optical components & lens supplier
Email
Search
close
Choose Your Site
Global
Social Media

Custom Optical Prisms Engineered for Precise Beam Control

Precision Prism Geometries Manufactured to Customer Drawings

Band Optics manufactures custom optical prisms for changing beam direction, rotating or erecting images, separating wavelengths, splitting polarization and shaping illumination. Components can be produced from customer drawings with the prism geometry, material, face angles, datums, clear apertures, surface quality, flatness, coating surfaces and inspection method reviewed as one controlled specification.

Our prism portfolio includes right-angle, penta, Dove, roof, dispersion, rhomboid, wedge, anamorphic and Powell prisms, corner-cube retroreflectors, homogenizing rods and laser polarizing beamsplitter prisms. Prototype and repeat OEM projects can include precision grinding, polishing, CNC edge processing, coating and dimensional, interferometric, angular and spectral inspection according to the approved drawing.

Optical Component Manufacturing Since 2008

3,500 m² Optical Production Workshop

Lapping, Polishing, Coating and Metrology Capabilities

Prototype and Repeat OEM Production Support

Prism Engineering and Production Support for OEM Optical Systems

Paragraph 1: An optical prism is defined not only by its outline, but by the relationship between multiple polished faces. Face angles, datum selection, refractive index, coating orientation and clear aperture determine where a beam exits, how an image is transformed and whether internal reflection, dispersion or polarization control performs as intended.


Band Optics supports made-to-print prism projects for imaging, laser, sensing, analytical and communication systems. Engineering review connects the optical function with manufacturable angles, face sizes, edge geometry, mounting references and an inspection plan that can be repeated in production.


Prism manufacturing combines controlled blank preparation, fine grinding, polishing, angle correction, edge processing, coating and metrology. Right-angle and penta prisms emphasize beam deviation and face relationships; Dove and roof prisms emphasize image orientation; dispersion and Powell prisms depend on material and geometry; beamsplitting and polarizing prisms add coating and polarization requirements.

yg3

Choose the Right Prism Geometry for Your Optical Path

Select a prism type according to the required beam deviation, image transformation, spectral separation, polarization behavior and mounting envelope. Each type can be customized by material, dimensions, face angles, clear apertures, edge features and coating assignment.

Where Precision Prisms Control Beams, Images and Illumination

Prism selection begins with the optical function and the allowed beam or image error, then adds wavelength, aperture, polarization, mechanical envelope and environmental requirements. The same prism geometry can require different tolerances and coatings in different systems.
04-applications-01-precision-imaging-systems Right-angle, Dove, roof and penta prisms fold optical paths, rotate images or support compact camera and inspection layouts while maintaining defined image orientation and transmitted wavefront.

Imaging and Machine Vision

04-applications-03-laser-focusing-beam-delivery Precision prism faces redirect or translate laser beams. Wavelength, polarization, coating, ghost reflections, wavefront and damage-test conditions must be defined for the actual laser.

Laser Beam Steering and Delivery

Aspheres & Freeforms1 Dispersion prisms separate wavelengths, while beamsplitting prisms distribute optical paths to detectors or reference channels. Material dispersion and spectral coating data are central to design review.

Spectroscopy and Analytical Instruments

04-applications-03-fiber-coupling Laser polarizing beamsplitter prisms and 1550 nm-compatible materials can support communication and polarization-control architectures when the coated interface, polarization state and acceptance method are specified.

Polarization and Communication Optics

04-applications-06-aerospace-remote-sensing Corner cubes, penta prisms and related geometries support alignment and return-path functions. Angular acceptance, beam deviation and mounting datum requirements should be supplied by the customer.

Surveying, Alignment and Retroreflection

04-applications-04-beam-shaping-illumination Protective windows separate sensitive optics from dust, particles, cleaning exposure or mechanical contact. The design must connect optical requirements with thickness, mounting stress and edge protection.

Illumination and Beam Shaping

Multi-Face Polishing and Angular Control Capabilities

Prism manufacturing is planned around the number and orientation of optical faces, the required angle relationships, material behavior, component scale and inspection access. Miniature prisms, large prisms, roof edges, coated interfaces and high-index materials require different fixtures and process controls.
Optical Windows2

Multi-Face Grinding and Polishing

Successive faces are generated and polished while preserving reference surfaces, thickness, clear aperture and the geometry required for later angle correction.

