Navitar 0.25x+Precise Eye+0.5x, 0.25x+Precise Eye+0.67x, 0.25x+Precise Eye+1.0x, 0.25x+Precise Eye+1.33x, 0.25x+Precise Eye+2.0x Brochure & Specs
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Precise Eye
High Mag Fixed Lenses
• High resolution, diffraction-limited f/4.5 optical quality
for high precision measurement and inspection.
• Long working distance makes illumination and handling
easier.
• Compact size.
• Coaxial lighting available for shadow free illumination.
• Compatible with high-magnification infinity corrected
objectives (5X, 10X, 20X, 50X).
• Mechanically stable for the most demanding vibration
environments.
• Modular design for flexibility.
• Optics attach to any C-mount camera.
• Short tube length (approx. 4 inches) and small diameter
(1.25 inches).
• Fixed and/or 3 mm fine focus models available.
• High transmission (>70%) over the visible to near IR
spectrum.
• Covers magnification factors between 0.22X and 91X.
Precise Eye High Mag Fixed Lenses
• Working distance ranges from 13 mm to 370 mm.
Precise Eye
Not Your Standard Video Lens
There are a growing number of
video imaging applications in
which a single, constant magnification and a fixed working
distance are required. Navitar has
responded to this need with our
Precise Eye series of lenses.
Precise Eye lenses are designed to
provide superior optical performance and high vibration stability over standard C-mount video
lenses. They are optically precise
and rugged to meet the demanding needs of fixed, high magnification machine vision, metrology,
biomedical, fiber optic, and electronic imaging applications.
Precise Eye lenses incorporate
Navitar’s precision engineering
and quality construction, result-
Precise Eye High Mag Fixed Lenses
ing in images that are sharp, high
resolution and optically corrected
for remarkable image quality.
Precision
Precise Eye lenses provide high
resolution and low distortion. The
resolution capability (the ability to
distinguish minute detail) exceeds
that of standard C-mount video
lenses and most other competitive
micro optics. Precise Eye lenses
from Navitar yield image resolution
as high as 220 lp/mm.
Contrast
The lenses in the Precise Eye series not only resolve finer details,
but provide higher contrast levels
(the difference between light and
dark features) over standard video
optics. A lens that produces an
image with high contrast will
increase the performance of an
image processing system.
Transmission
Precise Eye lenses are supplied
with a high quality, broad band,
high efficiency, anti-reflection
coating that is optically corrected
for the spectral range of 400nm
– 1000nm which allows each
lens to image light from NIR laser
diode and NdYAG lasers.
Working Distance
Precise Eye lenses offer high magnification at long working distances
in order to provide the necessary
space required for equipment,
specimen handling and lighting.
Flexible by Design
The Precise Eye series of lenses
is designed on a modular basis.
This interchangeable design,
combined with a wide selection
of available attachments, fixed
or 3 mm fine focus, allows you
to easily meet your exact needs.
Lighting
Fiber optic, LED, co-axial, ring
light or other light sources can
be selected for specific applications.
Distortion
Precise Eye lenses can attain
distortion of less than 0.14%.
Selecting the Correct Lens
Simply choose the block from
the Magnification Matrix that
most closely approximates your
requirements.
Precise Eye Versus Video Lenses
When selecting a lens for high precision applications, it is
important to differentiate between standard video lenses and
Navitar’s Precise Eye series. Video lenses were originally
designed for very low magnification, surveillance applications at working distances of greater than three feet (approximately 1 meter). They were never intended for the high
vibration and high magnification environments of the factory
floor. The usage of extension tubes and close-up diopter
lenses enable a standard Video lens to work close-up, but this
increases distortion and produces loss of resolution.
On the other hand, the Precise Eye series is designed to
provide high resolution, diffraction-limited performance for
56
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high magnification fixed applications. The Navitar Precise
Eye series covers magnification factors between 0.22X and
91.0X. The working distance ranges from 13 mm up to
370 mm.
Precise and robust, they are used in machine vision and
biomedical applications requiring a fixed field of view,
high magnification and high quality image from a long
working distance. They provide a fixed aperture, fixed
focus and fixed working distance which ensures robust and
repeatable performance in your demanding environment.
Fine focus mechanisms are available on two models.
