“THE EXAMINER”
SYSTEM DESCRIPTION
LASER EXAMINATION SYSTEM
FOR FORENSIC SCIENCE
A COMPREHENSIVE TECHNIQUE TO ASSIST FORENSIC
INVESTIGATION BASED ON ADVANCED COPPER VAPOR
LASER TECHNOLOGY
THE CJ LASER CORPORATI ON • 3035 Dryden Rd. Dayton, OH 45439 • 517 296-0513
TABLE OF CONTENTS
SYSTEM FEATURES .........................................................1
COMPARASION OF CVL's ..............................................2
TO ARGON ION & Nd:YAG
SYSTEM ADVANTAGES ..................................................2
COST BREAKDOWN .........................................................2
EXPLANATION OF SERVICE CONTRACTS ................3
WARRANTY ........................................................................3
INSTALLATION & TRAINING ..........................................3
ILLINOIS STATE POLICE ................................................4
COMPONENT BREAKDOWN ..........................................4
FIBER OPTIC DELIVERY .................................................5
BEAM INSERTION INSTRUMENT ..................................5
FIBER OPTIC CABLE ASSY ....................................... 5-6
OUTPUT HANDSET ...........................................................6
LIGHT CONTROL ACCESSORY .....................................6
MULTI-COLOR & YELLOW OUTPUT ............................7
DUAL BEAM OUTPUT ......................................................7
DUAL BEAM ASSY MOUNTING .....................................7
TECHNICAL INFORMATION ................................ 8-9
“EXAMINER” FEATURES
 CONFIGURED SPECIFICALLY FOR FORENSIC EXAMINERS
 STATE OF THE ART COPPER VAPOR LASER
 DUAL BEAM OUTPUT
 FIBER OPTIC DELIVERY
 VARIABLE ILLUMINATION AREA & INTENSITY
 COMPREHENSIVE SUPPORT ACCESSORIES
 INSTALLATION AND TRAINING
 CONVENIENT, EFFECTIVE & SAFE OPERATION
 LOW OPERATING COSTS
 SENSIBLE SERVICE POLICY
WHY A COPPER VAPOR LASER?
The copper vapor laser is an ideal light source for forensic investigation. The wavelength is
deep green with a tinge of blue. This is a perfect color for exciting naturally occurring
organic chemicals or dyes applied to evidence. Unlike the continuous argon ion
lasers, a CVL emits thousands of short intense pulses of light each second. This
characteristic has proven to be the most effective way to induce fluorescence. The time
it takes for a high power light pulse to be absorbed by a molecule and the time required
by the molecule to relax and emit the fluorescent light is well matched to CVL timing.
This means that less average power will achieve the same or better results. Argon
lasers also require 4 to 5 time more input power than CVL’s. This means much more heat
to dissipate, and a three phase hook-up. Laser tube replacement is considerably more
expensive.
The CVL is driven at 8000 pulses per second. There is no perception of flicker. The Nd:YAG
laser used in forensic applications is driven at 30 pulses per second. Although the peak power
is as effective as the CVL, the pulse rate produces a flicker that is irritating to the eye.
Furthermore, the light emits in the yellow-green. This color is less efficient in inducing
fluorescence with examination techniques using Zinc Chloride and other chemicals
less responsive to long wave green.
Refer to our brochure for a detailed description of CJ Laser’s SERIES 2000 Metal Vapor
Lasers.
ADVANTAGES OF THE "EXAMINER" SYSTEM
Operational simplicity, superior performance and long term value . are unsurpassed
among forensic laser systems. The "EXAMINER" is designed for convenience.
Consider the facts and compare:
BOTH LASER HEAD AND CONTROLLER ARE WATER COOLED.
EXAMINATION ROOM WILL NOT OVERHEAT.
THE
THE 8000Hz PULSE RATE IS NOTICEABLY QUIET COMPARED TO THE
6000Hz USED IN COMPETITIVE CVL's. PHONE CALLS AND SPEECH CAN BE
CONDUCTED IN NORMAL TONES.
