Filter stacks (or "Laminated Filters") consist of two or more substrate materials that are bonded together. The thickness of the layers and chosen materials can be varied to affect virtually any transmission function. These structures are an excellent alternative to interference coatings for some applications.
- No "angle shift" - normalized internal transmission remains constant at any angle
- Durable and Cleanable - Even the hardest coatings can be damaged by abrasives and solvents. Filter stacks are as durable as a piece of glass.
- Lower cost
These structures can even be coated for an additional performance boost. Our advanced design tools will make quick work of determining the ideal structure for your application.