Optical Flats (Square)

OFB - OFBP - OFSQ - OFPXP - OFSQP-S

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OFB - OFBP - OFSQ - OFPXP - OFSQP-S

These Optical Flats are precision polished on one side to a high accuracy and surface quality. They are suitable substrates to be coated with an optical thin film, such as a custom-made mirror.

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Make-To-Order Standard Coatings

Name

A x B

Material

Rear Surface

Delivery

Price

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details

OFSQ-25S06-20

25mm x 25mm

Synthetic fused silica

Ground

4-6 weeks

€125.70

Material	Synthetic fused silica
Parallelism	＜3′
Outer dimension A	□25mm
Thickness t	6mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	20−10
Rear surface	Ground

details

OFPXP-130S18-4

Hard glass

Polished

1 week

€382.60

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□130mm
Thickness t	18mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-40S06-4

40mm x 40mm

Hard glass

Polished

2 weeks

€88.40

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□40mm
Thickness t	6mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-150S20-1

Hard glass

Polished

1 week

€382.60

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□150mm
Thickness t	20mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-50S08-1

50mm x 50mm

Hard glass

Polished

1 week

€73.90

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□50mm
Thickness t	8mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-150S20-4

Hard glass

Polished

1 week

€661.00

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□150mm
Thickness t	20mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-50S08-20

50mm x 50mm

Hard glass

Polished

1 week

€286.90

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□50mm
Thickness t	8mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-25S05-4

25mm x 25mm

BK7

Ground

2 weeks

€47.20

Material	BK7
Parallelism	＜3′
Outer dimension A	□25mm
Thickness t	5mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-60S10-10

Hard glass

Polished

1 week

€234.80

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□60mm
Thickness t	10mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-30S05-1

30mm x 30mm

BK7

Ground

2 weeks

€39.10

Material	BK7
Parallelism	＜3′
Outer dimension A	□30mm
Thickness t	5mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-80S12-1

80mm x 80mm

Hard glass

Polished

4-6 weeks

€148.80

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□80mm
Thickness t	12mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-30S05-20

30mm x 30mm

BK7

Ground

1 week

€147.90

Material	BK7
Parallelism	＜3′
Outer dimension A	□30mm
Thickness t	5mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-80S12-4

80mm x 80mm

Hard glass

Polished

4-6 weeks

€203.90

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□80mm
Thickness t	12mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-15S03-10

15mm x 15mm

BK7

Ground

1 week

€26.90

Material	BK7
Parallelism	＜3′
Outer dimension A	□15mm
Thickness t	3mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-100S15-1

Hard glass

Polished

4-6 weeks

€180.20

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□100mm
Thickness t	15mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-15S05-20

15mm x 15mm

BK7

Ground

4-6 weeks

€54.00

Material	BK7
Parallelism	＜3′
Outer dimension A	□15mm
Thickness t	5mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFSQ-15S06-20

15mm x 15mm

Synthetic fused silica

Ground

1 week

€62.80

Material	Synthetic fused silica
Parallelism	＜3′
Outer dimension A	□15mm
Thickness t	6mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	20−10
Rear surface	Ground

details

OFPXP-130S18-1

Hard glass

Polished

4-6 weeks

€258.50

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□130mm
Thickness t	18mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFSQ-30S06-20

30mm x 30mm

Synthetic fused silica

Ground

4-6 weeks

€195.50

Material	Synthetic fused silica
Parallelism	＜3′
Outer dimension A	□30mm
Thickness t	6mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	20−10
Rear surface	Ground

details

OFB-20S05-4

20mm x 20mm

BK7

Ground

2 weeks

€31.20

Material	BK7
Parallelism	＜3′
Outer dimension A	□20mm
Thickness t	5mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-40S06-10

40mm x 40mm

Hard glass

Polished

1 week

€109.50

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□40mm
Thickness t	6mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-20S05-10

20mm x 20mm

BK7

Ground

1 week

€39.10

Material	BK7
Parallelism	＜3′
Outer dimension A	□20mm
Thickness t	5mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-50S08-4

50mm x 50mm

Hard glass

Polished

2 weeks

€121.30

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□50mm
Thickness t	8mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-25S05-1

25mm x 25mm

BK7

Ground

2 weeks

€31.20

Material	BK7
Parallelism	＜3′
Outer dimension A	□25mm
Thickness t	5mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-60S10-1

Hard glass

Polished

1 week

€94.20

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□60mm
Thickness t	10mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-25S05-10

25mm x 25mm

BK7

Ground

1 week

€54.90

Material	BK7
Parallelism	＜3′
Outer dimension A	□25mm
Thickness t	5mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFB-10S03-10

