A Precision Metrology System for Space Application
Opus has developed a system for assessing the performance of an instrument to be put into Earth orbit. The instrument comprises an actuation system that can move a 15 kilogram mass in all 6 axes. An optical system measures the movement in 5 axes to an absolute accuracy better than one percent and has a resolution 10 times greater.
A Very High Resolution Target Projector
Opus staff developed a system for the projection of military targets onto large domes (~20 metre diameter). The system uses pulsed copper vapour lasers in combination with solid state image generators and scanning galvanometers to produce very high brightness TV rate images on the dome surface which allow identification of the target at projected ranges of 10km. The system is in use by the British Armed Forces and other NATO forces.
High Resolution Laser Plate Makers for the Printing Industry.
Opus has designed several plate makers for customers World-wide. Systems using HeNe, YAG, frequency doubled YAG and blue diode lasers have been developed. The requirements of micron stability, diffraction limited spots, control of ellipticity and plug and play laser replacement demand very careful design. Systems also have to be designed to be athermal over the operating temperature range of the plate maker.
Ellipticities of less than 1%, spot sizes down to 12µm FWHM, 20nsec rise times and beam pointing stability of less than 10% of the spot diameter have been achieved and are in production.
With our partners, Synectix Ltd we can offer design and manufacture from component level to complete systems.
A Medical Laser for Photo Dynamic Therapy
Opus developed a laser system which delivers, via optical fibres, in excess of 1 Watt of power at 630nm. The system designed for use with specific cancer treating drugs was taken from the concept stage, through prototyping, FDA and Medical Device Directive approval and into manufacture by Opus. The project was carried out within 10 months.
Xray Film Laser Scanner
Opus developed a film scanner using polygon scanners, flat field scan lenses, and fibre optic fluorescence signal detection.
Hair Removal Laser System
The hand held instrument uses a high power Infra-red laser which is fibre coupled to a hand held scanner. The scanner uses 2 wedge scanners to scan a raster pattern over the patient. Incorporated under microprocessor control is a thermoelectrically cooled window for skin cooling, scan error checking and calibration. The system was designed and documented to FDA and MDD standards enabling early certification.
A Low Cost Spectrometer
Opus designed a low cost UV-Visible spectrometer incorporating CCD linear arrays, dual sources for the UV and visible. The system is self calibrating and is designed for low cost manufacture. It is now a successful product for our client WPA.
Laser Induced Fluorescence Scanning Spectrometer
This spectrometer scans a laser over 96 microtitre plates and measures the fluorescence spectrum on a linear photomultiplier array. The design required careful consideration of filtering of the laser from the spectrometer and self induced fluorescence.
Document and Security systems
Opus has developed several security systems for the paper and document industries. The techniques used include spectral recognition and fluorescence. The systems include low throughput, high volume front office systems, high speed back room systems and quality control systems for the paper production.