
About Labrum Optical
Engineering
Labrum Optical Engineering's founder holds 10 U.S. patents for
designs, devices, and techniques in the optical engineering sciences. He has
also created sophisticated computer programs to simulate and optimize
optical/mechanical systems. In addition, he is the author of over 40 proposals,
technical reports, and "white papers" for private industry,
government, and professional journals.
Labrum Optical Engineering has its
own computers and software. We don't need to lease expensive hardware or
software, and the savings are passed on to our clients.
Along with the savings,
you get exceptional capability and quality. We have several hundred proven
optical designs in our data base. With Labrum Optical Engineering, you can avoid
the risk involved in using undocumented, off-the-shelf optics that produce
undocumented results. Custom-designed optics by Labrum Optical Engineering can
ctually be less expensive (in quantities of 50 items or more) than off-the-shelf
optics offered by some "ready-made" suppliers.
All our designs are fully documented
and become the property of the client. Documentation includes:
For some clients, experience,
innovation, and quality are not enough; they also need fast turn-a-round time.
Labrum Optical Engineering will work with you, step by step, to provide our
services on time and on budget.
Perhaps you already have an
excellent, in-house design group that needs little more than an outside opinion
from time to time. Labrum Optical Engineering is available. Perhaps you have an
extra heavy workload right now that requires an extra hand. Labrum Optical
Engineering is available.
On-site customer-tailored,
professional seminars to upgrade the skills of management, engineering, and
technical personnel in the optical engineering sciences.
Joseph Labrum, our president, is a consulting optics engineer with 25 years of
in-depth experience in solving a wide spectrum of optical engineering problems.
Complex laser systems for electronic
signal processing. Our signal processing systems have included acousto-optics
(Bragg cell) and Fourier Transform optics to perform real-time spatial
filtering.
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Numerous photographic
imaging lenses and complex photographic relay imaging systems.
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Color-corrected underwater
viewing port and underwater field of view correcting lens for the deep
submersible rescue vehicle (DSRV).
-
Color-separation optics
and lensing for live video, high-speed video, and tele-cine (film),
broadcast-quality color TV cameras.
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Precision colorimetry
using the CIE chromaticity measurement and display system.
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Short-pulsed, UV, N2 laser
microscope to measure the size and velocity of high speed aerosol
particles 10 microns in diameter traveling 10 meters/second.
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Numerous additional direct
vision microscopes for specialized use in optical research and
development. These microscopes were designed to measure the image
quality (MTF) and field curvature of various imaging systems.
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A series of microscopes
with ultra long working distances.
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These microsopes are
sometimes referrd to as close focusing telescopes.
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These microscopes are
useful in alignment of optical components in complex,
multi-component, optical assemblies.
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Ultra-high performance
photo-detection arrays with a measured dynamic range exceeding 60 dB
(1,000,000:1).
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Low-noise, high-speed,
photo-detection circuits.
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Optical heterodyne
detection

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Extensive experience in
the speckle problems of coherent (laser) imaging systems. Labrum
Optical Engineering has unique techniques to reduce speckle and
improve resolution.
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Two-element, cemented,
diffraction limited, F#3.9 collimating and/or focusing lenses.
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Custom spectrometers to
determine transmission, absorption, and reflection of various
materials in the near UV, visible, and near IR portions of the optical
spectrum.
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Custom spectroscopes for
analysis of multi-spectral line mixed gas lasers in real time.
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High performance lighting
instruments for theatre applications; and high intensity, miniature,
under-water lighting systems.
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Custom parabolic,
elliptical, and spherical reflector designs for special lighting
applications.
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High performance, long
distance (10 km), broadband (1 GHz), single-mode, analog (QPSK),
fiber-optic communications link.
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Optical wavelength
multiplexing and demultiplexing.
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Helmet-mounted sights and
heads-up display concepts.
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Non-contract methods to
determine the three-axis attitude of helmets used in headsup display
and sighting systems which yield a 10X accuracy improvement over
existing technology.