GROUNDING AND EMI PROTECTION ARE CONVINCIN GLY SUPERIOR TO
COMPETITIVE CVL's. NEARBY EQUIPMENT WILL NOT BE AFFECTED.
THE BEAM DIAMETER IS SMALL AND HAS NATURALLY LOW
DIVERGENCE. THIS PERMITS THE USE OF SMALL CORE DIAMETER FIBER.
THE FIBER OPTIC CABLE REQUIRED FOR OUR LASER COSTS LESS THAN
20% OF THE CABLE USED BY BIG BEAM COMPETITIVE MODELS. THIS
WILL SAVE THOUSANDS IF LENGTHY CABLES ARE REQUIRED.
THE YELLOW LIGHT IS REJECTED TO BETTER THAN ONE PART IN A
MILLION. COMPETITIVE CVL's PASS MORE YELLOW AND DEGRADE
FLUORESCENCE.
METAL REFILLING AND RESTARTING TAKES LESS THAN 1.5hrs.
COMPETITIVE MODELS TAKE UP TO A FULL DAY.
THE LASER IS FULLY AUTOMATIC. TURN A KEY, PRESS A BUTTON AND
THE LASER WILL SELF-CHECK AND BE OPERATIONAL IN LESS THAN AN
HOUR.
THE LASER HEAD AND CONTROLLER ARE MODULAR DESIGNS
GUARANTEED TO ACCEPT FUTURE IMPROVEMENTS AND ENHANCED
FUNCTIONS. FREQUENCY DOUBLING INTO THE ULTRAVIOLET AND DYE
LASER PUMPING ARE POSSIBLE. THE BASIC UNITS WILL NEVER BECOME
OBSOLETE.
MAINTENANCE REQUIREMENTS ARE MINIMAL & UNCOMPLICATED.
THE EXAMINER CAN BE INSTALLED IN A VAN FOR ON SITE
APPLICATIONS. CONSULT THE FACTORY FOR DETAILS AND PRICING.
COMPARE COSTS DURING THE FIRST YEAR's OPERATION...
Electricity at $0.10 per KWhr ....................................................................... $ 624.00
Copper (2 units) ............................................................................................... $ 200.00
Buffer gas (3 units) ......................................................................................... $ 270.00
Maximum service charge (option) ............................................................... $3000.00
Based on 40hr per week
and 52 weeks per year
TOTAL w/o SERVICE = ....... $1094.00
TOTAL with SERVICE = ...... $4094.00
COMPARE THE SERVICE CONTRACT
OUR CUSTOMERS PAY ONLY FOR SERVICES ACTUALLY PROVIDED…
The EXAMINER system is built to last, and backed by a sensible service contract
policy. The user can opt a three or a five year program. The plan is simple. It
contains no hidden charges. At the start of the first contract year an amount from
the table below is invoiced. A record of parts, labor and travel expenses is
maintained throughout the 12 month period. If this total is less than the yearly
payment, the excess balance is credited to next year's payment thereby reducing
the amount invoiced. Savings start after the first year. Under no circum stances
will the amount exceed the tabulated figures. If the laser is under warranty, only
travel expenses are charged against the annual payment.
YEAR
1
2
3
3 YEAR PLAN
$3000
$4000
$5000
5 YEAR PLAN
$3000
$3000
$4000
4
5
Max Investment
$12,000
$4000
$5000
$19,000
WARRANTY
All products described in this brochure are warranted to be free from defects for a
period of 12 months from date of shipment. The CJ Laser Corporation will be
obliged to repair or replace products proven to be defective during the warranty
period. Consumables and damage resulting from abuse or incorrect operation are
not covered.
INSTALLATION & TRAINING ARE INCLUDED
One day of installation and training is included in the package price. Training is
provided by an experienced forensic examiner, not merely factory engineers or
technicians. Techniques for evidence examination under laser illumination and
laser safety procedures are covered along with routine operation and maintenance.
