pbt熔点测试，透光率测试

机械类Mechanical preparative test

尺寸测试 Dimensional tolerances

热稳定性 Dimensional stability at elevated temperature

鼻梁屈曲Bridge deformation

疲劳测试 Endurance test

镜片保留 Lens retention characteristics

Test for resistance to perspiration

Test for resistance to optical radiation

Test for resistance to ignition