Together with Isamu Akasaki and Hiroshi Amano, he is one of the three recipients of the 2014 Nobel Prize for Physics "for the invention of efficient blue light-emitting diodes, which has enabled bright and energy-saving white light sources".
Herein, who invented LED technology?
Who is the inventor of LED bulb?
In October 1963, TI announced the first commercial hemispherical LED, the SNX-110. The first visible-spectrum (red) LED was developed in 1962 by Nick Holonyak, Jr. while working at General Electric. Holonyak first reported his LED in the journal Applied Physics Letters on December 1, 1962.
In 1962 while working for General Electric, Nick Holonyak, Jr., invented the first visible-spectrum LED in the form of red diodes. Pale yellow and green diodes were invented next.
LED TV is a type of LCD television that uses light-emitting diodes (LEDs) to backlight the display instead of the cold cathode fluorescent lights (CCFLs) used in standard LCD televisions. LED TVs are more formally known as LED-backlight LCD television. Edge-lit LED displays can be very thin.
An LED monitor (short for Light Emitting Diode) or LED display is a flat screen, flat panel computer monitor or television. The actual difference between this and a typical LCD monitor is the backlighting. The first LCD monitors used CCFL instead of LEDs to illuminate the screen.
A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.
CFL vs LED Bulbs. CFLs use 25-35% of the energy used by incandescent bulbs, but if you really want to make the biggest environmental impact on the environment, choosing LEDs is the way to go. Residential LEDs, especially those rated by ENERGY STAR, use 75% less energy and last 25 times longer than incandescent lighting
You probably know that LED bulbs run dramatically cooler than their incandescent cousins, but that doesn't mean they don't produce heat. LED bulbs do get hot, but the heat is pulled away by a heat sink in the base of the bulb.
Let's take a look at why it is highly unlikely that an LED bulb will overheat and cause a fire to break out, and what you can do to minimise your risk of electrical fire. LED light bulbs might be hot to the touch, but they are nowhere near as hot as CFL, halogen or incandescent bulbs.
Increasing concern that “light pollution” caused by artificial lighting that reduces the production of the hormone melatonin by the brain's pineal gland can cause cancer and other diseases has led to new research into which types of electric bulbs cause less potential risk.
We must have lighting at night, not only in our homes and businesses, but also outdoors on our streets. The need for energy efficiency is serious, but so too is minimizing human risk from bad lighting, both due to glare and to circadian disruption. LED technology can optimize both when properly designed.
This is not the first time energy-saving bulbs have been criticised – fluorescent bulbs emit dangerous UV light. Eco-friendly LED lights may damage your eyes, according to new research.A study has discovered that exposure to LED lights can cause irreparable harm to the retina of the human eye.
A vision researcher from Complutense University in Madrid reports that exposure to LED lights can cause irreparable damage to the retinas of the human eye, UPI reports. "Eyes are not designed to look directly at light — they are designed to see with light," Sánchez-Ramos said.
Light emitted by LEDs are harmful to our eyes. There is a myth that LED lights harm our eyes and even can cause blindness. Of course, if you stare directly at a LED bulb for hours, they, just as any other artificial light source, will be harmful to your eyes. But if you use LEDs normally, they are completely safe.
Yields! With a quality LED grow light and an average-to-good grow, you can expect yields of about 0.5g/watt. It depends a lot on strain, and pro growers can yield even more, but that's a good rule of thumb. LEDs are often compared to HPS grow lights and each type of grow light has pros and cons for cannabis growers.
A range of bulb types can be used as grow lights, such as incandescents, fluorescent lights, high-intensity discharge lamps (HID), and light-emitting diodes (LED). Today, the most widely used lights for professional use are HIDs and fluorescents.
Horticultural LED grow-lights produce only the wavelengths most utilized by plants, so you may want to look for these bulbs rather than buying ones for general use. Halogen lights can also provide full-spectrum light, but like incandescents they put off a lot of heat and are less energy-efficient than fluorescents.
“LEDs do not give off heat.” It is true that LEDs do not emit as much heat as other sources of light: that's because they are so energy efficient. However, LED fixtures still need to be designed to dissipate heat; otherwise, they will fail prematurely.
In one sense this is true: LEDs are cool to the touch because they generally don't produce heat in the form of infrared (IR) radiation (unless of course they are IR LEDs). IR radiation heats the enclosures and surroundings of incandescent bulbs and other sources, making them hot to the touch.
They take less energy to run, in fact quite a bit less. LED aquarium lighting uses up to 80% less electricity than other aquarium lights. They also do not generate the heat that fluorescent light bulbs do. LED lights can be dimmed and programmed, allowing for a natural dimming at sunset and the reverse at sunrise.
Most fish require both periods of light and darkness. Aquarium lights can illuminate fish colors, make it easier to spot tank problems and regulate your fish's sleeping and eating. All fish need periods of darkness, and turning the lights off at night will help you mimic your pet's natural environment.
Final Say on Using LEDs As Grow Lights. As you can see, LED lights should be considered as one of the best LED grow lights for your aquarium plants. They are easy to maintain, provide great controllable light to stimulate plant growth, are cost effective, energy efficient and will outlast any bulb system.