什么是反射率
反射率是测量某种颜色或表面反射或吸收的光和热的量。它是决定颜色明暗的一个重要因素。反射率特别注重反射或吸收的光和热的量,而不是颜色的强度或鲜艳度。
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- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
光反射值 (LRV) 是反射率的一种具体测量方法。LRV 以百分比表示,代表表面根据颜色反射光的总能力。其范围从 0% 表示绝对黑色(吸收所有光线)到 100% 表示纯白色(反射所有光线)。例如,黑色表面的 LRV 通常较低,约为 5%,表示它吸收了约 95% 的光,而白色表面的 LRV 较高,约为 85%,表示它反射了约 15% 的光。
反光在包括室内设计和建筑在内的各行各业中都很重要。它在为房间或建筑营造某种情调和氛围方面起着至关重要的作用。根据所需的反射特性来选择不同的色彩设计,以达到特定的效果。例如,医院和医疗中心通常使用浅色调或白色,因为它们被认为是卫生和干净的颜色。反射率还有助于在公共场所为视障人士营造色彩对比。
此外,反射率与参与设计太阳能灯和太阳能电池板的工程师和科学家息息相关。了解不同颜色的反射特性对于设计高效的太阳能电池板至关重要,它可以吸收尽可能多的光和热来发电。黑色通常是太阳能电池板的首选,因为它的反射率高,能够吸收最多的光和热。


