Precise Eye system dimensions can be found on
our website at www.machinevision.navitar.com
Precise Eye
Precise Eye Field of View Matrix (in mm at nominal working distance)
Lens Attachment W.D. (mm)
0.25X
0.018 N.A.
DOF 1.59 mm
1-6044
0.5X
0.035 N.A.
DOF 0.40 mm
1-60110
0.75X
0.054 N.A.
DOF 0.18 mm
1-60111
356
(nominal)
300-370
(1) W.D. Range
175
(nominal)
170-190
(1) W.D. Range
113
(nominal)
110-120
(1) W.D. Range
92
None
0.070 N.A.
DOF 0.10 mm
1.5X
0.104 N.A.
DOF 0.04 mm
1-60112
2.0X
0.141 N.A.
DOF 0.02 mm
1-60113
(1) Working distance range when using 3 mm fi ne focus. Field of view will change with shorter or longer working distances.
(nominal)
90-93
(1) W.D. Range
51
(nominal)
49-51
(1) W.D. Range
36
(nominal)
35-36
(1) W.D. Range
Camera Format &
Parameters
Mag. 0.22X 0.30X 0.45X 0.60X 0.90X
Field 1/4” 14.2(h) 10.6(v) 10.7(h) 8.0(v) 7.1(h) 5.3(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v)
Field 1/3” 21.4(h) 16.0(v) 15.9(h) 11.9(v) 10.7(h) 8.0(v) 8.0(h) 6.0(v) 5.3(h) 4.0(v)
Field 1/2” 28.4(h) 21.4(v) 21.2(h) 15.9(v) 14.2(h) 10.7(v) 10.6(h) 8.0(v) 7.1(h) 5.3(v)
Field 2/3” 39.2(h) 29.4(v) — 19.6(h) 14.7(v) 14.7(h) 11.0(v) —
Mag. 0.45X 0.60X 0.90X 1.2X 1.8X
Field 1/4” 7.2(h) 5.2(v) 5.3(h) 4.0(v) 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v)
Field 1/3” 10.6(h) 8.0(v) 8.0(h) 6.0(v) 5.3(h) 4.0(v) 4.0(h) 3.0(v) 2.7(h) 2.0(v)
Field 1/2” 14.2(h) 10.6(v) 10.6(h) 8.0(v) 7.1(h) 5.3(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v)
Field 2/3” 19.6(h) 14.6(v) — 9.8(h) 7.3(v) 7.3(h) 5.5(v) —
Mag. 0.7X 0.90X 1.4X 1.8X 2.7X
Field 1/4” 4.6(h) 3.6(v) 3.6(h) 2.7(v) 2.3(h) 1.8(v) 1.8(h) 1.3(v) 1.2(h) 0.9(v)
Field 1/3” 7.2(h) 5.4(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v)
Field 1/2” 9.4(h) 7.2(v) 7.1(h) 5.3(v) 4.7(h) 3.6(v) 3.6(h) 2.7(v) 2.4(h) 1.8(v)
Field 2/3” 13.0(h) 9.8(v) — 6.5(h) 4.9(v) 4.9(h) 3.7(v) —
Mag. 0.9X 1.2X 1.8X 2.4X 3.6X
Field 1/4” 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v)
Field 1/3” 5.4(h) 4.0(v) 4.0(h) 3.0(v) 2.7(h) 2.0(v) 2.0(h) 1.5(v) 1.3(h) 1.0(v)
Field 1/2” 7.2(h) 5.4(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v)
Field 2/3” 9.8(h) 7.4(v) — 4.9(h) 3.7(v) 3.7(h) 2.8(v) —
Mag. 1.35X 1.8X 2.7X 3.6X 5.4X
Field 1/4” 2.4(h) 1.8(v) 1.8(h) 1.3(v) 1.2(h) 0.9(v) 0.9(h) 0.7(v) 0.6(h) 0.4(v)
Field 1/3” 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v)
Field 1/2” 4.8(h) 3.6(v) 3.6(h) 2.7(v) 2.4(h) 1.8(v) 1.8(h) 1.3(v) 1.2(h) 0.9(v)
Field 2/3” 6.6(h) 4.8(v) — 3.3(h) 2.4(v) 2.4(h) 1.8(v) —
Mag. 1.8X 2.4X 3.6X 4.8X 7.2X
Field 1/4” 1.8(h) 1.4(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v) 0.7(h) 0.5(v) 0.5(h) 0.3(v)
Field 1/3” 2.6(h) 2.0(v) 2.0(h) 1.5(v) 1.3(h) 1.0(v) 1.0(h) 0.8(v) 0.7(h) 0.5(v)
Field 1/2” 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v)
Field 2/3” 4.8(h) 3.6(v) — 2.4(h) 1.8(v) 1.8(h) 1.4(v) —
0.5X Adapter
1-62088
0.67X Adapter
1-61453
1.0X Adapter
1-61445
1.33X Adapter
1-61448
2.0X Adapter
1-61450
Precise Eye High Mag Fixed Lenses
Phone: 800-828-6778 or 585-359-4000 • Fax 585-359-4999
57
Adapter Tubes
Ultra Body Tubes Right Angle Body Tubes
Infinity Corrected Objectives
0.67X
1-6 1453
1.0X
1-6 1445
1.33X
1- 61448
2X NIRA
1-62263
2.0 X
1-61450
2X Rt. Angle
1-6 2214
Non F.F.
