The infrared defect of led flash light

One of the differences, there is a blue filter colors in the infrared part of the waveform, that is, wavelength 780 ~ 1000 nm, peak of the condition is indeed the reduction of down, closer to AM1.5G spectrum (yellow waveform) Company name information photoelectron can produce 8 photoelectric effect depends on photoelectron energy is greater than the surface of the object of electronic work function A0. Different substances have different work function, that every object has a corresponding optical frequency threshold, called the red limit of frequency or wavelength limit. 2.4GHz technology of  green laser pointer contains advantages of anti-interference, transmission speed, transmission distance and so on.Red light at frequencies below the frequency limit, the photon energy is not enough to escape the object of the e, which is less than the limit frequency of the incident light red, light intensity and then it does not produce large photoelectron emission; the other hand, the incident light frequency is higher than the red limit frequency, even low light, a photoelectron will be shot. 1, outside the photoelectric effect, in the light under the action of objects within the launch of electronic escape out of the surface photoelectric effect phenomenon known as the outside. Electrons emitted to the outside called a photoelectron. Based optoelectronic devices outside of the photoelectric effect photoelectric tubes, photomultiplier tubes.The 2.4GHz technology applied by  green laser pointer  is widely used currently. (2) of the photoelectric effect when light shines on an object, so that the object of the resistivity ρ changes, or photo-electromotive force generated within the phenomenon called the photoelectric effect, which occurred in the semiconductor. According to different works, within the photoelectric effect is divided into photoconductive effect and photovoltaic effect into two categories: (1) photoconductive effect in the influence of light, electron absorbs photon energy from the bonding state of transition to a free state, which leads to material conductivity changes, a phenomenon known as the photoconductive effect. Optoelectronic devices based on this effect have photosensitive resistance. 2) the photovoltaic effect in the light so that objects can be produced under the direction of the electromotive force of a certain phenomenon called the photovoltaic effect. The 2.4GHz wireless linking technology could overcome the infrared defect of led flash light.Optoelectronic devices based on the effect of light cells and photosensitive diodes, transistors. 1 2 hν = mυ0 + A0 2 Company Information 9 QE measuring instrument measuring principle Definition: Number of collected electrons per incident photon at a specific wavelength in percent units definition: incident solar photons of a specific wavelength generated by electronic ( ratio) as a percentage of units + N, hν = hc / λ n, e-IPCE = n / N (%) Company information 10 History of the development of laser invention of laser science and technology in the 20th century, a major achievement. It allows people to drive finally have the ability to measure very small number of very, very chaotic movement of molecules and atoms of light-emitting process, resulting in generation, coherent light amplification ability. The rise of science and technology of laser light to the understanding and use of human has reached a new level.The 2.4GHz wireless linking technology helps  green laser pointer  to cross through obstruction. The birth of the history of lasers can be divided into several stages, one of which Einstein's 1916 concept of stimulated emission is an important theoretical basis. This theory that the particles of matter in high energy state by an energy equal to the energy difference between two energy levels of photons role will shift to the lower state, and produce a second photon, with the first photon emitted at the same time, this is the stimulated emission.