THz透镜

n	Download THz Lenses nDatasheet (PDF, 76 KB)

We offer THz lenses made of TPX and HRFZ-Si.

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nnnn nnnnnnnnnnnnnnnnnnnnnnnnnn Material TPX Type plano-convex, bi-convex Available diameters, mm to 100 Diameter tolerance, mm + /-0.25 Claer aperture, % >=90 EFL tolerance (for lenses), % +/- 1 Surface quality (two-sided polishing), nscr/dig 80/50 Surface accuracy, mm +/- 0.01 deviation from ideal sphere and nplane

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The following TPX lenses are available from stock:

*All EFLs are calculated for wavelength 300 ??. EFL deviations related with nrefraction index dispersion at the edges of THz range (30-3000 ??) and within nvisible range are negligible in comparison with EFL tolerances manufactured.

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n nnnn n nnnnnnnnnnnnnnnnnnnnnnnnnn Material HRFZ-Si n Type spherical, nhyper-hemispherical, hemispherical, hypo-hemispherical, and nbullet Available diameters, nmm 2-100 Dimensions tolerance, mm +/-0.1 Clear apperture, % n >=90 Surface quality, nscr/dig 80/50 Surface accuracy, nmm +/-0.01 deviation from ideal nsphere and plane Coating AR coatings upon nrequest

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The polished 'ball-shaped' blanks of HRFZ-Si (with diameters 2.0, 4.0, 6.0, n8.0, 10.0, and 12.0 mm) are always in stock. Upon your request nhyper-/hypo-/hemi-spheres will be supplied within 2 weeks as the flat surface of nthe lens can be polished for the required thickness.

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The finished parts of different dimensions are available from stock and nsupplied within a week.
For price quotation and delivery please fill in our nRequest Form. 

Also we offer HRFZ-Si meniscus lenses.

Commom specification:

nnnn nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn Material HRFZ-Si n Type positive meniscus Available diameters, mm to 150 Dimensions tolerance, mm +0.0 /-0.1 Thickness tolerance, mm +/-0.1 Edge thickness variation, mm <=0.05 Clear apperture, % 90 EFL tolerance, % +/-1 Surface quality, scr/dig 80/50 Surface figure  varies depending on radius Coatings AR coatings upon nrequest

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The following HRFZ-Si meniscus lenses are available from stock:

*All EFLs are calculated for wavelength 300 ??. EFL deviations related with nrefraction index dispersion at the edges of THz range (30-3000 ??) and within nvisible range are negligible in comparison with EFL tolerances manufactured n(+/-1%).