What are the names of the two circles below RMB?

These small circles are called round constellation anti-counterfeiting technology, which was invented by a Japanese company. It is a mode to stop high-precision color copier. In the current color copier, the recognition of this pattern has been preset.

If you copy with a copier, you can't output it directly, and the output product will have color distortion. This is also called Omron Ring, which consists of five circles and is a constellation figure arranged in Orion order.

After the implementation of this technology, Omron Ring is ideal to prevent color copiers from counterfeiting banknotes, so this technology has been added to the major currencies in the world. In 2004, 1999 edition 1 RMB was first added to this technology, and it was not until 2005 edition that Omron ring technology was added to the national banknotes.

There are many small circles on the RMB. In fact, only one small circle can form Omron ring technology, and the others are anti-counterfeiting obstacles.