Manufacturer of optical components: pressed and polished lenses, prisms, filters, plastic optics, coatings and assemblies
B&M Optik GmbH
Limburg an der Lahn (DE) · Pirna (DE) · Zaczernie (PL) · Stonebroom, Alfreton (GB)New on Amplifa
About B&M Optik
B&M Optik GmbH, founded in 1991, is a family-owned mid-sized company based in Limburg an der Lahn and a manufacturer of optical components and parts. Its product range extends from blank-pressed condenser optics to high-precision ground and polished quality optics with diameters from 3 to 300 mm – from one-off parts to unlimited series. Manufactured items include aspheres, spherical lenses, cylindrical lenses, freeform lenses, arrays, prisms, beam splitters, wedges, discs, laser protection glasses, color and interference filters, as well as injection-molded plastic lenses. At the Pirna plant, AR coatings, mirror and dielectric layers, and contract coating services are performed on four coating systems; in addition, optomechanical assemblies are mounted. The group produces at four European locations with a total of around 140 employees: headquarters in Limburg (development, quality assurance, central warehouse), the Planoptik plant in Pirna, the Rundoptik plant in Zaczernie (Poland), and Bluebell Industries Ltd. in Stonebroom (UK) for pressed optics. Customer industries include lighting/LED, analytics and medical technology, sensor technology, automation, optical metrology, laser technology, machine vision, as well as automotive and aircraft engineering.
- Site
- Limburg an der Lahn
- Processes
- Blank pressing of lenses (pressed optics), Grinding and polishing of lenses (CNC manufacturing process), Production of prisms and flat optics (grinding and polishing), Plastic injection molding (plastic lenses), Coating/mirroring (AR coatings, metallic mirror and partial mirror layers,, Production of optical filters (glass color filters, heat absorption filters, heat reflection, Assembly of optomechanical assemblies (objectives, eyepieces, mounts,, Optical design, product development, sample production, prototypes, pilot series, small and large
- Materials
- LIBA2000+, F2, F4GT, K10P, Tritan, Simax, Colored glasses, optical glasses (all)
- Certificates
- DIN EN ISO 9001:2015, ISO 9001:2015, ISO 9001:2015 / ISO 14001:2015, ISO 9001, ISO 14001, RoHS / REACH
- Founded
- 1991
- Employees
- 140
- Industries
- Lighting, LED light, Analytics & medical technology, Sensor technology, sensor systems, Automation, control technology, Optical metrology, measuring instruments, Laser technology, laser protection
- 01
Optical design and project management
- 02
Sample production and prototypes
- 03
Blank pressing of optics (Stonebroom)
- 04
CNC grinding and polishing (Zaczernie, Pirna)
- 05
Injection molding of plastic lenses
- 06
Coating (Pirna)
- 07
Assembly of complete units
- 08
Inspection and final quality control
- 09
Packaging and shipping from central warehouse in Limburg
Materials and Processes
LIBA2000+ (optical glass)
Optical glass with refractive index 1,520 for blank-pressed optics.
F2 (optical glass)
Flint glass with refractive index 1,620 for pressed lenses.
F4GT (optical glass)
Flint glass with refractive index 1,620 for blank pressing.
K10P (optical glass)
Crown glass with refractive index 1,585 for pressed optics.
Tritan (optical glass)
Optical glass with refractive index 1,522 for the pressing process.
Simax (borosilicate glass)
Borosilicate glass with refractive index 1,474, among other things for pressed components.
Quartz glass
For quartz lenses, protective glasses for laser welding systems and flat optics.
Crystal materials
Processing for ground and polished lenses.
Colored glasses
Raw material for glass color filters and pressed colored-glass optics.
Plastic (injection molding)
Injection molding material for plastic lenses such as aspheres and arrays.
Acrylic (plastic color filters)
Material for plastic color filters in various types.
Locations
Limburg an der Lahn
DEHeadquarters: management, quality assurance, marketing, sales, development with laboratory and test area, project
- Climate chamber for testing
Pirna
DEPlanoptik plant: discs, filters, laser protection glasses, prisms, beam splitters, wedges, coating
- Materials
- Optical glasses, quartz
- 4 coating systems
- Ultrasonic washing system
Zaczernie
PLRundoptik plant: ground and polished lenses, finishing of LED optics
- Lot size
- One-off parts to unlimited series
- Materials
- All optical glasses, quartz glass, crystal materials
- CNC production systems for lens grinding/polishing
- Interferometer
Stonebroom (Alfreton, Derbyshire)
GBBluebell Industries Ltd. plant: pressed optics (aspheres, spherical lenses, domes, prisms, discs)
- Part weight / size
- Diameter 3–300 mm
- Lot size
- One-off parts to unlimited series
- Materials
- LIBA2000+, F2, F4GT, K10P, Tritan, Simax, colored glasses
- Blank pressing tools and pressing systems
Optical Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Blank pressing of lenses (pressed optics)Forming | Ø +0/-0.2 mm (up to Ø 30 mm), +0/-0.3 mm (from Ø 30 mm); | 300 mm (diameter) | Diameter 3–300 mm | One-off parts – unlimited series | LIBA2000+, F2, F4GT, K10P, Tritan, Simax, colored glasses, optical glasses |
| Grinding and polishing of lenses (CNC manufacturing process)Machining | – | 300 mm (diameter) | – | One-off parts – unlimited series | all optical glasses, quartz glass, crystal materials |
| Production of prisms and flat optics (grinding and polishing)Machining | – | – | – | – | all optical glasses, quartz |
| Plastic injection molding (plastic lenses)Plastics | – | – | – | large volume | plastic |
| Coating/mirroring (AR coatings, metallic mirror and partial mirror layers,Surface | – | – | – | – | glass types, plastics |
| Production of optical filters (glass color filters, heat absorption filters, heat reflectionSurface | – | – | – | – | glass, acrylic (plastic) |
| Assembly of optomechanical assemblies (objectives, eyepieces, mounts,Assembly | – | – | – | – | – |
| Optical design, product development, sample production, prototypes, pilot series, small and largeEngineering | – | – | – | – | – |
| Quality inspection (production and final inspection via interferometer, functional and finalInspection | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection molding machine | – | – | – | – | – |
| Coating systems | – | 4 | – | – | Pirna |
| Ultrasonic washing system (cleaning of optical components) | – | – | – | – | Pirna |
| Interferometer (measuring equipment) | – | – | – | – | – |
| CNC production systems for lens grinding/polishing | – | – | – | – | – |
| Climate chamber for testing | – | 1 | – | – | Limburg |
| Blank pressing tools/pressing systems for pressed optics | – | – | – | – | Stonebroom (UK) |
Additional services
Quality
Production and final inspection of the optical surfaces is carried out according to DIN ISO 10110 using an interferometer; for assemblies, functional and final inspections are documented according to customer specifications. All locations are certified to DIN EN ISO 9001:2015; a climate chamber for testing is also available in Limburg.
| Evidence | Limburg / Pirna | Zaczernie | Stonebroom |
|---|---|---|---|
| ISO 9001 | |||
| ISO 14001 | |||
| RoHS / REACH |
History
- 1991
Founding of B&M Optik GmbH, headquartered in Limburg an der Lahn
- 2023
Bluebell Industries Ltd. (Stonebroom) receives original certification for ISO 9001:2015 / ISO 14001:2015; B&M Optik Sp. z o.o. Zaczernie receives ISO 9001:2015 certificate
- 2024
Updated DIN EN ISO 9001:2015 certificate for Limburg and Pirna valid from 2024-12-21