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渐晕
离轴越远的斜光束能够通过光学系统的有效孔径越小,由此带来的像面由中心到边缘逐渐变暗的现象。
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渐晕,光损失
Astronomy
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optical frequency standard
optical functional composites
optical functional materials
optical function crystals
optical gain
optical gain, light gain
optical galaxy
optical gate
optical glass
optical glass fiber
optical glow
optical goniometer
optical grating transducer
Optical Gravitational Lensing Experiment
optical grinding
optical guidance
optical gyroscope
Optical Hawaiian Array for Nanoradian Astronomy
optical heterodyne
optical heterodyne detection
optical holographic recording materials
optical holography
optical homodyne
optical horizon
optical hybrid integrated circuit
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