亮度、照度、发光强度
分析光源时,通常需要测量光源的亮度或照度。亮度与感知亮度相关,以坎德拉/平方米表示,而照度是落在表面上的光量,以勒克斯或流明/平方米表示。
Neo | Prometheus Viewfinder | Asteria | |
---|---|---|---|
光谱颜色分析 | yes | yes | |
主波长和峰值波长 | yes | yes | |
亮度和照度 | yes | yes | yes |
发光强度 | 余弦校正器 | 余弦校正器 | 余弦校正器 |
Flicker | yes | ||
低亮度 | yes |
How are you measuring?
With fibers and other accessories even more type of measurements are possible. Often used accessories are integrating spheres, cuvettes for fluids, light sources or filter holders.
A cosine corrector collects the light from the half space under 180 degrees. A typical application is the illuminance measurement of a lighting situation.
Consumers are used to enjoy top-quality displays in their mobile phones, tablets, laptops and even cars. Emerging technologies such as lighting surfaces for office and home illumination are expected to look equally perfect. Both displays and luminous surfaces are the main application areas for imaging colorimeters.
Measuring the luminance or color values at a specific location of the device under test is a typical use case when measuring displays. It can, however, also be meaningful to assess reflected light.
Viewfinder 光谱仪
标准镜头 1.2° 光斑直径 4.56 mm ‑ 6.71 m
Viewfinder 光谱仪
微距镜头0.75° 光斑直径 0.96 ‑ 1.47 mm
2.1 mm 聚焦透镜色度计
0.001 - 30 000 cd/m² (UHL模式 190 000 cd/m²)
2.1 mm 聚焦透镜色度计(内置LED瞄点器)
0.001 - 30 000 cd/m² (UHL模式 190 000 cd/m²)
5 mm 色度计
0.001 - 30 000 cd/m² (UHL 模式 190 000 cd/m²)
10 mm 色度计
0.001 - 30 000 cd/m² (UHL模式 190 000 cd/m²)
10 mm 广角色度计
0.0003 - 7 500 cd/m² (UHL 模式 190 000 cd/m²)
20 mm 色度计
0.0003 - 7 500 cd/m² (UHL模式 48 000 cd/m²)
27 mm 广角色度计
0.0001 - 2 800 cd/m² (UHL模式 20 000 cd/m²)
光谱仪
可见光 380 - 780 nm
高端光谱仪
可见光 360 - 940 nm