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Topic: Light generation

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	The Next Generation of Lights: Electrodeless
		Light from the sulfur lamp is focused by a parabolic reflector so that most of the light enters the light pipe within a small angular cone.
		Light is extracted by a fine and unique pattern of holes in the prismatic material, with the density of the holes varying over the length creating the desired output distribution pattern.
		After passing through the holes, the light is efficiently redirected downward by a secondary micro-replicated prismatic film located on the underside of the light pipe.
	palimpsest.stanford.edu /waac/wn/wn17/wn17-3/wn17-308.html (1132 words)

	Sum frequency light generation method and sum frequency light generation apparatus adapatble for wide-band wavelength ... (Site not responding. Last check: 2007-10-21)
		Generally, the nonlinear optical crystal allowing type 2 phase matching is cut out in the form of a rectangular solid or cylinder containing a plane 13 intersecting the aforementioned phase matching direction 12 and used such that the propagation direction of light coincides with the phase matching direction 12.
		In this case, the sum frequency light "c" is emitted in the direction of the optical axis 16 from an opposite face to the plane 13 of the AANP 8.
		Further, the sum frequency light generation method and the sum frequency light generating apparatus of the present invention are capable of matching a portion in which the wavelength conversion efficiency reaches its peak with transmission wavelength.
	www.patentstorm.us /patents/6697395.html (7356 words)

	Nonlinear optics - Wikipedia, the free encyclopedia
		Nonlinear optics is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the polarization P responds nonlinearly to the electric field E of the light.
		Typically, three-wave mixing is done in a birefringent crystalline material (I.e., the refractive index depends on the polarization and direction of the light that passes through.), where the polarizations of the fields and the orientation of the crystal are chosen such that the phase-matching condition is fulfilled.
		that is, the generated beam amplitude is the complex conjugate of the signal beam amplitude.
	en.wikipedia.org /wiki/Nonlinear_optics (1537 words)

	Infrared Night Vision Goggles (Site not responding. Last check: 2007-10-21)
		The main difference between the two types was that generation 0 used a infrared flashlight and generation 1 used the infrared light generated by the moon and stars (this did not work on cloudy nights!).
		Generation 3 used the same technology as generation 2 but it used gallium arsenide (which is more effiecnent) for the photocathode and also coated the microchannels in an ion barrier to extend the life of the tube.
		When a bright light like a flash light or the head lights from a passing car is directed in the general direction of the night vision system, it gets bombarded with photons, which ends up blinding the user and possibly ruining the phosphor screen.
	home.alfredstate.edu /KussME (883 words)

	Generation Brands
		Generation Brands is the largest decorative lighting company in North America.
		The most successful lighting dealers and showrooms, the most discriminating lighting designers and decorators, and the most demanding end users universally depend on one or more of our brands to serve their customers and their requirements.
		Generation Brands has 12 premier brands currently offering the industry's leading portfolio of fashionable and functional lighting fixtures, ceiling fans, and decorative products for residential and commercial applications.
	www.generation-brands.com (103 words)

	OPTICAL WAVEGUIDE, OPTICAL WAVELENGTH CONVERSION DEVICE, METHOD FOR PRODUCING THE SAME, SHORT WAVELENGTH LIGHT ... (Site not responding. Last check: 2007-10-21)
		Generally, the propagation loss along the optical waveguide, which deteriorates the characteristics of the optical wavelength conversion device, is classified into the loss of higher harmonic wave and the loss of fundamental wave.
		Generally, the proton diffusion distribution in a proton exchange region has a step-shaped pattern upon completion of the proton exchange process, but the pattern is changed to a graded distribution pattern by performing an annealing process after the proton exchange process.
		Specifically, the confinement of light being propagated is weakened by the reduction in the surface refractive index of the second proton exchange region, thereby reducing the wavelength conversion efficiency.
	www.patentstorm.us /patents/6519077.html (18370 words)

	flipcode - Light Mapping - Theory and Implementation (Site not responding. Last check: 2007-10-21)
		If you are really eager to know the results of a light map based lighting technique before you get on with this article, then click here to go to the demo section, where you can download an interactive demo.
		The only difference between a light map and a diffuse map is that, a diffuse map holds plain color values, whereas, a light map holds color values as a result of light(s) affecting the polygons on which this light map was applied.
		Light maps textures are mapped to a triangle/polygon using a unique set of texture co-ordinates known as light map texture co-ordinates.
	www.flipcode.com /articles/article_lightmapping.shtml (4652 words)

