Various F-Theta Lenses

  • Update:Jul 03, 2021
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F-theta lenses are used in laser scanners (laser markers) and the laser wavelengths may be 355nm 266nm and other wavelengths. We can provide full range of f-theta lenses according to your applications.

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Description of STY series f-theta Lenses: STY-xxxx-yyy-zzz-dd-A

Remark: (1) The f-theta lens consists of 3 lenses and one protective window/glass. The coating is a di-electric layer. The transmission is >99% at 1064nm. Two sides of the protective glass are AR-coated at 1064nm.
(2) In the following tables, the abbreviations are as follows: FL means effective focal length; EP means max. input beam diameter; SAR means scan area, AS means aperture stop; WD means working distance; OD means max. outside diameter; MT means mount thread, fs means fused silica, SA means max. full diagonal scan angle; L2 (a1) means recommended mirror separation; a2 means 2nd mirror to flange, L1 means the distance 2nd mirror and scan lens, SL means scan length, Length means the total length of the scan lens, WC means water cooled.

Wavelength 1940nm

STY Series 1940nm Standard F-theta Lenses (Fused Silica)

Model FL mm WD mm EP mm SA θmax SAR mm FSD µm OD mm MT
STY-1940-98-166 166 207.58 14 ±24º Φ139/98x98 40.68 120 M85×1
STY-1940-2000-175-260 260 323.65 14 ±25º Φ247.5/175x175 64.4 126 M85×1
STY-1940-190-280 280 346.1 14 ±27.5º Φ269/190x190 71 120 M85×1
STY-1940-318-465 465 554 14 ±27.5 º Φ446/318x318 117.9 120 M85×1
STY-1940-380-554 554 655.77 14 ±27.5 º Φ532/380x380 140.49 120 M85×1

STYT Series 1940nm Telecentric F-theta Lenses (Fused Silica)

Model FL mm WD mm EP mm SA maxi SAR, mm (round/square) FSD µm OD mm Max IA (o) MT
STYT-1940-26-68 68 88.38 10 ±16º Φ37/26x26 24.1 90 1.25 M85x1
STYT-1940-56-100 100 135.66 14 ±22.5º Φ79/56x56 25.5 130 2.1 M85x1

Wavelength 1550nm

STH Series 1550nm F-theta Lenses

Model FL mm WD mm EP mm SA max SAR mm FSD µm Mirrors L2/L1 mm MT
STH-1550-28-63-8 63 77 8 ±18º 28x28 22 10/10 M39x1
STH-1550-45-100-8 100 106 8 ±18º 45x45 35 10/10 M39x1

STYT Series 1550nm Telecentric F-theta Lenses (Fused Silica)

Model FL mm WD mm EP mm SA maxi SAR, mm (round/square) FSD µm OD mm Max IA (o) MT
STYT-1550-57.5-100 100 126 15 ±22º Φ77/57.5x57.5 18.9 120 2.3 M85x1

Wavelength 780-980nm

STY Series 780-980nm F-theta Lenses (Optical Glass)

Model F.L. mm WD mm EP mm Scan angle Scan area mm FSD µm OD mm MT
STY-980-70-100 100 111.62 12 ±28º Φ100/70x70 16.33 90 M85x1
STY-780-980-70-100R 100 104 12 ±28º Φ100/70x70 15 90 M85x1
STY-980-110-160 160 182.29 12 ±28º Φ158/110x110 25.9 90 M85x1
STY-980-100-160 160 181.04 20 ±28º Φ141/100x100 14.62 120 M85x1
STY-980-113-163 163 185 12 ±28º Φ160/113x113 24.43 90 M85x1
STY-980-100-163 163 179.61 20 ±28º Φ160/100x100 15.77 115 M85x1
STY-980-100-165 165 181.04 20 ±28º Φ141/100x100 14.62 120 M85x1
STY-915-940-100-170 170 191.97 30 ±25º Φ140/100x100 10.11 140 M85x1
STY-980-100-170 170 191.97 30 ±25º Φ144/100x100 10.11 140 M85x1
STY-915-940-175-254 254 271.07 14-20 ±28º Φ247/175x175 32.5 120 M85x1
STY-915-940-156-254 254 286.08 30 ±25º Φ220/156x156 15 140 M85x1
STY-980-156-254 254 286.08 30 ±25º Φ220/156x156 15 140 M85x1
STY-980-261-420 420 502.23 30 ±25.2º Φ369/261x261 25.11 140 M85x1

