Diffraction Gratings
A diffraction grating is used in optical applications and is an optical component which diffracts and splits light into its separate wavelengths, to produce several beams travelling in different directions to the incoming beam. Gratings act as a dispersive element, and so the direction of the beams and resulting structural coloration is dependent on the spacing of the grating and wavelength of the incoming light. Gratings can be either reflective or transmissive and different gratings will cover the Ultraviolet, Visible or Infrared regions of the wavelength spectrum. Two main manufacturing techniques are used in the production of gratings and both require the production of a master grating which is used to produce replicas. Ruled Gratings are formed using a fine diamond tool that etches a series of grooves into the master grating, whereas the grooves on a holographic grating are manufactured using the interference fringe field of two laser beams. Diffraction gratings are used in the production of optical instruments such as spectrometers, lasers, optical pulse compressing devices and wavelength division devices.
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Galvoptics
View company profileWe design and manufacture optical filters including:
- Filters Dichroic
- Filters HOYA
- Filters SCHOTT optical filters with custom manufacture and stock filters
- Filters KOPP / CORNING
- Filters Photopic (eye response)
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Alrad Instruments Ltd
View company profileThrough our six technology divisions, ALRAD Imaging, ALRAD Electronics, ALRAD Photonics, ALRAD Medical, ALRAD Thermal and ALRAD Vacuum, we offer thousands of product items from the world's leading manufacturers. We also provide installation, demonstration, and product support services.
We represent many of our principals as their sole distributor in the UK. Some of these exclusive companies have been with us since the 1970s, many of our distribution agreements have been in place for a very long time and that must say something about the service we offer. The products and service we provide open up new opportunities for our customers to improve quality,automation and productivity which is why many of our existing customers have been experiencing ALRAD high quality service for decades.
Alrad employ experienced staff to help our customers generate a competitive edge for their companies backed by world class products.
Alrad are members of the UKIVA (United Kingdom Industrial Vision Association) group of organizations and companies within the PPMA ( Processing and Packaging Machinery Association).
ALRAD Imaging supplies imaging components, equipment and services to both industrial system integrators, OEMs, scientific and research customers.
ALRAD Electronics provides a wide range of optical detectors, laser products, high voltage components, optoelectronic sockets, analytical systems and densitometers.ALRAD Photonics offers Infrared detectors, power supplies, laser diode modules, photodetectors, optoelectronic components , optical filters, diffraction gratings and laser accessories.
ALRAD Medical is responsible for the marketing and sales of air disinfection systems, endoscope cameras, medical screening, molecular detection, personal protection equipment, temperature screening, UV sterilization and UV C Germicidal LED Lighting.
ALRAD Thermal is responsible for marketing and sales of automotive thermal cameras, commercial vision thermal cameras, thermal industrial cameras, thermal security cameras and thermography thermal cameras
ALRAD Vacuum provides a range of product for high vacuum and space applications including electron multipliers, long distance microscopes for vacuum chamber ports and vacuum image sensors
If you need any help in selecting the right product for your application
please call our friendly sales office on 01635 937000
we will be pleased to assist you.