JOSEPH H. LABRUM
605 South 800 East
Orem, Utah 84097
Voice (801)226-2955
FAX (801)226-0433
E-Mail info@labrumopticaleng.com

There's something you should
know about Labrum Optical Engineering: It isn't just another engineering
firm. If you are looking for the out-of-the-ordinary optical engineering
services and/or out-of-the-ordinary optomechanical engineering services, Look to
Labrum.

The animated optical system you are
viewing is diffraction limited, (theoretically perfect) and combines the
functions of a 2.5X Laser Beam Expander, and a beam steering device (articulated
optical hinge).
The hinge operates over a +/- 4.0 degree range and
can be tilted in any direction. A 1º tilt in the optical train causes a 1º
change in the beam pointing direction. Normally it is easier to build separate
laser beam expanding optics and separate beam steering optics and assemble them
one after the other. However, this particular application was very space limited
and it was necessary to devise a way to combine both beam expansion and beam
steering into one short optical train.

Joseph Labrum Resume

CAREER SUMMARY
Mr. Labrum has a BS in Computer Science with
over thirty years of experience in Government and private industry R&D. He
has extensive experience in the design of optical systems for the UV, visible,
and near IR portions of the spectrum. He has extensive experience in the use of
several optical design programs including COOL-GENI, SODA, OSDP, and ZEMAX. He
has traveled extensively through-out North America, Mexico, Mesoamerica, South
America, and Europe and has basic skills in the Spanish Language. Mr. Labrum's
creativity has been rewarded with ten U.S. Patents in optics, laser optics,
acousto-optics, optical signal processing photo detector design, CCD design and
electro-optics.
PROFESSIONAL ACCOMPLISHMENTS
PROPOSAL & PROJECT
MANAGEMENT
Mr. Labrum has managed multiple projects,
interfacing directly with the customer and developing optical systems to meet
the customer's needs. Managing each project from concept through costing,
design, procurement, testing, validation, and final report(s). Mr.
Labrum has written, managed and/or co-authored over 40 white papers, proposals,
final reports, and IR&D project reports. Projects have included;
visual color display systems, ultra-high-speed photographic systems,
acousto-optic systems, optical-mux-demux systems, helmet sighting
systems, laser alignment systems, optical-heterodyne detecting
systems, wide-band fiber optic communication systems, and optical
receivers to detect spread spectrum communications in real time - just to
mention a few.
TECHNICAL PRESENTATIONS
Mr. Labrum has made numerous technical
presentations and in-term progress reports to audiences all over the United
States. He has also been the featured speaker/instructor at five, (week long)
International conference-workshops on high speed photography. He has
also been an instructor for SPIE (The International Society for Optical
Engineering) where he teaches two, continuing education, professional short
courses in colorimetry: Basic Color Perception and Measurement
and Advanced Color Perception and Measurement.
Mr. Labrum is also an accomplished
photographer. His work appears in several published archaeological texts,
He has also been a repeated guest lecturer at Brigham Young University where he
presented his photography and lectured about Mesoamerican archeology. He
has also taught college accredited photography classes at both the University of
Utah and Brigham Young University (BYU).
NEW PRODUCT DEVELOPMENT
Designed new, non-contact optical measurement
technology to measure the diameter of fast moving extruded materials with an
accuracy of 0.0002". This new technology has been incorporated into a new
product line with present annual sales of over $1,000,000.00 (one Million
dollars).
LASER BASED - MEDICAL SYSTEM DESIGN
Mr. Labrum has designed numerous laser based
optical systems. These systems have included a visible laser and fiber-optic
delivery system for experimental dental research in the treatment of periodontal
disease. A high resolution, ultra-violet laser microscope for studying the size
and velocity of microscopic (0.1micron -100micron) aerosol particles which may
