What is a photodynamic watch?
Eco-driven watch is a very environmentally friendly product, which is another invention of watch power source after mechanical watch, quartz watch and electronic watch. Photokinetic watch has a built-in system similar to rechargeable battery, which is different from ordinary rechargeable battery only in that ordinary chemical battery directly converts chemical energy into electric energy, while the battery of Photokinetic watch directly converts light energy into electric energy, which is equivalent to light energy rechargeable battery. Therefore, it can effectively save resources and reduce environmental pollution.
The working principle of a photodynamic watch is to convert light energy into electric energy to drive the watch to run. The solar cell under the dial absorbs the light source and converts the light energy into electric energy. Simply put, during the whole charging and discharging process of the watch, the photodynamic rechargeable battery acts as a container for storing and releasing energy. We know that the magnitude and frequency of charging and discharging current will affect the performance degradation speed of rechargeable batteries. Because of the minimal and reasonable current control, coupled with the continuous progress of technology and technology, the time span of performance degradation of photo-kinetic energy battery is getting longer and longer, which is far from comparable to that of mobile phone rechargeable battery. Under normal circumstances, it is not a problem to use it for more than ten years.
Service life of optical kinetic energy watch
Photodynamic watches don't need to change batteries regularly like quartz watches, so they have a long service life. In terms of the service life of Citizen's optical dynamic watch, the theoretical design service life is about 10 year. This is because the rechargeable battery ages after many times of charging and discharging, the capacitance decreases, and the continuous running time of the watch in the dark environment is also reduced.
But this doesn't mean that the watch 10 years later can't be used, but as long as it is often charged under the light, the watch will continue to go. Experts pointed out that if it exceeds 10 years, it may be necessary to replace the new battery; If it is less than 10 years, there may be insufficient light. You can bask in the soft sunshine in autumn for half an hour and see what happens. Photokinetic watches also have some convenient and practical functions, such as quick start function, time reminder function, charging warning function, overcharge protection function and so on.
Photokinetic energy technology is not unique to citizens.
Photokinetic energy is the core technology of Citizen. Citizen Company has been constantly improving the design and technology of the first photodynamic watch since 1995 came out, overcoming various technical problems such as light absorption, energy storage and power saving on the dial, and finally realizing the perfect integration of cutting-edge watchmaking technology, exquisite and fashionable design and photodynamic movement.
But many people think that the technology of light kinetic energy is only available in Citizen, but it is not. Casio, Tissot, Seiko and domestic Rossini all have this technology, and they have all launched such watches. Because Citizen took the lead in research and development and applied for a patent, and "eco-driven light kinetic energy" is a registered trademark of Citizen, so the name of light kinetic energy is only allowed to be used by Citizen, and other brands can only give other names.
Special Functions and Disadvantages of Photodynamic Watches
The second hand has a warning function.
The early warning function of optical kinetic energy watch needs a second hand to complete. If the second hand is abnormal during use, it needs to be adjusted: if the second hand jumps for 2 seconds, it means that the power is insufficient and it needs to absorb light energy to charge; If the watch stopped for lack of power some time ago, it will run again after being fully charged. If the second hand still beats for 2 seconds, the time needs to be adjusted.
Without light, the battery will automatically consume, and the recovery will be very complicated.
The battery of a watch usually stores electric energy for a rainy day. If the optical dynamic watch is placed in the dark for a long time, it cannot be charged, and the spare battery is exhausted, especially if it is not used for a long time, even if the date of the perpetual calendar watch is adjusted, the date of the end of the month will sometimes be inaccurate.
This is not a fault, but the initial setting of the year and month at the time of stop is inaccurate. This requires reading the instructions carefully, readjusting the reference position, pulling out the first gear, adjusting the time (or date, which needs to be explored), and pulling out the second gear with an adjustable date. Forward and backward are used to increase and decrease, and then set the time and calendar.
Method of distinguishing light meter from ordinary light meter
Method 1: The movement of photoelectric watch also belongs to the timely movement, which is the same as that of ordinary quartz electronic watch. The simplest and most direct way is to look at the English notes displayed on the dial. The dial of photoelectric watch is marked with the word Eco-Drive, and the dial of ordinary QUARTZ electronic watch is marked with the word Quartz.
Method 2: Some counterfeit watches or fake watches with high imitation are deliberately printed with the words "light kinetic energy" to pretend. You can only open the back cover to check the battery and movement. Photoelectric watches use long-life rechargeable batteries (the service life can be as long as 15-20 years), and there is also an amorphous solar cell, which can convert all kinds of light energy into electric energy. Quartz watches only use common silver oxide button cell, and their appearance is very different.
▼? Radio watch Radio watch is the fifth generation timer after the development of human timing relay hourglass, sundial, mechanical clock and response clock. Wireless watches combine traditional clock technology with high-tech time frequency and electronic technology. It receives the standard time signal sent by the National Time Service Center through long-wave radio, and after being decoded by the built-in microprocessor, it automatically calibrates the timer, so that the time displayed by the radio wave meter automatically keeps accurate synchronization with the standard time maintained by the country. The most famous radio watches should be Casio and Citizen.