Objective the use of the factorial method in the calculation of lenscombination to correct ametropic eyes.
目的在屈光不正的镜片联合运算中应用及推广因式分解法。
2
Because the power stable, selection of long life laser tube and import lenscombination, make ZT series shake the machine service life and reliability is greatly increased.
由于选配了功率稳定、超长寿命的激光管和进口镜片组合，使得ZT系列刻章机寿命和可靠性大大提高。
3
With large divergence Angle LED light efficiently converges at the optical fiber receiving end demand, an ellipsoid and focusing lenscombination optical system design method is proposed.