Currently the most commonly used one-dimensional code, book bag food packaging, medicine boxes can see, we have no such a concept is the carbon dioxide laser engraving machine, no matter how bright the back cover of books, food boxes, medicine boxes or pattern color while the one-dimensional bar code is black, the bottom is generally white or pale translucent mouse-based laser engraving machine, is not it? Or you can now get your side of the one-dimensional look at the code. Here, I tell you, the color is very important, that bar code scanning equipment required for color, while natural junior high school physics book book, elementary school said, and black and white is the color of the biggest. As long as there is color, barcode scanners to read out the exact contents of one-dimensional code out. In the previous section, we discuss the one-dimensional code, and the two-dimensional code is the same, the two-dimensional code scanning equipment also to produce color, correct and complete in order to read its contents. This is why the background is white two-dimensional code, its design is black causes. Now we return to the problem of laser marking machine play barcode scanners can identify the one-dimensional bar code and two-dimensional barcodes, as long as we can make out of the bar code laser coders play a larger and background color can be, for example, white or light-colored or dark gray material in play barcode, or vice versa, in a black or dark-colored, low color, white or light-colored pattern play to be able to play a valid barcode. Company products include: fiber laser marking machines, semiconductor side pump laser marking machine, CO2 laser marking machine, end-pumped laser marking machine, laser inkjet printer and other industrial laser equipment. Dongguan Guan Jun laser processing equipment in place all of the light path, including the work area and the laser beam of laser energy reflected radiation and place are to be closed using the safety interlock device. However, diffuse objects for high-power laser beam can not be ignored. In the laser processing sites, the operator around the laser beam can be irradiated and reflection to the place were the possibility of the existence of a rough surface diffuse, diffuse should pay attention to protection of the human body. Laser systems work watch accessories laser engraving machine, you should use a beam attenuator or beam blocker laser engraving machine, to prevent persons subject to Class 3A, 3B or Class 4 laser class damage. Laser irradiance transmitting filter device or light of these observations Q must be less than the corresponding human eye limits the maximum allowable irradiation dose. When you open the shutter or variable attenuator observation device shall prevent exceeding emission limits up to Class 1 (AEL) laser irradiation to the staff; if it may be more than up to emission limit class l (AEL) of laser irradiation means to change from time to time can be prevented to open the optical attenuation amount of the attenuator. Personal protection while taking a engineering controls, but the laser plus]: the workplace is not possible to be completely and thoroughly sealed laser, laser light is reflected or scattered by the possibility of laser damage some people still exist, so the officer need to use personal protective supplies such as protective glasses, protective gloves, protective clothing and masks. Jun crown laser research and development products are: Dongguan laser marking machine, fiber laser marking machine, the semiconductor side pump laser marking machine, CO2 laser marking machine, laser and other industrial equipment. Fiber laser engraving machine | Laser crown Jun (certified) | Chang'an laser engraving machine provided by Dongguan Jun Laser Equipment Co. crown. Dongguan Guan Jun Laser Equipment Co., Ltd. (www.dgaprime.com) is a leader in Dongguan, Guangdong, machinery and industrial products cooperation projects over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Jun crown laser leadership with the staff warmly welcome all inquiries negotiations to create the crown Jun laser a better future.