1-61517
3mm F.F.
1-61521
No n F. F. w/ Coa x.
1-62840
3mm F.F & Coax.
2 Phase
Stepper
1-62304 **
3mm F.F.
2 Pha se
Stepper
1-62079 **
M26 x 36T
3-60160 *
0.800 x 36T RMS
3-6 0187 *
5X
1-60226
10X
1-60227
20X
1-60228
50X
1-6 0229
Rt. Angle
w/ 3mm F.F. & Coax.
1-61537
Rt. Angle
w/ 3mm F.F.
1-61535
Rt. Angl e
Non F.F
1-61530
Rt. Angle
Fixed Ass'y w/ Coax
1-6 2709
0.5X
1-6 2088
1.33X Rt. Angle
1-62539
* Included with ULTRA PRECISE EYE
** Items are Special Order (Contact Navitar for Additional Information).
3mm F.F. & Coax.
1-6 1522
Ultra Motorized Body Tubes
Mitutoyo
Motic
5X
1-62828
10X
1-62829
20X
1-62030
Precise Eye System Diagram
Precise Eye High Mag Fixed Lenses
58
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Lens Attachments
Adapter Plates
0.25X
1-6044
0.5X
1-6 0110
0.75X
1-60111
1.5X
1-6 0112
2X
1-60113
Non F.F.
1-61456
3mm F.F.
1-6 1449
3m m F.F.
w/ Coax.
1-61446
Mounting Clamp
1-61510
(76mm)
1-6 1662
(84mm)
1-6 1663
3mm F.F.
w/ Aperture
1-6 2473
3mm F. F.
w/ Rt. Ang. Coax
1-6 2247
3mm F.F.
Encoded/Servo
1-62691 **
3mm F.F. w/ coax
2 Phase
Stepper
1-62302 **
Non F. F.
w/ Coax
1-6 2707
Polarizer/Analyzer
w/ 3mm F.F.
1-6 1817
3mm F.F.
2 PhaseStepper
w/ HE Limits
1-62693**
Rev. 031708
Precise Eye High Mag Fixed Lenses
Phone: 800-828-6778 or 585-359-4000 • Fax 585-359-4999
59
Key Terms for Understanding the Matrix Charts
Precise Eye Performance Specifications
Precise Eye Combinations
Lens Attachment + Precise Eye + Rear Adapter
0.25x + Precise Eye + 0.5x 356 0.23x 0.018 9.4 1.59 2.1
0.25x + Precise Eye + 0.67x 356 0.30x 0.018 9.4 1.59 2.8
Precise Eye High Mag Fixed Lenses
60
0.25x + Precise Eye + 1.0x 356 0.45x 0.018 9.4 1.59 4.2
0.25x + Precise Eye + 1.33x 356 0.60x 0.018 9.4 1.59 5.6
0.25x + Precise Eye + 2.0x 356 0.90x 0.018 9.4 1.59 8.4
0.5x + Precise Eye + 0.5x 175 0.45x 0.035 4.7 0.40 2.1
0.5x + Precise Eye + 0.67x 175 0.60x 0.035 4.7 0.40 2.8
0.5x + Precise Eye + 1.0x 175 0.90x 0.035 4.7 0.40 4.2
0.5x + Precise Eye + 1.33x 175 1.20x 0.035 4.7 0.40 5.6
0.5x + Precise Eye + 2.0x 175 1.80x 0.035 4.7 0.40 8.4
0.75x + Precise Eye + 0.5x 113 0.68x 0.054 3.1 0.18 2.1
0.75x + Precise Eye + 0.67x 113 0.90x 0.054 3.1 0.18 2.8
0.75x + Precise Eye + 1.0x 113 1.35x 0.054 3.1 0.18 4.2
0.75x + Precise Eye + 1.33x 113 1.80x 0.054 3.1 0.18 5.6
0.75x + Precise Eye + 2.0x 113 2.70x 0.054 3.1 0.18 8.4
1.0x + Precise Eye + 0.5x 92 0.90x 0.071 2.3 0.10 2.1
1.0x + Precise Eye + 0.67x 92 1.21x 0.071 2.3 0.10 2.8
1.0x + Precise Eye + 1.0x 92 1.80x 0.071 2.3 0.10 4.2
1.0x + Precise Eye + 1.33x 92 2.39x 0.071 2.3 0.10 5.6
1.0x + Precise Eye + 2.0x 92 3.60x 0.071 2.3 0.10 8.4
1.5x + Precise Eye + 0.5x 51 1.35x 0.104 1.6 0.04 2.1