Remark: STY-980-156-254 and STY-980-261-420 can be used at 940nm & 815nm, too.

STH Series 980nm F-theta Lenses

Model FL mm WD mm EP mm SA max SAR mm FSD µm Mirrors L2/L1 mm MT
STH-980-70-100-12 100 114.6 12 ±28º 70x70 16 16/16 M85x1
STH-980-110-160-12 160 176 12 ±28º 110x110 26 16/16 M85x1

STYT Series 980nm Telecentric F-theta Lenses (Optical Glass)

Model FL mm WD mm E.P. mm Scan angle maxi SAR, mm (round/square) Focus size µm OD mm Max IA (o) MT
STYT-532-115-210M95 210 279.63 30 ±22º Φ161/115x115 20 198 3.3 M55x1
STYT-532-115-210M112 210 256.48 30 ±22.5º Φ161/115x115 20 198 2.42 M112x1

STY Series 915nm F-theta Lenses (Fused Silica)

Model F.L.mm WDmm EPmm Scan angle Scan areamm Focus spotµm ODmm MT
STY-915-100-160 160 203.05 20 ±26º Φ143/100x100 13.4 130 M85x1
STY-915-100-170 254 314.17 20 ±25º Φ219/155x155 21.3 130 M85x1
STY-510-550-156-225 330 392.53 20 ±28º Φ325/230x230 27.6 130 M85x1

STH Series 915nm F-theta Lenses

Model FLmm WDmm EPmm SAmax SARmm FSDµm Mirrors L2/L1mm MT
STH-915-110-160-12 160 176 12 ±28º 110x110 26 16/16 M85x1

Wavelength 405nm

STH Series 405nm F-theta Lenses

Model FLmm WDmm EPmm SAmax SARmm FSDµm Mirrors L2/L1mm MT
STH-405-110-160-12 160 176 12 ±28º 110x110 26 16/16 M85x1
STH-405-140-210-12 210 230 12 ±28º 140x140 34 16/16 M85x1
STH-405-175-254-16 254 284 16 ±28º 175x175 31 16/16 M85x1
STH-405-200-290-16 290 324 16 ±28º 200x200 31 16/16 M85x1

STY Series 405nm F-theta Lenses (Fused Silica)

Model FLmm WDmm EPmm SAmax SAR, mm (round/square) FSDµm ODmm MT
STY-405-300-375 375.42 430.89 10 ±31.2º Φ424/300x300 27.8 116 M92x1
STY-405-520-750 750 839.53 16 ±28º Φ736/520x520 35 120 M85x1
STY-405-600-840 840 941.93 18 ±28º Φ850/600x600 34.59 120 M85x1

Wavelength 355nm

STY Series 355nm F-theta Lenses (Fused Silica)

