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It’s been hot here in the northeast with temperatures expected to be in the triple digits for the next three days. We’ve been running the air conditioning a lot and last night the power went out — undoubtedly because everyone else in the area is doing exactly the same thing.
This turned out to be the perfect chance to test the new Light-O-Matic app ($0.99, App Store) exclusively for iPhone 4.
Previous iPhone “flashlight” apps were pretty pathetic, simply turning the screen white, with some silly other features grafted on. I mean come on, you can do the same thing by opening the Mail app.
Light-O-Matic is actually quite useful because it uses the LED flash on the rear of the iPhone 4 as the flashlight — not the screen. And last night I was able to find my way to the bedroom because of it. The app has several other features too (strobe, safety mode, morse code), but let’s face it, you want it for the flashlight.
There’s an interesting backstory. Apple originally denied flashlight appsthat used the LED on the new i4 for ”inappropriate use of hardware”
Apple blocked all the LED flash light apps because they did not expect developers to by pass the camera feed and just use the lights. Battery drain was also another major concern. So, they met up and discussed it and decided to let them through, but all devs had to add a disclaimer to their iTunes Store description about battery drain.
Apple finally relented allowing apps to use it with one proviso: developers must include a disclaimer that continued use of the iPhone’s LED may dramatically decrease battery life. Well, duh.
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Doing things is much simpler when you have both hands free, especially in the dark. You'll experience a huge benefit whether you're under the hood of a car bonnet or setting up camp in the woods with an LED head torch. Trying to do something such as light a campfire or find your way in the dark is much easier when you can see what's in front of you.
Using a flashlight takes up one hand which isn't ideal in situations when you could do with to using two hands. If you want both hands free when operating a torch, you will find an LED head torch perfect for the job. With a head light you can do things easily around the camp even when it gets dark.
These days, LED head lights are incredibly advanced with very secure and versatile straps. They provide a snug fit that prevents any slippage, so you can rest assured that when carrying out tasks your lamp will stay on you head. A number of models available give you the capability of changing the power setting. Since the environment and natural light levels are always changing, this can be extremely useful.
Our eyes take a long time to adjust to the darkness and even when they're fully adjusted we still can't see that well. Unfortunately this makes us quite ill-equipped when camping since there are many dangers to be aware of, especially walking around at night. If you want more control on light direction, there are LED head torches that give you the ability to adjust the light's position. For jobs that require a lot of focus and accuracy you are able to tilt the torch downwards to get a clear visual on the job. The other benefit of wearing an LED head torch at night when camping, is that everyone can see you clearly and helps prevent you from getting lost.
There are various reasons why LEDs are used in head torches; LEDs can last for 1000s of hours without ever burning out; these lights are incredibly efficient and require little power; in addition they are built very light as well as durable. This makes them perfect for adventurous activities such as climbing and hiking.
However, it's not just outdoor enthusiasts that will find great advantage in sporting an LED headlight, other people will too. There are certain jobs which necessitate the wearing of a head lamp during work. For those in mining, electrical installations or mechanical repair, a head torch will be very useful.
the output of led torch in china
there is a acctrate number of output of led torch in china, it's increasing by 20% every year.the export numnber is also expanding to 10%.
for the good future of led torch, it will surely replace the common torch.
Generally speaking, those who believe that there is no possibility of a large scale replacement with LED street lamps mainly take two factors into account: the quality and cost of LED street lamps. The quality problem exists in all aspects: luminous flux, luminous efficacy, luminous decay, thermal dissipation, color temperature, luminance distribution, stability, homogeneity, power supply and lifespan of other components. On the other hand, the cost of street lamps is several even dozens times higher than conventional street lamps. The LED street lamp, however, has its own strength in energy-saving, theoretically long service life and environmental-friendliness. As green environmental protection becomes a global theme today, it has won extensive support from governments and industries.
Date Announced: 24 Jun 2010
Main objective is the maintenance of industrial lighting in the workplace illumination and the type of the visual work. The increase in light of the working surface increases the visibility of objects by increasing their brightness, increases the rate of differentiation of parts that affects productivity growth. For example, when performing certain operations on the main conveyor assembly of cars with increasing illumination from 30 to 75lk labor productivity increased by 8%. With a further increase to 100 lux - 28%. Further increase of illumination does productivity growth.
