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10.4" Diameter, 9.0" FL, Aspheric Fresnel Lens

Aspherically Contoured Fresnel Lenses

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Stock #46-390 5-7 Days
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NT$2,730 NT$4,550
Qty 1-10
NT$2,730 NT$4,550
Qty 11+
NT$2,384 NT$3,973
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下載產品資料
Diameter (mm):
264.16
Effective Focal Length EFL (mm):
228.60
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Acrylic
Coating:
Uncoated
Type:
Fresnel Lens
Wavelength Range (nm):
400 - 1100
Center Thickness CT (inches):
0.06
Diameter (inches):
10.4
Dimensional Tolerance (inches):
±0.05
Effective Diameter (inches):
10.0
Effective Focal Length EFL (inches):
9.00
Groove Density (grooves/inch):
100.00
Index of Refraction nd:
1.49
Operating Temperature (°C):
80 (Maximum)
Thickness Tolerance (%):
±40
Transmission (%):
85 (Typical)

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

產品系列說明

  • 薄型平面透鏡,適合對焦應用
  • 大型尺寸提供最大採光效果
  • 非球面溝槽輪廓提升效能

菲涅耳透鏡以輕量級塑膠薄膜表面模壓成型的一系列同心溝槽,取代了傳統透鏡的曲面。這些溝槽可充當單獨的折射面 (以橫截面檢視時與微稜鏡相似),能將平行光以極為近似的方式折向共同焦距。由於透鏡很薄,所以因吸收而損失的光線量很少。菲涅耳透鏡可兼顧效率與影像品質的要求。高溝槽密度有助於改善影像品質,而低溝槽密度則可提升效率 (符合聚光應用的需要)。在無限共軛系統中,透鏡刻有溝槽的一側應面向較長的共軛。

菲涅耳透鏡在聚光應用 (例如聚光系統或發射器/偵測器設備) 中最為常用。菲涅耳透鏡還可以用作放大鏡或投影透鏡,但是由於畸變度高而不建議使用。

 
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