1.5x + Precise Eye + 0.67x 51 1.81x 0.104 1.6 0.04 3.0
1.5x + Precise Eye + 1.0x 51 2.70x 0.104 1.6 0.04 4.4
1.5x + Precise Eye + 1.33x 51 3.59x 0.104 1.6 0.04 5.8
1.5x + Precise Eye + 2.0x 51 5.40x 0.104 1.6 0.04 8.6
2.0x + Precise Eye + 0.5X 36 1.80x 0.141 1.2 0.02 2.1
2.0x + Precise Eye + 0.67x 36 2.41x 0.141 1.2 0.02 2.8
2.0x + Precise Eye + 1.0x 36 3.60x 0.141 1.2 0.02 4.2
2.0x + Precise Eye + 1.33x 36 4.79x 0.141 1.2 0.02 5.6
2.0x + Precise Eye + 2.0x 36 7.20x 0.141 1.2 0.02 8.4
Assumptions:
1. Minimum resolvable feature size is half of the threshold line pair limit. Calculation = 1/(3000 x Lens N.A.)
2. Matching pixel size is that which will permit the minimum feature size to overlap two pixels. Calculation = 1/2(Feature Size x System Magnifi cation)
3. If the matching pixel size is greater than the camera pixel size, the system is “lens limited.”
4. If the matching pixel size is less than the camera pixel size, the system is “camera limited.”
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Depth of Field
The distance allowing acceptable image
definition to be maintained without
refocusing.
Magnification
A measure of the apparent difference in
size between the object and image.
Matching Pixel Size
Matching pixel size is that which will
permit the minimum feature size to
overlap two pixels.
N.A. Image Side
Measurement at the image point of the
largest cone of light rays that are entering the optical system.
W.D. Magnifi cation N.A.
Object Side
N.A. Object Side
Measurement at the object point of
the largest cone of light rays that are
entering the optical system.
Resolvable Features (microns)
Measurement of lens system’s ability
to image closely spaced points, lines
and object surfaces as separate entities.
Working Distance (W.D.)
Clearance between object and lowest
mechanical part of the system.
Resolve Limits
(microns)
Depth
of Field
(mm)
Required
Matching Pixel
Size (microns)
Ultra Precise Eye
Navitar also offers a variety of
Ultra Precise Eye systems ideal for
high magnification applications.
The advanced design produces
outstanding contrast and
precision, while providing higher
resolution and magnification
than the standard Precise Eye.
These systems incorporate infinity
corrected objectives to provide
long working distances and
excellent edge flatness and clarity.
The Ultra Precise Eye is also
available with fine focus (1-61521)
or with fine focus and co-axial
illumination (1-61522).
Ultra Precise Eye Magnification Matrix (in mm)
Infi nity
Corrected
Objective
(Mitutoyo)
5X
0.14 N.A.
1-60226
10X
0.28 N.A.
1-60227
20X
0.42 N.A.
1-60228
50X
0.55 N.A.
1-60229
W.D .
