Compare Model Drawings, CAD & Specs Availability Price
Right-Angle Prism, ValuMax, N-BK7, 10.0 mm, Uncoated
$60
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 10.0 mm, Aluminized Hypotenuse
$70
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 12.7 mm, Uncoated
$60
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 12.7 mm, Aluminized Hypotenuse
$70
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 15.0 mm, Uncoated
$61
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 15.0 mm, Aluminized Hypotenuse
$68
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 20.0 mm, Uncoated
$54
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 20.0 mm, Aluminized Hypotenuse
$70
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 25.4 mm, Uncoated
$69
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 25.4 mm, Aluminized Hypotenuse
$80
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 30.0 mm, Uncoated
$77
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 30.0 mm, Aluminized Hypotenuse
$99
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 40.0 mm, Uncoated
$123
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 40.0 mm, Aluminized Hypotenuse
$171
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 5.0 mm, Uncoated
$49
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 5.0 mm, Aluminized Hypotenuse
$63
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 50.8 mm, Uncoated
$171
In Stock
In Stock
Right-Angle Prism, ValuMax, N-BK7, 50.8 mm, Aluminized Hypotenuse
$209
In Stock
In Stock

Specifications

  • Wavelength Region
    Visible and NIR
  • Material
    N-BK7
  • Surface Quality
    60-40 scratch-dig
  • Surface Flatness
    λ/2 at 632.8 nm over the clear aperture
  • Clear Aperture
    ≥ central 85%
  • Damage Threshold
    Aluminum hypotenuse: 100 W/cm2 CW, 10 mJ/cm2 with 10 nsec pulses, typical
  • Size Tolerance
    +0/-0.25 mm
  • Chamfers
    0.25-0.50 mm face width
  • Chamfers Angle Tolerance
    45°
  • Cleaning

Features

Total Internal Reflection

By means of total internal reflection (TIR), a right-angle prism may be used as a 90° reflector or as a 180° retroreflector. Except for reflection losses from the entry and exit faces, TIR exhibits 100% reflectivity over a very broad wavelength range. The reflecting surface should be coated with protected aluminum if the incidence angle exceeds that acceptable for TIR or if the environment does not allow the reflecting surface to be kept clean, as TIR requires.

Optional Aluminized Hypotenuse

The reflecting surface should be coated with protected aluminum if the incidence angle exceeds that acceptable for TIR or if the environment does not allow the reflecting surface to be kept clean, as TIR requires. The hypotenuse can also be used as a first surface reflector. In this case, if there is an overcoat of black paint, it should be removed with acetone.

N-BK7 for VIS and NIR Applications

N-BK7 is an excellent lens material for most visible and near infrared applications. It is the most common borosilicate crown optical glass, and it provides great performance at a good value. Its high homogeneity, low bubble and inclusion content, and straightforward manufacturability make it a good choice for transmissive optics.

RoHS Compliant

These prisms have been tested for dangerous substances like Pb, Cd, Hg, Hex-Cr, PBB, and PBDE and have been found to be in compliance with RoHS allowable levels.