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Right Angle Prism

  • Introduction

Right Angle Prism


Right angle prisms turn light through 90° by internal reflection from the hypotenuse, or 180° from two right angle surfaces. When the light incident angle is perpendicular to the right angle surfaces, the light will be reflected at the surface of glass/air interface.


When the input light is incident from hypotenuse surface, the light will be fully reflected in the glass / air interface at the right angle surfaces. The second total reflection occurs at next right angle surface.


Compared to regular reflective mirrors, right angle prisms are easily to be mounted; further its reliable mechanical stress has better stability and strength. Hence right angle prisms have been considered as suitable alternatives to reflective mirrors in various applications.


Hyperion Optics supplies a range of right angle prisms to meet UV-Visible-NIR applications, with high surface quality and tight tolerance angles.  Our materials selection ranges from BK7, Bak4, fused silica, ZnSe, CaF2 etc.



Material tips for your application:


  • For working wavelength down to 175nm or so, with low thermal expansion requirement, Fused silica is the right choice with tighter tolerance control due to its excellent mechanical stability.
  • For visible and NIR wavelength, N-BK7 or CDGM H-K9L is suitable and cost effective.
  • For infrared wavelength, ZnSe and germanium are the right material to pick up.
  • Calcium fluoride has relatively wide transmittance range from 0.18~8um, it is the best choice when your application covers such wide transmission range.



Hyperion Optics has full capability of processing right angle prisms based on the materials we proposed above with 3 precision levels fit your actual demand.



Right Angle Prism

COMMERCIAL GRADE

FACTORY STANDARD

PRECISION GRADE

Dimension Tolerance(mm)

±0.05

±0.03

±0.0125

Angle Tolerance

5‘

3’

30"

Cosmetic(MIL-C-13830A)

80-50

40-20

10-5

Flatness  @632.8 nm

2 Lambda

1/2 Lambda

1/10 Lambda

Coating (T% avg) VIS

96-98%

99%

99.5%

Coating (R% avg) VIS

96-98%

99%

99.5%

Materials

BK7, Bak4, fused silica, ZnSe,Ge,CaF2


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Corporate Info

Contact

  • TEL:+86-25-83307137
  • FAX:+86-25-86626312
  • EMAILrfq@hypoptics.com
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    BaoXiang Road#6, Nanjing,China