随着数字办公方式的发展、办公手段的更新，投影机技术逐步走向成熟，其价格也不断接近用户心理价位，因此投影机已经迅速普及到教育、军队、商业、机关等行业的办公领域。与几年前相比，今天的投影机无论是产品、技术还是市场都已经发生了很大的变化。作为一种表现力极佳的办 With the development of digital office methods and the update of office methods, the projector technology has gradually become mature and its prices are constantly approaching the psychological level of users. As a result, projectors have rapidly spread to the office fields of education, military, commercial and institutional sectors. Compared with a few years ago, today’s projectors, whether it is products, technology or the market have undergone great changes. As a very expressive office