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现阶段多媒体投影教学越来越普及,投影画面质量的好坏,不仅关系到教学效果,还影响着学生的视力健康。投影光源是决定投影质量的重要因素之一,当前占市场主导的是使用传统光源的LCD投影机,但随着激光显示技术取得了重大进展,出现了使用新型固态光源的激光投影机。为了提高教学效果和教学质量,以及为学校选购投影机作为多媒体教学工具提供技术参考,文章从投影光源的角度来分析比较两者投影质量的差别。
Multimedia projection teaching at this stage more and more popular, the quality of projection screen is good or bad, not only related to the teaching effect, but also affect the students’ eyesight health. Projection light sources are one of the important factors that determine the quality of the projection. Currently, market-led LCD projectors use traditional light sources. However, as laser display technology has made significant progress, laser projectors using new solid-state light sources have emerged. In order to improve teaching effectiveness and teaching quality, as well as to provide technical reference for schools to purchase projectors as multimedia teaching tools, the paper analyzes and compares the difference of projection quality from the perspective of projection light source.