How do human find out ultraviolet light?
Before that we left undiscussed the subject of how this uv light might be discovered. Now all of us, Let’s start! so many kinds of uv led in led market. uv led is now very widely used. But how do we actually go about discovering the light that?
Solar radiation to the earth, except for ordinary visible light, This light should also be included in ultraviolet light(ultraviolet ray) ,earth’s natural UV light origin in the sun. In this way, The sun light through the atmosphere, a large amount of ultraviolet is absorbed by the atmosphere ozone.only a small part of the uv light source reach the earth. The British physicist Herschel found out the infrared light with prismatic spectrum in 1800.

Since then, more scholars ‘ attention that infrared light and ultraviolet light. The German physicist Ritter(Johann Wilhelm Ritter) had taken a serious interest in the invisible light . .he is convinced that the symmetry of North and south poles. And deeply convinced that not visible radiation did exist. . which is ultraviolet light.

Discussion on the problem of lampblack depurating in catering trade—extensive use of uv led strip
Today we are talk about The characteristics of application& development of UV led strip. It is vexing to have to admit thing that Oil-Smoke Pollution of Diet-Service Trade of City. This is our Analysis on the Current Oil-smoke Pollution of the Food and Beverage Industry . we are each anxious to looking for solutions to this.
In promoting of the technology and application of the oil fume purification system, It is possible to take steps before any Air pollution has occurred to minimize risk. the UV LED can solve this problem efficiently. Photolysis and oxidation treatment after with uv led , then excrete carbon dioxide and water.
Photolysis and oxidation fume purification system with special UV LED strip , it will sever the oil molecular chain of lampblack.they could be turned into smaller oil molecules, it has to be further is the burning cold, then generates carbon dioxide and water molecules, finally removing carbon dioxide and water molecules with ventilating fan. only little amount of white powder residence here. The white powder smooth and non-sticky . Moreover odorless and tasteless and flame retardant, biodegradation, the system may have eased the air-pollution problem.

Is it useful is there a uv led strip verify the natural emerald？

At present, the jewelry market has several testing method for folk jewelry, Further studies will be needed to see if these method have any value.

Use ultraviolet led strip to verify natural jade is best way.
Now, let’s find out that jade classification for jewelry. The division of the stars into four classes of jade . They were A、B、C & B+C . A is natural jade . B is through artificial filled jadeite.
C is through high pressure and high temperature dyeing jade. B + C goods is both filling and dyeing jade. because natural stone did not produce the reaction of fluorescent reaction, natural jade does not shine under the irradiation of ultraviolet led.

Experts explain: because B cargo jade and B + C cargo jade implants are epoxy resin. They will produce the reaction of fluorescent reaction under the irradiation of ultraviolet led. This is an important theory in identify work. but C cargo jade not filling, just dye, also can’t produce the reaction of fluorescent reaction under the irradiation of ultraviolet led.   so This application is for B cargo jade and B + C cargo jade use only.

         How to choose the voltage and current of the UV led strip
It is important to first determine the total power PO when design of uv led strip, then to calculating the voltage U, current I. And then there is the most direct method: based on the actual printing process of the customer confirmation uv led strip power. Study on Free Electron ‘ s Move-speed by voltage differences .
We have analyzed various factors— current and voltage:

1, UV led operating voltage,
(1)determine the current
(2)then the calculation of the voltage from the formula P=UI.
A basic principle is big current and low voltage, because of the voltage is low compared to safety.

2, UV LED current density. Current density may have been adjusted to between 1.7 ~ 4A/cm,The reason is that the current density can not be too small, otherwise the UV output efficiency is low; the Second is the current should not be too large, otherwise the high heat loss and the circuit is not safe.

