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Lens

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Optics
Light
Color
Photon
Visual perception
Spectroscopy
Laser
Coherence (physics)
Electromagnetic spectrum
Electromagnetic radiation
Electromagnetic spectrum
Radio waves
Infrared
Visible spectrum
X-ray
Ultraviolet
Black body
Gamma ray
Emission spectrum
Spectral line
Wavelength
Frequency
Polarization (waves)
Doppler effect
Relativistic Doppler effect
Refractive index
Abbe number
Chromatic aberration
Total internal reflection
Speed of light
Absorption (electromagnetic radiation)
Absorbance
Transmittance
Wave–particle duality
Beer–Lambert law
Optical aberration
Eye
Ray tracing (physics)
Diffraction
Interference (wave propagation)
Double-slit experiment
Photometry and Radiometry
Photometry (optics)
Radiometry
Candela
Lumen (unit)
Luminous intensity
Luminance
Geometrical optics
Geometrical optics
Reflection (physics)
Refraction
Dispersion (optics)
Snell's law
Ray (optics)
Angle of incidence
Focus (optics)
Focal length
Radius of curvature (optics)
Cardinal point (optics)
Mirrors
Mirror
Plane mirror
Curved mirror
Parabolic reflector
Lenses
Lens (optics)
Thin lens
Reflectivity
F-number
Vergence (optics)
Specular reflection
Diffuse reflection
Optical axis
Optical fiber
Reflecting telescope
Optical telescope
Spherical aberration
Real image
Virtual image
Aperture
Optical resolution
Optical power
Magnification
Magnifying glass
Fresnel equations
Optical phenomena
Optical phenomenon
Mirage
Moiré pattern
Rainbow
Newton's rings
Optical medium
Power (physics)
Collimated light
Beam divergence
Thin-film optics
Thin-film interference
Soap bubble
Transparency and translucency
Light scattering
Fresnel lens
Huygens–Fresnel principle
Fermat's principle
Optical path length
Phase (waves)
List of light sources
Electromagnetism
Photoelectric effect
Michelson–Morley experiment
Wave propagation
Color perception
Color theory
Color space
Color model
Color wheel
Primary color
Subtractive color
RGB color model
CMYK color model
RYB color model