SIGMAKOKI

Register


TFG/TFGS
Type
Quantity
Optics Size
Thickness t
Surface Flatness (Wavelegth 632.8nm)
Surface Flatness (Convert at 10.6μm)
Material
Rear surface
Zoom

Gold (Au) coated reflection mirrors have high reflectance over wide infrared range.

◦Chromium (Cr) is used as the undercoated to better reinforce the adhesion of gold to the substrate.
◦ Gold mirrors with silicon substrates have higher durability than glass because gold coating adheres much stronger to silicon and has a higher thermal conductivity. (thermal conductivity of silicon is 111 times better compared to glass)

Related product
Products
Technical Data
Documents/Downloads
Guide

▶Please contact our Sales Division for customized products. (customize outer diameter, etc.)
▶Pyrex® is a registered trademark of Corning Inc.
▶Please refer to here for "Wavelength Characteristic Data (Reference Data, Transmittance: T[%]) " for each wavelength.

Attention

▶When silicon mirrors are water-cooled, heat dissipates more quickly and they have higher durability.
▶Since gold coating has an extremely low mechanical strength, extra care should be taken and it is recommended that cleaning of the surface be limited to blowing off the coated surface.
▶Reflectance of the specification are represented by the average of the reflectance of P polarized light and S polarized light.

Common Specifications
MaterialBK7
Hard glass (Pyrex® etc.)
Silicon
CoatingCr (Chromium)+Au(Gold) 
Parallelism<3′
Surface Quality (Scratch-Dig)40-20
Clear apertureCircle of 90% of the diameter or Circle that inscribed in a square of 90% of the dimensions
Laser Damage Threshold1.2kW/cm2 (CW laser)
Outline Drawing

Zoom

Zoom
Schematic

Zoom
Typical Reflectance Data

Zoom
R: Reflectance

Click here for numerical data in tabular format (Reference Data, EXCEL file format).
Typical Reflectance Data (Infra Red)

Zoom
R: Reflectance
Spec
Compare
Part Number
Add to cart Cart
    JP Yen Stock Qty
TFG-20C05-10
TFG-25C05-10
TFG-25C05-10-C
TFG-30C05-10
TFG-40C06-10
TFG-50C08-10
TFG-20S05-10
TFG-25S05-10
TFG-30S05-10
TFG-50S08-10
TFGS-30C03-2
TFGS-40C04-2
TFGS-50C05-2

Glass Circle

1 piece

φ20mm

5mm

λ/10

λ/160

BK7

Ground

Glass Circle

1 piece

φ25mm

5mm

λ/10

λ/160

BK7

Polished

Glass Circle

10 pieces 1 set

φ25mm

5mm

λ/10

λ/160

BK7

Polished

Glass Circle

1 piece

φ30mm

5mm

λ/10

λ/160

BK7

Polished

Glass Circle

1 piece

φ40mm

6mm

λ/10

λ/160

BK7

Polished

Glass Circle

1 piece

φ50mm

8mm

λ/10

λ/160

BK7

Polished

Glass Rectangle

1 piece

□20mm

5mm

λ/10

λ/160

BK7

Ground

Glass Rectangle

1 piece

□25mm

5mm

λ/10

λ/160

BK7

Ground

Glass Rectangle

1 piece

□30mm

5mm

λ/10

λ/160

BK7

Ground

Glass Rectangle

1 piece

□50mm

8mm

λ/10

λ/160

Hard glass

Polished

Sillcon Circle

1 piece

φ30mm

3mm

λ

λ/16

Single Silicon crystal

Ground

Sillcon Circle

1 piece

φ40mm

4mm

λ

λ/16

Single Silicon crystal

Ground

Sillcon Circle

1 piece

φ50mm

5mm

λ

λ/16

Single Silicon crystal

Ground

RoHS  

¥12,000

IN STOCK
RoHS  

¥14,000

IN STOCK
RoHS  

¥48,000

LOW
RoHS  

¥16,000

IN STOCK
RoHS  

¥18,000

IN STOCK
RoHS  

¥21,000

IN STOCK
RoHS  

¥13,000

IN STOCK
RoHS  

¥16,000

IN STOCK
RoHS  

¥18,000

CONTACT
US
RoHS  

¥25,000

IN STOCK
RoHS  

¥56,000

CONTACT
US
RoHS  

¥70,000

CONTACT
US
RoHS  

¥75,000

CONTACT
US