Compact Cube Format
20mm size is practical for teaching kits, bench-top optical paths and small instrument layouts.
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Felix Glass Co., Limited supplies a 20mm K9 optical prism cube for laboratory optical paths, physics education, teaching demonstrations, alignment checks and OEM optical assemblies. This renovated content keeps the original product direction: K9 optical glass, cube prism geometry, AR coating, approximately 92% transmittance and practical lab use.
The prism cube is designed for buyers who need a compact optical block for visible-light experiments, display demonstrations, optical training kits or custom equipment where a clear drawing and application note can guide final specification review.


A 20mm K9 optical prism cube is a small precision glass cube used to demonstrate and control light behavior in lab and education environments. The K9 substrate provides clear visible-light performance, while AR coating helps reduce surface reflection and support stable transmission in simple optical paths.
20mm size is practical for teaching kits, bench-top optical paths and small instrument layouts.
Anti-reflection coating supports clearer transmission and easier observation during experiments.
Suitable for physics education, optical demonstrations, alignment work and prototype review.
The original page information is organized below so US buyers can quickly confirm the product fit before sending an inquiry.
| Product Name | 20mm K9 Optical Prism Cube, AR Coated, Lab Use. |
|---|---|
| Category | Optical Prisms. |
| Brand | Felix Glass Co., Limited. |
| Material | K9 optical glass, with custom substrate review available for related prism projects. |
| Nominal Size | 20mm cube format; custom dimensions can be reviewed from drawings or samples. |
| Coating | AR anti-reflection coating for laboratory and visible-light optical use. |
| Transmittance | Approximately 92% transmittance as referenced in the original product summary. |
| Use Case | Lab optics, physics education, demonstration kits, alignment experiments and OEM optical modules. |
| Service | OEM support available for size, coating, packing, batch quantity and related prism requirements. |
K9 optical glass is commonly selected for educational and general optical components because it balances clarity, processability and practical cost. For prism cube applications, it can support visible-light demonstration, classroom optics, alignment checks and simple optical path training.

Useful for laboratory demonstrations and training setups where students or operators need to observe optical behavior.

Surface quality and edge handling can be reviewed according to the intended optical setup and packing needs.

Related prism sizes, coating bands and packaging requirements can be discussed for OEM or education-kit supply.

Anti-reflection coating helps reduce surface reflection and makes the prism cube easier to use in visible-light demonstration and alignment work. Coating details should be confirmed by wavelength, incident angle, transmission target and handling environment before production.
This prism cube is most useful when buyers need a simple, repeatable optical component for teaching, demonstrations or compact optical assemblies.
Helps demonstrate refraction, reflection, transmission and light-path behavior in classroom or training environments.
Supports bench-top optical demonstrations, alignment checks and small experimental assemblies.
Can be reviewed for education kits, optical accessory sets and product-specific packing requirements.
Useful as a compact reference component in visible-light optical path setup and inspection training.
Confirm size, material, coating, quantity, packing and application environment.
Select K9 optical glass and prepare material according to cube dimensions.
Process cube geometry, edges and optical surfaces for the target use.
Apply coating after wavelength and surface requirements are confirmed.
Inspect appearance, dimensions, surface condition, coating and packing protection.
Before ordering, confirm whether the 20mm cube size, K9 material and AR coating match the optical path. For non-standard experiments or OEM kits, share the drawing, wavelength, quantity, target transmittance and packing method so Felix Glass can review the most practical route.

For procurement teams, the key checks are straightforward: material clarity, cube dimensions, surface appearance, coating condition, transmittance expectation and protective packaging. Clear specifications reduce follow-up time and help repeat orders stay consistent.
Cube size, edge condition and visible appearance are reviewed against the order requirement.
Surface condition and coating appearance are checked for lab and demonstration use.
Individual protection can help prevent edge chips or coating marks during handling and shipment.
Yes. It is a practical size for classroom demonstrations, optical training kits and visible-light experiments.
AR coating reduces surface reflection and supports clearer transmission in simple lab optical paths.
Custom size, coating band, packing and related prism requirements can be reviewed from drawings or samples.
Send size, material, coating requirement, quantity, tolerance needs, packing preference and application notes.
Use these internal pages to compare prism cube needs with related prism, lens and filter options on the Felix Glass site.
Send your cube size, coating target, quantity, tolerance needs and application details. Felix Glass Co., Limited can review the prism cube requirement and provide a practical supply direction.
Send us your drawing, dimension & coating requirements for fast quotation within 24 hours.
Get Free RFQWe supply Industrial Glass, Sapphire Optics, Optical Lenses/Prisms/Filters, Infrared IR Optics, Functional & Display Glass, N-BK7/H-K9L Optical Glass, supporting OEM mass production and laboratory custom prototypes. Flexible MOQ & free sample service available. Fill in the form to download full datasheets and get factory wholesale price within 24 hours.


Felix Glass offers highly flexible MOQ to support client projects, including prototype testing, small batch trial orders and large-volume mass production. All products can be fully customized according to your drawings, tolerances and application standards. Send us your specs to get an accurate price quote within 24 hours.
Yes, our FELIX GLASS factory supports sample testing for a wide range of precision optical glass components and assemblies. The lead time for sample production is 3 to 7 working days. Please contact us today to arrange samples and obtain a customized solution that meets your needs.
What is the production lead time for custom optical glass components?
Answer: The lead time for standard samples is 3–7 business days, while mass production takes 15–25 business days, depending on product complexity and order volume. We provide reliable, rapid delivery for orders serving the industrial, medical, automotive, and aerospace sectors. Please submit your project details to receive an accurate delivery schedule.
All FELIX GLASS precision optical glass components comply with ISO quality system standards, as well as CE and RoHS requirements. We provide comprehensive test reports, material certificates, and inspection documentation for customer review. Please feel free to request full certification details and a formal quotation today.
Yes. We provide a full range of in-house processing services, including CNC machining, precision grinding, optical polishing, vacuum coating (AR, AF, AG, IR), tempering, and screen printing. Every step—from raw material to finished product—is carried out within our own facility. Please let us know your requirements, and we will provide you with the most cost-effective solution.