BK7 h-k9l hemispherical lens Half-Ball Lenses, 1mm-60mm Custom OEM Optical Glass Lenses
- Model
- FG--HB-LENS
Item specifics
- Material:
- High purity H-K9L, BK7 optical glass
- Coating:
- AR / IR / UV / AF
- Size
- Custom diameter range 1mm – 60mmv
- Diameter Range
- Custom Size
- Focal Length:
- Customizable
- Feature:
- High Transmittance, Low Distortion, Scratch Resistant, Custom Coating
- Structure
- Full spherical ball lens, precision ground hemispherical half-ball convex lens
Review
Description
BK7 & H-K9L Precision Ball Lenses and Hemispherical Half-Ball Lenses
As a professional BK7 glass ball lens manufacturer, Felix Glass provides high-precision full spherical ball lenses and hemispherical convex lenses made of premium BK7 and H-K9L optical glass. Custom diameter options cover miniature 1mm components up to 60mm large-format spherical optics, supporting full OEM customization for industrial optical systems.
Hemispherical lenses feature a precision-ground flat surface combined with a polished spherical optical surface, providing efficient light collection and beam shaping. This dual-surface structure delivers stable optical performance for a wide range of coupling, collimation and light-guiding applications.
Core Material Characteristics
1. BK7 Optical Glass
Standard industrial optical glass with excellent visible-spectrum transmittance and stable physical properties. Suitable for general visible-light optical assemblies, conventional sensors, and cost-effective industrial lighting optics.
2. H-K9L Optical Glass
Features high optical uniformity and excellent transmission characteristics for demanding optical applications. Preferred for high-precision fiber coupling, optical communication and sensitive optical sensing modules.
Key Product Features
1. Full-Range Customizable Dimensions
Available in diameters from 1mm ultra-miniature spherical lenses to 60mm large hemispherical optics. Custom edge grinding, edge blackening and multi-layer AR coating can be implemented according to project specifications.
2. Consistent Precision Optical Performance
Precision grinding and polishing support consistent optical performance for light collection, coupling and beam shaping applications. Uniform surface quality minimizes stray light and ensures reliable beam control.
3. Stable Compact Structure
Solid monolithic glass construction provides excellent structural stability, suitable for integration into compact optical assemblies operating under normal industrial conditions.
Typical Application Scenarios
- Optical fiber coupling and optical communication modules
- Laser beam delivery and laser collimation systems
- Industrial barcode scanners and optical encoders
- Infrared photoelectric sensors and precision detection modules
- Medical endoscope light-guiding components
- Instrumentation indicator lighting and miniaturized optical assemblies
OEM Manufacturing Capability
From optical glass blank preparation and precision sphere forming to polishing, coating, edge finishing and final optical inspection, every manufacturing process is completed under controlled quality procedures to help ensure consistent dimensional accuracy and optical performance.
We support prototype sampling, small-batch trial production and large-scale mass orders. All custom spherical and hemispherical lenses undergo strict visual and dimensional inspection to meet standardized industrial optical requirements.
Contact Felix Glass today for free technical consultation, custom optical lens solutions and competitive factory pricing. Our professional team supports your laser, semiconductor, vacuum and optical projects worldwide.
FAQ
1. What are ball lenses and hemispherical lenses used for?
Precision spherical ball lenses and hemispherical half-ball lenses are widely used for light collection, beam shaping, fiber coupling and collimation. Common industrial applications include optical communication modules, laser systems, barcode scanners and sensor optical assemblies.
2. What is the difference between BK7 and H-K9L ball lens material?
BK7 is widely used for general visible-light optical applications with balanced cost and performance. H-K9L offers excellent optical uniformity and stable transmission, commonly selected for higher-precision optical coupling and industrial optical systems.
3. Can you provide custom coating and edge treatment?
Yes. We offer customizable anti-reflection coatings, edge blackening, flat surface fine grinding and dimensional modification to match customer optical drawings and spectral requirements.
4. Are small sample orders supported?
We provide flexible sampling and low-MOQ trial orders for project verification, followed by scalable mass production support.
5. What quality standards do your spherical optics follow?
All lenses are processed and inspected under standardized manufacturing controls, ensuring consistent surface quality, dimensional tolerance and repeatable optical performance for OEM industrial integration.