be inhaled and tapped in the lungs. A spectroscopic system to simultaneously
monitor all of the spectral lines of a multi-line laser. This allowed the study
of the power dynamics and stability of the cavity of a mixed gas medical laser.
He has also developed a unique "optical hinge for lasers" or
"articulated hinge." This new optical hinge provides the ability to
continuously tilt, aim, or bend a laser beam by more than 4 degrees in any
direction while maintaining diffraction limited optical performance.
FOURIER OPTICS - SIGNAL PROCESSING
Mr. Labrum holds a half-dozen patents for his
work in Fourier optics and acousto-optic signal processing. His unique approach
to aperture weighting (optical and acoustic) and time base management provided
several new, and novel method(s) of detecting state-of-the-art spread spectrum
(Pseudo noise and frequency hopped) communications signals in real time, with
near 100% probability of detection.
OPTICAL LENS AND REFLECTOR DESIGN
Mr. Labrum has designed many photographic and
television imaging lenses and complex relay imaging systems for use both above
and below (in) water. These systems have also required the custom design of
specialized aspheric-reflector systems to deliver precisely controlled lighting
to the subject. He has also developed a new series of lighting reflectors
for the professional photographer. The shape of these new reflectors is
unique in the world of lighting. These reflectors provide 100% to 200%
improvement in light efficiency over the existing technology reflector
technology and provides drastically improved lighting uniformity.
OPTICAL INSTRUMENTS
Mr. Labrum has developed numerous telescopes,
collimators, and other optical instruments and techniques for alignment of
optical systems in the production environment. He has also developed many
optical instruments and techniques for the measurement of image quality and
evaluation for the laboratory environment.
Mr. Labrum has also developed a new family of
ultra-light weight surgical telescopes for the dental profession. These new
close-focusing, surgical telescopes, are the first, truly diffraction limited
(optically perfect), surgical telescopes to be introduced into the world of
surgery.
PHOTO-DETECTION
Mr. Labrum has an extensive background in
photo-detection technology and holds several patents for his work in this area.
He has developed unique, low noise, optical heterodyne detection techniques for
the detection and recovery of complex, wideband (50MHz), electronic signals as
well as an ultra high performance photo-detector array (non-agc'ed) with a
measured instantaneous dynamic range of greater than 60 dB (1,000,000:1).
FIBER-OPTICS
Mr. Labrum has designed fiber-optic systems
operating at wavelengths ranging from 200nm through 1300nm. Applications range
from UV light delivery systems to high speed (2ghz), wide bandwidth (500mhz),
long hall (10km), FSK data communications systems.
DOD Issued Security Clearance
DOD issued "Secret" Clearance from
1979 - 1989
EDUCATION
BSCS (BS Computer Science with Minor in
Physics) University of Utah, Salt Lake City, Utah 1971
CPP Degree in Photography
1998 (Certified Professional Photography Degree)
PROFESSIONAL JOURNAL
PUBLICATIONS
"A Tunable, Variable Bandwidth, Acousto-Optic Filter," Proceedings of
the SPIE, Vol 519, pp 25-33, October 24-26 1984.
"Optimizing the Compound Reflector
Framing Spot Light," Journal of the SMPTE, Vol 87, No 10, October 1978, pp
694-699
"Size and Velocity Measurements of High
Speed Microscopic Particles," Proceedings of the Technical Program at the
Electro-Optical Systems Design Conference, Anaheim California, November 11-13
1975.
HOBBIES
Mr. Labrum enjoys;
photography, travel, archery, hunting,
fishing, gardening, piloting private planes, scuba
diving, and Mesoamerican archaeology.
REFERENCES
Business references and/or reference
letters available on request.

Labrum Optical Engineering
JOSEPH H. LABRUM
605 South 800 East
Orem, Utah 84097
Voice (801)226-2955
FAX (801)226-0433
E-Mail info@labrumopticaleng.com

There's something you should know about
Labrum Optical Engineering: It isn't just another engineering firm. If you
are looking for the out-of-the-ordinary optical engineering services and/or
out-of-the-ordinary optomechanical engineering services, Look to Labrum.



