Gold Flat Mirror BK7 25mm Diameter

Ref:207148
Gold (Au) coated reflection mirrors have high reflectance over wide infrared range.
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€132.00 Excl. Tax €158.40 Incl. Tax
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Data sheet Gold Flat Mirror BK7 25mm Diameter

Description

Gold (Au) coated reflection mirrors have high reflectance over wide infrared range.

Chromium (Cr) is used as the undercoated to better reinforce the adhesion of gold to the substrate.

Gold mirrors with silicon substrates have higher durability than glass because gold coating adheres much stronger to silicon and has a higher thermal conductivity. (thermal conductivity of silicon is 111 times better compared to glass)

Other Specifications

- RoHs : Yes
- Material : BK7
- Optics Size : φ25mm
- Rear surface : Polished
- Surface Flatness (Convert at 10.6μm) : λ/160
- Surface Flatness (Wavelegth 632.8nm) : λ/10
- Laser Damage Threshold : 1.2kW/cm2 (CW laser)
- Parallelism : <3′
- Quantity : 1 piece
- Type : Glass Circle
- Thickness t : 5mm
- Material : BK7 / Hard glass (Pyrex® etc.) / Silicon
- Clear aperture : Circle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
- Coating : Cr (Chromium)+Au(Gold) 
- Surface Quality (Scratch-Dig) : 40−20

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