three-component zoom lens
三组式变焦距镜头

• optics Kerr cell
• optics of liquids
• optics of metals
• optics of microdensitometry
• optics of superconductor
• optics of thin film
• optidress
• optidress projector scope
• opti-electronic antenna
• optimal
• optimal coupling
• optimal decoupling
• optimal filter
• optimal mode volume
• optimeter
• optiminmeter
• optimization
• optimizing
• optimum condition
• optimum efficiency
• optimum magnification
• optimum reflectivity
• optimum resolution
• optimum sensitivity
• optist