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The Invisible Scam of Green Laser Pointer You May Encounter

When the world is totally shocked by the super emerald power of green laser pointer and swarm into the rare laser websites, they never think that they would pay dearly for this passion. I’m one of the victims who had sacrificed the hard-earned money for the not-userly-friendly laser beam.

I've personally had 5 lasers from those popular websites where you could nearly find the laser of any output power with the weird mummy names. So I feel obliged to tell a piece of truth about these green lasers and their sellers, coz bad news is bound to spread fast. All but the 200mw green laser pointer have not been performing to specs. I wonder why these lasers are made to be underpowered and those sneaky laser retailers really underrates the non-fishy mind of we laser lovers. Even if we are never able to do any research upon their specs in time.

You’ve got to be careful about those low-end lasers. I mean not only about the low price. Some laser sites sell lasers at pretty competitive price, but they tend to guarantee the long life expectancy of portable lasers, while some manufacturers tend to cut corners and some probably are missing their IR filter. Most laser lovers have been misled by the fuss about the IR filters made by the wicked lasers. I learnt that in some sense, optical brightness may be dimmed by the multiple wavelengths within the single laser beam. I later checked that one of my green lasers was putting out green at 532nm, but there is also very few infrared, at 808nm and/or 1064nm.But if one plans to buy a below 100mw green laser, you don’t have to be bothered by the IR filters, coz it influences little the power and brightness of a lower powered laser. So it has little to do with the effective cost of the product. Sometimes the module or design costs much more.

A good example is LaserPointerPen.Net company which tend to add IR filters to all green laser pens while those below also has a super high cost performance. Due to its limited stock that only covers three most upgraded laser series, its laser products obviously becomes the most competitive especially for those professionals. The self-appointed No.1 laser site wickedlasers spare no efforts to hire some orators to spread the life-and-death importance of the IR filter for any laser use, and god knows the mere reason is that they’re profiting big upon those cheap IR filters. Few pros deny admit this seeming-‘white’ lie.

I’m a laser lover and trying not to be biased against any laser manufacturers or retailers. Why I don't like wickedlasers is that they don't send the verified output of each laser they sell. Most reputable laser companies do this and their's are GUARANTEED over-spec, every single one.

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About the Author

1.Why do some cheaters wish to stay with the person they cheated on?
2.Being cutting-edge pays. I never reget buying the green laser pointer. from

Green laser brightness question best answer wins?

Some sites say green are 20x,30x,50x, or 60x brighter than red. Which one is true... and any good 50 mw modules out there? links, sites?

I would say it is more like 10x, but it depends on the exact colors of green and red you are talking about. The issue is not related to lasers, but to the human eye. We see green better than we see red. For example, look here:
http://en.wikipedia.org/wiki/Color_vision
The fifth image from the top is a plot of sensitivity to different colors for the human eye.

So given a light source with the same amount of power (say 5 mW), a green light will look brighter than a red one.

Of course, green laser pointers are often easier to make more powerful than red ones. This is not strictly true for all lasers, but it is generally true for the types of lasers used in laser pointers. So a 50 mW green laser will look much brighter than a 5 mW red pointer, because it has 10 times the power and your eye is 10 times more sensitive to that color.

Sony Develops Highly Efficient RGB Laser Light Source Module for Large Screen Projectors
Sony Corp. today announced the development of a RGB laser light source module suitable for large screen projectors such as digital cinema projectors. The module incorporates high power lasers of the three primary colors: Red, Green and Blue (RGB) with a combined output power of 21W (equivalent to 5,000 lumens), in a single package measuring just 530cc, among the industry's smallest.

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