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Optics
Illuminance - โ
The rate at which light strikes a surface or falls on a unit area Lm/m^2 or lx - โ
What is illuminance measured in? Complementary colors - โ
Two colors of light that, when combined, produce white light Transparent - โ
A property of a medium that allows that medium to transmit light and reflect a fraction of the light allowing objects to be clearly seen through it Luminous source - โ
An object that emits light Luminous flux - โ
The rate at which energy is emitted from a luminous source Lm - โ
What is luminous flux measured in Malus's Law - โ
States that the intensity of light coming out of a second polarizing filter equals the intensity of polarized light coming out of a first polarizing filter times the cosine, squared, of the angle between the polarizing axes of the two filters Translucent - โ
A property of a medium that allows that medium to transmit light and reflect a fraction of the light, preventing objects from being clearly seen through it Ray model of light -
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A model that represents light as a ray that travels in a straight path whose direction can be changed only by encountering a boundary Primary pigment - โ
Cyan, magenta, and yellow. Each of which absorbs one primary color from white light and reflects two primary colors; can be mixed in pairs to produce the secondary pigments red, green and blue Primary colors - โ
Red, blue and green, each of which absorbs one primary color from white light in reflex to primary colors; can be mixed in pairs to produce the secondary colors yellow, cyan and magenta Secondary color - โ
Yellow, cyan and magenta, each of which is produced by combining two primary colors Secondary pigment - โ
Red, green and blue, each of which absorbs two primary colors from white light and reflects one primary color; can be produced by mixing pairs of cyan, magenta and yellow pigments Polarization - โ
Production of light with a specific pattern of oscillation Diffraction - โ
The bending of light around a barrier Opaque - โ
A property of the medium that allows that medium to absorb light and reflect some light rather than transmitting it, preventing objects from being seen through it Real image - โ
In optical image that is formed by the converging of light rays
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A mirror with the edges curved away from the observer that reflects light from its outwardly curving surface Upright, reduced, virtual image - โ
What kind of image does a convex mirror produce? Diffuse reflection - โ
A scattered, fuzzy reflection produced by a rough surface Magnification - โ
The amount that an image is enlarged or reduced in size, relative to the object Object - โ
A luminous or illuminated source of light rays Specular reflection - โ
A reflection produced by a smooth surface in which parallel light rays are reflected in parallel Frequency - โ
The number of complete oscillations a point on a wave makes each second; measured in hertz (Hz) Chromatic aberration - โ
A lens defect in which light passing through a lens is dispersed, causing an object viewed through a lens to be dispersed with color Index of refraction - โ
Determines the angle of refraction of light as it crosses the boundary between mediums; for a given medium, it is the ratio of the speed of light in a vacuum to the speed of light in that medium; represented by the symbol n Farsightedness - โ
A vision defect in which a person can not see close objects clearly because objects are focused behind the retina
Hyperopia - โ
What is another name for farsightedness? Convex - โ
What type of lens is used to correct farsightedness? Total internal reflection - โ
An optical phenomenon that occurs when light strikes a boundary between two mediums at an angle of incidence that is greater than the critical angle and all light reflects back into the region of the higher index of refraction Dispersion - โ
The separation of white light into a spectrum of colors by such means as a glass prism or water droplets in the atmosphere Concave lens - โ
A diverging lens, thinner at its middle than at its edges, that spreads out light rays passing through it when surrounded by material with a lower index of refraction; produces a smaller, virtual, upright image Achromatic lens - โ
A combination of two or more lenses with different indices of refraction that is used to minimize chromatic aberration Thin lens equation - โ
States that the inverse of the focal length of a spherical lens is equal to the sum of the inverses of the image position and the object position Nearsightedness - โ
A vision defect in which a person can not see distant objects clearly because images are focused in front of the retina Myopia - โ
What is another name for nearsightedness? Concave -
Incoherent light - โ
Light while waves are not in phase Diffraction pattern - โ
A pattern on a screen of constructive and destructive inference of Huygens' wavelets
