Stress-free optic retention
Hold a lens without inducing the birefringence or figure error that clamping pressure causes.
Lens Mount · NLB series Lens Mount
NLB20-B
NLB series Lens Mount
Lens size covers 10-50.8mm diameter come with teflon retaining ring for soft protection.
Datasheet (PDF) ↗CAD Model (RAR) ↗Catalog context
Where NLB20-B fits
NLB20-B is listed as NLB series Lens Mount in the NLB series Lens Mount family. The local catalog record provides these first selection fields: Clear Aperture A (mm): φ17; Optics Size B (mm): φ20; Optics ThicknessC (mm): 3~8.
Specifications
| Clear Aperture A (mm) | φ17 |
|---|---|
| Optics Size B (mm) | φ20 |
| Optics ThicknessC (mm) | 3~8 |
| Optic Center HeightH (mm) | 25 |
| Overall Height L (mm) | 41 |
| Overall thickness T (mm) | 12 |
| D (mm) | 28 |
| E (mm) | 8 |
| W1 (mm) | 6 |
| W2 (mm) | 12 |
| Mounting Hole | M6 |
Application context
Why this design is used
Application guidance is derived from the product family and tied to the model-specific selection fields above.
Focus and conjugate setting
Position a lens along the axis to place image and Fourier planes where the design requires.
Centration adjustment
Bring the optical axis of the lens onto the axis of the beam rather than the mechanics.
System integration
Integration and compatibility
Use these checks to connect NLB20-B to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Optic it accepts
- Clear Aperture A (mm): φ17 · Optics Size B (mm): φ20
- Check diameter and thickness together. A holder that accepts the diameter can still fail to retain an optic that is thinner than its minimum, and clear aperture is normally smaller than the optic the mount holds.
- Mounting interface
- Mounting Hole: M6
- Match the thread standard and hole pitch before ordering. Metric and imperial hardware interchange only through an adapter, and a thread that is nominally similar is not necessarily the same pitch.
Technical FAQ
Integration questions for NLB20-B
Which optics fit the NLB20-B?
Clear Aperture A (mm): φ17 · Optics Size B (mm): φ20. Check diameter and thickness together. A holder that accepts the diameter can still fail to retain an optic that is thinner than its minimum, and clear aperture is normally smaller than the optic the mount holds.
How does the NLB20-B mount?
Mounting Hole: M6. Match the thread standard and hole pitch before ordering. Metric and imperial hardware interchange only through an adapter, and a thread that is nominally similar is not necessarily the same pitch.
Model selection
Nearby series comparison
Compare NLB20-B with the closest available models in the NLB series Lens Mount family. Confirm option-dependent values on the final configuration before ordering.
