Material: PMMA
Application scope: mainly used in flat panel lighting field, such as flat panel lamp, flat panel downlight, film viewing lamp and other products, but also suitable for other flat panel lighting, small size ultra-thin light box applications. The LED light guide plate transforms the line light source or the point light source into the surface light by the light scattering effect; It can be cut into the required size at will, and can also be spliced for use. The process is simple and the production is convenient; The imported brand-new pure material for lighting is adopted, the light conductivity is 92.5%, and the uniformity is more than 85%; The manufacturing tolerance thickness is plus or minus 10%; The peripheral tolerance is plus or minus 0.5mm; Five years of quality guarantee; The environmental protection standard of peripheral tolerance conforms to EU ROHS.
Features of light guide plate of gangzheng industry
1. Flexible design of light guide points: light guide points can be flexibly designed according to different light sources or different lighting conditions of each customer, so as to achieve different purposes and get the best effect.
2. Good weather resistance: the imported special optical UV ink and curing technology of light guide plate of large-scale UV machine are adopted, which can make the light guide point firm, not easy to oxidize, not easy to yellowing and good weather resistance. Quality can ensure more than 5 years of normal light, surface does not yellow, to ensure normal use.
3. Stable material: acrylic (such as Taiwan Qimei, Japan Asahi chemical, America Lucite, etc.) which is an imported optical grade pure material with light transmittance higher than 92.5% is used as the base material and professional high reflectivity reflector; It can ensure that each light guide plate has excellent optical effect, uniformity and brightness of light guide.
4. Comply with environmental protection: adopt pure acrylic as the base material, and use special imported environmental protection UV ink and Japanese imported pet reflector and other environmental protection materials.
Generally speaking, there are different classification methods for light guide plate due to its shape, manufacturing method and function, and there is no unified classification method at present. After finishing, A. according to its shape, it can be divided into flat plate and wedge plate (inclined plate)
Flat plate: the light guide plate is rectangular from the light entrance.
Wedge board: from the point of view of light entrance, one side is thick, and the other side is thin, forming a wedge (triangle) shape.
B. According to the dot production mode: printing and non printing
Printing: after the shape processing of the light guide plate, the dot is printed on the reflecting surface by printing, which is divided into IR and UV.
Nonprinting: the dot is directly formed on the reflecting surface when the light guide plate is formed. It can also be divided into chemical etching, V-CUT, stamp and internal diffusion.
C. According to the way of light: side light (lamp and LED) and straight down.
Side light type: place the light emitting body (lamp or LED) on the side of the light guide plate.
Straight down type: place the light emitting body (lamp or LED) under the light guide plate.
D. According to the forming method: injection forming and cutting forming.
Injection molding: injection molding machine is used to inject optical grade PMMA particles into the mold under high temperature and high pressure
Cutting forming: the optical grade PMMA raw board is cut to complete the finished product.