Author: oscar
Since Y2O3:Eu was used in the manufacture of phosphors in 64 years, rare earth luminescent materials have developed rapidly. Most rare earth elements are more or less used in the synthesis of fluorescent materials. Rare earth luminescent materials have become display, illumination and optoelectronics. Support materials in the field of devices and the like, and new rare earth phosphors are constantly appearing.
CRT phosphor. CRT (cathode ray) phosphor is the earliest application of rare earth in luminescent materials. The popularity of color TV and the vigorous development of PC make this classic new material grow at a high speed. Currently, there is still an annual growth rate of 7%, but it also faces the flat plate. The challenge shown. The process of color TV and color display phosphors was basically formed in the 1970s. RCA is the originator of this technology, but Japan's Nichia, Kassei and other companies continue to inject new technical content into this field, making the brightness and contrast of the screen. Indicators such as clarity, readability of sunlight, and longevity have been greatly improved. Japanese companies have almost monopolized the technology of CRT phosphors, and they are the industry's technical standards and methods of use.
Phosphors for lamps. In 1974, Philips first synthesized rare earth green powder (Ce, Tb) MgAl11O19, blue powder (Ba, Mg, Eu) 3Al16O27 and red powder Y2O3: Eu, and mixed them in a certain ratio to make a three-primary phosphor. Due to its excellent luminescent properties and energy-saving characteristics, rare earth trichromatic phosphors have become more and more widely used. Countries such as the United States and South Korea have already enacted legislation to promote the use of energy-saving lamps. In recent years, the growth of this market has remained at 15 ~20% level. Companies such as Nichia, GE, and Tokyo Chemicals, which have high levels of technology in phosphors for lamps.
Phosphor for plasma plate display (PDP). Among the many flat panel display technologies, PDP is the first choice for medium and large screens (30~50 inches), and it is the only flat panel display technology that has been commercialized. With the increase in product qualification rate, the price has been 30,000 to 50,000 round (40 to 42 inches), and the annual sales growth has reached 50%. At present, there are not many manufacturers of PDPs in the world, mainly Japan Fujitsu, Mitsubishi, Panasonic, Pioneer, NEC, Hitachi, USA Photonic Image, Plasmaco, Rogers, South Korea Samsung, France Thomson, Holland Philips. The PDP manufacturing technology is basically a monopoly in Japan, and the phosphor blending technology is monopolized by DuPont.
Long afterglow phosphor. In recent years, long-lasting phosphors have developed rapidly. In addition to the emergence of new phosphors, many traditional phosphors have been given new application characteristics due to the development of phosphor theory and manufacturing technology. At the same time, the continuous expansion of the application market has also made research in this field very active.
Light conversion material. The light-converting material absorbs ultraviolet light which is unfavorable to plant growth in sunlight, and converts it into visible light which is favorable for plant production, mainly blue light of 400-480 nm and red light of 600-680 nm, thereby promoting photosynthesis of crops, thereby achieving Increase the purpose of precocity. Common rare earth organic complex light conversion agents and rare earth inorganic light-emitting materials, such as TTA-TOPO:Eu3+, 364nm ultraviolet excitation, red light, rare earth (Eu, Tb) chelate light conversion agent; CaS:Eu , Cl, CaS: Cu, Eu.
Electroluminescent (EL) phosphor. Electroluminescence is the direct conversion of electrical energy into light energy. It is characterized by low operating voltage, high energy conversion efficiency, small size, light weight, wide working range and fast response. It can be made into a fully solidified device. Rare earth doped ZnS, CaS and SrS thin film electroluminescent devices are emerging in the flat display.
Field emission display (FED) phosphors. FED is a flat panel display that is likely to compete with PDP and LCD. Its picture quality and resolution are better than CRT, the response speed is fast (≤20μs), and the power consumption is only 1/3 of the LCD. The thickness and weight of the flat panel display. It is also only 1/2 of the LCD, and its application prospects are attracting attention. (small soup)
· Custom Designed to fit Instax camera.
It closes nicely when not in use with the closure. Adjustable shoulder strap is perfect for your comfort.
· Ever Ready -- No need to take out the camera when taking photos, the top snaps off, and all of the buttons on the camera are accessible.
· Film Count Show -- A small hole on the back lets you know how many films you have left without needing to remove the camera from the case.
· Compact, lightweight and extremely durable. High-quality PU leather, smooth surface and soft microfiber lining. Protect your Instax camera from dust, scratches and damages.
· Fashionable Design. Vivid Pattern for Any Location or Any Occasion. Being Convenient and Helpful to Be Used for Outdoor or Indoor. Multiple Patterns Available.
Printing Series Camera Bag
Printing Series Camera Bag,Sweet Style Printing Camera Bag,Polaroid Cake Pattern Camera Bag,Floret Camera Bag
GuangZhou CAIUL Digital Products CO,.LTD. , http://www.caiul-instax.com