Model FLmm WDmm E.P.mm SAmax SAR, mm (round/square) FSDµm ODmm MT
STY-355-65-100 100 121.37 8 ±25º Φ90/65×65 8.36 90 M85x1
STY-355-80-130 130 161.14 10 ±25º 113/80x80 8.5 90 M85x1
STY-355-100-160 160 193.89 10 ±25º Φ140/100×100 10.3 90 M85x1
STY-355-110-162 162 200.82 12 ±28º Φ155/110×110 8.77 105 M85x1
STY-355-105-170 170 210.19 10 ±25º Φ148/105×105 11.04 90 M85x1
STY-355-135-210 210 250.55 10 ±25º Φ190/135×135 13.6 90 M85x1
STY-355-130-210 210 236.91 15 ±25º Φ185/130×130 9.1 120 M85x1
STY-355-103-235 235 189.02 10 ±17.4’’ Φ146/103×103 15.27 90 M85x1
STY-355-175-254-10 254 300.72 10 ±25º Φ247.5/175×175 16.4 90 M85x1
STY-355-170-254-14 254 318.21 14 ±27º Φ241.2/175×175 11.79 120 M85x1
STY-355-175-255 255 313.53 10 ±28º Φ221/175×175 16.57 120 M85x1
STY-355-201-305 305 365.55 16 ±26.7º Φ285/201×201 12.38 120 M85x1
STY-355-195-330 330 390.77 10 ±24º Φ276/195×195 21.43 90 M85x1
STY-355-203-330 330 383.39 14 ±25º Φ288/203×203 15.3 120 M85x1
STY-355-216-350 350 409.61 10 ±25º Φ305/216×216 16.24 120 M85x1
STY-355-290-470 470 535.30 16 ±25º Φ410/290×290 19.08 120 M85x1
STY-355-320-500 500 568.14 14 ±26º Φ452/320×320 23 120 M85x1
STY-355-360-580 580 663.11 16 ±25º Φ509/360×360 25.22 120 M85x1
STY-355-468-730 730 702.04 10 ±26º Φ661/468×468 47.4 90 M85x1
STY-355-520-750 750 823.37 16 ±28º Φ735/520×520 32.3 120 M85x1
STY-355-600-840 840 921.44 18 ±29º Φ850/600×600 30.3 120 M85x1
STY-355-660-910 910 990.84 18 ±29.5º Φ933/660×660 42.2 120 M85x1
STY-355-780-1090 1090 1177.90 18 ±29º Φ1103/780×780 44.24 120 M85x1
STY-355-800-1180 1180 1174.87 14 ±28º Φ1130/800x800 54.76 120 M85x1
STY-355-885-1280 1280 1164.59 14 ±25º Φ1251/885x885 59.4 120 M85x1
STY-355-900-1450 1450 1499.77 14 ±25º Φ1272/900×900 67.29 120 M85x1
STY-355-1070-1550 1550 1175.40 10 ±28º Φ1513/1070x1070 174.7 120 M85x1

STH Series 355nm F-theta Lenses (Fused Silica)

STH series f-theta lens

Model FLmm WDmm EPmm SAmax SARmm FSDµm ODxLmm Mirrors L2/L1, mm MT
STH-355-15-34-7 34 29 7 ±16º 15x15 4 90x44.9 12/10 M85x1
STH-355-13-34-7M79 34 29 7 ±16º 13x13 4 85x45.4 12/10 M79x1
STH-355-30-50-7 50 45 7 ±25º 30x30 5 90x68.3 13/12 M85x1
STH-355-50-63-7 63 83 7 ±25º 50x50 4 90x60.8 16/16 M85x1
STH-355-70-100-7 100 126 7 ±25º 70x70 10 90x54.6 13/15 M85x1
STH-355-80-130-8 130 151 8 ±25º 80x80 11 60x34.2 12/9 M55x1
STH-355-100-160-8M79 160 200 8 ±25º 100x100 15 90x50 16/16 M79x1
STH-355-100-160-8 160 200 8 ±25º 100x100 15 90x50 16/16 M85x1
STH-355-100-160-12 160 200 12 ±25º 100x100 10 90x50 15/20 M85x1
STH-355-114-170-8 170 207 8 ±28º 114x114 14 90x54.6 13/13 M85x1
STH-355-140-210-8M79 210 252 8 ±25º 140x140 17 90x50 13/12 M79x1
STH-355-140-210-8 210 252 8 ±25º 140x140 17 90x50 16/16 M85x1
STH-355-170-254-10 254 309 10 ±28º 170x170 17 90x50 16/16 M85x1
STH-355-170-254-10M55 254 309 10 ±28º 170x170 17 90x50 13/12 M55x1
STH-355-200-290-10 290 336 10 ±25º 200x200 20 90x50 13/12 M85x1
STH-355-220-330-8 330 373 8 ±25º 220x220 30 90x50 13/12 M85x1
STH-355-220-330-8M79 330 373 8 ±25º 220x220 30 90x50 13/12 M85x1
STH-355-250-380-8 380 442 8 ±25º 250x250 35 90x50 13/12 M85x1
STH-355-300-420-8 420 475 8 ±28º 300x300 38 90x50 13/12 M85x1
STH-355-330-470-8 470 531 8 ±28º 330x330 39 90x50 16/12 M85x1
STH-355-360-510-8 510 585 8 ±28º 350x350 42 90x50 13/12 M85x1
STH-355-450-650-8 650 710 8 ±28º 450x450 53 90x50 13/12 M85x1
STH-355-550-750-8 750 833 8 ±28º 550x550 74 90x50 16/16 M85x1
STH-355-600-840-8 840 924 8 ±28º 600x600 83 90x50 16/16 M85x1
STH-355-800-1090-8 1090 1178 8 ±25º 800x800 30 90x41 20/12 M85x1

