Watch luminous material radiation? ! Don't scare me

The appearance of watches allows people to accurately calculate and arrange time at all times, but at night or in other dark places, they cannot read the time at any time and cannot easily "control" the time. Time is sometimes life, success or failure results in a moment, the opportunity is fleeting. Luminous watch emerged as a bright pearl in the night, to illuminate the way forward.

Usually pay attention to watch what movement, waterproof performance, brand, origin, is not ignored glow-in-the-dark? Today send internship sister and everyone to understand the fact that you are closely related to luminous watch materials

What are the traditional fluorescent coating materials?

Traditional fluorescent coating materials can be divided into two types: self-luminescence and light-storage. Spontaneous light fluorescent agent is to rely on oneself to carry more trace radioactive material release ray excitation fluorescent agent luminescence.

And store light fluorescent agent basically does not contain radioactive material, want to absorb and reserve enough intensity of external illumination only, store energy together. When the surroundings are dark, the fluorescent agent starts to glow. However, the light storage type does not carry ray excitation materials, so the duration of the afterglow is temporarily inferior to that of the spontaneous light type.

What are the spontaneous fluorescent materials?

Radium is the use of radioactive radium salt as an activator, emit α and γ two kinds of rays, through some synthesis can produce a certain brightness of spontaneous light, relatively suitable for close observation of luminous materials.

But because of its radioactive, harmful to the human body, and because the sealing effect of the tabulation technology at that time is not good, water and air into the watch will have chemical reaction with radium, radium luminous effect becomes poor, in use is limited, has begun to gradually phased out. But there is no denying that radium was the first light to start reading time at night, a milestone.

In the 1960s, the subsequent emergence of tritium tubes soon replaced radium as the main material used for luminous displays. Tritium tubes do not require external energy or external light source reflection, can remain stable, light intensity is 100 times that of traditional luminous paint. And the tritium radiation is small, as long as the tritium tube is not broken, it is harmless to human body.

Swiss-t < 25 "in the watch is the safe range of tritium content, or the word" T Swiss T ", where T stands for radioactive element tritium. However, after 12.5 years, tritium's luminous effect becomes worse, and it begins to age and turn yellow, gradually losing its luminous effect.

But as a memorial, Panai's two collections are named Radiomir and Luminor, in honor of radium and tritium's outstanding contributions to the brand

When it comes to tritium, one thing we must know is the tiny tritium gas pipe, which is an advanced version of the tritium technology. The advantage of tritium tracheal luminous is that the eyes of the wearer can easily see the time on the dial in the dark without adjustment. In 1991, the tritium tracer was introduced to the U.S. military and was widely used in the first Gulf War.

For the utilization and development of tritium gas, Devos is worth mentioning in the tritium noctilucent. High-tech T25 tritium gas night light, no light, continuous light for 10 years; High precision orange 磞 silicate needle tube, high safety performance, cool and chic.

What are the special features of modern non-emission fluorescent materials (light storage type)?

Although tritium radiation is small, but now people need to safety psychological and environmental requirements. As a result, a new type of long afterglow storage rare earth aluminate fluorescent material without radioactive substances has emerged, which does not contain any harmful elements at all, and has more stable chemical properties, high brightness and long afterglow.

Among them, Nemotoand Co Ltd. 's registered patented Luminova and Superluminova materials are widely used in the watchmaking industry. This new fluorescent material can last several or even more than ten hours after being irradiated by strong light outside.

Adopt Luminova luminous material

Luminova, Latin for "bright night," is based on inorganic aluminate, which is resistant to light, does not discolor over long periods of time, and is relatively stable. After 10 to 20 minutes of natural light, it glows in the dark for 8 to 10 hours.

Super-luminova is a non-radioactive luminescent material that produces greater luminosity than tritium tubes after 10 minutes of exposure to the light source. A variety of colors can also be added to create a colorful luminous effect.

This is especially true for diving watches. Super-luminova helps divers see the time more easily and accurately by matching the visibility of diving watches with a variety of color combinations and fluorescent coatings. Such as the Universal Ocean chronometer deep sea 3 watch, through the use of rich color, diving indicates the current depth of the diving process.

In watch luminous aspect, Rolex also continues to show its unique charm and innovation ability, Rolex luminous dial display, selection is an innovative fluorescent material Chromalight. Chroma is "Chroma, saturation".

The Chromalight glow lasts almost twice as long as standard fluorescent materials. The intensity of its glow is more stable during a full dive and can be maintained for more than eight hours.

In 2008, Rolex introduced the Chromalight fluorescent material - Blue Light - for the first time on the Oyster Constant Motion DEEPSEA diver watch, which is waterproof to a depth of 3,900 meters.

Seen so many luminous materials, radioactive elements watch over time precipitation more taste; Modern fluorescent materials have strong stability and do not change color.

Now it's time for the multiple-choice question. Do you prefer the radioactive elements that decay over time and slowly turn yellow, or do you prefer the new luminous materials that retain their original luminous effects for a long time?