Brochure

OCUS

Revolutionizing vision
Sharply imaging three-dimensional, moving,
or inclined objects is known to be a real
challenge. Cameras equiped with conven-
onal opcs always struggle to keep the
enre scene in focus when a lot of details
need to be captured. The problem is their
limited focus depth, also called depth of field
(DOF). Seng a higher DOF will result in less
detailed images. Likewise, when a higher
resoluon is set, the DOF will decrease. This
physical limitaon is one of the biggest
problems in vision across industries as it a
severely impacts producvity and efficiency.
Picture
Standard camera
Picture
Standard camera
But what if it would be possible to capture
images with a large DOF and a high
resoluon at the same me? And what if
such images could be captured in the blink of
an eye? Think of the enormous reducon in
costs that could be realized during
producon and inspecon processes because
of the me being saved. Or imagine the great
amount of detail that could be uncovered
when imaging large samples under a
microscope. And envision the superior clarity
and smoothness with which fast moving
objects could be captured.

across industries.
Focus
Invenira has developed FocusX to achieve
exactly these goals. FocusX is a unique vision
technology that allows imaging at the
resoluon of convenonal opcal systems,
while increasing the DOF up to 20 mes.
Moreover, it can acquire images in one shot,
within one camera frame. FocusX does not
require any mechanical scanning, deformable
lenses or special illuminaon, making it a
highly reliable and easy-to-integrate vision
technology. As a result, the FocusX
technology can be embedded into almost
every convenonal opcal system.
FocusX outperforms all exisng technologies
in its class. This is made possible with
Invenira's patent-pending opcs and
proprietary image processing algorithm.
There is a vast number of applicaons for this
technology, including: microscopy, quality
control, metrology, opcal character
recognion, bar code reading, flow
cytometry, laser scanning, 3D vision and
parcle imaging velocimetry. Invenira offers
an evaluaon kit that allows companies to
determine whether the FocusX technology
fits the requirements of their applicaon.
Focus

Challenges in conventional systems
HIGH RESOLUTION
Low depth of field
HIGH DEPTH OF FIELD
Low resoluon
2
1
2
3
MECHANICAL SCANNING
Slow moon, mulple images needed
Object
MULTIPLE CAMERAS
Space consuming, alignment issues
1
2
3

One-shot extended depth of field
Convenonal
camera
One-shot image
acquision
Blurred, unprocessed
image
Patent pending
mul-focal opcs
High-speed
proprietary image
processing algorithm
Convenonal
opcal system
1
2
3
Object
1 2 3
Sharp, processed
image
FoucsX Focus uses a unique mul-focal opcal unit
in combinaon with convenonal opcs to
image the object in one shot on a
convenonal camera sensor. A state-of-theart
processing algorithm generates a highresoluon
image from the slightly blurred
camera image.

E treme throughput
Focus stacking
Light field
Focus
EDOF
The maximum achievable
depth-of-field extension factor
for standard configuraons
PIXELS
The required increase in number
of pixels to achieve an image
with extended depth of field
> 100X 6X 20X
1X 4X 1X
IMAGES
Number of images required to
generate an extended-depth-offield
image
> 100X 1X 1X
THROUGHPUT FACTOR
The increase in throughput:
EDOF / (PIXELS × IMAGES)
1X 1.5X 20X
Focus increases the throughput up to 20X compared to
what is achieved with other extended depth of field
technologies by combining a large depth of field with a high
resoluon and single-shot acquision.

Benefits
EXTENDED DEPTH OF FIELD
Up to 20X the depth of field of a
diffracon-limited imaging
system can be reached.
ONE SHOT, HIGH SPEED
Only one camera frame is required
to generate an EDOF image. This
allows capturing images at the
camera frame rate, which enables
capturing moving objects with
large height differences while
staying in focus.
HIGH RESOLUTION
Diffracon-limited resoluon
is achievable. The system
can even be configured to
aain superresoluon.
ANY LIGHTING
Works with convenonal lighng
configuraons, both monochromac
and broadband, at any
wavelength.
HIGH RELIABILITY
The opcal technology consists
of non-moving, passive opcal
components in a compact unit.
EASY INTEGRATION
The opcal technology can be
integrated into the opcs of a
dedicated design or as an add-on
to an exisng imaging system.

