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