UV led strip wavelength table

Ultraviolet light (UV- A):Long wave band(Main wave 365NM)
Ultraviolet light (UV- B):MID wave band(Main wave 297NM)
Ultraviolet light (UV C):Short wave band(Main wave 253NM)
Ultraviolet light (UV-V):100~108NM(Main wave 184.9NM)

Contrast the UV led with the Mercury Lamps

Ultraviolet germicidal lamp in which the nerve function influences

Germicidal is only beginning to understand for uv led strip. It is much more powerful than have improved the spiritual enlightenment. In other words,The uv led has a large influence on the nerve functional index . now let ‘ s talk about ultraviolet lamp and Human Nerve.
Ultraviolet radiation is one important reason for the shift. It’s can changed brain waves. clinical trial results:
The Vitiligo and psoriasis patients, uv led may be good to refreshment, regulation of nerves. the effect of feeling fluctuation can be well controlled, more favorable to disease control and rehabilitation.
the patient can be used in moderation uv led. in a way that is more favorable to maintaining returning to normal.. For psoriasis, eczema, skin pruritus patients, application with appropriate intensity of ultraviolet radiation, can reduce that central nervous system (CNS) and the peripheral nerve of excitatory or eliminate the itching,
UV lamp in the life of a very important role, make sure the uv led is used effectively.

UV curable inkjet apply to spray painting
The new technology of ultraviolet curing spray painting This new technology could greatly shorten the paint time from 10 days to 3 minutes can make the production of one square meter of high-grade paint

Spray painting printing ink of UV curable including active A mixture of paint-thinner , the synthesis of acrylate, nano paste, light triggered agent, dispersing agent, defoaming agent, can hat can quickly to cured under UV irradiation and meet the requirements of high-speed printing, the uv led technology are used around print in glass, ceramics, aluminum plastic board or similar hard materials and pet, PC, PVC or similar soft materials. the production shows
that good adhesion and the uv light curing speed was faster.

How the force acts on ink with uv led strip

UV curing ink (Curing Printing Ink Ultra-violet) referred to as UV ink, when light falls on certain things(applied a layer of oil to the surface)it will be curing promptly.it’s a part of the process for uv led strip.

The main advantages of UV ink are: (1) without solvent; (2) the drying speed is fast, the energy consumption is little; (3) the luster is good, the color is bright; (4) the water resistance, the solvent resistance, the wear-resisting performance is good.
the photoinitiator (photocuring agent) of UV curable ink is a kind Chemical compound that are more inspired by light, After the absorption of light, it is excited to be free radicals, and the energy is transferred to the photosensitive molecule or the light crosslinking agent, so that the UV ink has a light curing reaction. At present, UV ink has become a more mature ink technology, its pollutant emissions almost zero. Except without solvent, UV ink if there is not easy to paste version, mesh point clear, ink color bright, excellent resistance to chemical properties, dosage, etc. advantages. The ink with uv led strip is become a normal technique

LED has Penetrating
None of Penetration force of xenon lamp or a halogen lamp is either good or bad. Xenon and halogen ,in fact, only two different lighting system(principle of lighting). This issue is just relevant to (k value).Because CT(color temperature) is constant value only K cares .Generally speaking, color temperature lower penetration power better. On the contrary, the higher the temperature penetration worse.

The color temperature of misunderstanding understanding, not temperature color (K value) is larger, the higher the brightness

This is the physical laws of spectroscopy: color temperature and brightness is inversely proportional . the higher the temperature, the lower the brightness
Please look data as follows;

4200K = 3500 Lumen = 372500 CD

4500K = 3350 Lumen = 362500 CD

5000K = 3200 Lumen = 352500 CD

6000K = 3000 Lumen = 332500 CD

7500k = 2900 Lumen = 332500 CD

8000K = 2800 Lumen = 312500 CD

10000K = 2750 Lumen = 300000 CD

12000k = 2600 Lumen = 282500 CD

14000K = 2500 Lumen = 262500 CD

Ranging from 3000K to 20000K LED color temperature on the market
European Union have strict rules for LED color temperature. the highest color temperature is not more than 5000K.The relationship between the color temperature and light color are probably as follows:

3000K- golden yellow;

4000K- yellow with white;

5000K – white;

6000K – white slightly with blue;

8000K- blue;

10000K- violet.