Arrangement of and method for improving the image quality, in particular for image projection arrangements
An image projection arrangement for projecting an image, comprising: a) a scanner for sweeping a main laser beam along mutually orthogonal scan directions to project a pattern of scan lines each having a number of pixels; b) a control device which is operatively connected to the scanner, for causing selected pixels to be illuminated, and rendered visible, to produce the image; and c) having an optical arrangement for generating a plurality of constituent laser beams having respective output powers and mutually orthogonal polarizations, and a polarization beam combiner for combining the constituent laser beams to form the main laser beam with an output power greater than each output power of the constituent laser beams, to increase the brightness of the illuminated pixels.
Large-scale construction projects frequently appear which make people pay more attention to the performance evaluation.This paper established the large-scale construction projects'performance evaluation index system and carried out comprehensive evaluation of the performance with a combined model of fuzzy theory and the matter-element theory.The analytic hierarchy process and the membership function were used to determine the weights of indicator elements and the membership matter-element.Finally,the study used the performance indicator system in construction phase for a large-scale project as an example to verify the fuzzy matter-element correctness,rationality and feasibility.