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+---
+title: DeviceLightEvent
+slug: orphaned/Web/API/DeviceLightEvent
+tags:
+ - API
+ - Ambient Light Events
+ - Experimental
+ - Interface
+ - NeedsBetterSpecLink
+ - NeedsMarkupWork
+ - 事件
+translation_of: Web/API/DeviceLightEvent
+original_slug: Web/API/DeviceLightEvent
+---
+<div>{{apiref("Ambient Light Events")}}{{SeeCompatTable}}</div>
+
+<p><code>DeviceLightEvent</code> 为 Web 开发人员提供来自光传感器或类似设备的、关于附近环境光水平的信息。例如,基于当前环境光水平调节屏幕的亮度,以便节省电量或提供更好的阅读性。</p>
+
+<h2 id="属性">属性</h2>
+
+<dl>
+ <dt>{{domxref("DeviceLightEvent.value")}}</dt>
+ <dd>环境光的亮度,单位为 {{interwiki("wikipedia", "lux")}}。</dd>
+</dl>
+
+<h2 id="示例">示例</h2>
+
+<pre class="brush: js">window.addEventListener('devicelight', function(event) {
+ console.log(event.value);
+});</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <thead>
+ <tr>
+ <th scope="col">规范</th>
+ <th scope="col">状态</th>
+ <th scope="col">备注</th>
+ </tr>
+ </thead>
+ <tbody>
+ <tr>
+ <td>{{ SpecName('AmbientLight', '', 'Ambient Light Events') }}</td>
+ <td>{{ Spec2('AmbientLight') }}</td>
+ <td>Initial specification</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="浏览器兼容性">浏览器兼容性</h2>
+
+
+
+<p>{{Compat("api.DeviceLightEvent")}}</p>
+
+<h2 id="参见">参见</h2>
+
+<ul>
+ <li>{{ event("devicelight") }}</li>
+ <li><a href="/zh-CN/docs/WebAPI/Using_Light_Events">使用环境光事件</a></li>
+</ul>