Hoya Corporation

Hoya Lens Thailand Ltd.

Takashi Daimaru

Masahiro Jinbo

Masahiko Samukawa

Ryosuke Sato

Takao Tanaka

Hidetoshi Nishimura

Toyoji Wada

Takashi Igarashi

Hisanori Akiyama

Akira Hamanaka

Nobuhiko Takeda

Takahiro Suzue

Hiroshi Yoshizaki

Yoshihiko Kikuchi

Naoto Katsuki

Ryo Terai

Noriyasu Itoh

Provided is a block device that mounts a lens shape processing lens holder to a convex surface of a spectacle lens with two alignment reference marks for identifying a distance portion design reference point on a concave surface. The block device includes an imaging unit that images the alignment reference marks of the spectacle lens supported by a support unit from a convex surface side of the spectacle lens, an information processing unit that obtains expected imaged positions of the alignment reference marks imaged by the imaging unit, using information regarding the spectacle lens, when a posture of the spectacle lens supported by the support unit becomes a reference posture suitable for mounting the lens holder, and a display control unit that displays images of index marks indicating the expected imaged positions obtained in the information processing unit and images of the alignment reference marks.

Spectacle lens manufacturing method

Block device, spectacle lens manufacturing method, and program

A lens edging system, including: a spectacle frame measurement device and an order-side terminal device disposed at a spectacle lens order side; and an order-receiving side controller disposed at a spectacle lens order-receiving side, wherein the order-side terminal device and the order-receiving side controller are connected to each other via a communication line, the system further including: an information memory part for storing and holding information regarding a shape of a probe in the spectacle frame measurement device as probe information; and an edging shape calculation part for performing data correction reflecting an abutting mode of the probe indicated by the probe information when lens edging shape data is created at the spectacle lens order-receiving side, wherein a suitable size correction can be performed even when a frame shape of any kind of a spectacle frame is measured by the spectacle frame measurement device by performing the data correction.

Lens edging system, order-side terminal device and lens ordering method

A lens shape measurement device, includes: a rotation unit that rotates a lens supported by a stage; a laser displacement meter; a first moving unit that moves the laser displacement meter in a X-direction; a second moving unit that moves the lens in a Y-direction; and a drive controller that controls a drive of the rotation unit, the first moving unit, and the second moving unit in a mirror reflection state in which an incidence angle of the laser beams incident on a measurement target from the laser displacement meter, and a reflection angle of the laser beams reflected by the measurement target are equal to each other with a normal line of the lens passing through the measurement target set as a reference, for each of a plurality of measurement targets set on an edge of the lens in a rotating direction of the lens.

Lens shape measurement device

In a lens edging system using a lens edgerand an edging control terminal, the lens edgerincludes a calculation switching sectionconfigured to switch a setting of a calculating section so as to select either one of a first calculating sectionand a second calculating sectionfor calculating edging shape data, and a data acquisition sectionconfigured to acquire the edging shape data calculated by the second calculating sectionfrom the edging control terminal, wherein when the calculation switching sectionswitches the setting of a calculating section so as to select the second calculating sectionfor calculating the edging shape data, the edging shape data calculated by the second calculating sectionis acquired by a data acquisition section, and a lens edging sectionperforms edging using the acquired edging shape data.

Edging system of spectacle lens, method for manufacturing spectacle lens, and lens edger

An ordering terminal () installed on an order side of a spectacle lens has a correction function concerning a measurement error measured by a spectacle frame shape measurement device (), and transmits information necessary for machining the spectacle lens including the spectacle frame shape information to a spectacle lens manufacture control device () in a factory. When correcting the measurement error, the circumference of a reference frame () for which a reference circumference as a reference is determined in advance is measured by the spectacle frame shape measurement device (). A measurement circumference obtained on the basis of a measurement value of the circumference is compared with the reference circumference, and a correction value which corrects the spectacle frame shape information such that the measurement circumference approaches the reference circumference is employed as the correction value of the spectacle frame shape measurement device (). A measurement error of the lens frame of a spectacle frame () in which the spectacle lens is to be actually mounted is corrected using the correction value. Hence, the measurement error of the spectacle frame shape measurement device () need not be corrected on the factory.

