IRVI ABRIS M series User manual

Manual
infrared viewers RoHs
Infrared viewers ABRIS Mseries
ABRM-1300-x ABRM-1700-x ABRM-2000-x
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infrared viewers
Content
Content .................................................................................................................................. 3
Safety requirements .......................................................................................................... 4
About ......................................................................................................................................4
Applications..........................................................................................................................5
How does it work? ............................................................................................................. 5
Operation ..............................................................................................................................6
IR viewer in comparison with a CCD camera........................................................... 8
Visualization of infrared laser beam in “mid-air” ................................................... 9
The Maintenance instruction ......................................................................................... 9
Black spots on screen ....................................................................................................... 9
Spectral sensitivity ...........................................................................................................10
Power density ....................................................................................................................11
Photosensitivity.................................................................................................................12
Technical information.....................................................................................................13
Warranty ..............................................................................................................................15

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infrared viewers
Safety requirements
• The customer is responsible for light source safety while using a
viewer as a standalone device or integrated into system.
• The customer must consider protective measures if necessary.
• While assembling or operating viewer, do not stare at the direct laser
(or other source) light even with safety goggles.
• This device will not protect you from direct or high light radiation. Use
viewer with caution and appropriate attenuation
• Electrical safety requirements must be complied while operating this
device.
About
High performance image conversion viewers ABRIS-M, based on high-
grade image converter, are designed to observe indirect radiation of
infrared laser, light emitting diodes (LED), dye and other IR-sources in 350 -
2000 nm spectral region. The lightweight, compact device can be used
hand-held, post mounted with the 1/4-20 internal thread or face-mask
mounted for hands free operation.
ABRIS-M viewer has better resolution, infrared sensitivity and factor of
intensification. Also, it can be used with a CCD camera adapter for PC and
video registration of the image.
This device allows viewing continuous lasers radiation as well as pulsed
lasers radiation with pulse duration from ps to µs without synchronization.

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infrared viewers
Applications
• Laser alignment and safety.
IR viewers are ideal for alignment of infrared laser beam and optical
components in near infrared systems.
• Semiconductors wafer inspection.
With a microscope adapter IR viewer can be used to view through the
surface of silicon and gallium arsenide wafers.
• Forensics and art restoration
• Photo processing
• Thermal imaging
• Food sorting
• Vein and blood vessel observation under the skin
• Fluid inspection
How does it work?
IR viewer is based on a first-generation high-grade image converter that
has an electro-static focusing system, photocathode S-1+ with increased
concentration of oxygen
and screen of type P-20
with maximum of
luminescence at 550nm.
Infrared viewer focus
emitted or reflected light
from a chosen subject into
the image tube where
electron image is generated. When powered (with battery or power supply)
the 16-18 kV voltage is generated required to accelerate the electron image
into the output phosphor screen. The fluorescent green light output (550
nm) is observed via an adjustable eyepiece lens.
Electrostatic lens
Visible
phosphor
screen
Photo-
cathode
surface
Imaging
optics
+HV

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Operation
CAUTION! Do not use the device for direct beam viewing. Long-term over-
exposure may cause satiation of screen and decrease of resolution or
irreversible reduction of photocathode response.
1. Unscrew the lid (1) of the battery compartment and install one AAA
size battery into battery compartment, observing the polarity.
2. Screw the handle (7) into the tripod thread ¼ inches (10) in body.
3. Take of the lens cover. To switch the unit on, press button (2).
NOTE: after switching off, the device continues to work some minutes
due to the accumulated power.
4. Rotate the ring (3) to focus the lens 1Х(F1.4/25mm). Rotate ring (13) to
focus the lens 2Х(F1.8/50mm). For adjustment of diaphragm (11),
release the screw, adjust the diaphragm (11) and tighten the screw. Turn
the ring (5) for eyepiece focus adjustment.
5. When viewing in near-infrared range, use cut-off filter (4). While
viewing a reflected radiation, use metallic surface as a reflector.Any
paper surface absorbs the radiation greatly.
6. For "goggle" operation, place the IR viewer onto "dovetail” (9) of face-
mask and clamp it with screw. Adjust the position with fixing screws for
the most convenient operation.

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Figure 1. ABRIS M 1X viewer
4
3
11
12
2
1
6
9
8
5
7
10
1. Lid of battery
2. Button ON/OFF
3. Focusing ring of
F1.4/25mm lens
4. IR Filter
5. Eyepiece
6. Socket 3V
7. Handle
8. LED
9. Dovetail (for face-
mask clamping)
10. Tripod thread
11. Diaphragm
12. C-mount ring
13. Focusing ring of
F1.8/50mm lens

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Figure 2. Lenses F1.8/50mm (left) and F1.4/25mm (right)
IR viewer in comparison with a
CCD camera
Certain models of CCD cameras can be used to observe near-infrared
radiation at wavelengths up to 1100 nm. However, because these cameras
are designed for optimum performance in the visible wavelength range, as
a result, they exhibit mediocre performance in the near-infrared range;
image bleeding, blooming, low sensitivity and low contrast are some of the
observed characteristics. Image conversion viewers are design to observe
much wider spectrum.
13
11
3
4
4