The preparation which we require from the customer is simple and inexpensive:
A standard shut off valve with male garden hose threads, and a tap water flow of
2gpm @ 40psi. (within 40ft of the Controller)
A drain for the cooling water. (within 40ft of the controller)
10 gage copper wiring terminating into a standard rectangular handy box within
20ft of the controller and a fused or breaker p r o t e c t e d 2 3 0 V A C , 3 0 a m p , s i n g l e
phase c i r c u i t .
A sturdy table approximately 8ft long for supporting the laser head, 3 x 3ft of floor
space for the controller and table top area for evidence examination.
THE COMPLETE FORENSICS EXAMINATION PACKAGE ..
The EXAMINER is a complete, ready to go, turn key forensic examination system. CJ
Laser developed the approach in collaboration with the Illinois State Police, Division
of Forensic Services.
We asked for their wish list and engineered each component
to meet or exceed the specification. All equipment listed below is included in the
purchase price. We invite item by item comparison to any other system.
GUARANTEED TO PROVIDE POWER TO SERVE AT LEAST
TWO WORK STATIONS SIMULTANEOUSLY ....
CJ Laser achieves higher performance with 12 watts of average power than systems of
20 watts or more. The formula lies in exploiting the superior beam quality and output
stability. Crisp definition, small diameter, high power density and low divergence
support effective light controls and compliment the various techniques used in the lab.
Our working sessions with the Illinois Forensic Examiners defined the need for a
finesse approach. The high average power, large beam diameter designs used in the
past were wasteful and expensive. However, they conclusively proved the value of
CVL's.
THE COMPONENTS YOU WILL RECEIVE…
(1) MVL-2012 CU 12 WATT COPPER VAPOR LASER SYSTEM
(1) FDS-2000 FIBER OPTIC DELIVERY SYSTEM
(1) DBA-2000 DUAL BEAM OUTPUT ASSEMBLY
(1) LC-2036 LIGHT CONTROL ACCESSORY
(1) GIMBALLED MOUNTING HARDWARE FOR LC -2036
(1) LIGHT ABSORBING WORK SURFACE
(1) CHEMISTRY KIT:
GENERAL PURPOSE FLUORESCENT DYE 4oz
ZINC CHLORIDE SOLUTION 4oz
APPLICATION INSTRUCTIONS
ATOMIZER FOR APPLICATION OF LIQUIDS
(2) GENERAL PURPOSE COPPER VAPOR EYE SAFETY SHIELDS
(2) FILTERED VIEWING SHIELDS WITH INTERCHANGABLE FILTERS
(1) 2" SQ. FILTER HOLDER FOR CAMERA RECORDING
(5) 2" SQ. COLOR FILTERS OF GRADUATING BANDPASSES
(1) WATER FILTER WITH ALL CONNECTORS
(1) 50ft HOSES FOR WATER TRANSFER
(1) 30ft POWER CABLE WITH CONNECTORS
(1) 30 AMP W ALL OU T LET
(1) MANUAL OF OPERATIONS
(1) VACUUM PUMP MAINTENANCE KIT
(1) OPTICS CLEANING KIT
FDS-2000 F1 – FIBER OPTIC DELIVERY SYSTEM
The FDS-2000 F1 system consists of a beam insertion instrument, a fiber optic
cable assembly and the beam output handset. Each component is configured
specifically for forensic applications.
BEAM INSERTION INSTRUMENT
This component attaches over the output aperture of the laser and positions the beam into the
fiber. An adapter is attached to the laser housing. This adapter is tapered and keyed to accept
the beam insertion instrument. It precisely repositions the assembly when it is removed
from the front of the laser during metal refilling. The attachment is secured by a threaded collar.
The entry aperture has provision for a 1.5"dia normal incidence optical filter. The filter can be
quickly exchanged.
The output beam is inserted into the fiber by turning three coaxial control rings. These
rings manipulate the focal point of a lens and the fiber optic termination into optimal alignment.
Adjustments are truly orthogonal X-Y-Z axis controls.