Remark: M79x1mm or others available upon request.

STHT Series 355nm Tele-centric F-theta Lenses (Fused Silica)

Model FLmm WDmm E.P.mm SAmax SAR, mm FSDµm Mirrors L2/L1mm ODxLmm Max IA(o) MT
STHT-355-50-63-8 63 90 8 ±25º 50x50 8 16/20 90x60.8 1.5 M85x1
STHT-355-60-100-8 100 133 8 ±25º 60x60 11 14/20 120x83.8 1.5 M85x1
STHT-355-65-110-8 110 150 8 ±25º 65x65 11 14/22 120x85.8 1.5 M85x1
STHT-355-85-130-8 130 180 8 ±25º 80x80 15 14/22 129x117 1.5 M85x1
STHT-355-100-160-8 160 220 8 ±25º 100x100 13 14/22 155x129 1.5 M85x1

STYT Series 355nm Tele-centric F-theta Lenses (Fused Silica)

Model FLmm WDmm E.P.mm SAmax SAR, mm (round/square) FSDµm ODmm Max IA(o) MT
STYT-355-8-30 30 35.35 10 ±10.5º Φ8.5/8x8 1.95 90 1.8 M85x1
STYT-355-1-32 32 26.34 10 ±7.6º Φ8.5/1x1 3.2 90 2 M85x1
STYT-355-22-60 60 73.65 10 ±16º Φ31/22x22 11.5 90 1.26 M85x1
STYT-355-15-65 65 81.1 10 ±9.4º Φ21.2/15x15 4.2 94 1.8 M85x1
STYT-355-28-74 74 91.35 10 ±16º Φ40/28x28 4.5 90 1.0 M85x1
STYT-355-50.8-100 100 107.68 14 ±20.4º Φ71/50.8x50.8 6.69 120 1.6 M85x1
STYT-355-50-100 100 136.48 14 ±21º Φ70.7/50x50 5 120 0.5 M85x1
STYT-355-51-103 103 136.13 12 ±20.4’’ Φ72/51x51 5.58 100 1.93 M85x1
STYT-355-65-110 110 153.88 8 ±24º Φ92/65x65 8.9 120 1.6 M85x1
STYT-355-65-120 120 149.1 10 ±22.5º Φ92/65x65 8 118 1.5 M85x1
STYT-355-60-130 130 159.92 10 ±19º Φ85/60x60 8.45 120 0.98 M85x1
STYT-355-90-167 167 211.25 10 ±24º Φ127/90x90 10.8 130 5.28 M85x1
STYT-355-70-167 167 234.52 14 ±18º Φ99/70x70 7.8 140 0.48 M85x1
STYT-355-90-166.57 166.57 229.16 14 ±22º Φ127/90x90 7.7 159 <2 M85x1
STYT-355-101-175 175 247.49 10 ±24º Φ142/101x101 11.8 140 3.13 M85x1
STYT-355-172-295 295 426.75 14 ±23.7º Φ244/172x172 13 280 1.7 M85x1
STYT-355-173-330 330 681.58 14 ±20º Φ245/173x173 15.3 270 1.35 M85x1

