The method is used for the production of a double eyepiece (2) for safety glasses. The double eyepiece (2) comprising two joined-together single eyepieces (13, 14) is injection molded from a plastics material in one piece and in a form immediately ready for use or immediately ready for an optional additional surface coating step. During injection molding, a first eyepiece partial zone (15) having a first optical function, a second eyepiece partial zone (16) having a second optical function which is different from the first optical function, as well as an eyepiece transition zone (17) between the first and second eyepiece partial zones (15, 16) having a continuous transition from the first optical function to the second optical function is introduced into each of the single eyepieces (13, 14), each of which is associated with a respective eye of a person wearing the glasses. During the injection molding procedure, in accordance with standard DIN EN 166, the double eyepiece (2) is provided with a bombardment strength of at least 45 m/s if the double eyepiece (2) is intended for temple safety glasses or with a bombardment strength of at least 120 m/s if the double eyepiece (2) is intended for full vision safety glasses with a headband.本方法係用以製造用於安全眼鏡的雙目鏡。該雙目鏡包含二接合在一起的單目鏡係由一塑膠材料射出成型成一片,並呈一立即可供使用或立即可供用於一選擇添加的表面塗層步驟。當射出成型時,一第一目鏡局部區域具有一第一光學功能,一第二目鏡局部區域具有一第二光學功能係不同於該第一光學功能,及一目鏡過渡區域介於該第一和第二目鏡局部區域之間而具有一由該第一光學功能至該第二光學功能之連續性過渡者,會被納入該各單目鏡中,其各係與一戴著該眼鏡的人之一各別的眼睛相關聯。於該射出成型程序時,依據DIN EN 166標準,若該雙目鏡係欲用於支架安全眼鏡會具有一至少45m/s的轟擊強度,或若該雙目鏡係欲用於具有一頭帶的全視野安全眼鏡則有一至少120m/s的轟擊強度。1‧‧‧製造裝置2‧‧‧雙目鏡3‧‧‧內側模部4‧‧‧外側模部5,6,7,8‧‧‧主表面9‧‧‧第一模局部區域10‧‧‧第二模局部區域11‧‧‧模局部過渡區域12‧‧‧連接腹板13,14‧‧‧單目鏡15‧‧‧第一目鏡局部區域16‧‧‧第二目鏡局部區域17‧‧‧目鏡過渡區域18‧‧‧垂直方向19‧‧‧水平方向20,21‧‧‧模局部區域22,23‧‧‧目鏡局部區域R1‧‧‧曲率半徑