The Z axis adjustment is set initially and need not be tweaked. X and Y axis tuning is similar
to focusing a camera lens. The tuning rings are designed for 100% tactile operation. They are
close to each other
but distinctly separated. The operator can tune from any angle even in
total darkness.
Tuning resolution can be selected by exchanging modular inserts. This feature increases the
versatility by matching mechanical movement to the fiber core size. Exchange takes
about a minute, is easily accessed and requires only an alien wrench.
The insertion instrument has a internal beam attenuating shutter. The operator cannot be
exposed to laser light when the fiber optic cable is inserted or removed. The cable is
equipped with a. large diameter termination fitting for easy insertion and resistance to breakage.
FIBER OPTIC CABLE ASSEMBLY
Fiber cable length can be provided to customer specification. CJ Laser provides all cables
with outer jacket of flexible, helically wound stainless steel tube. A liner is fitted between
the outer jacket and fiber to protect the fiber from abrasion.
One end of the cable is equipped with a connector mated to the insertion instrument. The other
end is provided with a standard LMA style connector. The SMA termination is internalized
into the handset. However, it can be accessed if cable replacement becomes necessary. The
cable end of the handset functions as a strain relief mount and access limiting cover.
OUTPUT HANDSET
The output handset is the system component which functions as the output aperture. It is
equipped with a pushbutton type internal beam attenuating shutter. If the button is released, the
light will shut off.
A receptacle is provided into which the handset can be inserted.. It is a ring which can be held
by a lab stand or hardware having a 1/4"-20 stud. The receptacle provides hands off operation
yet maintains the shutter operation. When the handset is in the receptacle, an axial twist
will actuate the button and control the light. If for any reason the handset is removed, the
button will be released and the light will shut off.
The output end has a lens which collimates the highly divergent light emitting from the fiber
end. The lens can be focused within a limited range, removed entirely or replaced with
another optical element.
LIGHT CONTROL ACCESSORY
The LC-2036 Light Control Accessory works in conjunction with the handset. It provides a
means of regulating the amount of light. A 1/4-20 threaded hole permits attachment to a
gimbaled rod and base for mounting above the work surface. The system provides
convenient and safe positioning flexibility. The oper ator has both hands free to
position the evidence. Vertical location along the post will determine the illuminated area at
any power setting.
Regulation of the light source provides the control necessary to obtain optimum signal to
noise ratio from illuminated evidence. It makes sense to -control the level of illumination
in the same fashion as a photographer. For example, excessive light will cause
background to fluoresce. If the background is too bright, a photograph of the subject matter
will not exhibit the evidence clearly.
OPERATION IS SIMPLE
1. INSERT THE HANDSET & TWIST TO TURN ON THE LIGHT
2. ADJUST THE IRIS DIAPHRAGM TO THE DESIRED INTENSITY
3. ADJUST THE HEIGHT TO OBTAIN THE DESIRED COVERAGE
MULTI-COLOR AND YELLOW OUTPUT
The FDS-2000 F1 is configured for forensic applications requiring monochromatic 510nm
green light. If full laser power must be delivered through the fiber, remove the yellow blocking
entry filter and handset lens. This will allow both the 510nm and 578nm yellow light to be
delivered through the fiber. The handset lens must be replaced with a non-filtering lens to
collimate the beam. If divergent light suits the application, no lens is required. Consult the
factory for price and delivery of green blocking collimating lenses, unfiltered lenses and green
blocking entry filters.
DBA-2000 – DUAL BEAM OUTPUT ASSEMBLY
The DBA-2000 2B Dual Beam Output Assembly converts a single output aperture into two
apertures. The 2B version is configured for forensic applications. The internal beam
attenuating shutter existing within the laser head will turn off both beam outputs
simultaneously. The two color output beam exits the laser aperture as usual. Part of the
beam reflects off the first surface of a beam splitter and part transmits through the beam splitter.
The reflected portion of the beam travels to a mirror, is reflected off the first surface,
and exits along the centerline of the auxiliary aperture. The transmitted beam exits along
the primary aperture centerline with slight horizontal displacement due to refraction through
the splitter.