Video Description
| FELIX GLASS GROUP | |||
| >> HONG KONG FELIX OPTICAL GLASS CO., LIMITED | |||
| Global International Marketing Department, Hong Kong, China | |||
>> DONGGUAN FELIX GLASS MFG CO.,LTD | |||
Manufacturing Base, Dongguan, China | |||
>> HUIZHOU FELIX GLASS MFG CO.,LTD | |||
Manufacturing Base, Huizhou, China | |||
>> SUZHOU FELIX GLASS MFG CO.,LTD | |||
Manufacturing Base, Suzhou, China | |||
>> VIETNAM FELIX GLASS MFG CO.,LTD | |||
Manufacturing Base, Vietnam |
>>Customized Optical Glass with Vacuum Coating, Narrow Band & High Reflection Coated for Precision Optics
.........................................................................................................................................
Optical Glass Optical Lens Optical Prism Solutions
>> FELIX OPTICAL GLASS Features :
These Positive Meniscus Lenses are fabricated from ROHS-compliant BK7 glass (N-BK7) and are avalable uncoated or with one of our three broadband antireflection coatings: -A (350-700 nm),-B (650-1050 nm), or -C (1050-1700 nm). These coatings greatlyreduce the 4% loss per surface incurred when using an uncoated lens. Positive meniscus (convex-concave) lenses are designed to minimize spherical aberration, When used in combination with another lens, a positive meniscus lens will shorten the focal length and increase the numerical aperture (NA) of the system without introducing significant spherical aberration, When used to focus a colimated beam, the convex side of the lens should face thesource to minimze spherical aberration.
we are manufacturer of optical glass lens ,prisms ,spherical lens ,aspherical lens ,cylindrical lens ,optical window
plate,reflective mirror and filter, Wholesale Optical Glass Bk7 K9 AR Coating Diameter 25.4mm Focal Length 200mm Meniscus Lens for Telescopes Eyepieces
We can custom-made optical glass lens and prisms ,spherical lens ,aspherical lens ,achromatic lens ,optical window plate ,optical mirror ,filter and other optical glass product saccording to your detail request,drawing or sample Click on this link to obtain customized product quotes
we can make all kinds of optical glass products according to the drawing that customer supply if you have any needs about the optical glass products ,please free to let me know and we can also give you good price and good service Welcome To Inquiry
>>Optical glass, optical lens, optical prism, application scenarios:
[FELIX GLASS Optical Precision Glass Technology Partner]
>Coated Glass Application Solutions Partner In specialized application
scenarios requiring glass coating treatments, FELIX GLASS offers a comprehensive supply chain system to fulfill diverse project requirements.
>Mirror Glass Achieves reflective effects through surface coatings (Aluminum, Chromium, Indium Tin Oxide [ITO,
non-conductive]) Customizable functionality: light-transmitting, semi-transparent, or one-way light transmission.
>Optical Filters Utilizes multi-layer optical coating technology to selectively enhance or block specific spectral bands. Widely applied in optical devices: narrowband filters, infrared-transmissive filters, and precision optical filters.
