Token Objects and Targets

Sku: 203426

Ovio instruments

The strong points

Essential for the practical study of Fourier Imaging, this 40mm Ø disk is composed of objects, test patterns, and grids carefully selected and designed using microlithographic process.

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Technical characteristics

Type de composant

Filtre de Fourier

Caractéristiques techniques

- Disc diameter: 40mm - Thickness: 2mm - Material: chrome and glass - Pattern arrangement: in quarters - Content: . Object for high-pass filtering: panda behind bars: free it by selecting the correct cutoff frequency . Object for low-pass filtering: trace only the image contours by keeping only the low frequencies . Fine grid test pattern: line thickness = 250 µm . Coarse grid test pattern: line thickness = 500 µm