Why is a 500mw Green LASER three times as expensive as the Cobalt 2000?
A. Good question. The simple answer is “technology”. The Direct Blue LASER diode generates a 445nm coherent light directly it does not need any precision optics to convert the light to another wavelength. On the other hand, the 532nm Green LASERS require a “stack” of precision-aligned, delicate optics that convert Infra-Red light into the visible wavelength (green). These optics in a quality LASER consist of a “stack” of crystals that must be aligned precisely in order for the LASER to work. These additional optical components more than triple the cost of producing a comparably powered LASER. Q. Why haven’t “Direct Green” LASERS been developed. A. Another good question. The simple answer is that the technology has not been developed because there has not been a commercial application that would justify the R&D cost to develop such a diode. As of August 2010, there were rumors that a “direct green” LASER diode was being developed, but this is unsubstantiated.
A. Good question. The simple answer is “technology”. The Direct Blue LASER diode generates a 445nm coherent light directly it does not need any precision optics to convert the light to another wavelength. On the other hand, the 532nm Green LASERS require a “stack” of precision-aligned, delicate optics that convert Infra-Red light into the visible wavelength (green). These optics in a quality LASER consist of a “stack” of crystals that must be aligned precisely in order for the LASER to work. These additional optical components more than triple the cost of producing a comparably powered LASER. Q. Why haven’t “Direct Green” LASERS been developed.A. Another good question. The simple answer is that the technology has not been developed because there has not been a commercial application that would justify the R&D cost to develop such a diode. As of August 2010, there were rumors that a “direct green” LASER diode was being developed, but this is unsubstantiated.