Contact us today for tailored solutions engineered to your exact specifications and official price。
| WHY CHOOSE US? | |||
| FELIX GLASS |
| Compare projects | Other suppliers | FELIX GLASS | |
| Rapid Response | No, long quotation time, some need24H or more. | Regular quotation:<30 minutes.Response time:<4h during working hours,<12h during non -working hours. | |
| Communication Process | Mostly from a business backgroundand unprofessional, customers oftenexperience a communication gap | Easy! with experience in multiple projectsable to prevent risks for customers andprovide reference suggestions. | |
Professional Service | Mechanically understand customerdrawings, mechanically apply thecontent of the drawings. | Can understand the meaning behind thedrawings. Will provide professionalprevention and suggestions for customers.Will providerenderings for customer confirmation within12H. | |
Delivery Guarantee | NO | Will actively update the production progressfor customers, on -time delivery rate >98% | |
Fast Delivery Capability | NO | Urgent samples can be delivered in as fastas 48H. | |
Small orderser vice | MOQ 500 or 1000 or more. | Supports small - batch orders with MOQ 100 | |
After-sales Guarantee | Can't find anyone when there is aproblem, or shirk responsibilities. | If confirmed to be our quality problem or notproduced according to the drawing, 24Hrapid refund. | |
| FELIX OPTICAL GLASS Equipment List and Processing Scope | |||
Equipment name | Processing dimensions(mm) | Quantity | |
1 | CNC Cutting machine | 2500*2000 | 102 |
2 | Dual axis CNC (small size) | 350*250 | 97 |
3 | CNC polishing machine | 700*450 | 59 |
4 | Grinding Machine | 1500*800 | 112 |
5 | Optical glass coating machine | 300-200 | 89 |
6 | Ultrasonic cleaning machine | 300-200 | 91 |
7 | Automatic ultrasonic cleaning machine | 300-200 | 117 |
| 8 | Centering edge grinding machine | 800*1500 | 103 |
| 9 | Chemical strengthening furace | 1500*800 | 137 |
10 | Semi automatic printing machine (small size) | 330*200 | 92 |
11 | Semi automatic printing machine (large size) | 1500-800 | 118 |
12 | Optical parameter measuring instrument | 270*180 | 76 |
13 | Baking line | 800*1500 | 121 |
14 | Oven | 800~600
| 122 |
| >>FELIX GLASS is a professional glass deep processing manufacturer with 19 years of experience in optical lenses optical glass/AR/AG/AF display touch glass Glass products, etc. It has supplied more than 1,000 top well-known companies in the world, providing high quality and winning trust! | |||
| ✔ | ROHS CE GPSR FDA certification BSI certified ISO9001:2005 quality management system | ||
✔ | Professional team over 19 years’ experience under Japanese management system | ||
✔ | Help over 1000+ companies to make prototypes into mass production successfully | ||
✔ | Safe stock system of commonly used materials | ||
✔ | Latest instruments and equipment equipped | ||
✔ | Challenge the 100% on time delivery goal | ||
✔ | 100% full inspection report | ||
| ✔ | Cost-down solutions for over 200+ companies with success | ||
✔ | Free solutions provided based on different industries | ||
✔ | Support free samples (quick sample production) | ||
✔ | Small quantity (100-1000pcs) available | ||
| COMPANY EXHIBITION | |||
| FELIX GLASS |
| >>Provide Documents： >You can send us files. hand-drawn graphics, physical reference samples etc. >We support formats such as PDF.DXF.DWG. STEP. AI.CDR.EPS.etc.
>When using a custom font in your design, please create outlines before sending it to us, or provide us with the corresponding font file.
>It is preferable to provide vector files as they are not affected by scaling,making them suitable for printing Bitmap files may become bluny when enlarged. | ||
| | ||
| >>Selecting Appropriate Glass Materials： >Standard Thickness (mm):0.25.0.330.55.07.08.10.1.1.1.2.1.5.18.20.252.8.3.0.38.4.8>Based on Transparency: Clear Glass(affordable). Low lron Glass (transparency>93%).Smoked Glass(suitable for concealed windows) >Based on Surface Hardness: Regular Glass, Medium Alumina Glass. High Alumina Class>Based on Brand Classification: Gorilla Glass, Asahi Glass
Panda & CsG Glass and so on
>Based on Application Scenarios: Ordinary Glass.High-Temperature Glass(such as high borosilicate glass).Optical Glass (e.g.. BK | ||
| | ||
| >>Developing Suitable Techniques-Structures： >Based on Forming Methods: CNC Cutting (high precision)Laser Cutting(capable of cutting right-angle holes).Water jet Cutting (suitable for thick glass).There are advantages and disadvantages of different processing methods. so they are often combined for the best effect. >Class Forming Structures include:Various square,circular, and irregular cuts:drilling: chamfering: counter sinking: blind holes: 2.5D edge bevelling
>Class Surface Treatment: Flat grinding . polishing ultrasonic cleaning | ||
| | ||
| >>Establishing Suitable Techniques-Tempering Process The tempering process significantly enhances the strength of glass and improves its safety performance: >Chemical Tempering:Suitable for glass with a thickness below 2mm,The tempering process of the glass panel is completed by chemical substitution in the high temperature potassium nitrate liquid. >Physical Tempering:Suitable for glass with a thickness above 2mm. This process utilizes high-temperature quenching to achieve tempering. ls results in high impact resistance and enhanced safety of the glass. | ||
| | ||
| >>Developing Suitable Technique!-Printing Patterns: We can print the desired patterns and colors on your glass >Conventional Glass Printing Methods:Screen Printing(excellent and clear printing results), Digital Printing (capable of printing gradient patterns and colorful designs).
