 |
No items matching your keywords were found.
|
No items matching your keywords were found.
Laser Diode Light Emitting Diode
Pinpoint LED to substitute a laser?
Does anybody know how to use a LED (light emitting diode) and rig it so that it emits a small beam, like a laser would. I would like to make it safe for children. Obviously, a laser can be dangerous, so I thought it would be good to use a LED.
Any Ideas?
Thanks
You could use an unlensed (flat-top) LED and a convex lens to focus the light into a beam. You need a good quality lens. Even so, you are never going to get a pinpoint light beam like a laser.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
 |
The 5th International Symposium on Blue Laser and Light Emitting Diodes: PSS C v |  |
 |
US $19.77 | 8d 4h 40m |
| Powered by phpBay Pro |
|
|
LightEmitting Diode $68.51 Light emitting diode. Oleg Losev, List of LED failure modes, Organic light emitting diode, Miniature light emitting diode, Solid state lighting, LED lamp, LED power sources, Electrical polarity of LEDs, LED circuit, LED as light sensor Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 74 Publication Date: 2009/10/08 Language: English Dimensions: 5.98 x 9.01 x 0.17 inches |
|
|
Introduction to Light Emitting Diode Technology and Applications $71.13 No Synopsis Available |
|
|
Pacer 20 Diode LED Light $15.95 LED (Light Emitting Diode) lighting gives extra brightness and longer life than conventional bulbs. Pacer's LED Light Kit works well when a light with extra length is needed. It is actually 12 LED lights within 1 larger light. The compact, slimline design allows a great variety of mounting location options. Includes one light. Mounts with two-sided tape Simple two wire installation Long life Low power draw Each light is 8'' L x 5/8'' W x 3/4'' H. Available in Red, Amber, White and Blue* *White and blue lights are an additional $6.00 |
|
|
Pacer 12 Diode LED Light $12.95 LED (Light Emitting Diode) lighting gives extra brightness and longer life than conventional bulbs. Pacer's LED Light Kit works well as a third brake or turn signal indicator. It is actually 12 LED lights within 1 larger light. The compact, slimline design allows a great variety of mounting location options. Includes one light. Mounts with two-sided tape Simple two wire installation Long life Low power draw Each light is 4 5/8'' L x 7/16'' W x 3/4'' H. Available in Red, Amber, White and Blue* *White and blue lights are an additional $2.00 |
|
|
Laser Diode Microsystems $301.11 Laser Diode Microsystems provides the reader with the basic knowledge and understanding required for using semiconductor laser diodes in optical microsystems and microoptical electromechanic systems. This tutorial addresses the fundamentals of semiconductor laser operation and design, coupled with an overview of the types of laser diodes suitable for use in Microsystems, along with their distinguishing characteristics. Emphasis is placed on laser diode characterization and measurement as well as the assembly techniques and optical accessories required for incorporation of semiconductor lasers into complex microsystems. Equipped with typical results and calculation examples, this handon text helps readers to develop a feel for how to choose a laser diode, characterize it and incorporate it into a microsystem. Author: Zappe, Hans P./ Zappe, H. Series Title: Microtechnology and Mems (Hardcover) Binding Type: Hardcover Number of Pages: 355 Publication Date: 2003/10/10 Language: English Dimensions: 9.21 x 6.14 x 0.81 inches |
|
|
Kuryakyn Diode Kit $6.76 " This kit is required when installing LED. lights as turn signals on a motorcycle with a single turn signal indicator light If this diode kit is not installed, power will back feed across the indicator light and all turn signals will ff" |
|
|
DIODE $12 When these electrical items fail there is little choice but to renew - With this genuine Suzuki par.. |
|
|
Organic Light Emitting Diodes (Hardcover) $385.4 Addressing the development of the organic light emitting diode (OLED) based on rare-earth and transition-metal complexes—Europium, Terbium, Ruthenium, and Rhenium—this unique perspective explains how these materials can be used to build organic-LEDs, from chemistry synthesis to device operation and the related charge transfer and confinement. Examining how organic materials can be used to build organic-LEDs, the relationship between the chemistry molecule "design," and state-of-the-art and expected pathways, this intelligent report provides intensive experimental results for scientists and engineers working in this new OLED framework, while maintaining a didactic utility for graduation students and teachers studying optoelectronics. |
