Tel：400-900-9069

Q:

Technology and Support

A:

Years of experience have enabled us to continue to grow and develop. We have set up service outlets in many countries and regions at home and abroad to ensure that our services cover a wide range, respond quickly, and deal with problems in a timely, comprehensive and accurate manner. Rishang Optoelectronics Co., Ltd. has been continuously providing high-quality products and fast and efficient services to many customers. Regardless of the quality of the products in all aspects, the service quality before, during and after the sale, as well as the overall brand value, customer loyalty continues to rise. Of course, it also makes the daily sales performance generate continuous positive growth energy.

1. Senior engineers can provide free pre-sale, in-sale and after-sale online consultation, selection and design services;

2. Technical engineers can provide LED lighting overall solution production and tender design for free;

3. Large-scale terminal projects can provide professional installation service guidance, free installation labor costs, and installation materials will be charged separately;

4. After-sales service engineers can provide professional technical services;

Q:

LED related Chinese and English comparison

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1. Substrate technology: LED substrate material; substrate structure; substrate polishing; substrate cutting; substrate doping;

Substrate underlayment substratum material structure (structure formation) polishing (polishing) cutting (cut) doping (doping)

2. Epitaxy technology: epitaxy process, epitaxy annealing; LED buffer layer, LED cover layer, LED quantum well, LED lattice, LED contact layer

Epitaxial (manufacturing process) annealing (buffer layer) covering layer (covering layers; overlay) quantum well (quantum well)

lattice (lattice) superlattice (superlattice) contact layer (contact layer)

3. Chip technology: chip structure; chip manufacturing; surface roughness; shape; photonic crystal; substrate peeling; substrate bonding; light guiding structure; dicing; etching; passivation; electrode;

Chip (chip) structure (structure formation) manufacturing (manufacturing, manufacturing) surface (surface) rough (rough) shape (form; appearance) photon (photon, photonic) crystal (crystal) stripping (stripping) bonding (bond) light guide (Light conducting; Guiding light) dicing (dicing) etching (etching) passivation (Passivation) electrode (electrode)

4. Packaging technology: package, base, lens, reflector, lead, lead frame, heat sink, white light, phosphor, measurement, light guide plate, adhesive, material, improvement, shape, structure;

Encapsulation (encapsulation; packaging) lens (lens) reflector (reflector) lead frame (Leadframe) lead (Lead wire) heat sink (Heat sink) white light (white light) phosphor (phosphor) measurement (measure) light guide plate (light guide) plate; Light conducting plate) adhesive (adhesive) material (material) modified (Modified) structure (structure formation) shape (shape, form)

5. Application technology: automotive lighting, indoor lighting, mobile phone backlight, LCD backlight

Application (application) car (car, automobile, vehicle) indoor (Indoors, room) mobile phone (Mobile, cellphone) lighting (illumination, lighting) liquid crystal display (LCD, liquid crystal display) Backlight source (Backlight source)

Fluorescent material: fluorescent chip; fluorescent package; fluorescent substrate; fluorescent material chip; fluorescent reflector; fluorescent adhesive; fluorescent light guide plate; fluorescent spacer film; fluorescent active layer;

Fluorescent material, chip, phosphor, package, substrate, material, reflector, adhesive, light guide plate; Light conducting plat

e) The active layer of the spacer film (diaphragm)

Q:

The performance index of electric light source

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According to its name, the electric light source mainly has two performance indicators of light and electricity. Of course, the performance indicators of these two aspects are closely related. However, as a light source, it is mainly the performance index of light, and the indicators of electricity often focus on its influence on light performance.

(1) Luminous flux

The luminous flux of the light source represents the luminous ability of the light source and is an important indicator of the light source. The rated luminous flux of the light source refers to the luminous flux output of the light source under the conditions of rated voltage and rated power, and can emit light without restraint.

The luminous flux of the light source will change with the ignition time of the light source, that is, the longer the ignition time, the smaller the luminous flux becomes due to attenuation. The luminous flux of most light sources attenuates more at the initial stage of ignition, and the attenuation gradually decreases with the increase of ignition time. There are two cases for the rated luminous flux of the light source: one refers to the initial luminous flux of the electric light source, that is, the luminous flux output when the new light source starts to ignite. The other case refers to the luminous flux output of the light source after 100 hours of use, which is generally used for light sources with large luminous flux attenuation, such as fluorescent lamps.

(2) Luminous efficiency

The ratio of the luminous flux output of the light source to the electric power it uses is called the luminous efficiency of the light source, or luminous efficiency for short, and the unit is lm/w. Light sources with high luminous efficiency should be preferred in lighting design.

(3) Color rendering

Color rendering is an important performance indicator of light sources. Under normal circumstances, the color rendering index of the light source is generally used to measure its color rendering, which can be roughly divided into 4 groups. When there are special requirements for certain colors, a special color rendering index is used.

Application example of color rendering index of light source

(4) Color table

The color table of the light source refers to its apparent color, which is two different concepts from the color rendering of the light source. For example, the light of fluorescent high-pressure mercury lamp is white and bright from a distance, and the color table is good, but the face of the person under the light is cyan, indicating that its color rendering is not very good. Color table is also an important performance index of electric light source.

Although the color table of the light source can be expressed by adjectives such as red, orange, yellow, green, cyan, blue, purple, etc., in order to quantitatively express it, it is often measured by the correlated color temperature. The color table of light sources can be divided into three categories according to their correlated color temperature.

Q:

Classification of electric light sources

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According to the principle of light generation, electric light sources are mainly divided into two categories.

A. One type of electric light source is based on thermal radiation as the principle of light radiation, including incandescent lamps and tungsten halogen lamps. They all use tungsten filaments as radiators. After being energized, they can reach incandescent temperature and generate thermal radiation. This kind of light source is collectively referred to as thermal radiation light source, and it is still an important lighting source at present, with a large number of production.

B. Another type is various gas discharge light sources, which mainly produce light radiation in the form of atomic radiation. According to the pressure of the gas in these light sources, they can be divided into low-pressure gas discharge light sources and high-pressure discharge light sources.