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Optical Ball Lens & Hemispherical Half‑Ball Lens

Optical Ball Lens & Hemispherical Half‑Ball Lens

group nameCustom Special Optical Lenses
Min Order1 piece
brand nameFELIX GLASS optical glass Manufacturing base
modelFG-CSOC-OBL020
payment methodL/C, D/A, D/P, Western Union, T/T
update timeThu, 20 Aug 2026 20:24:19 GMT

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Paramtents

Product Type Full Ball Lens / Standard Half‑Ball Lens / Flange‑Step Half‑Ball Lens
Available Diameter 0.5 mm ~ 80 mm, custom drawing supported
Material BK7/BK9 Optical Glass, Fused Silica, Sapphire
Surface Quality 40‑20, 20‑10, 10‑5
Spherical Surface Figure λ/4, λ/8, λ/10 @632.8 nm
Flat Surface Figure(Half‑Ball) λ/4 @632.8 nm
Coating Uncoated / Custom AR Anti‑Reflection Coating
Application Fiber Coupling,LiDAR,Endoscope,Optical Sensor,Machine Vision
Brand Hong Kong Felix Optical Glass Co., Limited

Packging & Delivery

Min Order1 piece

Briefing

High‑precision ball & half‑ball lenses. BK7,fused silica,sapphire,0.5‑80mm,AR coating. For fiber optics,LiDAR,sensors,endoscope.

Detailed

Hong Kong Felix Optical Glass Co., Limited · Model FG‑CSOC‑OBL020

1. Custom Optical Ball & Half‑Ball Lens Overview

Hong Kong Felix Optical Glass manufactures high‑precision optical ball lenses and hemispherical half‑ball lenses with BK7/H‑K9L, fused silica, sapphire substrates for fiber coupling, LiDAR, endoscope, sensor collimation and industrial optical systems.

We provide drawing‑based custom service including spherical radius customization, flange integrated structure, CNC grinding, high‑precision polishing, edge chamfering and multi‑layer AR / BBAR anti‑reflection coating to satisfy UV‑Vis‑NIR spectrum requirements.

This product belongs to Custom Special Optical Lenses, optimized for optical engineer search intent for fiber‑optic collimating components.

All parameters shown are typical reference values. Final dimension, material, coating and tolerance shall be confirmed by official engineering drawings and project specifications.

Custom BK7 fused silica sapphire optical ball lens and half‑ball lens for fiber coupling LiDAR — Precision ball lens and hemispherical half‑ball lens for fiber coupling, LiDAR and medical endoscope optical assemblies.

Material & optical advantages

2. Core Advantages of Ball & Half‑Ball Lenses

Our ball‑lens series solves key engineering challenges: high‑efficiency light coupling, beam collimation, low loss transmission, scratch resistance and thermal stability for fiber optics, sensing and laser systems.

2.1 Excellent beam coupling performance

Ideal spherical surface achieves high‑efficiency light coupling between optical fiber and optoelectronic devices, greatly reduces insertion loss.

2.2 Multi‑substrate broadband transmission

BK7, fused silica, sapphire cover UV, visible and near‑infrared bands, adapt to laser, fiber communication and sensing requirements.

2.3 Outstanding mechanical & thermal stability

Sapphire option provides high hardness and thermal shock resistance, suitable for high‑temperature, vibration and harsh industrial working conditions.

Explore more optical parts in Felix Glass product catalog.

Flanged half‑ball hemispherical lens for fiber collimation assembly — Custom flanged half‑ball lens with positioning step for easy mechanical installation and alignment.

Typical application scenarios

3. Main Application Fields for Ball & Half‑Ball Lenses

Ball lenses and hemispherical half‑ball lenses are widely adopted where high‑efficiency light coupling and collimation are required. Select substrate and structure based on spectrum, temperature and assembly constraints.

Fiber‑optic coupling: BK7 / fused silica ball lenses for low‑loss fiber‑to‑fiber and fiber‑to‑device coupling.
LiDAR & optical sensing: High‑precision half‑ball lenses for beam collimation and receiving optics.
Medical endoscope: Small‑diameter sapphire half‑ball lenses for miniature imaging probe assemblies.
Industrial laser & sensors: UV‑NIR transmission substrates for laser collimating and detecting modules.

Focus length, numerical aperture and coupling efficiency are determined by diameter, refractive index and surface quality. Submit drawing for optical simulation review.