	Aurora Tactical (Site not responding. Last check: 2007-10-21)
		Generation 3 is the highest level of night vision technology and retains its clarity even in extremely dark situations.
		Generation 2 may be the choice in situations with higher levels of ambient light.
		Light reflected from the subject strikes a multialkali coated photocathode, which produces electrons where the light strikes it.
	www.auroratactical.com /generation.htm (859 words)

	Intro1 (Site not responding. Last check: 2007-10-21)
		Light from the sulfur bulb is discharged by funneling it through a parabolic reflector, into an acrylic light pipe.
		The typical lamp consists of light emitting phosphor sandwiched between two conductive electrodes, one of the electrodes is optically clear allowing light to escape.
		At issue is their lights harsh yellow color, which restricts their use to applications where asthetics are a low priorit, such as security and street lighting and general exterior lighting.
	www.calpoly.edu /~cm/studpage/sblemker/introduction.html (723 words)

	How Night Vision Works - Light Amplification - Infrared Night Viewing - Morovision
		Light amplification technology takes the small amount of light, such as moonlight or starlight, that is in the surrounding area, and converts the light energy (scientists call it photons), into electrical energy (electrons).
		Objects that appear light during the day but have a dull surface may appear darker, through the night vision unit, than objects that are dark during the day but have a highly reflective surface.
		Night vision is very responsive to reflective ambient light; therefore, the light reflecting off of fog or heavy rain causes much more light to go toward the night vision unit and may degrade its performance.
	www.morovision.com /hownightvisionworks.htm (1070 words)

	Patent 4803370
		This light is generated by heating elements to a temperature in which emission in the infrared spectrum is particularly efficient.
		The lens 74 is a lens for focusing light from the light emitting unit 70 in a manner conventional in the art.
		The light is focused through a chopper to reduce DC drift in the electronics of the circuit and transmitted through flow cells to detect carbon dioxide.
	www.freepatentsonline.com /4803370.html (5017 words)

	Patent 4119889
		A layer of fluorescent light emitting phosphor is disposed on the interior surface of the outer wall.
		In an electrodeless fluorescent lamp of the type including a sealed light transmissive envelope including an outer wall and an inner wall, it is a still further object of the present invention to coat the outer surface of the inner wall with a layer of an electrically insulative, ultraviolet light reflective material.
		The ionized mercury vapor predominantly emits ultraviolet light having a wavelength of 253.7 nanometers.
	www.freepatentsonline.com /4119889.html (2496 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		Storage rings were the preferred solution for the 3rd generation light sources with energies ranging from 1.5 to 2.5 GeV for VUV soft X-ray and from 6 to 8 GeV for hard X-ray sources.
		This small difference of a factor 10 left between 3rd and 4th generation machines is presumably at the expense of a significant lengthening (factor 2 to 3) of the circumference.
		Contrary to what happened with the 3rd generation light sources, the expected performances would not be dramatically superior to those of upgraded light sources of the previous generation.
	www.iucf.indiana.edu /~sylee/icfa10/icfa10-ws10.html (1554 words)

	Funding is approved for next-generation light source :11/02
		The LCLS project passed the Department of Energy's Critical Decision 1 process in October 2002, and $6 million is allocated in President Bush's budget for FY03 for the start of engineering design activities.
		The light will have full spatial coherence and enhanced temporal coherence and be "laser-like," enabling many new types of experiments.
		When the magnetic field of the undulator, the electron beam and the photons are tuned into exquisite harmony with one another, the electric field of the X-ray photons will "herd" the electrons in much shorter bunches than have been achieved before.
	www.stanford.edu /dept/news/pr/02/lcls3.doc1120.html (691 words)

	"1914 Generation" Discarded By Watchtower
		While the passing of this "generation" necessitated a change of interpretation, there has apparently been some vacillation on the part of their Governing Body in recent years regarding just how they were going to reinterpret the "1914 generation" doctrine.
		These were meant to prepare the way for "new light" on their teaching that we are living in the generation that will see the end of the world, with a view to changing such understanding.
		In contrast, we as Jesus' disciples refuse to be molded by the life-style of "this generation." -WT, 11/1/95, p.
	www.freeminds.org /history/new1914.htm (1568 words)

	Lighting Reference Guide – Generation of Light
		Luminescence is the emission of light not ascribed directly to incandescence.
		Electroluminescence is the emission of light when low voltage direct current is applied to a semi–conductor device containing a crystal and a p–n junction.
		In the fluorescent lamp, the ultraviolet radiation resulting from the gas discharge is converted into visible radiation by a phosphor coating on the inside of the tube.
	oee.nrcan.gc.ca /publications/equipment/lighting/section4.cfm?attr=20 (344 words)