U.S. Patents Granted to Joseph H. Labrum

4,767,1988 * SAW/BAW Bragg cell *
August 30, 1988
ABSTRACT: An acoustic signal is launched as a surface acoustic wave (SAW)
by a hyperbolically tapered transducer and then reflected into a bulk acoustic
wave (BAW) by a tapered reflector. At each frequency the tapered reflector must
satisfy the phase match conditions between the SAW and BAW as defined by their
wave vectors. Let k.sub.B be the projection of the BAW wave vector on the SAW.
Then, if k.sub.G is defined to be the wave vector of the grid, ie., k.sub.G=2.pi./d,
where d is the periodicity of the reflecting strips at the frequency under
consideration, the phase match condition is k.sub.G=k.subB -k.sub.S. A reflector
designed to satisfy this condition will reflect the SAW into a BAW at any
desired angle (as specified by k.sub.B). The laser beam is then Bragg scattered
by the Baw in the usual manner. The advantage of this scheme is that the tapered
transducer separates the acoustic signals spatially so no intermodulation
products are formed. Furthermore, the tapered transducers are able to handle
higher power levels than other transducers so hat high energy acoustic signals
can, infact be used. An improvement in Bragg scattering signals can, infact be
used. An additional improvement in Bragg scattering efficiency can be achieved
by curving the reflective array in such a way as to direct the BAW so that the
Bragg angle for optimum scattering efficiency is exactly met for all
frequencies. This insures that the device can be used over a broad bandwidth
without a fall off in the Bragg scattering efficiency.
4,722,596 * Acousto-optic analyzer with
dynamic signal compression * February 2, 1988
ABSTRACT: An
acousto-optic spectrum analyzer in which the dynamic range is effectively
extended by detecting the frequency bands wherein the photo-detectors are
saturated and providing a filter to suppress (attenuate) those frequencies. With
this pre-filter, the entire amplitude of the spectrum appears to be within the
dynamic range of the photo detectors. The actual spectrum can be reconstructed
using the response of the suppression filter and the photo-detector (CCD)
output.
4,712,059 * Broadband optical processor for
determination of frequency and time of arrival of multiple signals * December 8,
1987
ABSTRACT: a
real time processor for the detection and separation of multiple frequency hop
signals and which is capable of determining both the frequency and time of
arrival for all frequencies within the specified bandwidth.
4,696,061 * Acousto-optic R-F receiver which
is tunable and has adjustable bandwidth * September 22, 1987
ABSTRACT:
There is disclosed an acousto-optic filtering apparatus which includes Bragg
cells in the signal path and in the local oscillator reference path of the
apparatus in order to permit relatively high frequency signals to be detected by
a relatively low frequency detector mechanism.
4,648,135A * photo-detector array with
extended dynamic range for use in optical signal processing systems * March 3,
1987
ABSTRACT: A
signal handling system of improved dynamic range wherein a logarithmic circuit
is interposed between the photo-diode array and other output circuitry.
4,636,718 * Acousto-optical spectrum
analyzer with expanded frequency resolution * January 13, 1987
ABSTRACT: This
invention is directed to a spectrum analyzer system which is laser-driven and
which includes standard Bragg cell and standard photo-detector array as the
output detector. In this system, the Bragg cell is driven by a bandwidth
expansion circuit which receives the typical R.F. input signal, supplies it to a
variable center frequency filter or to a bank of filters which then
down-converts the signal and supplies the signal to a real time signal storage
memory at a first signal rate. The signals are retrieved from the memory at a
second, much greater signal rate, up-converted and supplied to the Bragg cell to
effect the operation thereof in the usual fashion. This time based compression
circuit has the effect of producing an improved optical spectrum analyzer with
expanded frequency resolution.
4,210,955 * Shutter system for
stage-lighting spotlights * July 1, 1980
ABSTRACT: A
shutter system for stage lighting spotlights includes a housing having a fixed
framing gate therein which has an opening therethrough for the passage of light.
Two sets of opposing shutter blades are sandwiched, one on each side of the
framing gate, between the framing gate and one of a pair of pressure plates
which have means urging them toward the framing gate. Each shutter blade has a
neck portion which extends through a slot in the housing and which serves as a
handle in which pressure may be applied to move the shutter blade. The blades
are normally held in place by the action of the pressure plates against the
blades and framing gate.
4,151,584 * Light-collecting reflector *
April 24, 1979
ABSTRACT: A
light collecting reflector with a source of light comprises a main reflector
having a central parabolic reflecting surface and an outer ellipsoidal
reflecting surface surrounding the central surface. The main reflector is
adapted to have a source of light placed along its central axis. A secondary
reflector having a surface facing the reflector surfaces of the main reflector
and having an open central portion to allow light to pass therethrough, is
positioned in front of the main reflector so that light striking the reflector
surface of the secondary reflector is reflected back toward the reflecting
surfaces of the main reflector. The reflecting surface of the secondary
reflector is accurate with radii that emanate from the circle with its
concentric with the center axis of the main reflector.
4,136,950 * Microscope system for observing
Hi-Speed moving particles * January 30, 1979
ABSTRACT: A
microscope system for observing moving particles makes use of a television
camera for producing a continuing series of images of such particles. A source
of laser light pulses illuminate the particles with each pulse for a period
short enough to stop their movement for the camera. The light source and camera
are synchronized so that the light pulses occur only between the times that the
camera produces image-information signals. For obtaining particle size
measurements, a single light pulse during the time that the camera is not
producing image-information signals is sufficient. For obtaining particle
velocity measurements, two light pulses are required so that a double exposure
occurs at the camera during a time that the camera is not producing
image-information signals.

