1. The second facula curve of HMME dropped promptly to minimum after starting irradiation.

2. Light intensity of facula increases when the diameter of the trees increases, and there lies a correctitude .

3. So a new method to limit the facula was presented to improve illumination efficiency of light - pipe .

4. The laser facula area has some effects on the ion yield of multi photon ionization process.

5. The tracking precision is got by measuring the far - field facula posit.

5.

6. Using smoothing filter and average-force algorithm to position beacon's facula, then use kalman prediction algorithm with the adaptive capacity to achieve the recursive tracking algorithm.

7. Adopt imported reflect mirror and lens from America makes the facula thinner and the cut stronger.

8. The upper part of the spearhead is provided with a facula locating device.

9. The lens designed by this method has small size, high light efficient, accurate beam control, it can achieve the required uniform rectangular facula for the street lighting.

10. This paper discusses the design of deformable mirror in order to obtain special facula.