Spectacle lens supply system, ordering system, and manufacturing method

A lens holder () is attached to a processing target lens () such that a holder center (O) coincides with a processing center position () of the lens. An axial deviation measuring mark () is displayed on the processing target lens () to coincide with a reference position mark () of the lens holder (), and the circumferential surface of the processing target lens () undergoes primary processing. After primary processing, the axial deviation of the processing target lens () is measured from the reference position mark () and axial deviation measuring mark (). When axial deviation exists, the lens holder () is removed from the processing target lens () and the processing target lens () is held again, so that the axial deviation is corrected. After that, the processing target lens () undergoes secondary processing.

Spectacle lens edging method

When a forming a bevel on a lens, the value of the bevel curve is calculated based on the value of the curve of the concave face, a reference axis of the bevel curve is determined to be in the same direction as the curvature of the concave face, a reference position on the peripheral edge of the lens in the first portion having the minimum thickness is determined based on the thickness of the first portion, a correction for the initial reference axis of the bevel curve is obtained, an angle of inclination from the direction of the initial reference axis of the bevel curve is obtained based on the correction and the locus of the bevel is determined based on the value of the bevel curve, the reference position and the angle of inclination.

Method for deciding a bevel curve, method for determining the locus of a bevel, method for processing a lens and apparatus for processing a lens

Method for deciding a bevel curve, method for determining a locus of a bevel, method for processing a lens and apparatus for processing a lens

An apparatus for processing a lens comprising a rotating tool for chamfering used for chamfering a peripheral portion of a spectacle lens, the apparatus comprising: a holding shaft supporting the lens and a lens-holding unit that rotates the holding shaft and displaces the lens towards the finishing unit based on data describing a shape of a lens frame and a rotation angle of the holding shaft; and a means for positioning in an axial direction that displaces the lens in an axial direction of the holding shaft; wherein the rotating tool for chamfering includes a rotating tool having a hemispherical shape, wherein a chamfering angle, or a chamfering amount, is set in accordance with a displacement in the axial direction of the means for positioning in an axial direction and a displacement of the lens-holding unit.

Apparatus for processing a lens

A spectacle frame shape measuring apparatus includes a measurement element holding mechanism. The measurement element holding mechanism holds a measurement element in a substantially loadless state along a frame groove formed in the inner circumferential surface of a rim of a spectacle frame. The measurement element holding mechanism includes a rod, balance spring, and evacuating mechanism. The rod is vertically movable and has an upper end portion on which the measurement element is mounted. The balance spring pushes the rod upward to hold the measurement element at a loading position during shape measurement. The evacuating mechanism regularly evacuates the measurement element to an evacuation position, thereby performing three-dimensional measurement of a rim shape. A spectacle frame shape measuring apparatus holder is also disclosed.

Spectacle frame shape measuring apparatus

A method and apparatus enabling the placement of a mark on a lens at a desired position, easily and rapidly, without damaging the lens. The method comprising (1) the step of measuring a lens in which the optical properties and the reference position of the spectacle lens are measured and (2) the step of processing in which the lens is processed based on the optical information obtained in the step of measuring a lens. In the step of measuring a lens, the optical properties of the lens, such as the prism value, are measured using a desirable position selected as on the uncut lens as the position of measurement. An an optical reference position, such as the optical center, is calculated, a guiding mark is placed at the calculated position the relationship between the mark and the optical reference position is used in subsequent cut processing.

Method for processing a spectacle lens, lens meter, and apparatus for processing a spectacle lens, having lens meter and data of relative positions for processing a spectacle lens

Growing community of inventors

Tokyo, Japan

Takashi Daimaru