Precision Angle Control

Face relationships are adjusted through controlled material removal and repeated measurement against the drawing-defined datum scheme.

CNC Shaping and Edge Processing

CNC grinding, polishing and milling capabilities support custom outlines, flats, chamfers, mounting features and repeatable mechanical references where compatible with the material.

Roof Edge and Small-Feature Processing

Roof prisms and compact geometries require dedicated handling of edge intersection, exclusion zones and inspection access; achievable edge condition is reviewed per drawing.

Coating Surface Coordination

Entrance, exit, reflective and beamsplitting faces are mapped before coating so spectral function, masking, orientation and clear aperture remain traceable.

Miniature and Large-Format Prism Handling

The company prism page states a broad size span, but fixturing, aspect ratio, material, face count and tolerance determine the achievable project envelope.

Prototype and Repeat Production

Prototype runs establish process sequence, fixtures and inspection methods that can be transferred to pilot and recurring OEM production after approval.
Custom1

Specify Prism Geometry, Angles and Optical Performance

The table below presents Band Optics manufacturing and customization capabilities for Optical Prisms. Values are capability references for customer-facing evaluation, not a list of fields the customer must complete.
BAND OPTICS TECHNICAL CAPABILITIES
Capability Item Band Optics Manufacturing Range Capability Item Band Optics Manufacturing Range
Prism Types Right-angle, penta, Dove, roof, dispersion, beamsplitting, corner-cube, Powell, rhomboid, wedge and anamorphic prisms Surface Power / Flatness Per-face power or flatness control in PV, RMS or fringes
Size Range Approximately 0.5 × 0.5 mm to 300 × 200 mm Surface Irregularity Residual irregularity controlled separately where required
Materials MgF2, N-BK7, N-SF11, N-SF6, N-LASF9, Corning 7980 and other reviewed optical materials Wavefront Capability Transmitted or reflected wavefront control through the intended optical path
Geometry Capability Custom dimensions, face maps, apex, dihedral and roof angles, entrance/exit orientation and datum schemes Surface Quality Scratch-dig or ISO 10110 notation by functional face
Linear Dimensions Custom length, width, height, thickness and offsets Clear Aperture Custom dimensional or percentage aperture by face
Angular Control Face, apex, dihedral and roof-angle control Coating Capability Uncoated/TIR, AR, HR, BS, NPBS, polarizing, V-coating and selected dichroic functions
Beam Deviation Functional beam-deviation control at the specified wavelength and orientation Inspection Capability Dimensions, face angles, beam deviation, interferometry, wavefront and coating curves
Pyramidal / Dihedral Error Control available for penta, roof, corner-cube and multi-axis prisms Production Support Prototype, pilot and repeat OEM production
CAPABILITY NOTE:

Available combinations depend on material, geometry, dimensions, precision, coating and inspection requirements. Final specifications are confirmed through engineering review.

Selecting Prism Materials by Wavelength and Optical Function

Prism material affects refractive index, dispersion, transmission, internal-reflection behavior, thermal response, density, polishability and coating compatibility. Selection should reflect the complete optical function rather than wavelength range alone.

06-materials-01-optical-glass

N-BK7 and Related Optical Glasses

Common optical glasses support many visible and near-infrared steering and imaging prisms, with grade and homogeneity selected according to transmitted performance and size.

06-materials-02-fused-silica

Fused Silica and Corning 7980

Fused silica materials can support ultraviolet, visible, near-infrared and laser applications where low thermal expansion and optical homogeneity are important. Corning 7980 is specifically listed in the handbook's 1550 nm category.

06-materials-03-crown-flint-glass-combination

High-Index Glasses

N-SF11, N-SF6 and N-LASF9 are listed for the handbook's 1550 nm lenses-and-prisms program. Their refractive index and dispersion can support compact deviation or dispersion designs, subject to material and coating review.

06-materials-05-magnesium-fluoride

Magnesium Fluoride

MgF2 is listed in the 1550 nm prism-related material set and may support selected ultraviolet or infrared requirements. Crystal orientation, geometry, finish and coating compatibility require project review.

06-materials-05-application-specific-materials

Application-Specific Materials

Other optical, crystalline or infrared materials should be evaluated only against the actual prism geometry, wavelength, size, environmental exposure and achievable surface finish.

