What is Reflectance
Reflectance is the measurement of the amount of light and heat that is reflected or absorbed by a certain color or surface. It is an important factor in determining the darkness or lightness of a color. Reflectance specifically focuses on the amount of light and heat that is reflected or absorbed, rather than the intensity or vividness of a color.
您可能也會感興趣
- 吸頂式 PIR 人體感應器，配備乾觸點繼電器輸出
- 12/24VDC 或 12/24VAC 低電壓供電
- 用於 EMS、HVAC 和建築控制輸入的 COM、NO 和 NC 隔離繼電器觸點
- 低壓直流嵌入式天花安裝微波人體感應開關
- 12 VDC / 24 VDC 輸入，支援 10-30 VDC 範圍
- 最大工作電流 10A，配備可調節延時、光感閾值及靈敏度
- 高負載嵌入式天花安裝微波人體感應開關
- 100-265 VAC 市電輸入，10A 型號
- 5.8 GHz 微波感應，配備可調節延時、光感閾值及靈敏度
- 嵌入式天花安裝微波人體感應開關
- 100-265 VAC 市電輸入，5A 型號
- 5.8 GHz 微波感應，配備可調節延時、光感閾值及靈敏度
- 適用於 220V 電源的天花安裝 RZ037 PIR 被動式紅外線佔空感應調光開關
- 最大工作電流 3A，額定負載 660W
- LUX 按鈕控制光線感應器開關及用戶設定之調光亮度
- 適用於 110V 電源的天花安裝 RZ037 PIR 被動式紅外線佔空感應調光開關
- 最大工作電流 3A，額定負載 330W
- LUX 按鈕控制光線感應器開關及用戶設定之調光亮度
- 低壓直流天花安裝微波人體感應開關
- 12 VDC / 24 VDC 輸入，支援 10-30 VDC 範圍
- 最大工作電流 10A，配備可調節延時、光感閾值及靈敏度
- 高負載吸頂式微波動態感應器開關
- 100-265 VAC 市電輸入，10A 型號
- 5.8 GHz 微波感應，配備可調節延時、光感閾值及靈敏度
- 吸頂式微波動態感應器開關
- 100-265 VAC 市電輸入，5A 型號
- 5.8 GHz 微波感應，配備可調節延時、光感閾值及靈敏度
- 低壓直流嵌頂式 PIR 動態感應器開關
- 12 VDC / 24 VDC 輸入，支援 10-30 VDC 範圍
- 最大工作電流 10A，具備可調式時間延遲、光照度閾值及靈敏度
- 高負載嵌頂式 PIR 動態感應器開關
- 100-265 VAC 市電輸入，10A 型號
- 360度偵測，具備可調式時間延遲、光照度閾值及靈敏度
- 嵌頂式 PIR 動態感應器開關
- 100-265 VAC 市電輸入，5A 型號
- 360度偵測，具備可調式時間延遲、光照度閾值及靈敏度
- 用於室內開關照明控制的無線開關及接收器套裝
- 100-230VAC，50/60Hz 接收器，額定電流 5A
- CR2032 電池供電無線開關，採用 2.4GHz 通訊
- 佔用感應（自動開啟/自動關閉）
- 12–24V DC (10–30VDC)，最高 10A
- 360° 覆蓋，直徑 8–12 米
- 延遲時間 15 秒至 30 分鐘
- 光感應器 關閉/15/25/35 Lux
- 高/低靈敏度
- 自動開啟/自動關閉佔用模式
- 100–265V AC，10A（需接零線）
- 360° 全方位覆蓋；8–12 米偵測直徑
- 延遲時間 15 秒至 30 分鐘；Lux 關閉/15/25/35；靈敏度 高/低
- 自動開啟/自動關閉佔用模式
- 100–265V AC，5A（需接零線）
- 360° 全方位覆蓋；8–12 米偵測直徑
- 延遲時間 15 秒至 30 分鐘；Lux 關閉/15/25/35；靈敏度 高/低
- 100V-230VAC
- 傳輸距離：最遠 20 米
- 無線動態感應器
- 有線控制
One specific measurement of reflectance is the Light Reflectance Value (LRV). LRV is expressed as a percentage and represents the total capacity of light reflected by a surface based on its color. The scale ranges from 0% for absolute black, which absorbs all light, to 100% for pure white, which reflects all light. For example, a black surface typically has a low LRV of around 5%, indicating that it absorbs about 95% of light, while a white surface has a higher LRV of around 85%, indicating that it reflects about 15% of light.
Reflectance is important in various industries, including interior design and architecture. It plays a crucial role in creating a certain mood and atmosphere in a room or building. Different color designs are chosen based on the desired reflectance properties to achieve specific results. For instance, hospitals and medical centers often use light tones or white colors, as they are considered sanitary and clean. Reflectance also aids in creating color contrast for visually impaired individuals in public spaces.
Furthermore, reflectance is relevant to engineers and scientists involved in designing solar lights and solar panels. Understanding the reflectance properties of different colors is crucial in designing efficient solar panels that can absorb as much light and heat as possible to generate electricity. Black is often preferred for solar panels as it has a high reflectance value, allowing it to absorb the most light and heat.
正在尋找動態感應節能解決方案？
歡迎聯絡我們以獲取完整的 PIR 動態感應器、動態感應節能產品、動態感應器開關以及人體感應／無人感應商業解決方案。
