Factory Custom High-Quality K9 Optical Prisms - Right Angle, Equilateral, Penta, Dove, Corner Cube Prism for Laser & Measuring Instruments OEM ODM
group nameOptical Prisms
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Min Order1 piece
brand nameFELIX GLASS optical glass Manufacturing base
modelK9-PRISM-CUSTOM
payment methodL/C, D/A, D/P, Western Union, T/T
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update timeWed, 15 Jul 2026 10:12:57 GMT
Paramtents
Material H-K9L (N-BK7 Equivalent)
Dimensions 3 mm to 300 mm, Customizable
Surface Quality 60/40 to 20/10 (MIL-PRF-13830B)
Surface Flatness λ/4 to λ/10 @ 632.8 nm
Angle Tolerance ±3' to ±30'' (Standard to Precision)
Coating Uncoated / MgF2 AR / Broadband AR
Prism Types Right Angle, Equilateral, Penta, Dove, Corner Cube, Roof, Custom
Clear Aperture ≥ 90% of Central Dimension
Packging & Delivery
Min Order1 piece
Briefing
Detailed
As a leading manufacturer with over 19 years of precision optics experience, we produce high-performance K9 (H-K9L / N-BK7 equivalent) optical prisms for demanding industrial, scientific, and imaging applications. Our optical prisms are engineered to deliver exceptional light transmission, precise angular accuracy, and outstanding surface quality. Every prism undergoes rigorous quality inspection before shipment. Our optical prisms are manufactured to tight tolerances using premium-grade K9 (H-K9L) optical glass. Below are the standard and precision-grade specifications available. H-K9L (Chinese K9) / N-BK7 equivalent. High-purity borosilicate crown glass with excellent transmission from 350 nm to 2.0 μm. Customizable from 3 mm to 300 mm. Standard right-angle prisms from 5 mm to 100 mm. All dimensions manufactured to drawing specifications. Standard 60/40 scratch-dig per MIL-PRF-13830B. Precision grade available at 40/20 or 20/10 for demanding laser and imaging applications. λ/4 at 632.8 nm standard. Precision λ/10 available. Measured with Zygo interferometer for guaranteed accuracy. Standard ±3 arc minutes. High-precision ±30 arc seconds available. Verified on autocollimator for critical applications. Anti-reflective (AR) MgF2 coating, broadband AR, or custom dielectric coatings. Uncoated also available with R < 4%25 per surface. We produce a comprehensive range of K9 optical prisms to suit diverse optical system requirements. Each type is custom-manufactured to your exact specifications. 90° deviation with hypotenuse reflection. Used in beam steering, periscopes, and image erection systems. Available from 3 mm to 200 mm. 60° equilateral design for light dispersion and wavelength separation. Ideal for spectroscopy, educational demonstrations, and wavelength selection. Constant 90° deviation independent of orientation. Used in surveying instruments, rangefinders, and terrestrial telescopes. High angular accuracy. Retroreflectors and image rotators for laser tracking, alignment, and interferometry. Dove prisms rotate images without deviating the beam path. Our optical prisms are engineered for reliability in demanding optical systems. Each prism is manufactured with precision processes and thorough quality control. Excellent transmittance from 350 nm to 2.0 μm with low absorption, making our optical prisms ideal for UV, visible, and near-IR applications. Low coefficient of thermal expansion (7.1 × 10-6/K) ensures stable optical performance across varying environmental temperatures. Class 1 hydrolytic resistance and climate resistance per ISO 719, ensuring long-term stability of our optical prisms in humid or harsh environments. Bubble class 1 (ISO 10110-3) with extremely low inclusion content. Each batch of optical prisms is inspected under controlled illumination. Apply anti-reflective, high-reflective, or beamsplitter coatings on our optical prisms. In-house coating capability reduces lead time and ensures quality. Every batch of optical prisms ships with a detailed quality inspection report including interferometry data, angle measurement, and surface quality verification. From laboratory research to industrial automation, our optical prisms serve critical functions in diverse optical systems worldwide. Equilateral and Pellin-Broca optical prisms for wavelength dispersion in spectrometers, monochromators, and analytical instruments. High dispersion with excellent throughput. Roof prisms and Porro prisms for image erection in binoculars, telescopes, and digital camera viewfinders. Compact optical prisms with high image fidelity. Right-angle and corner cube optical prisms for beam steering, alignment, and cavity folding in Nd:YAG, diode, and fiber laser systems. High damage threshold coatings available. Precision optical prisms for endoscopes, ophthalmic instruments, flow cytometers, and diagnostic imaging. Biocompatible coating options for medical-grade devices. Penta prisms and