Match Each Prism Face with the Right Optical Coating

A prism coating plan must identify the function of every optical face. Entrance and exit faces may need AR treatment; internal or external reflective faces may use total internal reflection, metallic or dielectric reflection depending on geometry and wavelength; beamsplitting interfaces require defined R/T and polarization behavior.

  • Anti-Reflective Coatings
    Single-band, broadband or application-specific AR coatings reduce Fresnel losses across designated entrance and exit faces. Specify substrate, wavelength, AOI and polarization.
  • High-Reflective Coatings
    HR or reflective coatings can be evaluated when total internal reflection is unavailable or when the prism architecture requires a coated reflective face.
  • Beamsplitter and NPBS Coatings
    BS and non-polarizing beamsplitter coatings divide optical power at a defined interface. Supply target reflection and transmission, bandwidth, AOI, polarization range and permitted absorption.
  • Polarizing Beamsplitter Coatings
    Laser polarizing prism designs require separate acceptance criteria for s and p polarization, coated-interface orientation and extinction or leakage metrics agreed with engineering.
  • Laser V-Coatings
    V-coatings can target low reflection near a specified laser wavelength. The handbook contains 1550 nm-related coating examples whose exact surface and coating-system mapping must be confirmed before publication.
  • Dichroic and Spectral Coatings
    Longpass, shortpass, multiband dichroic, cold-mirror or hot-mirror functions can be considered on compatible prism faces when the spectral transition, AOI and environmental conditions are defined.

How Custom Prisms Move from Drawing to Production

The manufacturing sequence is released after the drawing, material, face map, tolerance hierarchy, coating plan and inspection configuration have been reviewed. The order varies with prism geometry, material, size and whether roof, beamsplitting or coated reflective faces are present.

01

Drawing, Beam-Path and Datum Review

Engineering confirms prism function, material, face IDs, angles, datums, apertures, coating assignment and acceptance criteria.

02

Material and Blank Preparation

The approved substrate is cut or prepared with allowance for face generation, edge processing and handling.

03

Reference Face Generation

Initial faces are ground and polished to establish stable process references for subsequent angle relationships.

04

Multi-Face Grinding and Polishing

Remaining optical faces are generated in a controlled sequence while managing thickness, surface condition and clear aperture.

05

Intermediate Angle and Surface Measurement

Face angles, dimensions and flatness or irregularity are measured so correction can occur before final edges and coatings.

06

Roof, Edge and CNC Feature Processing

Roof intersections, chamfers, flats and other mechanical features are completed according to defined exclusion zones and datums.

07

Cleaning, Masking and Coating

Qualified prisms are cleaned and coated on the assigned entrance, exit, reflective or beamsplitting faces with orientation controlled.

08

Final Optical and Dimensional Inspection

Geometry, angles, surface quality, wavefront or beam behavior and coating performance are verified using the agreed methods before release.

Verifying Prism Angles, Surfaces and Beam Performance

Prism inspection is planned around drawing-controlled face relationships and functional outputs. Dimensional, surface, angular, wavefront and spectral results are reported against their own acceptance definitions rather than reduced to one generic quality grade.
Manufacturing Process1

Dimensional and Datum Inspection

Face lengths, component height, thickness, chamfers, flats and mounting features are checked relative to the approved datum scheme.
 
 
Aspheres & Freeforms2

Interferometric Surface Testing

Individual polished faces can be evaluated for power, flatness or irregularity using an agreed reference, wavelength, aperture and support condition.
 
Manufacturing Process4

Angular and Beam-Deviation Measurement

Prism angles or output beam direction are measured with a prism-appropriate setup such as angular metrology or autocollimation, following the drawing definition.
Manufacturing Process2

Pyramidal, Dihedral and Roof Verification

Multi-axis face relationships are inspected where relevant to corner cubes, roof prisms and image-erecting geometries.
 
Manufacturing Process3

Transmitted or Reflected Wavefront

Functional wavefront can be evaluated through the defined beam path when wavelength, aperture, polarization and reference configuration are supplied.
 
Manufacturing Process5

Surface Quality and Edge Inspection

Scratches, digs, coating defects, chips, roof-edge condition and contamination are assessed within the defined clear aperture and exclusion zones.
 
