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LED phosphors: a brief introduction of several phosphors

Ⅰ. Yellow phosphor powder Yellow Phosphors 1. Introduction: YAG phosphor is the fluorescent material of white LED. A blue light chip is coated with a layer of fluorescent substance, and a blue light LED is used to illuminate the fluorescent substance to generate complementary yellow light with blue light. Then the complementary yellow light and blue light are mixed with the principle of lens, and the white light required by the naked eye can be obtained. 2. Product Performance 2.1 The Appearance...

Which watchmaking brands have glow-in-the-dark watch patents

Originally used in watches, noctilucent materials were invented by Panerai. At this time panerai will also be the invention of the patent named their own watch series. There are a lot of friends private message we said before the network spread the kind of watch luminous material, is it true that the radioactive statement, let us take this question together to discuss about the watch luminous material behind the story. Noctilucent material is the most comfortable application in the diving...

There are three common forms of electroluminescence

Gas discharge light source has the following common characteristics: (1) high luminous efficiency. D4101da-r is 2 to 10 times more efficient than incandescent lamps of the same wattage, so it has the characteristics of energy saving. (2) compact structure. The electrodes can be made strong, compact, vibration-resistant, and shock-resistant because they do not emit light from the filament itself. (3) long life. General than incandescent lamp life 2 ~ 10 times longer. (4) strong light and color adaptability. Can vary over a wide...

Market demand analysis of rare earth luminescent materials in China

(a) the change of market demand for energy-saving lamps 1. The trend of energy-saving lamps replacing incandescent lamps and halogen powder lamps is significant In view of the outstanding functions of energy-saving lamps in terms of light efficiency and longevity, a number of countries and regions around the world have successively launched programs to stop the use of incandescent lamps and promote the use of energy-saving lamps in recent years under the background of global response to climate change and power...

Luminous “toxic”? Talk about the knowledge of luminous watches

In the dark night, a shiny watch can save a lot of trouble. Many watches will be coated with luminous paint on the hands and scales, so that people can watch at night. After more than a hundred years of evolution, the luminous material of the watch has undergone earth-shaking changes. Do you know if these materials are harmful to the human body? Today, let's take a look at the paint of luminous watches. Rolex uses the innovative Chromalight luminous display on the new...

What is the form and material classification of the signs

Signs are very common in our daily life, but signs can be divided into wood signs, plastic signs and metal signs because of the different materials of production, dazzling, so how are signs classified? And what forms does it have? Material classification: (1) smooth logo: the picture or board surface is oily and very smooth. (2) acrylic marking: acrylic material as the main material on the board. (3) noctilucent material signage: noctilucent material signage (that is, we usually say the neon light) (iv) electric...

Types and development trends of commonly used water-based coatings

Water-based paint is a kind of paint with water as diluent. 70% -90% of the composition is water that is not harmful to human body and the environment. No organic solvent (such as benzene, ketone, ester, ether, etc.) is needed during the production process. Substances.) And formaldehyde, lead, chromium and other harmful substances. Water-based paint uses water as a dispersion medium. During the construction, water volatilizes and returns to nature in a vaporized state, without causing harm to human...

The main applications of rare earth luminescent materials

The use of rare-earth light-emitting materials will bring the effects of environmental protection and energy saving, good color rendering function and long life number to the light source, which is conducive to promoting the upgrading of products in the current significant area. Therefore, once the rare-earth light-emitting materials are created, they are quickly used in the production of color television picture tubes (CRTs) and fluorescent lamps. The industrial use of rare-earth light-emitting materials in China also began in the...