Drawing‑driven precision manufacturing

4. Custom CNC Machining & Polishing Capability

Hong Kong Felix Optical Glass accepts customer CAD drawings for custom ball lens and half‑ball lens production, including solid ball, hemispherical, flanged integrated structure, customized diameter, spherical radius and positioning step.

Spherical surface machining

Precision grinding and polishing for ball / half‑ball, tightly control spherical radius, diameter and surface figure error.

Edge & flange processing

Flat edge, chamfer, installation flange and positioning step for mechanical assembly and alignment.

Anti‑reflection coating

Single‑band AR, broadband BBAR coating to reduce surface reflection, improve transmittance and lower coupling loss.

Tolerance & surface quality control

Strict diameter tolerance, surface quality up to 20‑10 MIL‑PRF‑13830, specification negotiable for project requirements.

View our manufacturing strength on About Us.

Material selection guide

5. Substrate Optical Performance Comparison

BK7/H‑K9L, fused silica and sapphire are mainstream substrates for ball and half‑ball lenses, with different transmission bands, hardness and thermal‑mechanical performance.

Every finished lens goes through dimensional inspection, surface defect inspection and spectral transmittance testing before delivery. Customers can specify target wavelength and acceptance criteria according to optical design.

Find more design suggestions in our technical blog.

BK7 fused silica sapphire ball lens material comparison — Three mainstream substrate options for ball‑lens components, matched to working wavelength and environment.

Material Selection Guide

6. Customizable Specification Parameters

Below lists common custom options. Our engineers will evaluate manufacturability after receiving your CAD drawings.

Specification item	Available options	Project confirmation factor
Substrate Material	BK7/H‑K9L, Fused Silica, Single Crystal Sapphire	Working wavelength, operating temperature, mechanical requirement, cost budget
Lens Type	Solid Ball Lens, Hemispherical Half‑Ball Lens, Flanged Half‑Ball Lens	Coupling design, installation space, assembly structure
Dimension	Custom diameter, spherical radius, flange thickness, step dimension	Numerical aperture, focus requirement, mechanical constraint
Optical Coating	Single‑band AR, Broadband BBAR anti‑reflection coating	Target wavelength range, transmittance target, return loss requirement
Surface Quality	40‑20, 20‑10 MIL‑PRF‑13830	System noise threshold, laser power level
Edge / Flange Treatment	Plain edge, chamfer, integrated flange, positioning step	Housing assembly, alignment and locking structure

Sample & mass‑production lead‑time

7. Production Cycle for Prototypes & Volume Orders

After drawing review, substrate and coating scheme confirmed, lead‑time reference as follows:

1
Prototype samples: 10‑14 working days
For optical performance, coupling test and mechanical assembly verification.
2
Pilot small‑batch: 14‑20 working days
Process validation before formal mass production.
3
Mass production orders: 22‑32 working days
Actual delivery depends on order quantity, blank stock and coating schedule.

Anti‑shock foam separated packaging with export‑grade moisture‑proof carton, suitable for air freight and sea shipment.

Ball lens half‑ball lens finished parts factory inspection — Delivery schedule finalized after drawing, coating and inspection standard are fully confirmed.

Technical FAQ

8. Ball & Half‑Ball Lens Frequently Asked Questions

Below are typical performance descriptions. Real indicators must match project drawings and test specification.

Which substrate for fiber coupling ball lens?

BK7 or fused silica are most common for visible & near‑IR fiber coupling. Fused silica is preferred for UV application. Send your wavelength requirement for material suggestion.

Can flanged half‑ball lens be custom‑made?

Yes, we process integrated flange and positioning‑step half‑ball lens. Please provide CAD drawing including flange dimension and tolerance requirement.

Can you provide spectral transmittance test report?

Yes, spectral test reports can be supplied for batch production according customer requirement for equipment qualification review.

What surface quality do you support for laser application?

We can achieve 20‑10 MIL‑PRF‑13830 for high‑power laser use to minimize scattering and laser‑induced damage risk.

What is your minimum & maximum processing diameter?

Covers small micro‑size for medical probe up to large‑diameter ball lens. Send drawing for feasibility assessment.

Can you support long‑term OEM mass supply?

Hong Kong Felix Optical Glass owns full in‑house grinding, polishing and coating capacity, supporting prototype, pilot run and long‑term mass supply for optical equipment manufacturers.

RFQ preparation checklist

Submit Your Drawing for Custom Ball‑Lens Quotation

Please provide CAD drawing, substrate selection, dimension, working wavelength, coating requirement, surface‑quality grade and estimated quantity. Our optical engineers will review manufacturability and reply sample & mass‑production quotation quickly.

Submit project requirements