| Electro-Optics |
Product Development expertise in advanced Electro-OpticsVorelco's Product Development experience in Electro-Optics goes back to the late 70's working with industry pioneers like Laakmann Electro-optics that pioneered the R.F. excited CO2 surgical lasers used all over the world today. This technology was later sold to Johnson and Johnson. While working with Laakmann I became familiar with Dyn-Optics a small high tech optics company in Laguna Niguel California, formed by two ex Parker Hannifin engineers, Joesph Hall and Forrest Reynard. The two founders split up after a few years and Reynard went on to form "Reynard Corporation" one of the world's most respected advanced optics firms. Dyn-Optics stopped manufacturing optics and focused on electro-optical instruments product development.The initial offerings were basic optical monitors and reflectometers. Vorelco designed, developed and manufactured all of Dyn-Optics' products for nearly a decade. We designed the Fire Finder II a hand held infrared viewer that is used to detect hot spots, fires and other heat related hazards that often escape visual inspection. This technology is deployed throughout the U.S. military especially aboard the U.S. fleet. We developed the world's first L.E.D. based Reflectometer for use in the polished metals and street light reflector industry. Vorelco helped Dyn-Optics overcome many electronic hurdles with their product lines. We offer a full line of Electro-Optic products to several industries for use in labs and insitu manufacturing environments.
Product Development in Electro-Optical Product OEM Design and ManufacturingVorelco has developed several Optical Measurement Instruments over the years that are in use all over the world. As the sole OEM Product Development source and manufacturer of all of Dyn-Optics products for nearly 10 years. We have since focused on our own line of Electro-Optical products. Although we no longer design for Dyn-Optics we still take care of many of their customers providing best in class product development.
Vorelco Lumiscan Optical Monitor
Vorel is the source for affordable alternative product development solutions when cost performance is an issue. Our Lumiscan line of products have been compared to BYK-Gardner in accuracy and performance. The Lumiscan Diffuse Transmissometer is a 5” Integrating Sphere-based system is as accurate as the BYK-Gardner Micro Gloss costing considerably more. If you don’t need a lot of bells and whistles we can produce top quality Electro-Optical Instruments that rival the major brands for a fraction of the cost. Lumiscan Standard featuresAccuracy and repeatability Better than 1% Source stability Better than .25% Computer Interface and control USB based A/D conversion 12 Bit Remote / Local Set Point Alarm Yes Features (Monitor section)
Features (Controller section)
Features (Projector)
Features (Collector)
Lumiscan Specular Transmissometer
Features (Transmissometer section)
Features (Projector)
Lumiscan Diffuse Transmissometer
Lumiscan Standard featuresAccuracy and repeatability Better than 1% Source stability Better than .25% Computer Interface and control USB based A/D conversion 12 Bit Remote / Local Set Point Alarm Yes Features (Monitor section)
Features (Controller section)
Features (Projector)
Features (Collector)
Features (Transmissometer section)
Features (Projector)
Dyn-Optics FireFinder II by Vorelco"The Professional Firefighters' aid in locating hot spots or fires"
Product Development at its finest. The Fire Finder is a Hand held Infrared fire detection instrument used by Firefighters and the military. The unit above left left was the original FireFinder that was big, bulky, and utilized dated components. The unit on the Right was designed and built by Vorelco. As an all surface mount design using micro power technology product development with considerably more sensitivity running on readily available AA cells it remains today one of the world’s most advanced devices of its kind and is deployed by both civilian and military fire departments, even at sea with the U.S. Navy. The Fire Finder II is an infrared heat sensor used by the fire protection industry to locate fires and hot spots. The Fire Finder II has been sold worldwide. We are developing a new smaller design. We have been making Fire Finders since 1978. Dyn-Optics has a patent on the Fire Finder. Fire Finder's infrared heat sensor will detect a small hot spot that the firefighter's eyes may miss - even through a glass window. Operates in full sunlight or in a dense smoke filled room. Gives an instantaneous audible alarm where the pitch is proportional to temperature of the hot spot or fire and indicates the way to the fire area without demanding any eye attention.