retroreflectors in surveying equipment, alignment systems, and automated inspection. Our optical prisms maintain accuracy under vibration and temperature changes. MIL-SPEC qualified optical prisms for periscopes, targeting systems, and avionics HUDs. Radiation-resistant glass variants available for space applications. Every optical prism goes through a carefully controlled manufacturing workflow designed to meet exact specifications. We source premium H-K9L glass blanks from certified Schott and CDGM suppliers. Each blank is inspected for striae, bubbles, and refractive index homogeneity before processing. CNC-controlled grinding and pitch-polishing achieve precise angles and surface flatness. Double-sided polishing for parallel surfaces of our optical prisms ensures consistent quality. Protective bevels prevent edge chipping. Optical coatings are applied using ion-assisted deposition (IAD) for durability. Spectral performance of coated optical prisms is verified on spectrophotometer. 100% inspection including Zygo interferometry, autocollimator angle verification, and visual surface inspection per MIL-PRF-13830B. Optical prisms are packed in cleanroom-grade packaging for safe transit. K9 (H-K9L) is the Chinese standard equivalent of Schott N-BK7. Both are borosilicate crown glasses with nearly identical refractive index (nd ≈ 1.5168 at 587.6 nm) and Abbe number (νd ≈ 64.2). Our optical prisms can be manufactured from either material based on your preference, with H-K9L offering a cost-effective alternative without compromising optical performance. We accept orders starting from 1 piece for prototype and sample evaluation. For production quantities, typical MOQ is 10–50 pieces depending on the complexity of the optical prisms. Contact our sales team with your drawing for a tailored quotation. Yes. We offer single-layer MgF2 AR coatings (R < 1.5%25 per surface), broadband AR coatings (Ravg < 0.5%25 from 400–700 nm or customized spectral ranges), and high-power laser coatings. Coated optical prisms achieve significantly higher throughput in multi-element optical systems. Standard tolerance: Angle ±3 arc min, surface flatness λ/4, surface quality 60/40, dimensional tolerance ±0.1 mm. Precision tolerance: Angle ±30 arc sec, surface flatness λ/10, surface quality 20/10, dimensional tolerance ±0.02 mm. Specify your requirements when inquiring about custom optical prisms. Optical prisms are individually wrapped in lens tissue, placed in anti-static foam-lined boxes, and shipped in double-wall corrugated cartons. We ship worldwide via DHL, FedEx, UPS, or sea freight. Custom packaging and labeling are available for OEM requirements. Partner with a factory-direct manufacturer that delivers precision optical prisms with certified quality, competitive pricing, and responsive technical support. Standard optical prisms ship in 7–15 business days. Rush orders accommodated. CoC, interferometry reports, and spectral curves provided with every shipment of optical prisms. Our optical engineers assist with material selection, coating design, and tolerance analysis. We export optical prisms to 50+ countries with reliable logistics and customs support.High-Quality K9 Optical Prisms — Factory Direct Custom Manufacturing
Technical Specifications of Our K9 Optical Prisms
Material
Dimensions
Surface Quality
Surface Flatness
Angle Tolerance
Coating Options
Types of Optical Prisms We Manufacture
Right Angle Prisms
Equilateral Prisms
Penta & Roof Prisms
Corner Cube & Dove Prisms
Key Features & Advantages of K9 Optical Prisms
Superior Transmission
Thermal Stability
Chemical Durability
Minimal Bubble & Inclusion
Custom Coatings
Full Inspection Report
Applications of K9 Optical Prisms Across Industries
Spectroscopy & Analysis
Imaging & Photography
Laser Systems
Medical & Life Sciences
Industrial Metrology
Aerospace & Defense
Manufacturing Process of Our Optical Prisms
Material Selection & Blank Preparation
CNC Grinding & Precision Polishing
Beveling & Coating Application
Final Inspection & Packaging
Frequently Asked Questions About K9 Optical Prisms
What is the difference between K9 and N-BK7 optical glass for prisms?
What is the minimum order quantity (MOQ) for custom optical prisms?
Can you apply anti-reflective coatings on K9 optical prisms?
What tolerances can you guarantee on optical prisms?
How do you package and ship optical prisms internationally?
Why Choose Our Optical Prisms for Your Project
Fast Turnaround
Full Documentation
Technical Support
Global Shipping
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- Nearest port for product export
- Shenzhen, Guangzhou
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW, FAS, CIP, FCA, CPT, DEQ, DDP, DDU, Express Delivery, DAF, DES
- Acceptable payment methods
- T/T, L/C, D/P D/A, MoneyGram, Credit Card, PayPal, Westem Union, Cash, Escrow