Contact Us

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


Related Content
  • KTP Crystal

    KTP Crystal

    March 14, 2017KTP crystal is mostly used as nonlinear crystals for frequency doubling of solid-state Nd:YAG crystal or Nd:YVO4 crystal laser, as it has large nonlinear optical coefficients, wide angular bandwidth a...view
  • Protective Windows

    Protective Windows

    March 14, 2017Protective Window is applied to isolate different physical environments while allowing light to pass through. When selecting windows, please consider the material, transmission, scattering, wave front...view
  • Micro Sphere Lenses

    Micro Sphere Lenses

    February 17, 2017With the rapid growing market of consumer electronics and mobile phones, miniature cameras performance is becoming more challenging compared to years ago. However, manufacturing cost, packaging, imagi...view