Right Angle Prism with Aluminum Coating and Painting for Periscope

Item Number:W-P21P1W0202A

periscope prism


  • Material: BK7, sapphire glass, quartz glass, etc.
  • Dimension: 10-200mm
  • Surface Accuracy: 60-40 or better
  • Size Tolerance: +/-0.1mm or better
  • Angle Tolerance: +/-3’or 30”
  • Coating: Optional


Detailed Description

How does the periscope prism work?

Why is prism a better material to make a periscope than a plane mirror?

Ray path of right angle prism

Specifications of right angle prism 

Detailed Description

VY Optoelectronics Co.,Ltd. can produce all types of glass prism lenses,  the coating or painting may be available by custom orders.

Picture show of periscope prism:

How does the periscope prism work?

A periscope is an optical instrument that uses a system of prisms, lenses or mirrors to reflect images through a tube. Light from a distant object strikes the top mirror and is then reflected at an angle of 90 degrees down the periscope tube. At the bottom of the periscope, the light strikes another mirror and is then reflected into the viewer's eye. This simple periscope uses only flat mirrors as compared to the periscopes used on submarines, which are usually a complex optical system using both lenses and mirrors.

(picture show of periscope)

Why is prism a better material to make a periscope than a plane mirror?

Prisms make use of "total internal reflection" (TIR), an advantage over the losses you'd expect from mirrors. Mirrors only reflect about 95% of that reflected by prisms using appropriate TIR angles. Prisms also avoid the refraction distortion that can result when using a glass fronted, reflective coated mirror.

Ray path of right angle prism



 

Specifications of periscope prism

  • Material: N-BK7
  • Surface quality: 60-40 or better 
  • Dimension tolerance:+/-0.1mm or better 

VY has lots of experience in producing and exporting of the optical prism, with more than 10 years' experience, we have made a wide range of optical prism with variety of materials, shapes, design, etc. Welcome to contact us to get the periscope prism you need.

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