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OFB/OFBP/OFSQ/OFPXP/OFSQP-C
Diameter φD
Thickness t
Material
Surface Flatness
Surface Quality (Scratch-Dig)
Rear surface
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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.

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

Related product
Products
Technical Data
Documents/Downloads
Guide

▶Substrates precision polished on both sides are also available as optical parallels (OPB, OPSQ, OPSQK).
W3134
▶Pyrex® is a registered trademark of Corning.

Attention

▶Planar substrate is not coated on both sides and there is a 3.5 to 4% reflection of the surface.
▶When used in transmission (back surface is polished) the planar substrate, there is a possibility that the transmitted beam is slightly deviated. The appropriate substrate for use in transmission is the parallel planar substrate (OPB, OPSQ, OPSQK).
W3134
▶No surface accuracy guarantee data is provided with the product. If you need the sheet containing the surface accuracy guarantee data, an additional cost for creating the data is required. Please contact our Sales Division with your request.

Common Specifications
MaterialBK7 , Synthetic fused silica , Hard glass(Pyrex®)
Parallelism<3′
Clear aperture90% of the diameter or circle that inscribed in a square of 90% of the dimensions
Outline Drawing

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Schematic

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Surface Accuracy Data (reference data)

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・Surface accuracy measurement method:
    Measured with Zygo laser interferometer
・Surface accuracy measurement wavelength
    632.8nm
・Surface accuracy guaranteed temperature
    23°C±2°C
Typical Transmittance Data

Zoom
T: Transmission
Spec
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Part Number
Add to cart Cart
    JP Yen Stock Qty
OFB-10C03-10
OFB-10C05-10
OFB-10C05-20
OFSQ-10C06-20
OFB-12.7C05-10
OFB-15C03-10
OFB-15C05-10
OFB-15C05-20
OFSQ-15C06-20
OFB-20C03-10
OFB-20C05-4
OFB-20C05-10
OFB-20C05-20
OFSQ-20C06-20
OFBP-25C05-1
OFBP-25C05-4
OFBP-25C05-10
OFBP-25C05-20
OFSQP-25C06-20
OFBP-25.4C05-10
OFBP-30C05-1
OFBP-30C05-4
OFBP-30C05-10
OFBP-30C05-20
OFSQP-30C06-20
OFBP-40C06-1
OFBP-40C06-4
OFBP-40C06-10
OFBP-40C06-20
OFSQP-40C08-20
OFBP-50C08-1
OFBP-50C08-4
OFBP-50C08-10
OFBP-50C08-20
OFSQP-50C10-20
OFBP-50.8C08-10
OFPXP-60C10-1
OFPXP-60C10-4
OFPXP-60C10-10
OFPXP-60C10-20
OFPXP-80C12-1
OFPXP-80C12-4
OFPXP-80C12-10
OFPXP-80C12-20
OFPXP-100C15-1
OFPXP-100C15-4
OFPXP-100C15-10
OFPXP-130C18-1
OFPXP-130C18-4
OFPXP-130C18-10
OFPXP-150C20-1
OFPXP-150C20-4
OFPXP-150C20-10

