| 摘要 |
When a VDU screen is viewed under conditions of high ambient light, such as when a television monitor is used for an outside broadcast, or when sun shines on the VDU screen of a bank-note dispensing machine, the ambient light reflected from the screen can make it extremely difficult for the user to discern the image displayed on the screen. Also, VDU screens used in normal office lighting conditions can cause eye strain. The present invention provides a hood assembly (1) for use with a display having an outwardly facing display surface, to reduce unwanted ambient light reflected from said outwardly facing display surface, the hood assembly comprising a tubular hood body (2) having internal wall surfaces (3 to 6), and a partially reflecting mirror assembly (8) of substantially tent shape with the apex (14) of the tent shape pointing away from the display. The tent shape can be in the form of a ridge tent defined by two mirror panels of a concave shape as viewed from outside the hood, the mirrors meeting at the ridge of the tent shape, or in the form of a curved cone (50). |