The Model 955 FIRE FINDER II is a self-contained, hand-held infrared sensor that emits an audible alarm when pointed at a heat source. The hotter the source, the higher the pitch of the alarm. The response time is instantaneous and no eye attention is required to read meters or interpret lights. The FIRE FINDER II has a built-in self-test that simulates an infrared source and the unit responds by giving an audible alarm every time it is turned on, thereby assuring the user of a fully operational electro-optical system. Includes audible self-test to indicate condition of batteries and electronics. Testimonials from Fire Finder users
Approval by U.S. Navy for use in Desert Storm. "All assessment activities reported that the Fire Finder was very effective and compatible with the shipboard environment" Joseph K. Taussig, Jr.Assistant Deputy Under Secretary of the Navy (Safety & Survivability) "I have been so satisfied with the product that I have purchased one for each of my four engines. The Fire Finder increases our mop-up effectiveness substantially - while reducing our costs due to less time." Fred Roach U.S. Forest Service Santa Maria, California "Prior to leaving the fire our engine crew was told that the fire was out and that there were no smokes remaining. The engine foreman then took the Fire Finder out over the burn and found a hotspot inside a crumpled piece of tar paper."Gregory L. Carthew, Forestry Technician U.S. Forest Service Georgetown Ranger District Georgetown, California "They are worth their weight in gold. This unit has saved us hours of labor and the homeowner's property has remained intact." Merilyn J. McGee, Fire Chief Groveland Fire Department Groveland Township, Oakland Co. Holy, Michigan "We have found it to be a valuable aid in showing firefighters the need for complete extinguishment, and the need for proper overhaul." Frank L. Roma, Deputy Director Division of Fire Training Montgomery County Fire Academy Conshohocken, Pennsylvania "The Fire Finder is fantastic. Its ease of operation made it capable for just about anyone to use. All of the duty fire marshals and the fire team leaders (12 guys) prefer it to the thermal imager cameras presently being pushed by the Navy." Terry A. Klingberg, Chief Damage Controlman, QOL Div USS Ranger FPO San Francisco, California "We use your Fire Finder routinely. We credit it's use with a decrease in rekindles, a decrease in property damage, and an increase in life safety. Both the public and our firefighters benefit from its use during salvage and overhaul at residential and commercial fires. It has proven its worth in discovering hidden and deep seated fires." Captain Larry Fowler Gresham Fire Department Gresham, Oregon "Our Fire Finder....is one of the finest job and time saving pieces of equipment our department has ever owned." Randy Clark, ChiefUnderhill-Jericho Fire Department "We have found the device particularly valuable in locating hot spots which are often inaccessible." Capt. MX. McGee McGee & Associates, Inc. Marine & Cargo Surveyors Wilmington, California "We have had 100% positive response from all the users, private and public, that purchased and evaluated the Fire Finder. G. Saccardi, President Relmec S,A.S., Rome, Italy Europe and Middle East Distributor
DYN-OPTICS Experimental Fire Finder application for NASCAR
262 Table-top Specular Reflectometer 
Vorelco developed this product for Dyn-Optics to address the measurement of small and curved reflectors. The source is a photopic LED. Both the source and reflected light is routed through a single Bifurcated ruggedized fiber optic bundle by Cuda. In operation the measuring probe is touched to the surface to be measured and the reflectance is displayed on the digital meter. The instrument is calibrated by inserting the measuring probe into CAL-PORT (calibration port) and adjusting calibration potentiometer so that the digital meter indicates 100%. The instrument measures the reflectance in the photopic spectral band of the surface touched by the probe. Model 262 Reflectometer features The Model 262 Reflectometer was designed for the bright anodizing industry for measuring reflectance of the curved surface of street light reflectors. There have been a number of other applications that we have made, for example: 1. Measure bar code labels 2. Measure the inside of reflective tubes for solar energy converters 3. Measure reflectance of beer cans
Dyn-Optics 262c Table-top Specular Reflectometer by Vorelco  Product Development at record pace. Vorelco developed this product from the bottom up utilizing a modulated Nichicon White LED as a photopic spectrum source. This instrument was developed for people in the bright anodizing industry to measure reflectance of streetlights and other spun aluminum reflectors. After shaping the reflector, it is bright anodized to achieve a shinny durable surface. Previously there has not been a means of measuring the reflectance of these curved reflectors in a production environment. The Model 262 Reflectometer enables the user to touch a small probe to the surface and measure the reflectance at that point. Dyn-Optics has provided this instrument to a number of leading suppliers of reflectors in the US and one in Hong Kong.
