Lens Barrel Athermal Clearance Calculator

Precision Optomechanics: Determine minimum radial assembly clearance to prevent thermal pinch, interface pressure, and glass compressive fracture during cold soak.

Lens & Barrel Materials & Thermal Span

Lens Outer Diameter $D_g$ (mm):

Initial Radial Clearance $\delta_0$ (μm):

Optical Glass Type:

Barrel Metal Material:

Assembly Temp $T_{nom}$ (°C):

Minimum Cold Temp $T_{min}$ (°C):

Thermal Contraction & Interface Stress

Differential ($\Delta r$)

-- μm

Cold Gap Residual

-- μm

Pinch Pressure ($p$)

-- MPa

Glass Stress ($\sigma_c$)

-- MPa

Minimum Safe Assembly Gap: -- μm (includes 5 μm margin)

Optomechanical State: --

Recommended Tools & Equipment

Tested hardware and components for high reliability

100% Free Tool Zero Sign-Up

Lens Barrel Athermal Clearance Calculator

Lens & Barrel Materials & Thermal Span

Thermal Contraction & Interface Stress

Frequently Asked Questions