>Color Definition for Glass Screen Printing,Reference to physical samples,Pantonecolor codes, RAL colorcodes.
>Class Ink Classification: Regularink.High-temperature resistant ink, UV-resistantink.Light-diffusing ink, Semi-transparent inktransparent infared(IR) ink, | ||
| | ||
| >>Special Techniques andApplications for Glass Panels: >Anti-Fingerprint Coating Applying an anti-fingerprint coating to the glass surface will cause a fingerprint -resistant effect and a contact angle greater than 115 degrees (also known as the lotus effect). | ||
| | ||
| >>Anti-Refective Coating: Applying an optical anti-reflective coating to the glass surface increases its transmittance.Single-side anti-reflective coating achieves 95% transmittance, while double-side achieves 98% transmittance, This is suitable for applications such as cameras. high-definition displays. and more. | ||
| | ||
| >>Anti-Glare Treatment : Anti-glare treatment reduces glare on glass products alleviating eye fatigue for users. lt widely app lys in medical equipment, e-books in-car displays, financial payment devices,outdoor display devices, and more.Glossiness >80: Suitable for indoor use Glossiness 50-70: Suitable for outdoor devices.Glossiness 20-30: Suitable for touch panels(providing a paper-like touch sensation). | ||
| | ||
| >> Mirror Electroplating : Applying aluminum. chromium. indium oxide. nickel.and other materials onto the glass surface creates a mirror effect Applications such as smart mirrors :Aluminum or chromium plating.Metal gloss effects for switch panels and more : indium oxide plating for touch capability, or nickel plating for non-touch applications. | ||
| | ||
| >>Infrared-Transmitting Glass Panels : IR transparent glass are widely used in face recognition, iris recognition, radar, and remote control receiving windows.Available colors : black, red. and others Processing method : silk screen IR ink optical coating Parameters : Visible light transmittance<2%,>90% at 820nm & 940n | ||
| CUSTOMER AND FEEDBACK | |||
| FELIX GLASS |
| BERNAT BONNIN CEO Medical Devices.S.A | ||
Our Company Working with FELIX GLASS was an absolute pleasure! The product quality exceeded my expectations, and the customer service team was incredibly responsive. From order to delivery,everything was seamless. l'm already planning my next purchase-highly recommend to anyone looking for Display glass panel and optical lens! |
>>FAQ-1：
1: Can the AG and AR process be realized on a cover glass ?
A: AG, AR and AF can be realized on the same cover glass, which is called 3A. It is standard for display cover glass.
Q2: What kind of processes can achieve the “dead front effect” of cover glass?
Answer:
A: ①Printing, suitable for small area printing within 20*20mm.
②Electroplating, suitable for small sizes below 7 inches
③The glass material is gray glass, and the maximum size can be 32 inches.
④Film Adhesion, unlimited size
Q3: What is the stress standard after glass chemical strengthening?
A: Corning Gorilla Glass Stress Value: DOL>40um, CS>650Mpa
Soda Lime Glass Stress Value: DOL>8um, CS>450Mpa
Q4: What is the Dead Front Glass?
A: This question has written a lot of introduction, You can search on the FELIX GLASS website and you will find related videos, introductions, and pictures.
“Dead Fronteffect”(All-in-one-black), that is to say, the display is clearly visible when back-lit, and when non-backlit, the entire display including glass is completely black without a color difference. Dead front glass is widely used in smart homes, smart wearables, financials, medicals, and industrial control, etc.
Q5: Will the glass strength be affected after AG etching?
A: Definitely not. Because the etched glass surface is only about 0.05mm depth, and the chemical strengthening is immersion type, which can fully complete the replacement of ions. We have done too many time tests and the results showed that it didn’t affect the strength of the glass.