Dyn-Optics 330 Monochrometer Controller by Vorelco 
Vorelco designed and built this controller for Dyn-Optics and we continue to offer to customers all over the world.The product is used in conjunction with the 590 Monitor and other monitors and is used to control the wavelength of operation. Currently, we are making a number of them with improved design that is computer compatible. We have multi-set point versions of this controller also.
Vorelco Customized Oriel Monochromator
Vorelco can convert most any manual Monochromator into a remotely controlledinstrument using wired or wireless communication.
Dyn-Optics MODEL 590
The Dyn-Optics Model 590 is without question the most widely used optical monitor in the world. It is a rather basic no frills optical monitor that provides years and years of trouble free operation. Although this technology was developed in the 80's it has seen very few design improvements and Vorelco began producing the Lumiscan line of monitors that are considered the best in class. We still repair many old Dyn-Optics monitors but we no longer recommend them as there are much lower noise higher gain solutions in electro-optic product development. We still carry an inventory of parts to build them for our die hard clients however.
Dyn-Optics MODEL 590-AS has the same monitoring characteristics as the 590, however, the unit has the capability of automatically setting the starting point for each layer, thereby reducing the operator's work load and increasing the yield on long repetitive coating runs. OPERATION OF THE DYN-OPTICS OPTICAL MONITORDyn-Optics' optical monitor utilizes a sophisticated linear photometric measuring technique to determine the reflectance or transmittance of coatings as they are being deposited onto a substrate in a vacuum chamber. Two solid state detectors and an amplifier are employed in the chopped and synchronously demodulated configuration for the maximum discrimination against spurious illumination or electronic noise, typically occurring in the coating process due to electron beam guns and heaters. Therefore, the monitor can be operated in full room light or in fluctuating light levels (such as those which occur during electron beam deposition) without any loss of sensitivity or linearity with negligible noise. The monitor consists of a chopped quartz halogen light source, a receiver including viewport to aid the operator in alignment and servicing, a narrow band-pass filter cassette for wavelength selection, and a solid state amplifier with both analogue and digital display for operator convenience and diagnostics that will audibly and visibly indicate operational problems. A typical configuration of an optical coating system is shown at the left. The light from a quartz halogen lamp is modulated by a constant frequency chopper wheel. The light is then collimated and projected upward toward the substrate or a glass monitoring chip inside the vacuum chamber. The light is then reflected downward into the receiver. The receiver can be mounted so that it can measure either reflectance or transmittance. The receiver consists of focusing optics, an alignment viewport, a narrow bandpass interference cassette, two detectors, and a preamplifier (to minimize electronic noise). INTERFERENCE MONITORINGThe optical monitor operates on the principal of optical interference between the deposited film and the substrate. Specifically, as the film is being deposited onto a witness glass, there is a reflectance at the vacuum-film interface and the film-substrate interface. There is a well-known relationship between the interfer¬ence induced maxima and minima of reflectance and the index of refraction and the optical thickness. The optical thickness and index of refraction of the various layers of a coating design is generated by a computer and the routing operator duplicates this design in the vacuum chamber. By tracking the maxima and minima of reflectance, the operator can control the optical thickness deposited accurately and thereby fabricate a coating that duplicates the design. CHARACTERISTICS OF OPTICAL MONITOR COMPARED WITH CRYSTAL MONITORThe optical monitor is more accurate than a crystal monitor in the fabrication of coatings since it determines the actual optical thickness of the layers as they are being coated while the crystal monitor measures the change in frequency of a quartz crystal as it is coated. The change in frequency is related to the mass of the film which in turn is correlated to the optical thickness. The optical thickness is dependent upon all the characteristics of the vacuum chamber during coating such as degree of vacuum, temper¬ature of substrate, rate of coating, type of substrate, history of coating material, rate of oxidation, cleanliness of the chamber, etc. Thus, the optical monitor measures the true optical thickness regardless of the chamber conditions while the crystal monitor measures the frequency change of the quartz crystal which is indirectly related to the optical thickness and often does not provide accurate information of optical thickness. As a consequence, the coating often does not duplicate the design.
