網誌

什么是反射

贺拉斯-贺

最後更新:2023年12月26日

什么是反射

反射是指光波遇到表面或边界时不吸收辐射能量,而是将光波弹离表面的现象。这一过程对我们感知自身不发光的物体起着至关重要的作用。

从 Rayzeek 运动传感器产品组合中获得灵感。

没有找到您想要的?别担心。总有其他方法可以解决您的问题。也许我们的作品集就能帮到您。

反射定律规定了光在遇到表面时的行为。根据这一定律,入射光照射到表面的角度(称为入射角)等于光从表面反弹的角度(称为反射角)。换句话说,入射角和反射角总是相同的。

通常可以观察到两种类型的反射: 鏡面反射 和漫反射。镜面反射是指光线从光滑表面(如镜子或抛光金属)反射出来。在这种情况下 反射光线 镜面反射可保持其原有方向,从而产生清晰明确的反射效果。镜面反射通常用于需要精确和集中反射的场合,如聚光灯或车头灯。

另一方面,当光线从粗糙或不规则的表面(如亚光墙壁或有纹理的织物)反射时,就会产生漫反射。在这种情况下,反射光线在照射到表面时会向不同方向散射,从而产生更加分散的漫反射。漫反射通常用于照明设计,以营造柔和均匀的照明效果,因为它有助于最大限度地减少眩光和刺眼的阴影。

了解反思的概念可以让专业人员控制 光分布 并达到理想的视觉效果。通过考虑入射角度和反射表面的特性,照明专家可以利用反射来提高能见度、减少眩光或营造特定的照明氛围。

也许您感兴趣的是

  • Ceiling-mounted PIR occupancy sensor with dry-contact relay output
  • 12/24VDC or 12/24VAC low-voltage supply
  • COM, NO, and NC isolated relay contacts for EMS, HVAC, and building control inputs
RZ048 recessed ceiling microwave motion sensor product image
  • Low-voltage DC recessed ceiling-mounted microwave motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • 10A max work current with adjustable time delay, Lux threshold, and sensitivity
RZ048 recessed ceiling microwave motion sensor product image
  • Higher-load recessed ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ048 recessed ceiling microwave motion sensor product image
  • Recessed ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
  • Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 220V power
  • 3A maximum working current with 660W rated load
  • LUX button controls light-sensor ON/OFF and user-set dimming brightness
  • Ceiling-mounted RZ037 PIR occupancy sensor dimmer for 110V power
  • 3A maximum working current with 330W rated load
  • LUX button controls light-sensor ON/OFF and user-set dimming brightness
RZ047 ceiling mounted microwave motion sensor switch
  • Low-voltage DC ceiling-mounted microwave motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • 10A max work current with adjustable time delay, Lux threshold, and sensitivity
RZ047 ceiling mounted microwave motion sensor switch
  • Higher-load ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ047 ceiling mounted microwave motion sensor switch
  • Ceiling-mounted microwave motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 5.8 GHz microwave sensing with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor top and side view
  • Low-voltage DC recessed ceiling mount PIR motion sensor switch
  • 12 VDC / 24 VDC input with 10-30 VDC range
  • Max work current 10A with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor front view
  • Higher-load recessed ceiling mount PIR motion sensor switch
  • 100-265 VAC line-voltage input, 10A model
  • 360-degree detection with adjustable time delay, Lux threshold, and sensitivity
RZ038 recessed ceiling PIR motion sensor front view
  • Recessed ceiling mount PIR motion sensor switch
  • 100-265 VAC line-voltage input, 5A model
  • 360-degree detection with adjustable time delay, Lux threshold, and sensitivity
RZ040 wireless switch and receiver kit
  • Wireless switch and receiver kit for indoor ON/OFF lighting control
  • 100-230VAC, 50/60Hz receiver with 5A rated current
  • CR2032-powered wireless switch with 2.4GHz communication
  • 占用(自動開/自動關)
  • 12–24V 直流(10–30VDC),最大 10A
  • 360° 覆蓋範圍,直徑 8–12 米
  • 延遲時間 15 秒–30 分鐘
  • 光感測器關/15/25/35 Lux
  • 高/低感度
  • 自动开启/自动关闭占用模式
  • 100–265V交流,10A(需要中性線)
  • 360° 覆蓋範圍;8–12 米探測直徑
  • 時間延遲 15 秒–30 分鐘;Lux OFF/15/25/35;感度 高/低
  • 自动开启/自动关闭占用模式
  • 100–265V AC,5A(需要中性線)
  • 360° 覆蓋範圍;8–12 米探測直徑
  • 時間延遲 15 秒–30 分鐘;Lux OFF/15/25/35;感度 高/低
  • 100V-230VAC
  • 傳輸距離:最多20米
  • 無線運動感應器
  • 有線控制
  • 電壓:2x AAA 電池 / 5V DC (Micro USB)
  • 日/夜模式
  • 时间延迟:15分钟、30分钟、1小时(默认)、2小时

發表評論

Chinese