Custom Triangular Prisms

Triangular prisms are precision optical components with a triangular cross-section. They are widely used to refract, deviate, disperse or redirect light in optical systems. Depending on the prism angle, material and coating, triangular prisms can be used for beam deviation, spectral dispersion, wavelength separation, teaching experiments, laser systems and optical instruments.

Realpoo Optics manufactures custom triangular prisms according to customer drawings, samples and optical design requirements. We support different optical materials, prism angles, surface accuracy levels, surface quality grades and coating options for OEM optical applications.

What Is a Triangular Prism?

A triangular prism is an optical prism with three rectangular side surfaces and two triangular end faces. When light enters the prism, it is refracted at the optical surfaces. Different wavelengths can be bent by different amounts, making triangular prisms useful for light dispersion and spectral separation.

Triangular prisms can also be designed for simple beam deviation, optical experiments, imaging systems and custom light path control.

Key Features

• Triangular cross-section for light refraction and deviation
• Suitable for dispersion and wavelength separation
• Custom apex angle available
• Available in BK7, fused silica and other optical glass materials
• AR coating or reflective coating available
• Custom size, angle tolerance and surface accuracy available
• Suitable for optical experiments, spectroscopy and OEM systems

Applications

Triangular prisms are widely used in:

• Light dispersion
• Spectroscopy systems
• Optical experiments
• Laser beam deviation
• Imaging systems
• Teaching and laboratory equipment
• Optical analysis instruments
• Scientific research systems
• Custom optical assemblies
• Wavelength separation applications

Material Options

Realpoo Optics can manufacture triangular prisms from different optical materials according to wavelength range, transmission requirement and application environment.

Common materials include:

• N-BK7
• H-K9L
• Fused Silica
• Sapphire
• CaF2
• BaF2
• Other optical glass materials upon request

BK7 and H-K9L are commonly used for visible light applications. Fused silica is suitable for UV, high-power laser and applications requiring better thermal stability. CaF2 and BaF2 can be selected for special ultraviolet or infrared transmission requirements.

Technical Specifications

Coating Options

Triangular prisms can be supplied uncoated or coated according to optical requirements. For transmission applications, AR coating can reduce reflection loss and improve optical efficiency. For special beam steering or reflection applications, reflective coating can be applied to selected surfaces.

Available coating options include:

• MgF2 coating
• UV AR coating
• VIS AR coating
• NIR AR coating
• Broadband AR coating
• High reflective coating
• Aluminum coating
• Silver coating
• Gold coating
• Custom laser wavelength coating
• Blackened edge treatment

Triangular Prism for Light Dispersion

One of the most common uses of a triangular prism is light dispersion. When white light passes through the prism, different wavelengths are refracted by different angles. This allows the prism to separate white light into different colors or wavelengths.

This function makes triangular prisms suitable for spectroscopy, wavelength analysis, optical demonstrations and laboratory optical systems.

Triangular Prism for Beam Deviation

Triangular prisms can also be used to change the direction of a light beam. By selecting the correct prism angle, material and orientation, the prism can provide controlled beam deviation in an optical system.

For laser applications, coating, surface accuracy and angle tolerance are important factors that affect beam quality and alignment stability.

Custom Manufacturing Capability

Realpoo Optics supports custom triangular prism manufacturing for optical instrument manufacturers, laser system suppliers, research laboratories and OEM optical assemblies.

Our custom capabilities include:

• Custom prism size
• Custom apex angle
• Custom optical material
• Custom surface quality
• Custom surface accuracy
• Custom angle tolerance
• Custom AR coating
• Custom reflective coating
• Custom chamfer and edge treatment
• Prototype and batch production

Quality Control

Each triangular prism can be inspected according to customer requirements. Inspection items may include dimension, angle tolerance, surface quality, surface accuracy, coating performance, clear aperture and appearance quality.

For dispersion and spectroscopy applications, material selection, prism angle accuracy and optical surface quality are especially important.

Related Optical Prisms

• Equilateral Prisms
• Dispersion Prisms
• Littrow Prisms
• Right Angle Prisms
• Wedge Prisms
• Custom Optical Prisms

Information Needed for Quotation

To provide an accurate quotation, please send us the following information:

• Prism drawing or sample photo
• Material requirement
• Prism size
• Apex angle
• Surface quality
• Surface accuracy
• Angle tolerance
• Coating requirement
• Working wavelength range
• Quantity
• Application details

Request a Custom Triangular Prism Quote

If you need custom triangular prisms for dispersion, beam deviation, spectroscopy, optical experiments or OEM optical systems, please send us your drawing and technical specifications. Realpoo Optics can provide precision triangular prism manufacturing solutions for your optical application.