菲利浦已经对电视接收机进行了五十多年的研究。从(1936/1937)开始有直视接收机和投影接收机两种。两种系统的图象都是从阴极射线管(CRT)获得。直视接收机中,在管的荧光屏上直接观察图象。在投影电视中,是通过光学系统把小管的荧光屏图象投影到大屏幕上。 Philips has conducted more than 50 years of research on television receivers. From (1936/1937) there are two kinds of direct-view receiver and projection receiver. Both system images are obtained from a cathode ray tube (CRT). Look directly into the receiver and view the image directly on the tube’s phosphor screen. In the projection TV, through the optical system to the tube of fluorescent screen image projected onto the big screen.