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Broadband Polarizing Cube Beamsplitters

Beamsplitter Cubes are constructed by cemented two right angle prisms.  The hypotenuse of one prism is coated with polarization dielectric coating.
  • product origin:

    China
  • shipping port:

    Fuzhou China
  • lead time:

    4 working weeks
  • payment:

    T/T Payment, Western Union
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  • description

Compared with beamsplitter plate, beamsplitter cube has the following advantages:


* Identical path length for both the reflected and the transmitted beams
* The transmitted beam is neither displaced nor deflected
* Stable and compact
* Easy operation
* Easy for mounting/aligning
 
Specifications:
 
Material: N-BK7 Grade A Optical Glass
Dimension Tolerance: +/-0.1mm
Flatness: λ/4@633nm
Beam deviation: 3 arc min
Surface Quality:  60-40
Clear aperture:  >90%
Front surface (S1): Partial reflective coating
Back surface (S2):  AR coating
Bevel: Protective
Standard Coating:T/R=50/50±5%, for random polarization ; 
                             T=(Ts+Tp)/2,R=(Rs+Rp)/2
 
Standard 
Wavelength(nm)
Narrow Band 488, 532, 632.8, 650, 808, 850, 980, 1064, 1310, 1550nm
Broadband 450-650, 650-900, 900-1200, 1200-1550, 1500-1610nm
Size (mm) 2.1x2.1x2.1 3.2x3.2x3.2 5x5x5 10x10x10
12.7x12.7x12.7 20x20x20 25.4x25.4x25.4 30x30x30
 

Note: Other sizes, split ratio and coating are available upon request.
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· Developed for 2/3" image format
· Low distortion
· High relative illumination

· Focus and iris fixed with screw


Product information: Custom designs are available upon request.

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1、What Metallic Coated types can Uni-Optics supply?


Uni-Optics mainly offers four coating types, including:

1) UV Enhanced Aluminum : Ravg > 85% from 250nm to 400nm

2) Protected Aluminum: Ravg > 87% from 400nm to 800nm

3) Protected Silver: Ravg > 95% from 400nm to 20um

4) Protected Gold: Ravg > 98% from 650nm to 16um



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Metallic coated mirror have many key features below:

Wide spectral range

Not sensitive to the incidence angle and polarization state

Low cost

Non-durable

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Low laser damage threshold


3、What UNI Optics can do for you?


Common Specifications:

Substrate Materials: N-BK7, Fused silica, Pyrex;Float glass

Dimensional tolerance: +/-0.1mm

Surface quality:  60-40

Parallelism:  3’

Flatness: λ/4 per 25mm@633nm

Bevel: Protective

One surface: Polished and Metallic coating

The other surface: Fine ground


Note: Aluminum is the most widely used metal reflection film, from near UV to near IR, have high reflectivity, and with low cost. Silver has higher reflectivity in the visible and near infrared wavelength than the aluminum film, but the silver in the air will be rapid oxidation, color darkening, makes the film performance and firmness declined rapidly. Gold film has a good consistency with high reflectivity in the near, middle and far infrared range, can control the thermal radiation effectively, but it is relatively soft, easy bruising, and should be paid very close attention to clean, and the cost is very high.




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Product information: Custom designs are available upon request.

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