10mm x 10mm

BK7

Ground

1 week

€19.40

Material	BK7
Parallelism	＜3′
Outer dimension A	□10mm
Thickness t	3mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFB-30S05-4

30mm x 30mm

BK7

Ground

2 weeks

€58.30

Material	BK7
Parallelism	＜3′
Outer dimension A	□30mm
Thickness t	5mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFB-10S05-10

10mm x 10mm

BK7

Ground

1 week

€19.40

Material	BK7
Parallelism	＜3′
Outer dimension A	□10mm
Thickness t	5mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFB-15S03-4

15mm x 15mm

BK7

Ground

2 weeks

€23.50

Material	BK7
Parallelism	＜3′
Outer dimension A	□15mm
Thickness t	3mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-80S12-20

80mm x 80mm

Hard glass

Polished

4-6 weeks

€595.20

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□80mm
Thickness t	12mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-15S05-10

15mm x 15mm

BK7

Ground

1 week

€26.90

Material	BK7
Parallelism	＜3′
Outer dimension A	□15mm
Thickness t	5mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-100S15-10

Hard glass

Polished

1 week

€375.80

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□100mm
Thickness t	15mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFSQ-20S06-20

20mm x 20mm

Synthetic fused silica

Ground

1 week

€91.20

Material	Synthetic fused silica
Parallelism	＜3′
Outer dimension A	□20mm
Thickness t	6mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	20−10
Rear surface	Ground

details

OFB-20S03-10

20mm x 20mm

BK7

Ground

1 week

€39.10

Material	BK7
Parallelism	＜3′
Outer dimension A	□20mm
Thickness t	3mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-40S06-1

40mm x 40mm

Hard glass

Polished

1 week

€58.30

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□40mm
Thickness t	6mm
Surface Flatness	λ
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-130S18-10

Hard glass

Polished

1 week

€626.10

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□130mm
Thickness t	18mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-40S06-20

40mm x 40mm

Hard glass

Polished

1 week

€217.30

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□40mm
Thickness t	6mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-20S05-20

20mm x 20mm

BK7

Ground

1 week

€78.30

Material	BK7
Parallelism	＜3′
Outer dimension A	□20mm
Thickness t	5mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-50S08-10

50mm x 50mm

Hard glass

Polished

1 week

€144.50

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□50mm
Thickness t	8mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-150S20-10

Hard glass

Polished

4-6 weeks

€1,017.60

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□150mm
Thickness t	20mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFPXP-60S10-4

Hard glass

Polished

1 week

€148.80

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□60mm
Thickness t	10mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-25S05-20

25mm x 25mm

BK7

Ground

1 week

€109.50

Material	BK7
Parallelism	＜3′
Outer dimension A	□25mm
Thickness t	5mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-60S10-20

Hard glass

Polished

4-6 weeks

€469.60

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□60mm
Thickness t	10mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-30S05-10

30mm x 30mm

BK7

Ground

1 week

€73.90

Material	BK7
Parallelism	＜3′
Outer dimension A	□30mm
Thickness t	5mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFB-10S05-20

10mm x 10mm

BK7

Ground

1 week

€38.70

Material	BK7
Parallelism	＜3′
Outer dimension A	□10mm
Thickness t	5mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-80S12-10

80mm x 80mm

Hard glass

Polished

1 week

€297.50

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□80mm
Thickness t	12mm
Surface Flatness	λ/10
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFB-15S05-4

15mm x 15mm

BK7

Ground

2 weeks

€23.50

Material	BK7
Parallelism	＜3′
Outer dimension A	□15mm
Thickness t	5mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

details

OFPXP-100S15-4

Hard glass

Polished

4-6 weeks

€250.80

Material	Hard glass
Parallelism	＜3′
Outer dimension A	□100mm
Thickness t	15mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Polished

details

OFSQ-10S06-20

10mm x 10mm

Synthetic fused silica

Ground

1 week

€50.60

Material	Synthetic fused silica
Parallelism	＜3′
Outer dimension A	□10mm
Thickness t	6mm
Surface Flatness	λ/20
Surface Quality (Scratch-Dig)	20−10
Rear surface	Ground

details

OFB-20S03-4

20mm x 20mm

BK7

Ground

2 weeks

€31.20

Material	BK7
Parallelism	＜3′
Outer dimension A	□20mm
Thickness t	3mm
Surface Flatness	λ/4
Surface Quality (Scratch-Dig)	10−5
Rear surface	Ground

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◦ We offer these substrates in a wide variety shapes and sizes, thickness and surface accuracy to allow for selection according to your required specifications.

Optical Flats (Square)

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