STY-WT Series 355nm F-theta Lenses

Part No. FL (mm) SA (±°) SL (mm) SAR (mm) EP (mm) FSD (um) Length (mm) WD (mm)
STY-355-60-100-WT 100.0 25° 85.0 60x60 6.0 15.5 56.0 130.5
STY-355-76-108-WT 108.3 28.4° 107.7 76x76 6.0 - 49.0 146.0
STY-355-109-174-WT 173.9 25° 153.2 109x109 6.0 - 36.8 218.4
STY-355-112-160-WT 160.0 20° 158.0 112x112 7.0 13.5 50.0 177.79
STY-355-112-160Q-WT 160.0 29° 160.0 112x112 6.0 18 50.36 206.6
STY-355-155-250-WT 250.3 25.4° 219.2 155x155 10.0 - 61.0 309.6
STY-355-160-254-WT 254.0 25° 220.0 160x160 12.0 22.0 55.0 311.0
STY-355-130-269-WT 269.3 19.0° 183.0 130x130 4.0 - 47.0 276.1
STY-355-180-290-WT 290.0 25.5° 255.0 180x180 20.0 40.0 65.0 332.5
STY-355-250-410-WT 410.0 25° 354.0 250x250 10.0 7.0 46.8 488.2
STY-355-320-580-WT 580.0 22° 455.0 320x320 10.0 27.0 38.0 668.0
STY-355-350-580-WT 580.0 25° 495.0 350x350 15.0 24.0 46.0 689.0
STY-355-500-810-WT 810.0 28° 850.0 500x500 24.0 55.0 57.0 880.0
STY-355-440-831-WT 831.1 21.4° 624.5 440x440 14.0 - 62.5 983.2
STY-355-470-912-WT 919.2 20.8° 678.0 470x470 14.0 - 40.0 1032.0

STK Series 355nm Telecentric F-theta Lenses

Model

FL (mm)

EP (mm)

SAR
(mm)

SA
(deg)

WD
(mm)

FSD

(mm)

Tele-centricity

OD (mm)

Length (mm)

MT

STK-355-25-70

70

8

Φ36/25x25

 

78.6

10

<1.0o

 

 

M85x1

STK-355-50-103

103

9

Φ70/50x50

 

143

 

<1.2o

 

 

M85x1

STK-355-90-165

165

10

Φ127/90x90

 

226

11

<1.0o

 

 

M85x1

STK-355-118-220

220

14

Φ167/118x118

 

280

13

<1.5o

 

 

M85x1

STK-355-130-265

265

 

Φ186/130x130

 

353

10

<1.0o

 

 

M85x1

STK-355-160-255

255

14

Φ230.8/160x160

±27

344

19

<1.5o

278

218

M85x1

STK-355-180-320

320

14

Φ254/180x180

 

422

19

<1.5o

 

 

M85x1

STK-355-200-330

330

14

Φ283/200x200

±26

445

14

<1.5o

295

360

M85x1

STK-355-230-356

356

14

Φ325/230x230

 

498

22

>1.0 o

 

 

M85x1

Wavelength 266nm

STY-WT Series 266nm F-theta Lenses

Part No. FL (mm) SA (±°) SL (mm) SAR (mm) EP (mm) FSD (um) Length (mm) WD (mm)
STY-266-70-100-WT 100.0 28° 95.0 70x70 5.0 8.0 49.0 137.0
STY-266-110-160-WT 160.0 28° 160.0 110x110 5.0 10.0 36.7 200.0
STY-266-90-254-WT 254.0 18° 156.0 90x90 4.0 16.0 47.0 25.0

