clamped by the first and second lens chuck shafts. A controller controls processing based on a result of detection by the first detector.
摘要:
An eyeglass lens is designed to permit the operator to preset by himself the conditions for bevel formation in AUTO mode so that he can perform efficient lens processing. The eyeglass lens grinding apparatus includes frame data inputting section for entering configuration data on an eyeglass frame, layout data inputting section for entering layout data to be used in providing a layout of an eyeglass lens to be processed which corresponds to the eyeglass frame, edge position detecting section for determining data on the edge position of the processed lens on the basis of the frame configuration data and the layout data. The lens grinding apparatus further includes an arithmetic control circuit, a parameter input section, and a sequence program stored in a main program memory. The sequence program allows a user to input or alter the parameters—even when the lens grinding apparatus operates in an auto-processing mode—used to calculate bevel processing data. Allowing a user to input or alter parameters, even in an auto-processing mode, enhances the utility of the lens grinding apparatus. Further, even after the bevel processing data has been calculated on the basis of a user input or altered parameter, the user can, in a forced-processing mode, further alter a portion of the bevel processing data calculated using an altered parameter in the auto-processing mode.
摘要:
In an eyeglass lens grinding apparatus, a material and a process condition of an eyeglass lens to be processed is input. A grinding wheel for grinding the lens is rotated at a variable rotational speed. That is, the lens is processed while variably changing the rotational speed of the grinding wheel in accordance with a preset value of the rotational speed of the grinding wheel based on the input material or a process condition of the lens. The processing, time period can be shortened and the quality of the process face can be improved.
摘要:
An eyeglass lens grinding apparatus which is adapted to be operable with different arrangements of abrasive wheels using a smaller number of software programs that have to be made available separately and which can be managed easily. In the eyeglass lens grinding apparatus, a program having processing sequences associated with different types of abrasive wheels is stored, information about the arrangement of abrasive wheels and their mounting positions is entered, an applicable processing sequence is determined from said program on the basis of the entered information, and the processing of a workpiece lens is controlled on the basis of the determined processing sequence.
摘要:
A subject lens is held by two chuck shafts, which are rotated synchronously by pulse motors during a grinding operation. Chamfering and other grinding wheels are mounted on a rotary shaft of a lens grinding part. A desired grinding wheel for each processing is selected by moving the rotary shaft vertically. In the case of rough processing, the rotary shaft is moved by a pulse motor toward the center of the chuck shafts based on lens frame shape data. In the case of chamfering, the rotary shaft is moved toward the center of the chuck shafts as well as vertically based on chamfering data. To produce part of the chamfering data, a lens measuring section measures the shapes of the front and rear surfaces of the subject lens.