refractive optics
(1)折射光学
(2)折射光元件

• Lorentz coefficient
• Lorentz field
• Lorentz force
• Lorentzian curve
• Lorentz line shap
• Lorentz-Lorenz equation
• Lorentz-Lorenz formula
• Lorentz number
• loss
• loss by one path
• loss factor
• loss-free medium
• loss-free reflectivity mechanism
• lossless network
• lossless uniform fibre
• loss-modulated laser
• loss of resonator
• loss paer pass
• loss source
• Loss tube splicer
• Lossv medium
• lossy medium
• loudspeaker
• loupe
• louver shutter