(mm)
34
33
20
13
Camera
Format &
Parameters
Mag. 2.27X 3.05X 4.55X 6.10X 9.10X
Field 1/4” 1.4(h) 1.06(v) 1.05(h) 0.79(v) 0.70(h) 0.53(v) 0.52(h) 0.39(v) 0.35(h) 0.26(v)
Field 1/3” 2.12(h) 1.58(v) 1.57(h) 1.18(v) 1.06(h) 0.79(v) 0.79(h) 0.59(v) 0.53(h) 0.40(v)
Field 1/2” 2.82(h) 2.12(v) 2.10(h) 1.58(v) 1.41(h) 1.06(v) 1.05(h) 0.79(v) 0.70(h) 0.53(v)
Field 2/3” — — 1.93(h) 1.46(v) 1.44(h) 1.08(v) —
Mag. 4.55X 6.1X 9.10X 12.2X 18.2X
Field 1/4” 0.70(h) 0.52(v) 0.52(h) 0.39(v) 0.35(h) 0.26(v) 0.26(h) 0.20(v) 0.18(h) 0.13(v)
Field 1/3” 1.06(h) 0.80(v) 0.79(h) 0.59(v) 0.53(h) 0.40(v) 0.39(h) 0.30(v) 0.26(h) 0.20(v)
Field 1/2” 1.40(h) 1.06(v) 1.05(h) 0.79(v) 0.70(h) 0.53(v) 0.52(h) 0.39(v) 0.35(h) 0.26(v)
Field 2/3” — — 0.97(h) 0.73(v 0.72(h) 0.54(v) —
Mag. 9.1X 12.2X 18.2X 24.4X 36.4X
Field 1/4” 0.36(h) 0.26(v) 0.26(h) 0.20(v) 0.18(h) 0.13(v) 0.13(h) 0.10(v) 0.09(h) 0.07(v)
Field 1/3” 0.52(h) 0.40(v) 0.39(h) 0.30(v) 0.26(h) 0.20(v) 0.20(h) 0.15(v) 0.13(h) 0.10(v)
Field 1/2” 0.70(h) 0.52(v) 0.52(h) 0.39(v) 0.35(h) 0.26(v ) 0.26(h) 0.20(v) 0.18(h) 0.14(v)
Field 2/3” — — 0.48(h) 0.36(v) 0.36(h) 0.27(v) —
Mag. 22.75X 30.5X 45.5X 61.0X 91.0X
Field 1/4” 0.14(h) 0.10(v) 0.10(h) 0.08(v) 0.07(h) 0.05(v) 0.05(h) 0.04(v) 0.04(h) 0.03(v)
Field 1/3” 0.22(h) 0.16(v) 0.16(h) 0.12(v) 0.11(h) 0.08(v) 0.08(h) 0.06(v) 0.06(h) 0.04(v)
Field 1/2” 0.28(h) 0.22(v) 0.21(h) 0.16(v) 0.14(h) 0.11(v) 0.11(h) 0.08(v) 0.07(h) 0.05(v)
Field 2/3” — — 0.19(h) 0.15(v) 0.14(h) 0.11(v) —
0.5X Adapter
1-62088
0.67X Adapter
1-61453
1.0X Adapter
1-61445
Navitar Ultra Precise Eye
inspecting PCB components.
1.33X Adapter
1-61448
2.0X Adapter
1-61450
Precise Eye High Mag Fixed Lenses
NOTE: The O-I remains constant for each body tube (main assembly) regardless of which infi nity corrected objective and adapter are
selected: 1-61517 I-O = 219 mm, 1-61521 I-O = 243 mm, 1-61522 I-O = 263 mm
Phone: 800-828-6778 or 585-359-4000 • Fax 585-359-4999
Ultra Precise Eye system dimensions can be found
on our website at www.machinevision.navitar.com
61
Precise Eye Internal Co-axial
Navitar’s Precise Eye with Internal Co-axial Illumination (1-61446) is
an ideal solution for applications involving highly reflective surfaces,
such as wafers, polished samples, and fluids. Designed to provide even
illumination for higher magnification applications, coaxial illumination
provides extremely detailed resolution, particularly when a high resolutin
camera is used.
Precise Eye Field of View Matrix for Internal Co-axial (in mm at nominal working distance)
Lens Attachment W.D. (mm)
0.5X
0.035 N.A.
DOF 0.40 mm
1-60110
175
(nominal)
170-190
(1) W.D. Range
Precise Eye High Mag Fixed Lenses
0.75X
0.054 N.A.
DOF 0.17 mm
1-60111
None
0.070 N.A.
DOF 0.10 mm
1.5X
0.104 N.A.
DOF 0.046 mm
1-60112
2.0X
0.141 N.A.
DOF 0.025 mm
1-60113
Notes:
The internal coax will illuminate a circular area of about 11 mm in diameter. Any fi eld of view larger than 11 mm will have darkened corners.
