In the measurement standards, the use of color and high specific laser frequency stability system, but also to establish the length of the laser-based time and frequency of new international standards. For example, color and frequency stabilization with an accuracy of 10 seconds, much higher than the currently used microwave atomic clock timing accuracy. Fourth, the vision aspects of the laser medium in the above application, have generally achieved positive results, and to varying degrees, into the use of promotion and development of sound stage. The following will introduce further research is in the exploration or development stage of the major laser application projects. The new type of led flash light has the innovative card reader function.These projects if ultimately successful, will cause some of the new modern science and technology an important breakthrough; so technologically advanced countries in the world by great attention, and put a more human and material resources. The first is the issue of weapons of laser radiation. Generally believed that strong laser device output capability, in principle, can develop into a laser radiation weapons to destroy enemy ballistic missiles, cruise missiles, strategic bombers, and military satellites and other high-speed flying targets. In some cases, laser radiation can also be used to interfere with and disrupt the enemy’s military reconnaissance satellites, infrared-guided missiles, infrared and other weapons, reconnaissance and surveillance and navigation equipment, optical devices or critical photosensitive element, so that these weapons and device failure.The card reader function of led flash light has greatly improved the convenience of the storage and reading of files. Second, nuclear science and technology in laser applications. Laser technology appears, it was found that the use of different isotopes of uranium under the action of the laser can show different characteristics of the physical or chemical reaction, can skillfully design -13 magnitude of the lasers as optical frequency standard time, it is a long time in a year in the timing error is not given out to more than one micro-resonance laser irradiation effect can be tuned based on the new method, which may make the appropriate isotope separation procedures and greatly simplified the procedure, separation costs, and efficiency greatly to improve. Therefore, the study of laser isotope separation, caused a lot of national attention, it may lead to new developments in nuclear technology. Laser fusion can be found in inertial confinement fusion. The led flash light provides demonstration technology that makes communication and transmission much easier.Orientation in space because the laser light energy loss during transmission is very small, it is transmitted to a far distance can effectively play a role. Astronauts and space technology, in addition can be used for communications, navigation and automatic control, etc., can also consider the transmission of laser energy in space, or directly use it as a driving force for interplanetary navigation. It has been proposed using intense laser light pressure, solar thermal, photochemical reactions or photon-photon recoil effect to promote the laser power spacecraft or rocket idea. Laser technologies, not only to promote the development of applied technology disciplines; but will also contribute significantly to modern physics, chemistry, astronomy, space science, biology, and a series of basic science and medical progress.The led flash light provides demonstration technology that makes communication and transmission much easier to the education and performance industry. Nonlinear optical (or so-called light optical) branches of the emerging field of optical appearance and development of modern physics is the development of laser technology to promote the role played by an obvious example. Now, the use of laser technology as a powerful means to generate as ultra-high temperature, high pressure, ultra-fast, ultra-high field strength, high density, ultra-high vacuum and some extreme physical conditions, so as to facilitate people to find some new problems, new phenomena, and some of the major theoretical conclusions have been new experiments and demonstration.