A. Quality LASERS will have optical quality GLASS lenses and collimators and Infrared filters (in the case of red and green LASERS) incorporated into their design, while the cheap knock-offs (which are often packaged in the identical enclosures) will use PLASTIC lenses and optics and omit the Infrared filter. The cheap knock-offs will appear identical to the good quality LASERS, but their plastic optics tend to deteriorate over time, drastically affecting the performance of the unit.
The cheap knock-offs will also light matches and pop balloons more readily than their quality counterparts because the Infrared filter is omitted. The omission of an IR filter makes the LASER dangerous to operate, since Infrared is not visible. Lack of an IR filter also makes the LASER illegal to sell in the United States.
Direct Blue LASERS such as the Cobalt 2000 do not generate ANY infrared radiation at all Remember that you are buying a LASER for its visible beam properties. Cheap LASERS rated for ... more.
A. Quality LASERS will have optical quality GLASS lenses and collimators and Infrared filters (in the case of red and green LASERS) incorporated into their design, while the cheap knock-offs (which are often packaged in the identical enclosures) will use PLASTIC lenses and optics and omit the Infrared filter. The cheap knock-offs will appear identical to the good quality LASERS, but their plastic optics tend to deteriorate over time, drastically affecting the performance of the unit.
The cheap knock-offs will also light matches and pop balloons more readily than their quality counterparts because the Infrared filter is omitted. The omission of an IR filter makes the LASER dangerous to operate, since Infrared is not visible. Lack of an IR filter also makes the LASER illegal to sell in the United States.
Direct Blue LASERS such as the Cobalt 2000 do not generate ANY infrared radiation at all Remember that you are buying a LASER for its visible beam properties. Cheap LASERS rated for ...
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.