
Manufacturing of custom plano optics, microprisms and optical assemblies including coating at one location.

Zünd Präzisionsoptik AG / Optivac AG
Diepoldsau (CH)New on Amplifa
About ZÜND
The Zünd Group is a competence center for demanding plano optics and optical coatings with a production site in Diepoldsau, Switzerland. With 65 employees, the company develops and produces custom plano-optical components, microprisms and optical assemblies for customers from industries such as optics, photonics, machine vision, electronics and mechanics. The entire value chain is united under one roof at the site: from bonding through grinding, lapping, polishing and beveling to coating, cementing and assembly of optical assemblies. The range of services extends from the manufacture of complex optical assemblies to high-tech coating of a wide variety of substrate types and shapes. The company supports its customers throughout the entire product life cycle — from engineering to series production — and supplies customers worldwide. Both Zünd Präzisionsoptik AG and Optivac AG are certified to ISO 9001:2015.
- Site
- Diepoldsau
- Processes
- Bonding, Grinding, Lapping, Polishing, Beveling, Coating (optical coatings of a wide variety of substrate types and shapes), Cementing, Assembly of optical assemblies
- Materials
- Plano-optical components, Microprisms, Various substrate types and shapes
- Certificates
- ISO 9001:2015
- Employees
- 65
- Industries
- Optics, Photonics, Machine vision, Electronics, Mechanics
- 01
Engineering/product development
- 02
Bonding
- 03
Grinding
- 04
Lapping
- 05
Polishing
- 06
Beveling
- 07
Coating
- 08
Cementing
- 09
Assembly of optical assemblies
Processes & Substrates
Plano-optical components
Custom plano-optical components from one-off production to series.
Microprisms
Manufacture of microprisms as part of the certified scope.
Various substrate types and shapes
High-tech coating of a wide variety of substrate types and shapes.
Locations

Diepoldsau
CHProduction site for plano optics and coatings; entire value chain under one roof (Zünd
Inside the production

Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| BondingJoining | – | – | – | – | – |
| GrindingMachining | – | – | – | – | – |
| LappingMachining | – | – | – | – | – |
| PolishingSurface | – | – | – | – | – |
| BevelingMachining | – | – | – | – | – |
| Coating (optical coatings of a wide variety of substrate types and shapes)Surface | – | – | – | – | – |
| CementingJoining | – | – | – | – | – |
| Assembly of optical assembliesAssembly | – | – | – | – | – |
| Manufacture of plano optics, microprisms and optical assemblies (engineering through seriesEngineering | – | – | – | – | – |
Additional services
Quality
Both group companies, Zünd Präzisionsoptik AG and Optivac AG, are certified to ISO 9001:2015 (SQS). Processes are continuously audited and improved, with a focus on product quality, adherence to delivery dates and technical expertise.
| Evidence | Diepoldsau |
|---|---|
| ISO 9001:2015 |
History
- 2025
Participation in the Laser World of Photonics in Munich (June 24–27, 2025).
- 2026
Participation in the W3+ Fair in Jena (booth D8a) and participation in VISION 2026 in Stuttgart (October 6–8, 2026).