(1) Working distance range when using 3 mm fi ne focus. Field of view will change with shorter or longer working distance.
113
(nominal)
110-120
(1) W.D. Range
92
(nominal)
90-93
(1) W.D. Range
51
(nominal)
49-51
(1) W.D. Range
36
(nominal)
35-36
(1) W.D. Range
Camera Format &
Parameters
0.5X Adapter
1-62088
0.67X Adapter
1-61453
1.0X Adapter
1-61445
1.33X Adapter
1-61448
2.0X Adapter
1-61450
Mag. 0.45X 0.60X 0.90X 1.2X 1.8X
Field 1/4” 7.2(h) 5.2(v) 5.3(h) 4.0(v) 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v)
Field 1/3” — 8.0(h) 6.0(v) 5.3(h) 4.0(v) 4.0(h) 3.0(v) 2.7(h) 2.0(v)
Field 1/2” — — 7.1(h) 5.3(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v)
Field 2/3” — — — 7.3(h) 5.5(v) —
Mag. 0.7X 0.90X 1.4X 1.8X 2.7X
Field 1/4” 4.6(h) 3.6(v) 3.6(h) 2.7(v) 2.3(h) 1.8(v) 1.8(h) 1.3(v) 1.2(h) 0.9(v)
Field 1/3” 7.2(h) 5.4(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v)
Field 1/2” — 7.1(h) 5.3(v) 4.7(h) 3.6(v) 3.6(h) 2.7(v) 2.4(h) 1.8(v)
Field 2/3” — — 6.5(h) 4.9(v) 4.9(h) 3.7(v) —
Mag. 0.9X 1.2X 1.8X 2.4X 3.6X
Field 1/4” 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v)
Field 1/3” 5.4(h) 4.0(v) 4.0(h) 3.0(v) 2.7(h) 2.0(v) 2.0(h) 1.5(v) 1.3(h) 1.0(v)
Field 1/2” 7.2(h) 5.4(v) 5.3(h) 4.0(v) 3.6(h) 2.7(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v)
Field 2/3” — — 4.9(h) 3.7(v) 3.7(h) 2.8(v) —
Mag. 1.35X 1.8X 2.7X 3.6X 5.4X
Field 1/4” 2.4(h) 1.8(v) 1.8(h) 1.3(v) 1.2(h) 0.9(v) 0.9(h) 0.7(v) 0.6(h) 0.4(v)
Field 1/3” 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v)
Field 1/2” 4.8(h) 3.6(v) 3.6(h) 2.7(v) 2.4(h) 1.8(v) 1.8(h) 1.3(v) 1.2(h) 0.9(v)
Field 2/3” 6.6(h) 4.8(v) — 3.3(h) 2.4(v) 2.4(h) 1.8(v) —
Mag. 1.8X 2.4X 3.6X 4.8X 7.2X
Field 1/4” 1.8(h) 1.4(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v) 0.7(h) 0.5(v) 0.5(h) 0.3(v)
Field 1/3” 2.6(h) 2.0(v) 2.0(h) 1.5(v) 1.3(h) 1.0(v) 1.0(h) 0.8(v) 0.7(h) 0.5(v)
Field 1/2” 3.6(h) 2.6(v) 2.7(h) 2.0(v) 1.8(h) 1.3(v) 1.3(h) 1.0(v) 0.9(h) 0.7(v)
Field 2/3” 4.8(h) 3.6(v) — 2.4(h) 1.8(v) 1.8(h) 1.4(v) —
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Precise Eye NIR Lens
Navitar’s Precise Eye NIR lens
system offers high resolution and
unparalleled sensitivity for
capturing microscopic images. We
have specially coated the glass on
our Precise Eye NIR lens systems to
be optimized for imaging in the 7001550nm (0.7-1.5 microns) wavelength range. Our Precise Eye NIR
lens system is easy to configure and
set up. Simply find the field of view
and working distance required just
as you would with any of our other
standard Precise Eye lenses.
For a complete listing of available
Precise Eye NIR parts, please
reference our website or contact
your Navitar sales representative.
