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UV Fused Silica Right Angle Prism

UV Fused Silica Right Angle Prism

Regular price $55.00 USD
Regular price Sale price $55.00 USD
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What is a Right Angle Prism?

A right angle prism is an optical device that can be used to reflect, refract or disperse light. It has two triangular ends joined by three rectangular faces that form a 90-degree angle. This type of optical element is often used in imaging systems and other areas of optics.

The main feature of a right angle prism is that it can deviate a light beam by 90 degrees or 180 degrees, depending on which surface is used as the input for the light source. This is due to the phenomenon of total internal reflection (TIR), which occurs when light hits the glass/air boundary at an angle greater than the critical angle. TIR ensures that the light is reflected with almost no loss of intensity, making prisms an excellent alternative to mirrors.

The function of a right angle prism depends on its orientation and configuration. It can be used as a simple right angle reflector, producing an inverted or reverted left-handed image; as a Porro prism, producing a right-handed image with 180-degree deviation; or as a Dove prism, producing a rotated image with no deviation. 

Right Angle Prism Sideview

Major Specifications of Right Angle Prism

The major specifications of right angle prisms are:

  • Material: The material of the prism determines its refractive index, transmission range, dispersion, and durability. Common materials for right angle prisms include N-BK7, UV fused silica, CaF2, and ZnSe, each with different optical properties and applications.
  • Size: The size of the prism is defined by the length of its legs (L) and the hypotenuse (H). The size affects the clear aperture, which is the usable area of the prism for light transmission or reflection.
  • Surface quality: The surface quality of the prism describes the degree of imperfections on its faces, such as scratches, digs, pits, or bubbles. Surface quality is usually measured by a scratch-dig number, which indicates the maximum width and depth of defects in units of microns. A lower scratch-dig number means a higher surface quality.
  • Surface flatness: The surface flatness of the prism describes how closely its faces conform to an ideal plane. Surface flatness is usually measured by a fraction of a wavelength (λ), which indicates the peak-to-valley deviation from flatness in units of nanometers. A lower fraction means a higher surface flatness.
  • Coating: The coating of the prism refers to any additional layer applied to its faces to enhance or modify its optical performance. Coatings can be either reflective or anti-reflective, depending on the desired function of the prism. Reflective coatings increase the reflectivity of the prism faces, while anti-reflective coatings reduce the reflection losses and increase the transmission.
  • Ray deviation: The ray deviation of the prism describes how much the light beam is bent or turned by the prism. Ray deviation is usually measured by an angle in degrees, which indicates how far the output beam deviates from the input beam. The ray deviation depends on the orientation and configuration of the prism.

Use Cases of Right Angle Prisms

Some use cases and applications for right angle prisms are:

  • Spectroscopy: Right angle prisms can be used to disperse light into its constituent wavelengths by exploiting their different refractive indices for different colors. This can help analyze the spectral composition of light sources or substances.
  • Laser systems: Right angle prisms can be used as corner cubes or retroreflectors for laser systems, reflecting light back to its source regardless of its incidence angle. This can help align or stabilize laser beams or measure distances or velocities.
  • Optical communication: Right angle prisms can be used to redirect light beams in optical communication systems, such as fiber optics or free-space optics. This can help transmit data or signals over long distances or complex routes.
  • Imaging: Right angle prisms can be used to reduce distortion or aberration in imaging applications, such as photography or microscopy. This can help improve image quality or resolution.

The wavelength of light involved in these applications varies depending on the source and detector of light, as well as the material and coating of the prism. For example, UV fused silica prisms are suitable for ultraviolet (UV) to near-infrared (NIR) wavelengths, while ZnSe prisms are suitable for mid-infrared (MIR) to far-infrared (FIR) wavelengths. Similarly, different coatings have different wavelength ranges and reflectivity values for different colors.

Wedge Prism

Some use cases and applications for right angle prisms are:

  • Spectroscopy: Right angle prisms can be used to disperse light into its constituent wavelengths by exploiting their different refractive indices for different colors. This can help analyze the spectral composition of light sources or substances.
  • Laser systems: Right angle prisms can be used as corner cubes or retroreflectors for laser systems, reflecting light back to its source regardless of its incidence angle. This can help align or stabilize laser beams or measure distances or velocities.
  • Optical communication: Right angle prisms can be used to redirect light beams in optical communication systems, such as fiber optics or free-space optics. This can help transmit data or signals over long distances or complex routes.
  • Imaging: Right angle prisms can be used to reduce distortion or aberration in imaging applications, such as photography or microscopy. This can help improve image quality or resolution.

The wavelength of light involved in these applications varies depending on the source and detector of light, as well as the material and coating of the prism. For example, UV fused silica prisms are suitable for ultraviolet (UV) to near-infrared (NIR) wavelengths, while ZnSe prisms are suitable for mid-infrared (MIR) to far-infrared (FIR) wavelengths. Similarly, different coatings have different wavelength ranges and reflectivity values for different colors.

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Variant Variant total Quantity Price Variant total
L= 3 Uncoated
L= 3 Uncoated
$55.00/ea
$0.00
$55.00/ea $0.00
L= 5 Uncoated
L= 5 Uncoated
$58.00/ea
$0.00
$58.00/ea $0.00
L= 10 Uncoated
L= 10 Uncoated
$64.00/ea
$0.00
$64.00/ea $0.00
L= 12.5 Uncoated
L= 12.5 Uncoated
$67.00/ea
$0.00
$67.00/ea $0.00
L= 15 Uncoated
L= 15 Uncoated
$69.00/ea
$0.00
$69.00/ea $0.00
L= 20 Uncoated
L= 20 Uncoated
$71.00/ea
$0.00
$71.00/ea $0.00
L= 25 Uncoated
L= 25 Uncoated
$80.00/ea
$0.00
$80.00/ea $0.00
L= 40 Uncoated
L= 40 Uncoated
$189.00/ea
$0.00
$189.00/ea $0.00
L= 60 Uncoated
L= 60 Uncoated
$365.00/ea
$0.00
$365.00/ea $0.00

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