Crystal light box is also known as acrylic light box: side light guide design, uniform light; transparent crystal frame: when the light box is lit, the surrounding is gorgeous and beautiful; ultra-thin; LED light source: safer and more energy-saving, longer life, easy to change pictures; easy to install: mainly table-mounted, hanging, wall-mounted; suitable for various high-end places: clubs, hotels, bars, restaurants, chain stores, wedding studios, interior decoration, company signs, gift displays, window displays, exhibits, home decoration frames and other places.
Features of crystal light box
1. Ultra-thin and ultra-light: beautiful appearance, maximizes space utilization
2. Bright and uniform light: bright light is completely flat and almost perfectly uniform.
3. High efficiency and energy saving: another commendable advantage is energy saving.
4. Stable and durable: the dedicated LED light source has a long service life. The extended service life also saves maintenance costs.
5. Convenient installation: equipped with hanging or wall-mounted accessories, making the picture replacement simple and fast.
The structure of the crystal light box:
The crystal light box is mainly composed of a light guide plate, an LED light source, reflective paper and mounting accessories. The main material structure is the light guide plate. The design principle of the light guide plate: The design principle of the widely used light guide plate is derived from the notebook LCD screen we see in daily life. It is a high-tech product that converts a line light source into a surface light source. Optical-grade acrylic is used as the base material, and the backlight module technology of LCD screens and laptops is used. Through the high light conductivity of the light guide point, the light of the light guide plate is refracted into a uniform light state of the surface light source through the calculation of the light guide point by the computer.
Working principle of the light guide plate:
The light guide plate uses an optical-grade PMMA sheet, and then uses a high-tech material with high reflectivity and no light absorption to laser engrave the light guide point on the bottom of the optical-grade acrylic sheet. The optical-grade acrylic sheet is used to absorb the light emitted from the light source and stay on the surface of the optical-grade acrylic sheet. When the light hits each light guide point, the reflected light will diffuse to various angles, and then destroy the reflection conditions and shoot out from the front of the light guide plate.
According to the production process, it can be divided into the following three categories:
Silk-screen light guide plate: simple production process, low cost, short service life.
Laser engraved light guide plate: complex production process, high cost, long service life.
Wire engraved light guide plate: the production process is between the above two, and the cost is medium.
From the perspective of long-term cost performance, it is more advantageous to choose laser engraved light guide plate. In the domestic market, many manufacturers choose silk-screen light guide plate because of its simple production process and no deep-level technology, which reduces the service life of acrylic light boxes and causes great pollution to the environment.
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