MANUFACTURING DEVICE AND MANUFACTURING METHOD OF SPECTACLE LENS

• Main Authors: SHIMIZU HIROSHI, SAGAWA MASAHIKO, SUNAGAWA YUKIAKI
• Format: Patent
• Language: English; Japanese
• Published: 07.05.2020
• Subjects: DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; PERFORMING OPERATIONS; POLISHING; TRANSPORTING

To provide a technique which suppresses the generation of shaving chips of a low melting point metal member (alloy).SOLUTION: A manufacturing device 1 of a spectacle lens includes: a holding tool holder 21 which holds a holding tool L with a lens material having an alloy 102 being a low melting point metal member, a lens material 100 having an optical surface fastened to the alloy 102 and a holding tool 104 fastened to the alloy 102 on the opposite side to the lens material 100 with the alloy 102 held therebetween; a holding tool holder driving part 22 which rotates the holding tool holder 21 with the thickness direction of the lens material 100 as a rotational axis; and an alloy melting part 41 which melts the alloy 102 while changing the position by following an outer edge of the alloy 102 when the holding tool L with the lens material contacts the alloy melting part 41 while being rotated by the holding tool holder driving part 22. There is also provided its pertinent art.SELECTED DRAWING: Figure 4 【課題】低融点金属部材（アロイ）の削り滓の発生を抑制する技術を提供する。【解決手段】低融点金属部材であるアロイ１０２と、アロイ１０２に固着する光学面を有するレンズ素材１００と、アロイ１０２を挟んでレンズ素材１００とは反対側にてアロイ１０２と固着する保持具１０４と、を備えたレンズ素材付き保持具Ｌを保持する保持具ホルダ２１と、レンズ素材１００の厚さ方向を回転軸として保持具ホルダ２１を回転させる保持具ホルダ駆動部２２と、レンズ素材付き保持具Ｌが保持具ホルダ駆動部２２により回転しながらアロイ溶解部４１に接触したときに、アロイ１０２外縁に追従して位置変動しつつアロイ１０２を溶解させるアロイ溶解部４１と、を備えた、眼鏡レンズの製造装置１およびその関連技術を提供する。【選択図】図４