Technology capabilities
DEPTH OF FIELD
MODULATION TRANSFER FUNCTION
1.000
1.0
100
OCUS
0.8
Depth of field (mm)
10
1
0.1
0.01
Conventional imaging
Contrast (-)
0.6
0.4
0.2
Edge of DOF
Middle of DOF
0.001
0.6
1 2 4 6 10 20 40 60 100
Optical resolution (µm)
0
0.1 0.2 0.3 0.4
Cycles per pixel (-)
0.5
Processing power multiplication factor
10
5
2
1
0.5
0.2
0.1
REQUIRED PROCESSING POWER
1 2 5 10 20 50
Number of pixels (MPx)
The FocusX OCUS technology extends the depth of
field up to 20 mes compared to a
convenonal diffracon limited system, given
by λ / NA². Depth of field and opcal
resoluon can be tailored to the applicaon.
The Modulaon Tranfer Funcon graph shows
the contrast, which by default is opmized to
at least 0.3 at the opcal resoluon (0.3 cpp).
The MTF can be designed to any profile.
The required processing power scales
approximately linear with the number of
camera pixels. Doubling the number of pixels
requires doubling the amount of processing
power to achieve the same frame rate.

Images
The following images compare the performance
of a FocusX imaging system with
that of a convenonal imaging system.
The key specificaons of both systems are
summarized in the table on the right.
Conventional
Focus
Pixel resolution (mm)
Resolution (µm)
Depth of field (mm)
Conventional FocusX
7.9 7.9
11 11
0.60 6.0
Focus is available with other specificaons, incl. higher DOF extensions.
Conventional
-3 mm
+3 mm
0 mm
Focus

Integration
MICROSCOPES
SYSTEM ADD-ON
TELECENTRIC LENSES
Camera
Tube lens
FocusX
unit
Objecve
lens
FocusX
add-on
Exisng
imaging
system
Camera
FocusX
unit
FIXED FOCAL
LENGTH LENSES
The FocusX technology consists of a compact
opcal unit, which can be integrated into any
opcal system. For example, the unit can be
embedded into a telecentric lens or a microscope,
or it can be added at the front of a convenonal
fixed focal length lens. Another opon is to
replace the camera of an exisng system with a
FocusX add-on system.
Camera
FocusX
unit

Applications
SEMICON PRODUCTION
QR CODE READING
OPTICAL METROLOGY
3D VISION
LASER SCANNING
FLOW CYTOMETRY
QUALITY CONTROL PARTICLE DETECTION YOUR APPLICATION

Evaluation Kit
Camera
5MPx, Monochrome, USB 3.0
Optical base unit
50 mm mounng collar
FocusX unit
Available DOF extensions:
5X / 10X / 20X
Objective lens
Available magnificaons:
0.1X / 0.25X / 0.5X / 1X / 2X / 5X / 10X
Illumination
Ring lighng / back-lighng
Resolution test targets
Posive & negave 1951 USAF test targets
Microscope stand
Travel range:
X − 80 mm, Y − 50 mm, Z − 500 mm
Invenira offers an evaluaon kit that allows you to explore the possibilies and
performance of the FocusX technology first hand. The evaluaon kit includes all
essenal components, a number of oponal components depending on your
interests and applicaons, a range of accessories to facilitate fast tesng and
easy-to-use soware for image capturing, processing and analysis.

Evaluation Kit
The soware that is included in the
FocusX OCUS Evaluaon Kit allows you to
capture camera images and process
them in real-me with the FocusX
algorithm. The key parameters of the
algorithm can be set according to
your applicaon with the aid of an
easy-to-use graphical interface.
Other funconalies include saving
raw and processed images, capturing
video sequences, loading previously
captured images for post-processing
and analysing images.
The following table gives an overview of the available opons for the FocusX OCUS Evaluaon Kit.
Magnification 0.1X 0.25X 0.5X 1X 2X 5X 10X
Field of view (mm) 110 44 22 11 5.5 2.2 1.1
Resolution (µm) 55 22 11 5.5 2.8 1.1 0.6
Depth of field - 5X (mm) 75 12 3 0.75 0.19 0.030 0.0075
Depth of field - 10X (mm) 150 24 6 1.5 0.37 0.060 0.015
Depth of field - 20X (mm) 300 48 12 3 0.74 0.120 0.030
Camera resolution
2054 x 2456 px
For more informaon, please check the corresponding FocusX OCUS Evalaon Kit datasheet.

Book your FocusX demo
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www.invenira.com contact@invenira.com
+32(0)489 40 44 84
Invenira, 2021
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