|
|
R500 650nm 500mw Red laser light, laser diode $195.88 It's widely used in scientific research, laser printing, spectrum analysis, laser show, etc. |
|
|
Dime Used to Illustrate Miniature Size of the Diode of an Injection Laser $79.99 Dime Used to Illustrate Miniature Size of the Diode of an Injection Laser - Premium Photographic Print |
|
|
Light-Emitting Diode Pioneers : Nick Holonyak, Isamu Akasaki, Oleg Losev, H. J. Round, Shuji Nakamura $7.7 No Synopsis Available |
|
|
Study of Laser Diode and Edfa $111.53 This book basically gives the over view about The properties of erbiumdoped fiber amplifier (EDFA) such as gain and noise figure have been studied. By determining the characteristics of the 980nm, 1480nm 1550nm laser sources and ASE (amplified spontaneous emission) at the output of the amplifier used to determine the gain and noise figure of EDFA. This model allows to follow the signal (1550nm), pump (980nm) and ASE as they propagate along the fiber and determine population inversion .The both forward and backward propagation ASE are important in determining the overall gain and noise figure. For the amplification of more than 80 channels the DWDM (Dense Wavelength Division Multiplexing) has required CBand (15251565)nm and LBand (15651610)nm EDFA.We show that a flat gain spectrum can be achieved in the range from 1565 to 1610 nm when the EDF length, pump power and pump configuration are appropriately chosen. Special care must be taken when selecting the EDF length. Author: Kumar, Pankaj/ Kumar, Chakresh/ Chack, Devendra Binding Type: Paperback Number of Pages: 68 Publication Date: 2011/06/19 Language: English Dimensions: 9.02 x 5.98 x 0.16 inches |
|
|
Blue Ox 6-Amp Diode BX8864 $12.6 Blue Ox Electrical & Wiring in stock now! Read Blue Ox 6-Amp Diode BX8864 customer reviews. AutoAccessoriesGarage.com has the best selection of Blue Ox Towing & Hitches at the lowest prices around. Blue Ox 6-Amp Diode BX8864 are chosen by auto enthusiasts everywhere to personalize their vehicles. Blue Ox Tail Light Wiring Kit available now at AutoAccessoriesGarage. |
|
|
Blue Ox 6-Amp Diode BX88159 $72 Blue Ox Electrical & Wiring in stock now! Read Blue Ox 6-Amp Diode BX88159 customer reviews. AutoAccessoriesGarage.com has the best selection of Blue Ox Towing & Hitches at the lowest prices around. Blue Ox 6-Amp Diode BX88159 are chosen by auto enthusiasts everywhere to personalize their vehicles. Blue Ox Tail Light Wiring Kit available now at AutoAccessoriesGarage. |
|
|
Polymer Light Emitting Diodes Based on Polyfluorenes $138.61 This work is devoted to the study on Polymer Light Emitting Diodes (PLEDs) based on polyfluorenes, a promising class of semiconductive polymers for lightemitting diode applications. It covers theories of PLEDs, literature overview of polyfluorenebased lightemitting diodes, as well as research results by the authors. In this study, several types of PLED devices based on neat polyfluorenes or polyfluorene blends were designed, fabricated, and characterized. The electrical characteristics of two neat polyfluorenes were simulated via using space charge limited current theory for the holeonly case and/or exploiting a commercial software package. Author: Zhang, Qiushu/ Zivanovic, Sandra Binding Type: Paperback Number of Pages: 164 Publication Date: 2010/08/16 Language: English Dimensions: 5.98 x 9.01 x 0.37 inches |
|
|
Monolithic Diode-Laser Arrays $79.9 No Synopsis Available |
|
|
Diode Laser Arrays $89.7 No Synopsis Available |
|
|
Laser Diode Modulation and Noise $145.28 No Synopsis Available |
| Account limit of 2104 requests per hour exceeded. |
LED Conversion: Switch from Halogen to LED, Part 2
What is the source of light for a 7 segment black and white display?
A. fluorescent light behind the screen
B. ambient light
C. a laser
D. Light emitting diodes
E. a glowing phosphor
There are several different technologies that can implement a b/w 7 segment display:
LCD, flourescent display(lowing phosphor), led, MMC, incandescent, (mechanical segments).
Commonly, LCD are used, and the backlighting can be any of those that you list.
Sorry, comments for this entry are closed at this time.