The tests used in standards for evaluating smoke alarms were developed back in the 1980s. However, despite changes in building materials since then, smoke alarms remain reliable, says Chagger: "They still respond to all the main fires we get today."
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同时，维信诺的第四代发光材料 PSF（磷光敏化荧光）配合 OLED 叠层架构，已经通过调整不同发光层的出光角度实现防窥，原理同样非常底层。