Drill jig for spectacle lens manufacture jig thereof, method of drilling for spectacle lens, and spectacle lens
AssigneeHoya Corporation
InventorShigeru Watanabe
Life of this patent
Estimating the term…
Abstract
A drill jig for a spectacle lens forms a closed-end hole in an edged face of the spectacle lens which extends inside the lens, a manufacture jig thereof, a method of drilling a spectacle lens, and a spectacle lens. The drill jig is composed of a jig body and a plurality of support members attached to the jig body. The spectacle lens is inserted and tightly retained in an opening of the jig body and supported by a plurality of the support members. A drill of a drill press, on which the drill jig is set, touches the edged face of the spectacle lens while being guided by a guide portion to thereby form the closed-end hole in the edged face.
Claims21
A drill jig for a spectacle lens comprising:
- a holding portion for retaining a meniscus edged spectacle lens;
- and
- a guide portion for guiding a drilling instrument for drilling a closed-end hole in an edged face of the spectacle lens which extends inside the lens.
A method of drilling a spectacle lens in which a closed-end hole for inserting a component of a spectacle frame is formed in an edged face of the spectacle lens and extends inside the lens, comprising the steps of:
- providing, in a drill jig retaining the spectacle lens, a support portion which abuts an outer circumferential edge of the spectacle lens to support the spectacle lens and a guide portion for guiding a drilling instrument for forming the closed-end hole, said spectacle lens having a convex face which is oriented downward;
- and
- drilling the closed-end hole to extend from the edged face of the spectacle lens towards the insides of the spectacle lens while the guide portion is guiding the drilling instrument,
- wherein a side face of the drill jig opposite a guide portion side is an inclined face which is perpendicular to the guide portion and the closed-end hole is drilled by orienting the inclined face on a horizontal bed of a processing device having the drilling instrument and guiding the drilling instrument in a vertical direction through the guide portion.
A drill jig for a spectacle lens comprising a jig body comprising a holding portion for retaining a meniscus edged spectacle lens by a holding force which acts on an edged face of the spectacle lens in a direction towards the inside of the lens, said holding portion comprising a plurality of support portions, each of which is inclined with respect to the direction of the holding force and supports the spectacle lens, a through-hole shaped opening corresponding to a lens shape formed in said jig body and a guide portion guiding a drilling instrument for drilling a closed-end hole through the edged face which extends inside of the lens, wherein said jig body additionally comprises a slit which extends from an exterior face of said jig body to said opening and an elastic member having an elastic tightening force acting in a direction that contracts a width of the slit and tightly retains the spectacle lens fitted in said opening, inside said opening.
A method of drilling a spectacle lens in which a closed-end hole for inserting a component of a spectacle frame is formed in an edged face of the spectacle lens and extends inside the lens, comprising the steps of:
- providing, in a drill jig retaining the spectacle lens, a support portion which abuts an outer circumferential edge of the spectacle lens to support the spectacle lens and a guide portion for guiding a drilling instrument for forming the closed-end hole, said spectacle lens having a convex face which is oriented downward;
- and
- drilling the closed-end hole to extend from the edged face of the spectacle lens toward the insides of the spectacle lens while the guide portion is guiding the drilling instrument,
- wherein an opening which is formed in and passes through the drill jig, retains the spectacle lens, has eyebrow-side, cheek-side, nose-side and ear-side periphery portions in the vertical and lateral directions of the spectacle lens, the support portion and the guide portion are disposed in each of the nose-side periphery portion and earside periphery portion, the drill jig additionally comprises a slit extending from the exterior face of the drill jig to said opening, an elastic member changes the width of the slit by an elastic tightening force and the closed-end hole is drilled in the spectacle lens while it is fitted in the opening and retained by the elastic tightening force caused by the elastic member.
A method of drilling a spectacle lens in which a closed-end hole for inserting a component of a spectacle frame is formed in an edged face of the spectacle lens and extends inside the lens, comprising the steps of:
- providing, in a drill jig retaining the spectacle lens, a support portion which abuts an outer circumferential edge of the spectacle lens to support the spectacle lens and a guide portion for guiding a drilling instrument for forming the closed-end hole, said spectacle lens having a convex face which is oriented downward;
- and
- drilling the closed-end hole to extend from the edged face of the spectacle lens towards the insides of the spectacle lens while the guide portion is guiding the drilling instrument,
- wherein the drill jig comprises a jig body having a holding portion for retaining the spectacle lens and a support member attached to the jig body and provided with the support portion and the guide portion, the support member is movable forward and backward with respect to the spectacle lens, which is retained by the holding portion of the jig body, the drilling instrument is guided by the guide portion of the support member and the closed-end hole is drilled by moving the drilling instrument towards the spectacle lens until a stopper, which is attached to the drilling instrument, touches the support member.
A method of drilling a spectacle lens in which a closed-end hole for inserting a component of spectacle frames is formed in an edged face of the spectacle lens and extends inside the lens, comprising the steps of:
- providing, in a drill jig retaining the spectacle lens, a support portion which abuts an outer circumferential edge of the spectacle lens having a convex face oriented downward, to support the spectacle lens, and a guide portion for guiding a drilling instrument for forming the closed-end hole;
- and
- drilling the closed-end hole to extend from the edged face of the spectacle lens towards the insides of the spectacle lens, while the guide portion is guiding the drilling instrument.
A drill jig for a spectacle lens comprising a holding portion for retaining a meniscus edged spectacle lens by a holding force which acts on an edged face of the spectacle lens in a direction towards the inside of the lens;
- a plurality of support portions, each of which is inclined with respect to the direction of the holding force and supports a lens corner which is formed by the edged face and an optical surface of the spectacle lens;
- and a guide portion for guiding a drilling instrument for drilling a closed-end hole through the edged face which extends inside of the lens.
Dependencies are inferred from the claim text.