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Laser diffraction analysis is originally based on the Fraunhofer diffraction theory, stating that the intensity of light scattered by a particle is directly proportional to the particle size. [4] The angle of the laser beam and particle size have an inversely proportional relationship, where the laser beam angle increases as particle size ...
Light-Minder, which would turn the fan's light kit off two hours after being turned on; Safe-Exit, which gave the user 30 seconds to exit the room while the fan's light kit gradually dimmed to off; Fan-Minder, which was intended to be used as the user slept to gradually lower the fan speed as the room temperature fell during the night.
A technique that is commonly employed in these devices is cascading, first proposed in 1994: [5] The "first-order" laser light that is generated from the pump light in a single frequency-shifting step remains trapped in the laser resonator and is pushed to such high power levels that it acts itself as the pump for the generation of "second ...
In 1967, in response to industry demands, she founded and launched Optical Spectra. In 1982 the magazine's name was changed to Photonics Spectra to reflect the growing influence of these new light-based technologies. [1] Today, the worldwide distribution of Photonics Spectra is over 100,000 copies. [2]
The patent covered “the amplification of light by the stimulated emission of photons from ions, atoms or molecules in gaseous, liquid or solid state.” [4] In total, Gould obtained 48 patents related to the optical amplifier [5] that covered 80% of the lasers on the market at the time of issuance.
This spectral region can contain about 10% of the total emitted light. [citation needed] Light intensity ranges from 20,000 to 500,000 cd/cm 2. An example is the "XBO lamp", which is an OSRAM trade name for a pure xenon short-arc lamp. [11] For some applications, such as endoscopy and dental technology, light guide systems are included.
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