Do you have holographic stamps in China?

20081From 24 to 27 October, 10, "2008 Beijing International Stamp and Coin Expo" was held in Beijing International Trade Exhibition Center. In order to cooperate with the promotion of this grand event, the State Post Bureau issued "Holographic Color Printing Stamps for Commemorating the Opening of the 29th Olympic Games" on124 October, with a total of 8 stamps. Overall specification: 200mm× 120mm. This is the first time that China Post has issued holographic stamps. (1988 10 18 10) In October, Austria issued the 1 set of holographic stamps in the world with a face value of 8 shillings. )

Holographic stamps, also known as "laser holographic stamps", like to be called "laser stamps" in Hong Kong, Macao and Taiwan. According to the annotation of "Holographic Materials" in China Philatelic Dictionary: Holographic Materials? Photosensitive materials for holography. Can be used to make holographic stamps. Holography uses laser as the illumination source, and divides the light emitted by the light source into two beams, one of which is directly emitted to the sightseeing film, and the other is emitted by the subject and then emitted to the photosensitive film. The superposition of two beams of light on the photosensitive film produces interference and forms different phases, thus recording the image information of the whole object, which has a strong three-dimensional effect. This kind of stamp usually sticks a holographic picture on a paper base, and the pattern part is a holographic image. The face value and memory are still printed on the paper base in order to stand out.