	Highly efficient white light generation from barium fluoride
		We demonstrate highly efficient white light generation by focusing 45 fs long pulses of 800 nm laser radiation with 1 mJ energy onto a 10 cm long barium fluoride crystal.
		By employing line focusing geometry at low intensity, we show that white light fringes are formed with a single laser beam, indicative of the coherent property of the white light that is produced.
		L Chin, S. Petit, F. Borne, K. Miyazaki, “The white light supercontinuum is indeed an ultrafast white light,” Jpn.
	www.opticsexpress.org /abstract.cfm?URI=OPEX-12-4-695 (489 words)

	Globeinvestor.com: Diversified Readies its Newly Designed, Second Generation, Therma-Light Reflective Technology for ...
		The Company is in the process of raising the required funds to build this second generation unit, and intends to commence construction of its second generation demonstration unit within thirty days of closing the financing.
		The first generation unit sold in Korea was designed specifically for solar simulation and testing purposes and can only operate within a clean-room (relatively dust-free) or lab-type environment - this places severe limitations on the number of industries and applications it can be used for.
		Diversified's second generation Therma-light Reflective Technology will be capable of being used for multiple industrial and commercial applications including solar simulation, a proven market for the technology, without having to be used exclusively in a clean-room environment.
	www.globeinvestor.com /servlet/WireFeedRedirect?cf=GlobeInvestor/config&vg=BigAdVariableGenerator&date=20040330&archive=ccnm&slug=0330028n (918 words)

	Fluorescent Light Bulbs \| Energy Efficient Light Bulbs
		There are two basics types of light bulb, fluorescent and incandescent light bulbs.
		Fluorescent light bulbs are energy saving bulbs that screw into a regular light socket or lighting fixture.
		In comparison to incandescent light bulbs, fluorescent bulbs last between four and ten times longer and use approximately one quarter less energy.
	www.servicemagic.com /article.show.The-Newest-Generation-of-Light-Bulbs.13642.html (465 words)

	Loctite® Nuva-Sil® \| About
		The next generation of Loctite® Nuva-Sil® Light Cure Silicones are your power tools of choice when you need to increase process speeds, eliminate work-in-progress, and reduce overall costs of your production process.
		The improved curing properties of the next generation Loctite® Nuva-Sil® Light Cure Silicones also allow for 8-times greater cure depths compared to previous generations of light cure silicones – up to 2 inches in as little as 90 seconds.
		In addition, each of the next generation Loctite® Nuva-Sil® formulations are fluorescent, allowing for easy in-line detection of the adhesive/sealant for quality purposes.
	www.nuvasil.loctite.com (182 words)

	Molecular Genetics of Kinesin Light Chains: Generation of Isoforms by Alternative Splicing -- Cyr et al. 88 (22): 10114 ...
		Functions of the light chains are undetermined, although evidence suggests they interact with membrane surfaces.
		Three distinct kinesin light chain cDNAs were cloned and sequenced from rat brain, and they were found to result from alternative splicing of a single gene.
		Synthesis of multiple light chains, differing from one another in primary structure, could provide a means of generating multiple, functionally specialized forms of the kinesin holoenzyme.
	www.pnas.org /cgi/content/abstract/88/22/10114 (700 words)

	Blue light Generation by quasi-phase-matched frequency doubling in thermally poled optical fibres
		After poling in vacuum and in air, samples were tested for evidence of SH generation using a mode-locked and Q-switched Nd:YAG laser operating at 1064 nm.
		The maximum blue light detected was 20 pW, corresponding to about 200 mW of infrared pump in the fibre core.
		The maximum blue light power detected was about 400 pW, corresponding to a fundamental power in the fibre of 100 mW.
	www.ecs.soton.ac.uk /publications/rj/1995-1996/ofg/pgk/paper.htm (1628 words)

	Discover Brookhaven
		An image of ultraviolet light with a wavelength of 266 nanometers that was recently generated by the Deep Ultraviolet Free-Electron Laser.
		In looking for a next-generation light source, accelerator physicists at Brookhaven and elsewhere have been researching methods to increase intensity and take even more advantage of other characteristics of light.
		Ultimately, the DUV-FEL will generate sub-picosecond pulses of deep ultraviolet light with a wavelength of 88 nanometers (nm) having a peak intensity that is 10 million times greater and pulses that are up to 1,000 times shorter than light produced by a synchrotron.
	www.bnl.gov /discover/Fall_03/FEL_1.asp (620 words)

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