Telec
en
tr
ic L
enses
92
http://machinevision.navitar.com
• email: info@navitar.com
working
distance
diameter
f
53.6 (2.11)
4.0 (.16)
f
29.5 (1.16)
1-32 UNF (C-mount)
clamp in this area
INVARIGON P/N
LGU
length
dimensions in mm (in.)
1
The maximum object dimensions shown in the table are 90% of the theoretical maximum dimensions, providing a safety factor for magnifi cation and alignment errors.
2
Image-side working f/# with lens aperture fully open. For combinations with teleconverters, the minimum image-side f-number is increased by the teleconverter
magnifi cation.
3
Lenses operated at smaller f/# may show reduced resolution, especially near the edge of the fi eld of view.
4
Depth of fi eld is calculated at f/11 for lenses with minimum operating f/# < f/16 (f/22 for all others) and for 30-µm allowable blur at the image (camera) plane.
Note: Distortion is less than 1.2% for all lenses. Contact Navitar for specifi c
distortion characteristics for a particular lens.
Single-Sided Telecentric
Part Number
Mag.
(nominal)
Length
Diameter
Working
Distance
Maximum Object Dimensions (in)
1
Min f#
2
Min.
Operating
f#
3
Depth of
Field
(in.)
4
mm.
in.
mm.
in.
mm.
in.
1/3” CCD
1/2” CCD
2/3”CCD
59 LGU 013
0.13X
217
8.5
80
3.2
190
7.4
1.02 x 1.36
1.36 x 1.81
N/A
1.4
4
1.66
59 LGU 016
0.16X
176
6.9
70
2.8
150
6.0
0.82 x 1.09
1.09 x 1.45
N/A
1.4
5.6
1.06
59 LGU 018
0.18X
154
6.1
61
2.4
130
5.2
0.71 x 0.95
0.95 x 1.27
N/A
1.4
5.6
0.81
59 LGU 022
0.22X
170
6.7
70
2.8
150
6.0
0.59 x 0.78
0.78 x 1.04
1.07 x 1.43
1.6
8
0.54
59 LGU 025
0.25X
148
5.8
61
2.4
130
5.2
0.51 x 0.68
0.68 x 0.91
0.94 x 1.25
1.6
8
0.42
59 LGU 029
0.29X
126
4.9
54
2.1
110
4.4
0.44 x 0.59
0.58 x 0.78
0.80 x 1.07
1.6
8
0.31
59 LGU 031
0.31X
171
6.7
70
2.8
150
6.0
0.41 x 0.54
0.54 x 0.72
0.74 x 0.99
2.3
8
0.27
59 LGU 036
0.36X
149
5.9
61
2.4
130
5.2
0.36 x 0.47
0.48 x 0.63
0.66 x 0.87
2.3
8
0.20
59 LGU 042
0.42X
126
5.0
54
2.1
110
4.4
0.31 x 0.41
0.41 x 0.54
0.56 x 0.74
2.3
8
0.15
59 LGU 050
0.50X
105
4.1
54
2.1
90
3.6
0.26 x 0.34
0.34 x 0.45
0.47 x 0.62
2.3
11
0.10
Telecentric performance (<0.2° chief ray angle over
the entire object fi eld) allows precise gauging of
3-dimensional objects.
• Large selection of magnifi cations covers most applications.
• Lockable aperture adjusts to select the required
depth of fi eld.
• Fine focus adjustment provides sharper images.
Rugged single-piece design stands up to harsh
•
industrial environments.
High-performance multi-layer coatings provide the
•
high-
est image clarity, especially for back-lit applications.
Standard C-mount camera interface.
•
Features
The Invarigon-R™ family of gauging lenses provides telecentric imaging with a wide selection of magnifi cations. Invarigon-R™
gauging lenses are the most cost-eff ective choice for critical inspection and metrology imaging applications.
Invarigon-R
™
Lens Specifi cations
Invarigon-R™
Teleconverter accessories can be used with select
Invarigon-R
™
lenses (59 LGU 031, 59 LGU 036,
59 LGU 042, 59 LGU 050) to increase magnifi cation by
a factor of 1.5x or 2.0x depending on the lens combina-
tion. Teleconverters cannot be used with certain types of
3-CCD color cameras.
Accessory Note:
