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telecentric fixed focal length resource guide 128 +44 (0) 1904 788600 | Edmund Optics® Specialty Lenses
• Helical Focus Movement
• Click-Stop Free Iris Setting
• External Iris & Focus Lock
Designed for extremely low light situations, the high aperture (f/0,95) of these lenses provides excellent
image quality even under low light conditions. These lenses are designed to cover the visible spectrum
(400 - 700 nm). Locking focus and iris prevent change in stressful environments. The front filter thread allows
the use of color filters to increase contrast, for increased accuracy of sorting, picking or measuring
applications, or reducing glare with polarizing filters.
100
90
80
70
60
50
40
30
20
10
Typical Transmission
• Simultaneously Images Top and Sides of an Object
• Can be used as a Long Working Distance Borescope
• Ideal for Component Inspection
TECHSPEC® Hypercentric Lenses provide a converging view of an object, focusing on the top and surrounding
sides simultaneously, and are used to eliminate the need for multiple camera and lens setups in machine
vision inspection or identification applications. TECHSPEC® Hypercentric Lenses are ideal for inspecting
parts such as pharmaceutical vials, batteries, or automotive parts. These lenses provide a conical-shaped
working area, and are optimized for use with monochromatic light. When 0,5 - 1,5 mm spacers are positioned
between the lens and camera, these lenses can also be used as long working distance borescopes, simultaneously
focusing on the internal walls and bottom surface of an object. The borescope working distance is the
area past the convergence point (CP) of the standard working area. The use of larger spacers increases the
borescope focus distance. Note: All specifications are defined at 660 nm.
TECHSPEC® Hypercentric Lenses *Circular Image is Produced on Maximum Sensor Format
Sensor Format (Vertical)* 1/3" 1/2" 2/3"
Convergence Point Distance (CPD) (mm): 28,2 28,2 28,2
T (Near Aperture) (mm): 37,2 37,2 37,2
B (Far Aperture) (mm): 9,4 10,4 11,5
Max. View Angle (MVA) (˚): 33 33 33
Max. Working Distance (WD) (mm): 21,1 20,1 19,5
Max. Depth of Field (mm): 18 14 9,5
Dimensions (Dia. x L) (mm): 55,9 x 167 55,9 x 160 55,9 x 158
Stock No. #86-584 #86-585 #86-586
Price €1.840,00 €1.880,00 €1.920,00
Schneider Fast C-Mount Lenses
Schneider Fast C-Mount Lenses
Focal Length
(mm)
Max. Sensor
Format
Aperture
f/#
Image of a dice using a Hypercentric Lens
Angular
FOV (°)
Geometric
Distortion (%)
FOV at
Min. WD (mm)
Min. Working
Distance (mm)
Filter
Thread
Stock No. Price
25,0 1" f/0,95 - f/11 20 < -3 76,8 300 M39 x 0,5 #59-833 €2.138,00
0
200 250 300 350 400 450 500 550 600 650 700 750 800
Wavelength (nm)
Transmission (%)
— #57-542
— #57-543
— Ordinary Lens
• Transmission from 230 - 1200 nm
• Compact Size for Easy System Integration
• Ideal for Use with Mounted Color Filters
UV Fixed Focal Length Lenses are ideal for use in a variety
of applications, including the surface inspection of circuits
or fiber optics, quality control of semiconductor materials,
or for locating oil contamination or leakage. Additional applications
include forensic, pharmaceutical, or biomedical
imaging, fluorescence, security, or counterfeit detection.
UV Fixed Focal Length Lenses are manufactured from
fused silica elements to provide excellent transmission
from the ultraviolet to the near-infrared. Note: These
lenses are not corrected for chromatic aberration, and require
refocusing when using an illumination source with a
spectral bandwidth greater than 10 nm. A monochromatic
light source and narrow bandpass filter are recommended
to improve the overall performance of the lens. The 78
mm lens (#57-543) has a removable C-mount adapter, enabling
it to be used with M42 x 0,75 (T2) mounts.
UV Fixed Focal Length Lenses
UV Fixed Focal Length Lenses *Horizontal Field of View; calculated for 1/2" format sensor
Focal Length
(mm)
Max Sensor
Format
Aperture
f/#
Angular* FOV
(Horiz.)
FOV* at
Min. WD
Minimum
WD
Spectral
Range (nm)
Dimensions (mm) Weight
(g)
Filter Thread
(Dia. x Pitch) Stock No. Price
Max Dia. Length
25 1" f/2,8 - f/16 14,0° 58,9 mm 0,23 m 230 - 1200 30,0 25,4 33 M25,5 x 0,5 #57-542 €1.570,00
78 1" f/3,8 - f/16 4,4° 36,1 mm 0,44 m 230 - 1200 62,5 109,3 446 M49,0 x 0,75 #57-543 €3.880,00
Hypercentric Lenses
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