SIGMAKOKI

Register


f-theta-10600
Focal length f
Scanning angle
Scanning Range
Working distance (WD)
Zoom

The f theta lens for CO2 laser is made by a single lens of zinc selenide (ZnSe). These are used in the laser marking systems.

◦It is compact and lightweight because it is composed of a single lens.
◦The design and use are processed to an optimum shape of various aberrations becomes smaller.
◦There are wide variety of the lineup that scan area is 50mm to 300mm.

Important: Treatment of ZnSe optics
ZnSe (Zinc selenide) is Poisonous and harmful substance classified as legal, depending on the specifications, the certificate of delivery may be required for acquisition of Poisonous and harmful substances. In addition, ZnSe Optics disposal after use is prohibited in general.
Lenses that are no longer needed, please return it to us.

However, we only take back products that we supplied. This policy noted is in Japan and other countries may differ in the treatment of ZnSe (Zinc selenide), please contact your local sales office.

Related product
Products
Technical Data
Documents/Downloads
Guide

▶We also offer f theta lens in other than CO2 laser wavelength of 10.6μm.
W3084

Attention

▶Hydrogen selenium is harmful when it comes to contact with strong acids! Do not immerse the lens in hydrochloric or sulphuric acid.
▶When light is condensed on the surface of ZnSe, the high power laser beam may produce toxic gases due to the thermal decomposition. In addition, a large amount of gas and powder occurs when the ZnSe lens is damaged by the laser thermal runaway. In case of the ZnSe lens is damaged by any chance, DO NOT handle the lens with your bare hands. Collect the debris and be careful not to inhale the powder and steam generated.
▶It is not recommended to use the f theta lens for the optical imaging system because it is designed for the scanning system.
▶Please place in accordance with the position of the entrance pupil of the fθ lens beam scanning system (galvanometer mirror). If the incident pupil is not in position of the beam scanning system, the optimum focusing spot cannot be achieved because the aberration will increase.

Common Specifications
MaterialZinc selenide (ZnSe)
Design wavelength10.6μm
Entrance pupil diameterφ12mm
Distance to lens from pupil25mm
CoatingDielectric multi-layer coating
Outline Drawing

Zoom
Schematic

Zoom

By using the f theta lens, it is possible to be moved a laser light spot in constant speed linear motion on the focal plane by scanning the mirrors such as galvanometer scanner mirrors. The f theta lens enables this by the effect of distortion. Mathematically it is expressed as following; focal length = “f”, ideal image height = “x”, the angle of scanned = “θ” therefore, x = fθ. In the normal single lens, the ideal image height “x” is represented by “x = f tanθ”. Characteristics of both are the same in a small angle range. However, the difference is greater angle increases.
Spec
Compare
Part Number
Add to cart Cart
    JP Yen Stock Qty
fθ-75-10600ANEW
fθ-100-10600ANEW
fθ-150-10600ANEW
fθ-200-10600ANEW
fθ-250-10600ANEW
fθ-300-10600ANEW
fθ-360-10600ANEW
fθ-433-10600ANEW
fθ-75-10600生産中止
fθ-100-10600生産中止
fθ-150-10600生産中止
fθ-200-10600生産中止
fθ-250-10600生産中止
fθ-300-10600生産中止
fθ-340-10600生産中止
fθ-400-10600生産中止

75mm

±28°

50×50mm

57.8mm

100mm

±21°

71×71mm

85.8mm

150mm

±29°

110×110mm

139.0mm

200mm

±28°

140×140mm

181.2mm

250mm

±28°

177×177mm

232.7mm

300mm

±28°

213×213mm

283.6mm

360mm

±20°

250×250mm

344.7mm

433mm

±20°

300×300mm

414.5mm

75mm

-

50×50mm

57.8mm

100mm

-

70×70mm

85.8mm

150mm

-

110×110mm

139.0mm

200mm

-

140×140mm

181.2mm

250mm

-

175×175mm

232.7mm

300mm

-

210×210mm

283.6mm

340mm

-

250×250mm

344.7mm

400mm

-

300×300mm

414.5mm

RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS  

¥110,000

CONTACT
US
RoHS   - - -
RoHS   - - -
RoHS   - - -
RoHS   - - -
RoHS   - - -
RoHS   - - -
RoHS   - - -
RoHS   - - -