Achromatic F-theta Lenses

Achromatic f-theta lenses are designed to focus laser beam and visible light on the same focal planes of laser processing field and CCD monitoring field, which allows a full CCD monitoring during laser processing. STY Series 355nm Achromatic F-theta Lenses

Model FLmm WDmm E.P.mm Scan anglemaxi Scan areamm (round/square) Focus sizeµm ODmm MT
STY-355-635-50-140 140 100.29 10-12 ±14.5º Φ70.7/50x50 9.1 90 M85x1
STY-355-532-60-170 170 135 10 ±15º Φ80/60x60 11.1 105 M85x1
STY-355-633120-254 254 222.49 10 ±19º Φ170/120x120 16.49 105 M85x1

STY Series 532nm Achromatic F-theta Lenses

Model FLmm WDmm E.P.mm Scan anglemaxi Scan areamm (round/square) Focus sizeµm ODmm MT
STY-532-633-50-140 500 517.29 14 ±28º Φ495/350x350 34.8 105 M85x1

STY Series 915nm Achromatic F-theta Lenses

Model FLmm WDmm E.P.mm Scan anglemaxi SAR, mm (round/square) Focus sizeµm ODmm MT
STY-915-633-130-210 210 229.76 30 ±25º Φ184/130x130 12.06 132 M102x1;M121x1
STY-915-680-300-500 500 535.43 30 ±25º Φ424/300x300 27.9 140 M102x1

STY Series 1064nm Achromatic F-theta Lenses

Model FLmm WDmm E.P.mm SAmax SAR, mm (round/square) FSDµm ODmm MT
STY-1064-633-70-100 100 102.84 10 ±25º Φ100/70x70 19.5 90 M85x1
STY-1064-633-110-160-10 160 169.87 10 ±28º Φ155/110x110 31 105 M85x1
STY-1064-633-110-160-12 160 172.47 12 ±28º Φ156/110x110 25.9 105 M85x1
STY-1064-633-100-170 170 179.99 30 ±25º Φ150/100x100 11 140 M112x1;M102x1;M95x1
STY-1064-633-130-210 210 232.31 30 ±25º Φ185/145x130 13.65 140 M112x1;M102x1;M95x1
STY-1064-633-175-254 254 261.75 10 ±25º Φ247/175x175 49.4 90 M85x1
STY-1064-633-157-254 254 269.27 30 ±25º Φ222/157x157 30 140 M112x1;M102x1;M95x1
STY-1064-468-176-255 255 262.43 10 ±28º Φ248/176x176 49.4 90 M85x1
STY-1064-633-180-260 260 253.45 15 ±28º Φ255/180x180 33.75 135 M85x1
STY-1064-633-200-330 330 356.13 30 ±25º Φ283/200x200 21.4 140 M112x1;M102x1;M95x1
STY-1064-633-260-420 420 455.42 30 ±25º Φ368/260x260 27.3 140 M112x1;M102x1;M95x1

Scan Lenses for Laser Cleaning

The scan lenses are designed for laser cleaning. These portable f-theta lenses have the advantages on small size and light weight and thus used for hand-hold laser cleaning systems.

Part number FLmm WDmm EPmm SAmax SAR, mm (square) FSDµm ODmm MT
STY-405-200x1-330Q 330 401.37 10 ±17.5º 200x10 24.5 75x21x44.5 D4.5x285x1
STY-1030-1080-70X8-160 160 204.03 20 ±12.5 º 70x8 15.57 90x49x75 D4.5x285x1
STY-1070-650-80X5-160Q 160 199.9 10 ±14.7 º 80x5 31.15 63.5x21x42.7 D4.5x285x1
STY-1030-1080-80X10-255 255 320.34 20 ±10 º 80x10 30 90x49x82 D4.5x285x1

If you can not find a suitable f-theta lens, please download the form here and email us your filled form. We can custom-desing and make the lenses according to your specific requirements.

1064nm F-theta Lenses, 532nm F-theta Lenses, 10.6um F-theta Lenses, Basics of F-theta Lens

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