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# Laser light curtain — An infrared laser is located in each upper corner of the whiteboard.
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# and Laser
Its small size and light weight facilitate every day carry and its built-in List of laser applications # Laser sight | laser sight improves aiming under low light conditions ( 2011 ).
# and light
# Luminous: The third bhūmi is named " luminous ", because, for a bodhisattva who accomplishes this bhūmi, the light of Dharma is said to radiate for others from the bodhisattva.
# Radiant: This bhūmi is called " radiant ", because it is said to be like a radiating light that fully burns that which opposes enlightenment.
# Exposure to ultraviolet light: Concentration of ultraviolet light ( particularly UVB light ) from the Sun may have some effect on efficacy of the BCG vaccine.
The CIE 1931 x, y chromaticity space, also showing the chromaticities of black body light sources of various temperatures ( Planckian locus ), and lines of constant # Correlated color temperature | correlated color temperature.
# Telstar Ranger ( model 6046, 1977 ): Four Pong variants ( hockey, handball, tennis, jai alai ) and two gun games ( target, skeet ), black and white plastic case, includes revolver-style light gun and separate paddle controllers.
# Telstar Sportsman ( 1978 ): Similar to Telstar Regent, but with an additional light gun and different setting switches.
# Telstar Marksman ( model 6136, 1978 ): Four Pong variants and two gun games in color, larger light gun with removable stock, fixed paddles, uses AY-3-8512 chip.
# Telstar Gemini ( 1978 ): Four pinball games and two light-gun games in color, light gun, two flipper buttons on left and right sides of case, pinball launch button and field adjustment sliders on top, light gun, uses a MOS Technology MPS 7600-004 chip.
# Telstar Arcade ( 1977 ): Cartridge-based, triangular case includes light gun, steering wheel with gear shift, and paddles, one on each side.
# The laws of light polarization by reflection and refraction, and other quantitative laws of phenomena ;
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