Accessories for 580-D Optical MonitorFILTER HOLDERS The optical monitor is supplied with either a four position filter cassette or a 2x2 inch filter holder. The filters in the four position cassette are permanently mounted and the wavelength is selected by rotating the cassette to the desired value and inserting into the optical path. The optical monitor can also be modified to operate with a monochrometer in the receiver. PERISCOPE, WINDOW AND GIMBLE ASSEMBLY The periscope, window and gimble assembly enables the radiation from the optical monitor to be directed through the vacuum collar to the chip changer and finally back out the collar to the receiver. ROTARY FEEDTHROUGH The chip changer is activated, to drop a monitoring chip, by a rotation motion through the vacuum chamber. The rotary feedthrough provides a convenient means of transferring rotary motion through the base plate of the vacuum chamber. CHIP CHANGER The chip changer is employed to hold glass monitoring chips that are used to measure the thickness of each coating layer.
Dyn-Optics MODEL 320 WAVELENGTH CONTROLLER AND MONOCHROMATOR
MODEL 320 WAVELENGTH CONTROLLER AND MONOCHROMATORFEATURES Operation in full room light without affecting accuracy Easy to read wavelength display on control console Easy to adjust wavelength of monochromator Wavelength accuracy to better than +0.2%ES. Memory to retain wavelength even when equipment is turned off Complete instruction manual Two year warranty Optional computer operation of wavelength controller GENERAL The Model 320 Wavelength Controller and Monochromator is used in conjunction with the Dyn-Optics Model 580-D or 590 Optical Monitor to select the wavelength of operation for the Monitor. The Monochromator has the advantage of an infinitely variable wavelength selection compared to the fixed wavelengths of the filters. Furthermore, the wavelength of the Monochromator can be easily adjusted from the control console and the wavelength will be retained in memory when the power is turned off. The Monochromator is driven by a variable speed stepper motor for accurate setting. The operator can vary the wavelength scan from slew for rapid wavelength adjustment to 1NM increments for accurate wavelength adjustment. The Monochromator entrance slit is located at the end of the Optical Monitor barrel. A small periscope allows the operator to center the incoming light beam on the entrance slit. The focus lens is adjusted for maximum throughput. The wavelength is adjusted with a stepper motor and determined by means of a precision potentiometer and voltage divider network. The detector is either silicon for the visible and near infrared or lead sulfide for the infrared to 2500NM. Provisions are made for second order suppression filters and wavelength calibration filters. The Monochromator wavelength is controlled by the Model 320 Wavelength Controller located on the instrumentation panel of the coating machine. The Model 320 Wavelength Controller and Monochromator is integrated into the receiver of the Model 580-D or 590 Optical Monitor. Thus, in addition to the Wavelength Controller and Monochromator components, the Monochromator has to be installed into the receiver between the barrel containing the collecting and imaging optics and the detector containing the silicon and lead sulfide detectors. When the Monochromator is used, then no filters are required. However, an "Order Sorter" filter may be required to eliminate the second order radiation from the diffraction grating. These "Order Sorter" filters are inserted in the filter slot in the receiver. Provisions are made so that with upgrading, the wavelength can be controlled from a remote computer. If the light from the Monitor and Monochromator are reflecting from a completely coated sample, then a reflectance scan of the sample can be made over the spectral range of the monochromator and the data stored in the computer. If previously a reflectance scan of the uncoated sample has been stored in the computer, and the spectral reflectance of the uncoated sample is known, then a normalized reflectance scan of the coating can be outputted from the computer. SPECIFICATIONS Wavelength accuracy: +.0.2%F.S. Wavelength range: depends on grating Bandwidth: depends on grating and slit width Drive: bi-directional, variable speed with lock at stop ORDERING INFORMATION When ordering your Model 320 Wavelength Controller and Monochromator, please have your Purchase Order specify the following standard items: l ea Model 320 Wavelength $6,895.00 Controller and Monochromator consisting of the following items: 1. Remote Wavelength Controller - 19 inch rack mounted 2. Monochromator and grating to operate over desired wavelength range 3. Cable to connect Controller to the Monochromator (10ft) 4. Power connector wire 5. Stepper motor and feedback potentiometer integrated into Monochromator 6. Order sorting filter when necessary 7. Instruction Manual These are the components necessary if you integrate the Monochromator into the Monitor. If you want Dyn-Optics to integrate the Monochromator portion of the Model 320 into the receiver barrel of your Model 580-D or 590 Monitor, then in addition to the Purchase Order indicated above for the 320 Wavelength Controller and Monochromator, a second procurement is required for integration as indicated below: 1 ea Integrate Monochromator into $980.00 customerd supplied receiver barrel of 580-D or 590 Optical Monitor. This integration consists of the following items: 1. Modifying receiver barrel to incorporate Monochromator 2. Provide mounting plate to support Monochromator and Receiver 3. Provide periscope for aiding in visually aligning slit with focused light beam
