Review of Short Phrases and Links|
This Review contains major "Light"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- Light is a form of radiant energy that you can detect with your eyes.
- Light is a complex phenomenon that is classically explained with a simple model based on rays and wavefronts.
- Light is used to form the shorting conductive links, shown as clear, in the DX medium by making the links conductive in the manner earlier described.
- Light is a very complex phenomenon, but in many situations its behavior can be understood with a simple model based on rays and wave fronts.
- Light is a form of energy - Light travels in waveform in short wavelengths.
- As is well known in the optical arts, etendue relates to the amount of light that can be handled by an optical system.
- However, this also means that uniformized light emerges at high incident angles, which are not favorable at dichroic separator 27.
- The light pipe is designed for a projector system.
- The light gathered by the light pipe is guided to the image device through the exit pupil.
- In the above-cited embodiment, the length of the light pipe 40 is 25 mm (0.98425 inches) and the arc length of the arc lamp 54 is 1.8 mm (0.0709 inches).
- The filiment 3 and its supporting structure 2 are of standard light bulb construction.
- The light bulb envelope consists of three sections: a sperical segment 6, the frustum of a right cone 5, and a segment of an oblate spheroid 4.
- From Snell's law it can be seen that the angle of refraction of light in a prism depends on the refractive index of the prism material.
- When light strikes a rough or granular surface, it bounces off in all directions due to the microscopic irregularities of the interface.
- Polarization by scattering is observed as light passes through our atmosphere.
- The curved turning mirror directs the projected image to a light collimator, such as a transmission screen.
- As light enters or exits the sealed chamber it traverses the window.
- The camera and light source are placed close together on either side of the focus, aimed at the mirror.
- A polychromatic light source 20 directs source illumination through uniformizing optics 22.
- The vector for partially polarized light lies within the sphere.
- It utilizes polarized light to characterize material properties.
- The resulting mixture, called a polariton, travels with a speed different from light.
- Before the advent of special relativity, it was believed that light travels through a medium called the luminiferous aether.
- The excitation light travels through specimen slide 107 and illuminates specimen 111.
- Because light travels at a large but finite speed, it takes time for light to cover large distances.
- In nature, a light source emits a ray of light which travels, eventually, to a surface that interrupts its progress.
- Among examples of electronic projection apparatus that utilize LCD spatial light modulators are those disclosed in U.S. Pat.
- Because dichroic combiner 26 handles telecentric light, there is minimal tendency for color shading across magnified real image I due to angular variances.
- Modulated reflected light is outputted from the reflective spatial light modulator 122.
- Each cervical concentrator collimator 1 is used to produce a separate collimated beam 16 for each pixel of the light valve array 26.
- In reality, any combination of three things might happen with this light ray: absorption, reflection, and refraction.
- If the fall-off in z is much slower than in x, the light ray path is still almost periodic, and the above adiabatic invariance still applies.
- The distal segment 2310 has a light-shaping contour 2315 formed into its end face adjoining the primary delivery fiber.
- As light propagates within the fiber core towards this distal tip, it encounters the special surface.
- Magnifying relay lens 28 is double-telecentric, so that the modulated light beam directed toward dichroic combiner 26 is in telecentric form.
- If the image is produced by the classic polygon galvo approach then the image is modulated in the light valve.
- The Fizeau-Foucault_apparatus ( 1850) was designed by the French physicists Hippolyte Fizeau and L-on Foucault for measuring the speed of light.
- Dichroic coatings reflect and transmit light as a function of incident angle and wavelength.
- The light generated by the light source is guided to the light pipe through the entrance pupil.
- Please refer to FIG. 3. FIG. 3 is the incident angle distribution of the light incident upon the entrance pupil 18.
- Fresnel reflection occurs when light moves from a medium with one index of refraction into a second medium with a different index of refraction.
- When light reflects off a material denser (with higher refractive index) than the external medium, it undergoes a 180-- phase reversal.
- Total Internal Reflection occurs when light hits a medium boundary at a steep angle.
- A simple way to remove the correlation between the reflected light and the transmitted light, is to use a fiber optic to recycle the light into the etalon.
- Secondly, an additional detector is necessary to observe the reflected light, and that is an additional complication to the interferometric system.
- Newton's corpuscular theory implied that light would travel faster in a denser medium, while the wave theory of Huygens and others implied the opposite.
- Later, Augustin-Jean Fresnel independently worked out his own wave theory of light, and presented it to the Acad--mie des Sciences in 1817.
- Thus, blue light, with a higher refractive index, will be bent more strongly than red light, resulting in the well-known rainbow pattern.
- Likewise, dichroic combiner 26 preferentially combines red and blue light having S-polarization with green light having P-polarization.
- Explained the blue colour of the sky and red sunsets as being due to the preferential scattering of blue light by molecules in the earth's atmosphere.
- The light in the low-index layer 81 enters the layer 82 and is redirected into ambient.
- These layers 40 and 83 can increase light uniformity or broaden the angular distribution into ambient.
- Therefore, the reflector can simplify design of the light redirecting layer 82 when the desired output angular distribution is unimodal.
- In one preferred embodiment shown in FIG. 10, the light redirecting layer 10 makes use of flat facets 111 such that the output light is highly collimated.
- In some applications it is desired to illuminate a single LCD panel selectively with either ambient light or by active back-lighting.
- Even without damage, minimum light intensity translates to minimum intrusive attributes.
- Thus, the light gathering efficiency is improved, and the light intensity is increased.
- Generally, the less light lost out the pavilion the better.
- The combined lenses diffract light beams 186 and 190, propagating through planar relay 90, into collimated light beams impinging on pupil 94.
- The polarized light exits the input polarizer and enters the Faraday rotator.
- The polarized light then exits the output polarizer and reenters the optical element of the Faraday rotator.
- Examples of non-imaging optical devices include optical light guides, non-imaging reflectors, non-imaging lenses or a combination of these devices.
- We then consider light traveling from these points at a number of critical angles.
- It is an additional object of the invention to provide a novel optical device for providing collimated polarized light illumination from the device.
- It is still another object of the invention to provide a novel tapered luminaire device for controlled transmission or concentration of light.
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