Process6

Spectral and Polarization Verification

Cary 7000 spectral measurement or other agreed methods can support coating verification; beamsplitting and polarizing acceptance requires the specified AOI and polarization states.
Manufacturing Process7

Inspection Documentation

Dimensional results, interferograms, angle or beam-deviation data and coating curves can be included according to the agreed sampling and reporting plan.

Why OEM Teams Work with Band Optics on Prism Projects

Band Optics has manufactured lenses, prisms and flat optics since its 2008 founding and supports custom prism projects from drawing review through grinding, polishing, CNC feature processing, coating, inspection and repeat OEM production. The value is in coordinating multiple face relationships with a measurable optical function.

Broad Prism Portfolio

The current website lists anamorphic, corner-cube, dispersion, Dove, homogenizing, laser polarizing beamsplitter, penta, Powell, rhomboid, right-angle, roof and wedge prism families.
 

Manufacturing from Customer Drawings

Face geometry, datums, materials, coatings, edge features and inspection requirements are processed according to the approved specification.
 
 

Integrated Grinding, Polishing and CNC Processes

Internal capabilities include double-sided lapping, high-speed polishing, MRF, CNC grinding and polishing, horizontal milling and five-axis milling, applied according to project needs.

Coating and Metrology Coordination

AR, HR, BS, NPBS and spectral coatings can be coordinated with dimensional, interferometric, angular and spectral inspection requirements.

Prototype and Repeat Production

Prototype builds establish fixtures, correction steps and inspection methods that can support pilot and recurring OEM orders after approval.

Build a Complete Optical Path with Related Components

Custom prisms can be supplied alongside other made-to-print optics used in the same imaging, laser, sensing or analytical path. Coordinating wavelength, coating, aperture, beam path and mechanical datums across related components can simplify system integration.
10-related-components-01-custom-optical-lenses

Custom Optical Lenses

Spherical, cylindrical and achromatic lenses focus, collimate or relay light before or after the prism-controlled beam path.
10-related-components-01-aspheres-freeforms

Aspheres & Freeforms

Aspheric and freeform surfaces provide aberration correction and beam shaping where prism steering or folding must fit within a compact system.
10-related-components-02-optical-windows

Optical Windows

Flat, wedged, protective and infrared windows isolate the optical path while controlling reflection, wavefront and environmental exposure.
10-related-components-05-optical-filters

Optical Filters

Bandpass, longpass, shortpass, notch and neutral-density filters control the spectrum or intensity sent through prism-based channels.
10-related-components-04-optical-mirrors

Optical Mirrors

Metallic and dielectric mirrors provide additional folding, focusing or spectral reflection where a prism-only architecture is not suitable.
10-related-components-07-optical-assemblies

Special-Shaped Optics and Assemblies

Prism-plus-lens combinations, apertured or stepped optics and mounted modules can be evaluated when the interfaces and functional tests are defined.

Frequently Asked Questions About Custom Optical Prisms

Submit Your Optical Prism Requirements

Tell us what optical prisms you need and how we can contact you. 

INFORMATION TO INCLUDE:

Prism type, material, dimensions, face identification, angle tolerances, beam deviation, wavelength, clear aperture, surface quality, coating, quantity and drawing availability.

If a drawing, prescription or test requirement is available, mention it in the requirements. Band Optics will follow up by email to obtain the file and confirm manufacturability.

Submit Your Custom Optical Lens Requirements

Tell us what custom optical lenses you need and how we can contact you. 

INFORMATION TO INCLUDE:

lens type, material, diameter or outline, center and edge thickness, radius or focal length, wavelength, surface tolerances, centration, coating, quantity and drawing availability.
 
If a drawing, prescription or test requirement is available, mention it in the requirements. Band Optics will follow up by email to obtain the file and confirm manufacturability.
Get A Free Custom Quote
We have a highly skilled team that continues to design innovative new products as well as create cost-effective solutions to meet specifications, timelines and budgets.
CONTACT INFO
Tel: +86-159-5177-5819
Address: Industrial Park, No. 52 Tianyuan East Ave. Nanjing City, 211100, China

QUICK LINKS

PRODUCT CATEGORY

Subscribe to our newsletter
Promotions, new products and sales. Directly to your inbox.
Copyright © 2025 Band Optics Co., Ltd.All Rights Reserved ｜ Sitemap  |   Privacy Policy