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Product Descriptions

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Telecentric lens

Telecentric Lens is designed to prevent errors from perspective. There are no size variations when a subject is in depth of focus (DOF). For this reason, Telecentric Lens is used in high-precision measuring applications such as Machine Vision and Metrology.

Our Telecentric lenses are various in working distance and magnification applying to various type of sensors. We design and produce Telecentric lenses at the specific request of the customer.

This lens is mostly used in alignment mark inspection and measurement.
Al Telecentric lenses in L-Fusion Optics Inc. have follow feature

· No magnification changes in Depth of Focus (DOF)
· Low distortion
· Elimination of perspective error
· High image resolution
· High Telecentricity

Image comparison of Telecentric and Conventional Lens

  • [ Object ]

  • [ Telecentric Lens ]

  • [ Conventional Lens ]

+Coaxial Type

Telecentric lens List
Model View Magnification W.D (mm) Resolution (um) N.A.
(object side)		 Effective
Fno		 D.O.F.
(um)		 Telecentric angle Optical dist. Sensor Size Mount Download
LFTCO.5X-43C-8 0.5X 43 10.82 0.031 8 2.56mm <0.04˚ <0.03% 1/2 C
LFTC1.0X-40C-8 1.0X 40 6.21 0.054 9.26 741 <0.03˚ <0.08% 1/2 C
LFTC2.0X-40C-8 2.0X 40 4.79 0.07 14.28 286 <0.04˚ <0.04% 1/2 C
LFTC3.0X-40C-8 3.0X 40 4.79 0.07 21.43 190 <0.04˚ <0.26% 1/2 C
LFTC4.0X-40C-8 4.0X 40 4.79 0.07 28.57 143 <0.02˚ <0.30% 1/2 C
LFTC5.0X-40C-8 5.0X 40 4.19 0.08 31.25 100 <0.02˚ <0.22% 1/2 C

+Non-Coaxial Type

Telecentric lens List
Model View Magnification W.D (mm) Resolution (um) N.A.
(object side)		 Effective
Fno		 D.O.F.
(um)		 Telecentric angle Optical dist. Sensor Size Mount Download
LFTC0.5X-40-6 0.5X 40 10.17 0.033 7.58 2.42mm <0.04˚ <0.05% 1/3 C
LFTC0.5X-43-8 0.5X 43 10.82 0.031 8 2.56mm <0.04˚ <0.03% 1/2 C
LFTC1.0X-40-8 1.0X 40 6.21 0.054 9.26 741 <0.03˚ <0.08% 1/2 C
LFTC2.0X-40-8 2.0X 40 4.79 0.07 14.28 286 <0.04˚ <0.04% 1/2 C
LFTC3.0X-40-8 3.0X 40 4.79 0.07 21.43 190 <0.04˚ <0.26% 1/2 C
LFTC4.0X-40-8 4.0X 40 4.79 0.07 28.57 143 <0.02˚ <0.30% 1/2 C
LFTC5.0X-40-8 5.0X 40 4.19 0.08 31.25 100 <0.02˚ <0.22% 1/2 C
L-Fusion Optics Inc. | CEO : Park Jin Joon | Business license number : 314-86-48076
Head office : (Room 515) 187, Techno 2-ro, Yuseong-gu,Daejeon, Republic of Korea
Research Institute : (Room 514) 187, Techno 2-ro, Yuseong-gu,Daejeon, Republic of Korea
Telephone : 042-385-4900 | Fax : 042-385-4916 | E-mail : sales@lfoptics.com
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