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積分球
Integrating Sphere

積分球基本是一種量測用工具,是光的收集者。由外面打入積分球的光經過收集,在球殼內部形成擴散效果,達到均勻光的效應。再經過套在積分球球殼上的光偵測器可經確作光、色度的量測。積分球內部包含一個遮板,隔絕偵測器不要直接照射到待測物的光,造成量測誤差。積分球內部塗佈高反射率的材料-硫酸鋇,可達到98%的擴散效果。光譜範圍是包含紫外線、可見光、不可見光全波段 200-1800nm。
Integrating Spheres generally function as a light collector. The collected light can be used as a diffuse illumination source or as a measurement source. The basic principle of operation is that light enters the integrating sphere through the sample port, goes through multiple reflections and is scattered uniformly around the interior of the sphere. A photo detector which is placed at the port in the sphere wall sees an output which is completely independent of the angular properties of the input light. A baffle placed inside the sphere, is used to prevent the detector from directly viewing the "hot" spot where the input beam of the source initially strikes the sphere wall. The inside of the integrating spheres are made out of highly reflective diffuse material; that gives a light diffuse reflection (>98%) over a wide wavelength range (200-1800nm), covering UV, VIS, and NIR spectral regions.

產品應用 APPLICATIONS
• 光收集者 As a light collector
• 可當均勻光源 As uniform light source
• 照度及輻射的校正工具 Luminance/Radiance calibration
• 反射率量測 Reflectance measurement(Color measurement, Fluorescence pectroscopy)
• 光束量測 Beam Power measurement(total power of a beam of optical radiation)
• 光通量量測 Lamp Flux measurement(total geometric luminous flux of a light source)
• 雷射量測 Laser Power measurement
• 紅外光量測 IR Reflectance measurement
• 輻射光量測 Irradiance measurement(Laser, LED, and Halogen lamps)

產品特色 FEATURES
• 鋁合金陽極染黑外殼(ISP-035,ISP-050,ISP-100,ISP-150)
• 玻璃纖維外殼(ISP-300,ISP-500,ISP-1000,ISP-1500,ISP-2000), 擠型鋁腳架
• 內部為圓形, 含遮板, 輔助燈, 標準燈
• 內壁塗裝主要材料為純硫酸鋇,化學穩定性佳,日久不易泛黃,符合CIE要求,良好漫反射及反射率
• 積分球開口可隨使用者需求設計
• 整體球殼量輕, 搬動容易

  Internal DIA (mm) Port number Input (sample) Port (mm) Detector Port (mm) External DIA (mm) Baffle&Stand Standard Lamp Auxiliary Lamp

Shell

Material
Coating Material
ISP-035 35 2(3) 8 8 52 Yes No X X ALUMINUM BaSO4
ISP-050 50 2(3) 14 14 66 Yes No X X ALUMINUM BaSO4
ISP-100 100 2(3) 14、30 14 120 Yes No X X ALUMINUM BaSO4
ISP-150 150 2(3) 14、50 14 170 Yes No X X ALUMINUM BaSO4
ISP-300 300 2(3) 14、80 14 440(W)X550(H) Yes Yes X X GF BaSO4
ISP-500 500 2(3) 14、100 14 670(W)X620(H) Yes Yes Yes 10W Yes 10W GF(附平台) BaSO4
ISP-1000 1000 2(3) 14.14 14 1400(W)X1350(H) Yes Yes Yes 20W Yes 10W

GF(附平台))

BaSO4
ISP-1500 1500 2(3) 14.14 14 1800(W)X1800(H) Yes Yes Yes 20W Yes 10W

GF(垂吊裝置)

BaSO4
ISP-2000 2000 2(3) 14.14 14 2300x2300x2250 Yes Yes Yes 20W Yes 10W

GF(垂吊裝置)

BaSO4

積分球內部鍍膜反射率

380nm to 1100nm
96% ± 2 %
鍍膜材料BaSO4純度 99 % 以上
灯源經積分球後色溫差異 <0.5%

Typical8˚ Hemispherical Reflectance of Barium Sulfate Coated Sphere
(nm)    Reflectance (nm)    Reflectance
250    0.939 1200    0.970
300    0.950 1300   0.972
400    0.983 1400    0.944
500    0.984 1500    0.919
600    0.983 1600    0.931
700    0.984 1700    0.938
800    0.982 1800    0.917
900    0.983 1900    0.852
1000    0.983 2000    0.848
11000    0.981 2100    0.853

  如何選擇正確的積分球 How to Select the Right Sphere?
 當你要應用積分球,下列幾點是你首先要先考慮的
   1. 積分球直徑對待測物比率
 積分球直徑需是你套在積分球上待測物的尺寸的1½倍數。(放入球體內量測的待測物不在此限)
  2. 球面開口最大容忍度
 球面開口部份以不超過球面面積的5%。如開口面積超過5%,建議選擇大的球,計算公
  式如下:
  Port area = pg²
  Sphere surface area = pD²
  g = port radii
  D = sphere diameter

Mechanical Drawing