Q6: For AF（Anti-Fingerprint） coating, how much is the qualified water contact angle?
A: FELIX GLASS Standard Water Contact Angle is >105°, Abrasion Test: 200g weight，Steel Wool#0000, 2000times(back and forth as 1 time)，Recession Value within 15%
Q7: How to recognize the etched side?
A: The easiest way is to hold the AG glass under a fluorescent light and look at the tube reflected on the glass from the front. If the light is scattered on the glass, it is etched side. If the light is clearly visible, it is a non-ag side. This is the most direct way to distinguish from the visual effect.
Q8: How many days to deliver custom cover glass ?
A: Gorilla glass 3, gorilla glass 4, gorilla glass 2320.
Above 90% samples are delivered within 7 days.
For mass production, it’s always 15days
Q9: Specification Of Custom Gorilla Glass
A: The production information of gorilla glass (2320) and 4(5318)are enclosed. Please download for your reference.
Q10: What’s the unit of Haze ?
A: Haze refers to percentage of incident transmission light which deviates more than 2.5°accounts for total incident transmission light, the unit symbol is %. The higher the haze is, the lower the gloss and the resolution is.
Q11: Is it possible to print on the side of AG glass ?
A: No matter it’s single side AG glass or double sided AG glass, both can be silkscreen printed.
Q12: How Does FELIX GLASS Ensure The Glass Quality ?
A: To ensure the quality of custom gorilla glass and anti glare glass.
We will make full inspection after every procedure, IPQC and make spot check before delivery.
ISO9001:2008 quality management system is strictly carried out.
Q13: MOQ ?
A: 100pcs-1000pcs. We will provide you 10pcs samples in prototype stage
Q14: What’s the tolerance ?
A: Dimension: ±0.05mm ( 5”)
Printing: ±0.1mm
16.How many days to deliver custom anti glare glass ?
For custom anti glare glass, single side etching and double side etching.
FELIX GLASS import high quality raw material abroad, the applicable kinds are very wide. The lead time depends on the current stock, please kindly contact sales.
Q15: How Is The Processing Capability ?
A: For custom gorilla glass, gorilla glass 3, gorilla glass 4 and anti glare glass.
FELIX GLASS provide CNC machining,chemical strengthening,multi-color printing, AF coating, AR coating, anti glare etching and double side 3M tape service.
A. CNC machines to process any desired shape. Chamfer / Bevel/Holes etc.
B.Chemical strengthening to make glass stronger and tougher, with best performance of anti-scratch and anti-impact.
C.Multi-color printing technology to print any color on one glass once Pantone number is provided
D.Anti-fingerprint coating to keep surface clear and wipe fingerprints easily
E.Anti-reflective coating to increase the transmittance and reduce reflection of glass
F.Double side 3M tape to assemble the glass with other parts well
Q16: What’s the difference between single side AG glass and double sided AG glass?
A: FELIX GLASS AG glass is immersed etching. Technically speaking, we have to cover another side when we’re etching single side AG glass.
Q17: Will the gloss be varied after assembly.
A: If you bond the glass with other parts fully by optical bonding, the gloss will vary,the gloss of double side AG glass will increase by 10-20. If it’s single side AG glass or bonded half, the gloss varies small.
>>FAQ-2:
Q1: How do I get a quick quote ?
A:You can provide us with detailed pictures, drawings, production process requirements, and quantities as much as possible, and you will receive an accurate free quotation within 2 hours of receiving the information.
Q2: How to increase the success rate of sample production ?
A:When you express your intention to purchase, our engineers will intervene and provide evaluations and suggestions from the perspectives of structure, physical properties, application scenarios, etc. This is exactly what we are best at.
Q3: Can I get the sample?
A: If it is a sample we already have, it will be free. If it is customized according to your drawings, we will charge a cost fee.
Q4:How long is your delivery time?
A:Sample is 3-10days.Mass products are 5-12days by air,or 5-30 days by sea.
Q5:What’s the payment term?
A: T/T , Paypal L/C,...
Q6: I need to get a quote faster?
A: If you are very urgent to get the quotation, please call us or tell us in your email so that we will give priority to Your enquiry.