DYN-OPTICS CONTINUOUS (WEB) COATING INSTRUMENTS
Continuous (Web) Coating Monitoring Dyn-Optics built a four-channel Model 544 Transmissometer for 3M. We have built a number of units for 3M over the past years. They have been one of our best customers. The continuous coating industry is enormous. For example, they coat aluminum layers on plastic by the mile for plastic bags (potato chips for example). Our monitor measures transmission through the film. The aluminum thickness is controlled - too thick and you waste aluminum and the coating process is slow - too thin and light, water vapor and oxygen penetrate the bag and bacteria grow thereby reducing the shelf life of food in the bag. Ideally the coating greatly increases shelf life of perishable goods. Dyn-Optics made an instrument for PPG that is used for monitoring visible transmitting heat rejecting window glass coatings. Dyn-Optics made instruments monitoring transmission of polarizing film. DYN-OPTICS MODEL 435 CONTROLLER
The MODEL 435 CONTROLLER is an analogue computer used to monitor and control a two layer coating process. The instrument monitors the transmission of the first layer and compares the measured value to the specified value of the first layer. It provides an error signal that is the difference between the measured and specified value The error signal is inputted to the monitor for the second layer and is used to alter the specified value for the second layer to compensate for errors in the transmission of the first layer. If the transmission of the first layer exceeds the limit where the correction process is feasible, the instrument signals the operator to correct or stop the process. DYN-OPTICS MODEL 435-2 TRANSMISSOMETER
Dyn-Optics Model 435-2 Two Channel Transmissometer measures the transmission of film at two positions across a web at a selected wavelength or spectral band in a continuous coating installation. The instrument then compares the measured transmission with the desired transmission and computes an error signal that is proportional to the difference between the measured and desired values. The error signal is used to control the coating rate in order to achieve a minimum error. The error is positive or negative depending if the desired transmission is greater or less than the measured value. The digital meters display the desired transmission and the measured transmission for Channel 1 and Channel 2. The error between the desired and measured transmission for each channel is also displayed. The instrument outputs at the rear an analogue voltage proportional to the desired transmission the measured transmission and the error signal. The measuring optics are connected to the remainder of the unit by fiber optics. With Desired Transmission Input and Error Signal Output The instrument can be used in applications in air or within a vacuum chamber. The purpose of the instrument is to control the deposition rate of the coating in a production coating plant so that the actual measured transmission matches the desired transmission as closely as possible.
DYN-OPTICS MODEL 435-3 TRANSMISSOMETER
The Model 435-3 Three Channel Transmissometer with tolerance watch measures the transmission in three channels and at a selected wavelength or band. The instrument is intended to be used in the continuous coating operation either in a vacuum chamber to monitor the coating transmission or in the QC laboratory to verify that the transmission is within prescribed limits. The transmission is also shown on a digital meter for each channel. The transmission measuring components are connected to the signal processing electronics by fiber optics. The output of the instrument is an analogue voltage for each channel that is proportional to the transmission. The upper and lower acceptable tolerance limits are entered and displayed on digital meters. If the transmission measured falls within the window defined by the upper and lower tolerance limits, then the instrument does not output a signal. If the transmission in one or more channels is outside of the allowed transmission window, then the out-of-tolerance light flashes for the channel or channels that are out-of-tolerance. Furthermore, when an out-of-tolerance condition exists, then a signal is provided that can be used to sound an alarm or otherwise alert the operator that an out-of-tolerance condition exists.