Labrum Optical Engineering
JOSEPH H. LABRUM
605 South 800 East
Orem, Utah 84097
Voice (801)226-2955
FAX (801)226-0433
E-Mail info@labrumopticaleng.com

SPECIAL PROJECT CAPABILITIES
TECHNICAL PRESENTATIONS
Mr. Labrum and his staff have made numerous technical
presentations and in-term progress reports to audiences all over the United
States. Mr. Labrum has also been the featured speaker/instructor at five, (week
long) International conference-workshops on high speed photography. He is also
an instructor for SPIE (The International Society for Optical Engineering) where
he teaches two, continuing education, short courses in colorimetry: Basic
Color Perception and Measurement and Advanced Color Perception and
Measurement .
NEW PRODUCT DEVELOPMENT
Designed new, noncontact optical measurement
technology to measure the diameter of fast moving extruded materials with an
accuracy of 0.0002inch. This new technology has been incorporated into a new
product line with present annual sales of over US$1,000,000.00 (one million).
LASER BASED - MEDICAL SYSTEM DESIGN
Labrum Optical Engineering (LOE) has designed
numerous laser based optical systems. These systems have included:
A visible laser and fiber-optic delivery
system for experimental dental research in the treatment of periodontal disease.
A high resolution,
ultra-violet-laser-microscope, video-camera-system for studying the size and
velocity of microscopic (0.1micron - 100micron) aerosol particles which may be
inhaled and trapped in the lungs.
A spectroscopic system to simultaneously
monitor all of the spectral lines of a multiline laser. This allowed the study
of the power dynamics and stability of the optical cavity of a mixed gas medical
laser.
LOE has also developed a unique "optical
hinge for lasers" or "articulated hinge." This new optical hinge
is very compact and utilizes lenses rather than the usual mirrors and/or prisms.
This allows a 2.5X laser beam expander-collimator and optical hinge to be
combined into one, 3-inch long package and to provide the ability to
continuously tilt, aim, or bend a laser beam by more than 5O in any
direction while maintaining diffraction limited performance.
FOURIER OPTICS - SIGNAL PROCESSING
Mr. Labrum holds a
half-dozen patents for his work in Fourier optics and acousto-optic signal
processing. His unique approach to aperture weighting (optical and acoustic) and
time base management provided enhanced methods of detecting stateoftheart
spread spectrum (Pseudo-noise and frequency hopped) communications signals in
real time, with 100% probability of detection.
OPTICAL LENS AND REFLECTOR DESIGN
Labrum
Optical Engineering has designed:
Many high resolution photographic
and television imaging lenses and complex relay imaging systems for use both
above and below (in) water.
Specialized spheric and
aspheric-reflector systems to deliver precisely controlled lighting to the
target area. These systems have included dental lights for oral surgery and
general dentistry.
Specialized spheric and
aspheric lens systems. These lens systems have been used in surgical binoculars
and specialized, light weight, head mounted surgical lighting instruments.
Ultra-high resolution,
UV-visible lens. This F#-4.0 lens was designed to be achromatically corrected
