In the near-infrared, the wide spectrum of the infrared spectrum, the total reflection mirror is coated with a high reflectivity gold film. Gold Mirror,Gold Reflector,Protected Gold Reflector,Protected Gold Mirror Bohr Optics Co.,Ltd , https://www.bohr-optics.com
What's new in the LED field recently?
In addition to LED backlights and LED drivers, the visibility of automotive lighting, commercial lighting and special lighting has increased.
In view of the lighting required for the products, the halogen lamps used in the department store windows have been used by manufacturers to use LEDs. Not only are there no UV problems, but the temperature of the heat is also much less.
The LED is more noticeable in commercial lighting, there are two kinds of lighting technology.
Generally, we know that the most expensive white LED products on the market are made up of blue LED products and fluorescent powder. The white LEDs are mixed with blue wavelength and fluorescent light. The wavelength of powder is called, so it is called dual-wavelength white LED technology.
The more advanced and costly products use three-wavelength white LED technology, that is, RGB three-color LED modules composed of red LEDs, green LEDs and blue LEDs. Through the wavelengths of these three LEDs, Let the three colors of light mix into white light, which will be close to the white light seen by our eyes under the sunlight, and the white light texture will be more realistic than the dual-wavelength white LED.
However, is there any way to make the first dual-wavelength white LED that was proposed earlier evolve? Taiwan's factory has released a new three-wavelength white LED packaging technology and obtained US patent rights. This is different from the two white LEDs mentioned above, using blue LEDs plus red and green phosphors. With the package, it is possible to create a single white LED with a three-wavelength product.
This is helpful for the industry, because it can achieve the white light effect that can be produced by RGB LEDs in the case of cost saving, and improve the CRI color rendering. This technology is expected to be commonly used in freezer light strips, commercial lighting, special lighting, backlight modules and more. 
In order to enhance the adhesion of the gold film, a very thin chromium base film is plated.
The gold film of the silicon substrate has strong adhesion, high thermal conductivity (the thermal conductivity is about 111 times that of glass), and the heat resistance is much better than that of the glass substrate.
Because it is a metal film, the reflectance or reflectance wavelength characteristics will not change greatly with the incident angle.
·The gold film has a high reflectivity in the infrared spectrum. The light that is not reflected is completely absorbed by the film and will not pass through.
Talking about the Three-wavelength White LED Packaging Technology of Taiwan Factory
Topic: Technology