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PYRITE F4.0/80 mm 
C-Mount liquid lens
 


Key features

  • Focus tunable liquid lens included
  • Large working distance range
  • Fast focus within milliseconds
  • Large image circle
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PYRITE Liquid focus lens F4.0 80mm C-Mount

PYRITE LF liquid lenses combine a proven Schneider-Kreuznach lens with Optotune's Focus Tunable Lens EL-16-40-TC-5D, offering fast focus within milliseconds and a large working distance range. Available in C-Mount and TFL-Mount versions, they provide versatile imaging solutions with adjustable extension tubes to ensure optimal performance across various applications.

This lens combines an approved Schneider-Kreuznach lens and one of Optotunes Focus Tunable Lenses EL-16-40-TC. It comes in two versions for C-Mount and TFL-Mount. To achieve a wide range of working distance the lens can be combined with extension tubes of 5 mm or 8 mm so the liquid lens can always be used in its optimal operating range. Typical applications: Machine Vision, package sorting, logistic, bar code reading, and quality control.

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Product brochure 2024
Product brochure 2024

Technical specifications: PYRITE F4.0/80 mm C-Mount liquid lens

Type [standard]C-LF
ID [standard]1102609
InterfaceC-Mount
Focal length [mm]80
Aperture range F/#F/4 ... F/45
Numerical aperture [object | image]- | 0.13
Maximum sensor size [mm]24
Maximum angle of view [°]26
Recommended magnification range-0.2 ... 0
Recommended working distance
range [mm]		493 ... ∞
Minimum working distance without
extension tubes [mm]		-
Filter thread [mm]M37 x 0.75
Storage temperature [°C]-25 … +70
Net weight [g]-
Additional infoLiquid focus tunable lens magnification
f'eff [mm]71.40 ... 85.16
SF [mm]40.80 ... 73.86
S'F' [mm]34.71 ... 41.81
HH' [mm]-4.59 ... 1.21
ß'P1.17 ... 0.98
SEP [mm]20.29
S'AP [mm]-48.73 ... -41.25
Σd [mm]62.70

Lens specifications glossary

 

Specification Description
Focal length Nominal focal length
Aperture range F/# Image space F-number range for infinity focus position
Numerical aperture Maximum real numerical aperture (depending on recommended magnification range either for infinity or respective fixed magnification)
Max. sensor size Image circle diameter
Max. angle of view Angle of view associated with maximum sensor size (depending on recommended magnification range either for infinity or respective fixed magnification)
Rec. magnification range Magnification range as recommended by Schneider-Kreuznach
Rec. working distance range Working distance, i.e. distance between object and first mechanical element, associated with recommended magnification range
Net weight weight of unpacked lens without lens cap
f'eff Effective focal length
SF Distance between vertex of first lens surface and object space focal point
S'F' Distance between vertex of last lens surface and image space focal point (back focal distance at infinity)
HH' Distance between principal planes
ß'P Pupil magnification (= exit pupil diameter / entrance pupil diameter)
SEP Distance between vertex of first lens surface and entrance pupil
S'AP Distance between vertex of last lens surface and exit pupil
Σ d Distance between vertices of first and last lens surface
s'A Flange focal distance (in air) for infinite object distance (depending on recommended magnification range either for infinity or respective fixed magnification)
ß' Magnification (= image size / object size), negative value because image is inverted
OO' Distance between object and image
Info  Unless otherwise stated all dimensions in this data sheet are in mm

 

Picture of the lens

PYRITE Liquid focus lens F4.0 80mm C-Mount

 

Technical drawing

pyrite-f-4-0-80mm-c-mount-1102609-technical-drawing.jpg

 

Relative illumination vs. image height

pyrite-f-4-0-80mm-c-mount-1102609-relative-illumination-vs-image-height.jpg

 

Distortion vs. image height

pyrite-f-4-0-80mm-c-mount-1102609-distortion-vs-image-height.jpg

 

Transmittance vs. wavelength

pyrite-f-4-0-80mm-c-mount-1102609-transmittance-vs-wavelength.jpg


MTF charts

 

Spectrum name VIS
Wavelengths [nm] 425 475 525 575 625 675
Rel. weights [%] 8 16 23 22 19 13
pyrite-f-4-0-80mm-c-mount-1102609-mtf-charts.jpg

 

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+49 (0) 671 601 0

 

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