About Using NIR Lenses
The wavelength band just beyond the visible is known as Near Infrared
(NIR). NIR is the electromagnetic band of wavelengths between 0.7-1.5
microns (700-1550nm). When light strikes a glass surface, a portion is
bounced back, thereby reducing the strength of the transmitted image.
Apply this behavior to fixed focal length optics with many glass surfaces,
and the result is a severe reduction in image intensity. To counteract the
loss, the lenses are coated with materials that minimize this effect.
Transmission of Precise Eye
Precise Eye High Mag Fixed Lenses
Applications Where
NIR Optics are Useful
• Wafer characterization.
• Laser beam profiling.
• Optical component
measurement and analysis.
• Fiber alignment and inspection.
• Assembly and monitoring.
Note: Since NIR lenses are not operating within the visible spectrum, the resulting image is slightly different than when using a standard Precise Eye system. The
standard lens resolution limits of an NIR lens are based on an assumed average
wavelength of 0.5 microns and is inversely proportional to wavelength (maximum
MTF = 3000xNA in the visible wavelength). Therefore, substituting a wavelength
of 1.5 microns will reduce the maximum resolution by a factor of 3. In practice,
this means a slight reduction of contrast at the higher wavelengths.
Lens focal lengths shift slightly with wavelength, which impacts the Numerical
Aperture (NA), which affects the depth of field (.0005/NA^2). Generally, the NA
is reduced, which produces a greater depth of field, along with a reduction in
maximum resolution. Standard NIR microscope objectives are usually lower in
NA, also reducing maximum resolution values.
A list of all Precise Eye NIR lens system components can be found on our website at
www.machinevision.navitar.com
Phone: 800-828-6778 or 585-359-4000 • Fax 585-359-4999
63
Precise Eye
Accessories
Precise Eye Stand Adapters and Clamps
Navitar offers different stand adapter plates so you
can use your Precise Eye system with various focus
mounts, including Nikon, Olympus and Meiji. A
mounting clamp is also available for applications
where the Precise Eye needs to be mounted within
existing equipment.
Mounting Clamp
1-61510
Ø76mm
1-61662
Lighting Accessories
• LED ring lights
Precise Eye High Mag Fixed Lenses
• Brightlight LED coaxial
illuminators
• Fiber optics illuminators
• Power supplies
Illumination has proven to be one of the most important components when designing a successful imaging
system. Navitar thoroughly understands that the correct lighting can only enhance the performance of our
industry leading vision systems.
Our LED-based ring lights and coaxial lights were
designed with careful consideration for the standard
working distances that most of our customers use. The
components are low profile and provide bright, even
illumination to compliment the performance of your
vision system.
Our series of high intensity fiber optic illuminators
and accessories allow you to position your light for
the best possible viewing. These versatile illuminators
offer low operating temperatures and low noise
output.
Ø84mm
1-61663
Digital Camera Adapter
Navitar’s unique Digital Camera Adapter allows you
to couple your digital camera or camcorder to any
C-mount or standard SLR lens, microscope or telescope, permitting a digital recording of your subject
matter.
The Digital Camera Adapter
comes with a male M37 x 0.75
thread, a popular thread size used
on a number of different cameras.
If, however, your camera does
not have the correct thread size,
the required adapter is readily
available from most aftermarket
camera shops (recommended web
sites are www.dcprodirect.com or
www.steves-digicams.com).
• Attaches digital camera or camcorder to any
C-mount or standard SLR lens.
• Permits digital recording of subject matter.
• Includes a male M37 x 0.75 thread.
• Fits any standard 30 mm microscope eyepiece port.
• Enables any lens to be used as a standard
monocular for direct viewing with the eye.
The Navitar Camera Adapter works beautifully with
microscopes, fitting into any standard 30 mm eyepiece
port. In the case of SLR lenses, the appropriate Cmount adapter will be needed (i.e. Pentax K-mount to
C-mount adapter, T-mount to C-mount adapter, etc.).
Telescopes require a 1¼” to C-mount adapter. All of
these various adapters can be fitted to the Navitar Digital Camera Adapter to couple cameras and camcorders
to virtually any lens, microscope or telescope.
In addition to allowing you to photograph and record
digital images, this innovative camera adapter also
enables any lens to be used as a standard monocular for
direct viewing with the eye.
64
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