Ordinary white fluorescent lamps are suitable for everyday lighting and backlighting, while colored LEDs can be used in applications such as construction, entertainment and gardening. Shanxi Lebrite Technology Co., Ltd. announced its new green LED brightness record (150~160lm). Philips Lumileds also added a new deep red LED to its Luxeon series.
Philips' Luxeon Rebel range of color LEDs range from royal blue (440-460nm) to deep red (650-670nm). The recently launched deep red LEDs are designed to be used in applications such as gardening and entertainment. In addition, Philips claims that some government agencies also need to install deep red LEDs for their railway and highway signals.
Crimson LEDs in safety and horticultural fields
Unlike standard red (620-645nm), deep red LEDs have higher visibility. Philips estimates that the LED's drive current is about twice that of the regular Luxeon series. At 700 mA, this LED produces 720 mW of radiant power or radiant flux.
“In the past ten years, Luxeon LED has become the active city atmosphere, adding to the protagonist of the building; LED also adds artistic atmosphere to various performing arts activities; it also ensures the safety of people's daily travel. We are committed to continuous improvement of our color The quality of the LED series and increased light output,†said Steve Barlow, senior vice president of marketing and sales.
The horticultural field is the main purchasing power of deep red LEDs. Our article on LED-ba sed horticultural lighting has also indicated that plants have the highest chlorophyll synthesis rate at 660 nm. Plant growth and greenhouses are replacing universal lighting with a single-wavelength source. Osram introduced LEDs to this field last year.
Another color LuxeonLED with special applicability is a royal blue LED. It also achieves 1120mW radiated power at 700mA. It mainly uses LED and phosphor separation technology to achieve general lighting functions. Philips released its own blue LED earlier this year. Also mentioned in a news report that CREE released its own blue LED message.
Brighter green LED
Green LEDs have been questioned in terms of lumen output due to charge separation effects, and research institutes such as Rensselaer Polytechnic Institute have been working on brighter green LED development. China's Shanxi Lebrite Technology Co., Ltd. announced that it has produced 150-160lm green LEDs with 350mA drive current. If the company can produce such specifications under the premise of cost-effectiveness. Then it will take the lead in special applications such as general lighting, backlighting and gardening.
The backlight of a large-screen TV can improve the color saturation of its image quality by using RGB (red, green and blue) LEDs. However, many TV manufacturers do not adopt the RGB mode because they need two sets of green LEDs and one set of red and blue LEDs to reconcile the consistent brightness. Similarly, the RGB mode of general lighting equipment can also achieve the color function. However, the current green LEDs on the market cannot meet the requirements efficiently.
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