Dyn-Optics 5400 Table-top Specular Transmissometer 
The Model 5400 Transmissometer. This instrument is 10 inches wide, 8 inches deep and employs an electronically chopped LED as the illumination source. Various wavelength LED's or a white light LED are available as illumination sources. In addition, a white light LED projects onto the stage to define the area being measured. The instrument has a decade gain of XI, X10 and X100 so that small values of transmission can be measured.
Dyn-Optics Model 325R Reflectometer
The Model 325R Reflectometer measures simultaneously the specular reflectance of samples on the stage. The instrument is available for angles of incidence of 0° or 15°. The wavelength of measurement can be selected. Zero suppression enables the operator to suppress the reflectance of the first surface so that the reflectance of the second surface only is measured. This instrument is particularly valuable in making many reflectance measurements in a production environment with little input from the operator. Measures transmission and/or reflection of optics or Si wafers on the stage of the instrument. Measures transmission and/or reflection at 12 wavelengths at a remote location by means of fiber optics. Dyn-Optics Model 325-2 Reflectometer/Transmissometer
The MODEL 325-2 T/R Two Position Transmissometer / Reflectometer measures simultaneously the transmission and reflection at two radial positions on an optical disk. The instrument is calibrated with a known reflectance at the two radial positions on the disk. Similarly, the instrument is calibrated for transmission with nothing in the optical path and adjusted for 100% transmission. The instrument is used in quality control to verify that the disks have a specified transmission and reflection. Furthermore, the circumferential uniformity can be determined by rotating the disk.
Dyn-Optics Model 325T/R Reflectometer/Transmissometer
MODEL 325 T/R TRANSMISSOMETER / REFLECTOMETER for the measuring of transmission and/or reflection of samples Four decades of sensitivity Synchronously demodulated amplifier for accurate low noise operation Wide band spectral sensitivity - 350 to 1000NM (to 2.6 microns with infrared optics) Rigid metal test stand Operates in full room light without adverse effects Measures transmission and reflection simultaneously without changing components Complete instruction manual Two year warranty Four position filter cassette for each channel i.e. transmission and reflection Optional motor driven stage to enable the instrument to automatically move a sample to a specified number of positions for measurements Optional electronics to enable the instrument to automatically make a measurement at each specific position and output the information to a computer or other device for data recording. GENERAL The 325 T/R Transmissometer / Reflectometer can measure reflectance and transmission simultaneously. The basic unit projects light downward toward the stage where the test sample is located. In the reflectance configuration, the detector is located above the test sample in a position where the reflected light falls. In the transmission mode, another detector is located below the stage and measures the transmitted beam. The electronics is essentially the same in reflection and transmission. The wavelengths are defined by filters in a cassette and enables the instrument to operate between 350NM and 1100NM. Wide band or photopic operation is also possible. The unit is housed in a rigid metal test stand that supports the optical system, test sample, electronics and display. The 325 T/R instrumentation consists of a sophisticated electro-optical detection and amplifier system that is the synchronously demodulated configuration for maximum discrimination against spurious illumination and electronic noise. The transmission and reflectance is displayed on a 3-1/2 digit meter. Optical density is displayed in the density mode. APPLICATIONS The Reflectometer is employed in the following applications: Reflectance of uncoated silicon wafers to certify surface finish. Reflectance of coated silicon wafers to verify the aluminum. Reflectance of photomasks to verify a low reflectance of short wavelengths. Reflectance of optical storage disks to verify low reflection at infrared reading laser wavelengths. Reflectance of compact disks to measure uniformity of coating. Reflectance of witness samples of optical coating to verify adherence to specifications. SPECIFICATIONS 350NM to 1100NM; can be extended to 2500NM with infrared detector option. Narrow bandpass filters in a four position filter cassette. Can also operate with wide band or with photopic filters. Specular and diffuse reflectance and transmission. 100% to 0% reflectance, 100% to 0% transmission +0.5% compared against reference standard Repeatability: Substrate Stage: 100% Adjustment: Incident Angle: Beam Size: Operation Environment: Output: +0.2% Fixed (Optional movable) Transmission and reflectance 0° 20MM or smaller diameter Can be operated in full room light without affecting accuracy. 0-1 volt corresponding to 0 to 100% transmission or reflectance at rear of unit.
ORDERING INFORMATION When ordering your 325 T/R,please have your Purchase Order specify the foll |