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Visualization of infrared laser
beam in “mid-air”
It is a misconception that an IR viewer can be used to view infrared laser
beams in “mid-air” (1100 – 2000 nm). However, if dust particles are in the
beam path, the beam will become partly visible. Basically, IR viewers can be
used to see the projection of the infrared beam spot on a flat diffusing
surface such as a white card or metallic surface.
The Maintenance instruction
1. During IR viewer operation there is no danger of electric shock.
2. When brought into a warm room from the cold outside the optical
elements may become wet.
3. Keep away viewer from mechanical damage and moisture.
4. Protect the lenses from dirt. If necessary, clean them with clean soft
cloth; remove oiled spots or deposit with cotton wool slightly wetted in
rectified alcohol or with alcohol-ether mixture.
5. If necessary, unscrew the lens and clean the photocathode window,
because dust can be seen through eyepiece.
Black spots on screen
Black spots on the screen are cosmetic blemishes in the image converter
which do not affect the performance or reliability of an infrared viewers.
Some spots are inherent in the manufacturing processes.

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Zone
Formandsizeof
zones on
photocathode,
mm
The greatest diameter
of points, mm
Total area of
allowable defects
on screen, mm2
Non
accounted
Accounted
Size
Qty
1
Circle dia 12mm
0.0735
0.294
2
0.452
2
Ring dia 12-19mm
0.1
0.588
1
0.904
3
Ring dia 19-24mm
Non specified
Spectral sensitivity
Figure 3. Spectral sensitivity (Abris M series IR viewers)

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Power density
Approximate minimum of power densities required to view an infrared
laser beam from a one meter distance:
Figure 4. Power density (Abris M series IR viewers)

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Photosensitivity
The minimum detectable signal for a near-infrared viewer depends on:
• Power density;
• Wavelength of incident radiation;
• Effective aperture of the objective lens;
• Distance between observed target and the viewer;
• Time duration of the signal (pulsed or continuous);
• Reflectivity of the diffusing surface;
• Sensitivity of human eye or device used in viewing the output of the IR
viewer.
Approximate minimum of power densities required for observing an
infrared laser source from a distance of one meter:
• 20 µW/cm2for a 1060 nm; 500 µW/cm2for a 1300 nm.
The IR viewer with sensitivity 350-2000 nm has the photocathode S-1+ type
which contain the increased concentration of oxygen. It increases sensitivity
of the photocathode. IR viewer can be used to view 2.0 µm laser beam at
minimum power density 2 W/cm2. When operated in the 1500-2000 nm
range, IR viewer has a low spectral response, therefore observations can be
performed when the following requirements are met:
1. Use an IR cut-off filter or interference filter and darken the room to
reduce external background;
2. Use a metallic surface for observation reflected radiation, as any other
material might absorb infrared radiation.

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Technical information
Version
1 (1X)
2 (2X)
Spectral sensitivity
ABRM-1300-x (350-1300nm)
ABRM-1700-x (350-1700nm)
ABRM-2000-x (350-2000nm)
Resolution (center)
60 Lp/mm
60 Lp/mm
Field of view
40°
20°
Magnification
1Х
2Х
Objective lens
F1.4/25mm
F1.8/50mm
Adjustable iris
Included
Included
Focus
0.1m to inf
0.5m (0.15m)* to inf
Battery
1.5V, 1x “AAA” size
Non-uniformity of screen
<20%
Non-uniformity of response
<15%
Distortion of image
<18%
Battery life (continuous)
35 hours
External power supply
DC 3V, 30 mA
Weight
0.38kg
0.42kg
Dimensions
140x78x52 mm
145x78x52 mm
Temperature range
-10ºC…40ºС
Tripod or handle
R”1/4"
* with macro ring
Lenses 1X (F1.4/25mm) and 2X (F1.8/50mm) are exchangeable.

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Standard kit for version 1X
includes:
• IR viewer;
• lens 1X;
• C-mount ring;
• IR filter;
• handle;
• battery and case.
Standard kit for version 2X
includes:
• IR viewer;
• lens 2X;
• macro ring;
• IR filter;
• handle;
• battery and case.
Accessories available upon request:
• Neutral density filter for lens 1X(3-5% @1064nm)
• Neutral density filter for lens 2X(3-5% @1064nm)
• Microscope adapter
• Face-mask for hands free operation
• IR illuminator (940nm, 850nm)
• 1:1 Optical relay lens adapter for c-mount camera
• Video adapter VA-1 to Abris
• Lens 2X (F1.8/50mm)
• Lens 1X(F1.4/25mm)
• Macro ring
• C-mount ring for any C-mount type lenses
• Tripod

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Warranty
Infrared viewing device ABRIS M meets specifications of the manufacturer
and declared operation.
The warranty period of the device is 24 months from the date it was sold
to the consumer.
Claims not accepted, and warranty repair are not made, because of the
improper use or incorrect service and maintenance of product instructions.
The company shall not accept warranty claim:
- non-authorized alteration,
- disassembling of device,
- mechanical or any external damages,
- if 2 years warranty term has expired.
Serial No.
Version No.
Spectral range
Date of Invoice

infrared viewers
ADOS-TECH,UAB
Mokslininku st. 2A,
LT-08412, Vilnius, Lithuania
Phone: [phone]
Fax: [phone]
[email protected]
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