In organizing the production of lighting necessary to ensure even distribution of brightness on the work surface and surrounding objects. Light-colored ceilings, walls and equipment promotes uniform distribution of brightness in the field of view of working people.
Industrial lighting must ensure that no worker in the field of view of sharp shadows. The presence of sharp shadows distort the size and shape of objects, their distinction, and thereby increases fatigue and reduces productivity. Especially harmful to the moving shadows, which can lead to injury. Dazzling brightness limit the decrease in brightness of the light source, the correct choice of protective angle of the light, increasing the height of hanging lamps, the correct direction of the light flux on the working surface, as well as changing the angle of inclination of the working surface. Where feasible, shiny surfaces should be replaced dull.
Fluctuations of light in the workplace, resulting, for example, a sharp change in voltage, determine pereadaptatsiyu eyes, leading to significant fatigue.
In organizing the production of lighting should choose the desired spectral content of luminous flux. This requirement is particularly important for ensuring accurate color, and in some cases to enhance the color contrasts. To create the correct color used monochromatic light, reinforcing some color and weakening others.
Lights should be comfortable and easy to use, durable, meet the requirements of aesthetics, electrical, and must not be the cause of an explosion or fire. Provision of these requirements is achieved by using the protective grounding, limited power supply of portable and local luminaries, the protection of elements of lighting networks from mechanical damage.
All this provides a series of LED lights USS-150 Companies FOCUS, which established an official representative of company Axiom of Light on one of the engineering plant.
These lamps are manufactured using LEDs NICHIA NS3W183. Power consumption 150 W, the luminous flux 13600 lm.
The company FOCUS was organized in 2004 in Fryazino Moscow region. City Fryazino - has the status of science city. Experience in the field of electronics since 1993. The company began its activities with the development and manufacture of electronics for the special lighting on the orders of other companies - manufacturers, was developed and released a series of charging electronic devices for lamps. Simultaneously the company led the research and testing in the field of optoelectronics, including in the direction of energy-efficient LED lighting.
For many years, together with our partners, an analysis of market power LEDs manufacturers in Russia and abroad, according to test results the company has identified the main producers of the high-quality LEDs, is a company NICHIA and OSRAM. The company FOCUS has entered into long-term partnerships with leading global corporations NICHIA and OSRAM. In 2004 appeared the first storage and network LED floodlights, produced in Russia, was created the first prototype LED street lamp. Today the company FOCUS provides a full production cycle, from product development to introduce them to life.
The company has a lot of innovative solutions, patents, and implemented projects in the sphere of energy saving and conservation ecology.
Conducted serious scientific - research work, works its own technical laboratory.
The company has a great emphasis on quality of output and quality control of stability. We constantly strive for excellence of its products and develop new technologies. All the products pass, thoroughly tested and has certificates of quality.
The company is positioning itself as a manufacturer of high quality products. Manufactured products meets the stated specifications and have a high resource reliability.
The mission - the fullest link innovative technologies and markets and their promising market opportunities with our clients.
LED products incorporated red, green and blue LEDs controlled by all available protocols. Sold under neon-like tradenames, these products were offered by Dutch Chinese, French Chinese, British Chinese, German Chinese, Spanish Chinese, Taiwanese Chinese and, finally, Chinese companies. Show organizers and exhibitors should consider adding Chinese to future show languages, in addition to English, German and Italian.
Even companies that traditionally focused on special incandescent lamps and stage-lighting lamps showed only LEDs (with poor color rendering, in my opinion).
I spoke to scientists from LED manufacturers Nichia and Osram Sylvania about their most recent efficiency data. Nichia's white LEDs reach 41 to 42 lumen per watt (compare this to 80 lm/W for cold cathode and 105 to 125 lm/W for fluorescents), while their blue LEDs achieve 10 lm/W and their amber LEDs reach 23 lm/W – which equals a tungsten-halogen lamp.
The show focused on networking and "smart" lamp power supplies that can be controlled by Global System for Mobile Communication (GSM) phone systems, wireless LAN, USB or via the Internet. All big, fluorescent-lamp companies exhibited "long-life" tubes, with an average lifetime of approximately 20,000 to 30,000 hours, which had been offered before only by a few, small manufacturers. The long-life tubes would be helpful for hard-to-reach sign applications where neon or cold cathode may not be permitted.