Adjustments are provided to allow the user to precisely position both beams. All coatings are
high efficiency dielectrics. Optics options are available which provide any combination
of green and/or yellow from both apertures.
MOUNTING
A mounting adapter attaches to the output face of laser and accepts the DBA-2000
housing. The mount need not be removed for metal filling, maintenance or laser operation
without attachments.
A 2.0” square #10-32 threaded mounting hole pattern is available at the center of each
aperture. The FDS-2000 Fl tapered adapter is attached over the primary aperture. The
remaining aperture can be used for a second fiber delivery system. If this option is not elected,
the aperture is covered.
TECHNICAL INFORMATION
SPECIFICATION
FDS-2000 F1
FIBER MATERIAL
CABLE LENGTH
FIBER DIAMETER
CABLE JACKET
BEAM DIVERGENCE
TUNING RESOLUTION
Silica/silica
5 meters (16.4ft)
220/240um core/cladding
0.20"dia stainless flex
0.5 to 4° adjustable
0.3um per degree with the 5° insert
BANDPASS
YELLOW ATTENUATION
OVERALL TRANSMISSION
510.6nm
1 x 10' E @ 578.2nm
25% of total laser output power
LC-2036 APERTURE
LC-2036 DIVERGENCE
20mm max. 0.2mm min
Approx. 30°
DIMENSIONS
Insertion instrument
Output handset
Light control assy
3.50"dia x 5.25" L (89 x 133mm)
1.62"dia x 5.10" L (41 x 130mm)
2.0"dia x 4.93" L (51 x 125mm)
WEIGHT
Insertion instrument
Output handset
Light control assy
2 lbs (.90 kg)
12 ozs (.34 kg)
14 ozs (0.4 kg
DBA-2000 2B
ADJUSTING RESOLUTION
1.25” diameter
50.0mm dia, 10mm t, 1/4wave flat
Broadband hi gh efficiency dielectric
R=99% from 480nm to 700 nm
2.0" dia x .375" t, 1/4wave flat
Broadband hi gh efficiency dielectric
R=50% T=50% from 480nm to 700 nm
±2° angular, 0.02" translational
DIMENSIONS
9.0 x 4.0 x 2.0" (228 x 102 x 51mm)
WEIGHT
3 lbs (1.4 kg)
APERTURE
MIRROR SPECS
BEAMSPLITTER SPECS
SPECIFICATION:
MVL-2012 CU
NOMINAL POWER (TEM,Y)
WAVELENGTH
LASING MEDIUM
12 Watts ave.
510.6 @ 67%
Metallic Copper
BEAM DIAMETER
BEAM DIVERGENCE
16 mm
2 mrad full angle
INTERNAL REP RATE (prf)
PULSE ENERGY
PEAK POWER
8000 Hz
1.50 mJ
60 KW
PULSE DURATION
PULSE AMPLITUDE JITTER
SYNCHRONIZATION JITTER
HV INPUT POWER STABILITY
WARMUP TIME
25ns FWHM
2% rms (107 consecutive pulses)
<2 nsec
±2% rms (24hrs)
30-45min to lasing 60-80 min to rated power
GAS CONSUMPTION
METAL USEAGE
METAL REFILL INTERVAL
<0.1 L/hr. @ STP
min = 0.15 gms/hr max = 0 . 3 0 gms/hr
min = 100 hrs
max = 3 0 0 hrs
COOLING WATER
ELECTRICAL SERVICE
POWER CONSUMPTION
l gpm of tap water @ 40 psi min
208/220/240 VAC; 60Hz; 1 Phase
3 0 A , 3 0 0 0 VA maximum
578.2nm @ 3 3 %
HEAD DIMENSIONS
Weight
13.0"W x 10.6"H x 75.0"L, (330 x 270 x 1905 mm)
120 lbs (55 kgs)
CONTROLLER DIMS
Weight
30.0"W x 30.0"D x 36.0"H, (762 x 762 x 914mm)
300 lbs (136 kgs)
Specifications are subject to change. Consult the factory for updated information
WSK 5/87