helix angle tester
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- diffuse reflectance light
- self-sagging
- beamsplitting blocks
- spatially bound function
- aberration blur circle
- tracking laser radar
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- Sonnar lens
- plastic-base mirror
- spherical aberration
- optical second harmonic generation
- pseudocontinuum
- collisionless multiple-photon laser excitation
- laser
- transit-time lidar velocimeter
- Infrared spectroscopy
- metal lens
- Acoustooptic Bragg diffraction
- astro-compass
- time-resolved interference spectroscopy