φ10mm

3mm

BK7

λ/10

10−5

Ground

φ10mm

5mm

BK7

λ/10

10−5

Ground

φ10mm

5mm

BK7

λ/20

10−5

Ground

φ10mm

6mm

Synthetic fused silica

λ/20

20−10

Ground

φ12.7mm

5mm

BK7

λ/10

10−5

Ground

φ15mm

3mm

BK7

λ/10

10−5

Ground

φ15mm

5mm

BK7

λ/10

10−5

Ground

φ15mm

5mm

BK7

λ/20

10−5

Ground

φ15mm

6mm

Synthetic fused silica

λ/20

20−10

Ground

φ20mm

3mm

BK7

λ/10

10−5

Ground

φ20mm

5mm

BK7

λ/4

10−5

Ground

φ20mm

5mm

BK7

λ/10

10−5

Ground

φ20mm

5mm

BK7

λ/20

10−5

Ground

φ20mm

6mm

Synthetic fused silica

λ/20

20−10

Ground

φ25mm

5mm

BK7

λ

10−5

Polished

φ25mm

5mm

BK7

λ/4

10−5

Polished

φ25mm

5mm

BK7

λ/10

10−5

Polished

φ25mm

5mm

BK7

λ/20

10−5

Polished

φ25mm

6mm

Synthetic fused silica

λ/20

20−10

Polished

φ25.4mm

5mm

BK7

λ/10

10−5

Polished

φ30mm

5mm

BK7

λ

10−5

Polished

φ30mm

5mm

BK7

λ/4

10−5

Polished

φ30mm

5mm

BK7

λ/10

10−5

Polished

φ30mm

5mm

BK7

λ/20

10−5

Polished

φ30mm

6mm

Synthetic fused silica

λ/20

20−10

Polished

φ40mm

6mm

BK7

λ

10−5

Polished

φ40mm

6mm

BK7

λ/4

10−5

Polished

φ40mm

6mm

BK7

λ/10

10−5

Polished

φ40mm

6mm

BK7

λ/20

10−5

Polished

φ40mm

8mm

Synthetic fused silica

λ/20

20−10

Polished

φ50mm

8mm

BK7

λ

10−5

Polished

φ50mm

8mm

BK7

λ/4

10−5

Polished

φ50mm

8mm

BK7

λ/10

10−5

Polished

φ50mm

8mm

BK7

λ/20

10−5

Polished

φ50mm

10mm

Synthetic fused silica

λ/20

20−10

Polished

φ50.8mm

8mm

BK7

λ/10

10−5

Polished

φ60mm

10mm

Hard glass

λ

10−5

Polished

φ60mm

10mm

Hard glass

λ/4

10−5

Polished

φ60mm

10mm

Hard glass

λ/10

10−5

Polished

φ60mm

10mm

Hard glass

λ/20

10−5

Polished

φ80mm

12mm

Hard glass

λ

10−5

Polished

φ80mm

12mm

Hard glass

λ/4

10−5

Polished

φ80mm

12mm

Hard glass

λ/10

10−5

Polished

φ80mm

12mm

Hard glass

λ/20

10−5

Polished

φ100mm

15mm

Hard glass

λ

10−5

Polished

φ100mm

15mm

Hard glass

λ/4

10−5

Polished

φ100mm

15mm

Hard glass

λ/10

10−5

Polished

φ130mm

18mm

Hard glass

λ

10−5

Polished

φ130mm

18mm

Hard glass

λ/4

10−5

Polished

φ130mm

18mm

Hard glass

λ/10

10−5

Polished

φ150mm

20mm

Hard glass

λ

10−5

Polished

φ150mm

20mm

Hard glass

λ/4

10−5

Polished

φ150mm

20mm

Hard glass

λ/10

10−5

Polished

RoHS  

¥2,000

IN STOCK
RoHS  

¥2,000

IN STOCK
RoHS  

¥4,000

LOW
RoHS  

¥5,250

LOW
RoHS  

¥2,000

IN STOCK
RoHS  

¥2,000

IN STOCK
RoHS  

¥2,000

IN STOCK
RoHS  

¥4,000

IN STOCK
RoHS  

¥5,700

CONTACT
US
RoHS  

¥2,800

IN STOCK
RoHS  

¥2,450

Assembly
parts available
RoHS  

¥2,800

IN STOCK
RoHS  

¥5,600

IN STOCK
RoHS  

¥7,300

IN STOCK
RoHS  

¥2,000

CONTACT
US
RoHS  

¥2,450

CONTACT
US
RoHS  

¥3,250

CONTACT
US
RoHS  

¥6,500

IN STOCK
RoHS  

¥9,450

CONTACT
US
RoHS  

¥3,250

CONTACT
US
RoHS  

¥2,450

CONTACT
US
RoHS  

¥4,000

CONTACT
US
RoHS  

¥4,800

CONTACT
US
RoHS  

¥9,550

IN STOCK
RoHS  

¥14,400

IN STOCK
RoHS  

¥4,050

CONTACT
US
RoHS  

¥6,500

CONTACT
US
RoHS  

¥8,100

CONTACT
US
RoHS  

¥16,200

LOW
RoHS  

¥24,300

LOW
RoHS  

¥7,300

CONTACT
US
RoHS  

¥10,350

CONTACT
US
RoHS  

¥12,150

CONTACT
US
RoHS  

¥24,300

IN STOCK
RoHS  

¥34,850

IN STOCK
RoHS  

¥12,150

IN STOCK
RoHS  

¥8,100

IN STOCK
RoHS  

¥12,600

CONTACT
US
RoHS  

¥20,250

IN STOCK
RoHS  

¥40,500

IN STOCK
RoHS  

¥11,250

IN STOCK
RoHS  

¥17,550

LOW
RoHS  

¥25,650

CONTACT
US
RoHS  

¥51,300

IN STOCK
RoHS  

¥14,600

IN STOCK
RoHS  

¥20,250

CONTACT
US
RoHS  

¥32,400

LOW
RoHS  

¥23,400

LOW
RoHS  

¥32,400

CONTACT
US
RoHS  

¥56,700

LOW
RoHS  

¥32,400

CONTACT
US
RoHS  

¥56,700

CONTACT
US
RoHS  

¥90,000

CONTACT
US