from 250nm - 1,000nm (far ultra-violet through near infra-red) portion of the
spectrum. This lens resolution is better than 40-lp/mm at more than 50% depth of
modulation. Anti-reflective coatings for this lens can be designed to cover only
a one-octave bandwidth and thus the operation of this lens is limited to any one
octave portion of the 250nm - 1,000nm (2-octave) operational bandwidth of this
lens.
OPTICAL INSTRUMENTS
Labrum
Optical Engineering has developed numerous telescopes, collimators, and other
optical instruments and techniques for alignment of optical systems in the
production environment. LOE has also developed many optical instruments and
techniques for the measurement of image quality in the laboratory environment.
COLOR TELEVISION CAMERAS
Labrum Optical
Engineering has developed several, unique, high optical efficiency,
color-separation optics systems (including 10:1 zoom lens) for professional
broadcast quality television. These designs were for both live professional
studio cameras and also 16mm & 35mm moving film-television conversion
cameras. The color reproduction accuracy demonstrated by these cameras was
superior in every way when compared to other existing live and film-chain
cameras.
PHOTO-DETECTION
Mr. Labrum has
an extensive background in photo-detection technology and holds several patents
for his work in this area.
LOE has developed unique, low
noise, optical heterodyne detection techniques for the detection and recovery of
complex, wideband (1mhz), electronic signals.
LOE has developed an ultra
high performance photo-detector array (non-agc'ed) with a measured instantaneous
dynamic range of greater than 60 dB (1,000,000:1).
FIBER-OPTICS
Labrum Optical
Engineering has designed fiber-optic systems operating at wavelengths ranging
from 200nm through 1300nm.
LOE has designed specialized
fiber-optic lighting systems to deliver high intensity, far-UV(264nm), light to
the inside surface of 500micron diameter medical catheters.
LOE has designed fiber-optic
systems to deliver laser radiation to a remote target.
LUMINAIR DESIGN
Labrum Optical
Engineering has developed and holds patents on several high efficiency live
theater stage lighting instruments. These instruments utilize a unique light
collecting reflector system and a 2-element, 3:1, variable beam angle, zoom-lens
system. This instrument was designed to replace a family of live stage luminairs
(precision lighting instruments) known as "framing, ellipsoidal spot
lights." Even though we designed these instruments over 20 years ago, these
instruments are still the performance standard by which present day
"framing, ellipsoidal spotlights" are judged.
COST PERFORMANCE TRADE-OFF'S
There are many
cost-performance trade-off's to be considered in the design of almost ALL of our
optical-mechanical-electrical systems. It is therefore very important that we
(you as our representative) interface closely with our customer and make sure
that we understand exactly what the customer needs and tailor our products to
his/her needs. This will minimize product cost and maximize customer
satisfaction.

Labrum Optical Engineering
JOSEPH H. LABRUM
605 South 800 East
Orem, Utah 84097
Voice (801)226-2955
FAX (801)226-0433
E-Mail Info@LabrumOpticalEng.com