37MM Universal CPL For Clearer Photo Phone Camera Circular

Mobile phone chargers can be roughly divided into travel chargers, cradle chargers and maintenance chargers. Generally, users mainly contact the first two. And the most sold on the market is the travel charger.
There are also various forms of travel chargers. The common ones are the cheap duck egg-shaped miniature travel charger, the ordinary desktop card board charger, and the high-end desktop charger with crystal display. Mobile phone charger, also known as: mobile phone adapter, is actually composed of a stable power supply (mainly regulated power supply, providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting. The output parameters marked on the charger (referring to the line charger): such as output 5.0V/1A, output 5.0V/1500mA-11200... refers to the relevant parameters of the internal regulated power supply. Understand this truth, you will know that a (good quality) mobile phone charger is easy to change into a good quality regulated power supply.
The chargers of lithium-ion (li-ion) batteries commonly used in mobile phones use a constant-current and voltage-limited charging system, and the charging current is generally around C2—that is, the charging rate is two hours. For example, a 500mAh is charged at 250mA in about two hours 4. Constant voltage charging after 2V.
The lion is not suitable for the -DV/DT detection fast charging method used by the NIMH advanced fast charger, because the lion has a strict limit on the charging current. Lithium ion (Li+) is very active, and high current charging is prone to danger. The general user contacts are mainly the first two. The most popular travel chargers on the market are travel chargers. There are also various forms of travel chargers. The common ones include cheap duck-egg miniature travel chargers, ordinary desktop card board chargers, and high-end desktop chargers with LCD display. device. In view of the fact that most mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1-3 hours. Many chargers on the market advertise that they are controlled by microcomputers, including some very cheap duck-egg-type miniature travel chargers. In fact, strictly analyzed from the charging circuit, only a small number of chargers can be truly controlled by microcomputers (MCU control). .
Some manufacturers claim to be "microcomputer control" when they use integrated blocks on the charging circuit. In fact, many low-cost design integrated blocks are cheap op amp integrated blocks, while some dedicated charging control integrated blocks have higher unit prices. , generally used in relatively high-end or brand-name chargers. So we can't trust the so-called microcomputer control, especially the cheap products. Many products are similar in appearance but have very different internal circuits, and their performance is also very different.Features:

Reduce stray light

The polarizer can not only improve the contrast of the scene, increase the color saturation, but also eliminate unnecessary reflection on non-metallic surfaces, such as water and glass surface.

Clear photography

Eliminate dust with water vapour in the air, make the picture clearer, and avoid the influence of dark angle on imaging to the maximum extent.

Phone clip

Designed especially for mobile phones. The clip of 3.7cm/1.45inch diameter can perfectly clip on your phone camera without blocking the camera view and damaging to your phone, allows you to take beautiful photos easily.

Lens protector

With a plastic lens protector which can prevent dust and water from polluting and rusting the polarizer, keep it clear and all the time.

Small and portable

With small size, easy to take around in your pockets or handbag. You can take it out to use whenever and wherever, never miss any beautiful scenery.



Specifications:

Type:circular polarizer

Material:ABS

Item color:black

Quantity:1pc

Lens diameter:1.3cm/0.51inch

Clip size:6*4*3.7cm/2.36*1.57*1.45inch(L*W*H)

Net weight:25g/0.88oz



Package:

1*circular polarizer

1*phone clip

1*protector