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檢視所有 73 產品系列

0.4 OD 50mm Dia, Absorptive ND Filter

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Stock #65-812
NT$2,954
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Qty 1-10
NT$2,954
Qty 11+
NT$2,607
Volume Pricing
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Coating:
Uncoated
Diameter (mm):
50.00
Thickness Tolerance (mm):
±0.5
Glass/Filter Number:
Optical Density OD (Average):
0.4 ±0.05
Index of Refraction nd:
1.504
Surface Quality:
80-50
Transformation Temperature (°C):
525
Thickness (mm):
2.50
Transmission (%):
40.0 (average)
Type:
Neutral Density Filter
Blocking Wavelength Range (nm):
400 - 700
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
ND Filter Glass
Dimensional Tolerance (mm):
±0.1
Parallelism (mm):
<0.02

Regulatory Compliance

RoHS 2015:
REACH 201:

產品系列說明

  • 透過吸收 (而非反射) 減弱可見光
  • 可堆疊多個濾光片以提升攔截效果
  • 提供的光學密度介於0.1至4.0之間
  • 也可預先安裝於 C 接環外框

這些濾光片在可見光區域內擁有高水準的光譜穿透特性,可透過吸收 (含極少的反射) 來減弱光線。通常,吸收型濾光片的中性與密度是材料與厚度的函數。由於Hoya中性密度濾光片具有特定光學密度,因此厚度只是玻璃類型的函數。這些濾光片在光線控制應用中非常有用,可用於量測檢測設備及成像中的曝光控制。光學密度上升時,光譜會發生變化。

光學密度會展示相加關係,例如,將光學密度值分別是0.6與0.9的濾光片進行堆疊可產生1.5的光學密度。光學密度與穿透率的關係由以下公式表示:T = 10^-OD x 100 = 穿透率百分比。

吸收型中性密度濾光片套件

#55-222包括6個濾光片,光學密度值分別是0.15、0.3、0.4、0.6、0.9及2.5。裝在具有泡沫內襯的木箱中。

#63-468, #63-469, #63-470#66-155各包括14個濾光片,光學密度值分別是0.1、0.15、0.2、0.3、0.4、0.5、0.6、0.7、0.9、1.0、1.3、1.5、2.0及2.5。請注意,只有光學密度3.0不包括在這些套件中。裝在具有泡沫內襯的木箱中。

濾光片模擬軟體

請按此處下載 HOYA 有色玻璃濾光片模擬軟體,以用於計算每種 HOYA 玻璃類型的內部和外部穿透率。此軟體可以根據使用者指定的厚度來模擬個別濾光片的效能。

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