OptoSigma

S-TFA
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An economic general use mirror suitable for an illumination optical system and a simple experiments. It has the same reflectance and surface flatness as our aluminum mirrors (TFA) designed for use with a laser, but lower surface quality.

◦The dirt on the surface of the mirror can be wiped because the scratch-resistant protection is coated on the aluminum coating.
◦Reflectance of less variation can be obtained in a wide wavelength range from visible to near-infrared.

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Attention

▶When a laser is transmitted with multiple mirrors installed, there will be loss of a large amount of light caused by the absorption of the aluminum coating. Please switch to dielectric multi-layer mirrors (TFM) for improved performance.
▶Reflectance specification is represented by the average of the reflectance of P polarized light and S polarized light. Reflectance may vary depending on the polarization state of the incident beam.

Common Specifications
MaterialBK7
CoatingAl+MgF2
Parallelism<3′
Incident angle45°
Laser Damage Threshold0.25J/cm2 (Laser pulse width ; 10ns , Repetition frequency ; 20Hz)
Surface Quality (Scratch-Dig)60-40
Clear aperture90% of the diameter
Circle or Ellipse that inscribed in a square of 90% of the dimensions
Outline Drawing

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Schematic

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Typical Reflectance Data

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R: Reflectance

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R: Reflectance
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Part Number
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    PRICE(USD) Stock Qty
S-TFA-10C03-10
S-TFA-10C05-10
S-TFA-15C03-10
S-TFA-15C05-10
S-TFA-20C03-10
S-TFA-20C05-10
S-TFA-25C05-1
S-TFA-25C05-10
S-TFA-30C05-1
S-TFA-30C05-10
S-TFA-40C06-1
S-TFA-40C06-10
S-TFA-50C08-1
S-TFA-50C08-10
S-TFA-10S03-10
S-TFA-15S03-10
S-TFA-20S03-10
S-TFA-20S05-4
S-TFA-20S05-10
S-TFA-25S05-10
S-TFA-30S05-1
S-TFA-30S05-10
S-TFA-1015R03-10
S-TFA-1015R05-10
S-TFA-1525R03-10
S-TFA-1525R05-10
S-TFA-2030R05-10
S-TFA-2535R05-10

φ10mm

3mm

λ/10

Ground

φ10mm

5mm

λ/10

Ground

φ15mm

3mm

λ/10

Ground

φ15mm

5mm

λ/10

Ground

φ20mm

3mm

λ/10

Ground

φ20mm

5mm

λ/10

Ground

φ25mm

5mm

λ

Polished

φ25mm

5mm

λ/10

Polished

φ30mm

5mm

λ

Polished

φ30mm

5mm

λ/10

Polished

φ40mm

6mm

λ

Polished

φ40mm

6mm

λ/10

Polished

φ50mm

8mm

λ

Polished

φ50mm

8mm

λ/10

Polished

10×10mm

3mm

λ/10

Ground

15×15mm

3mm

λ/10

Ground

20×20mm

3mm

λ/10

Ground

20×20mm

5mm

λ/4

Ground

20×20mm

5mm

λ/10

Ground

25×25mm

5mm

λ/10

Ground

30×30mm

5mm

λ

Ground

30×30mm

5mm

λ/10

Ground

10×15mm

3mm

λ/10

Ground

10×15mm

5mm

λ/10

Ground

15×25mm

3mm

λ/10

Ground

15×25mm

5mm

λ/10

Ground

20×30mm

5mm

λ/10

Ground

25×35mm

5mm

λ/10

Ground

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$25.00

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$25.00

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$35.00

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$35.00

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