Some time ago I became aware of a source of Raytheon Thermal Eye 2000AS A-Si microbolometer (not BST) thermal imaging cores. These were not the usual used cores pulled out of old Fire Fighting cameras, they were boxed NOS (new old stock) ! Some readers may recall that used and new old stock Raytheon cores were being sold in the USA by SPi. whilst the prices were not unreasonable in many cases, buyers outside the USA need not apply as SPi refuse to ship these cores internationally. The core that forms the basis of this post is located within Europe and can be shipped to European destinations that are not on UK sanction or prohibition lists.
A little history on the Raytheon Thermal Eye 2000AS core might be helpful here.
The Thermal Eye 2000AS is an A-Si core rather than VOx. In the early years of A-Si microbolometer production, these sensors had not been captured by the US BIS Dual Use Technology regulations. The core produced a decent thermal image of 160 x 120 pixels with a frame rate of 20fps. this made the core eminently suitable for use in both Military and civilian applications. The 2000AS core appeared in many civilian roles as thermal observation viewers/scopes and fire fighting cameras. The performance of this new core was excellent when compared to the common BST imaging cores, though the resolution was lower. The 2000AS offered the advantages of a more compact format, no chopper wheel and relative ease of export from the USA to European manufacturers.
Raytheon designed the Thermal Eye 2000AS series of cores to be very compact and versatile. The military applications of the core for observation scopes or weapon sights were well catered for in the cores physical layout. The microbolometer is bonded to an FPC and was ahead of its time in this respect. The aluminium lens housing incorporates the microbolometer, FFC shutter and whichever lens is desired for the application. The two image creation and processing boards are connected to the aluminium Microbolometer-lens block via an FPC for the boards are easily configures to suit the desired case format. The core is also designed to be powered from either a low voltage or higher voltage supply. The low voltage supply is for portable operation using two common 1.5V AA Alkaline cells. No surprises where such a compact low voltage power source would be useful..... personal observation equipment and rifle sights ! The higher voltage option accommodates use in various platforms that have great power supply options available, such as fire fighting equipment (6V/7.2V/9.6V/12v), land vehicles (12V/24V) or UAV's. This is intended to meet the needs of many deployment roles
OK, so why am I reviewing this Circa 2004 core now ? Well I have several fire fighting thermal cameras that utilise this venerable 2000AS series core but I had always wanted to get my hands on a nice bare core at a reasonable price. It was often cheaper to just buy a whole thermal camera than just a 2000AS core ! I hate tearing apart a perfectly good thermal camera just to extract the core, if such can be avoided. I told a good friend of my desire to own a nice example of the Thermal Eye 2000AS core as it has a very definite place in history as a milestone in camera core development. I was very surprised when he offered me a 'new old stock' core that was still in its box, complete with test document ! Such a core is a true rarity and would normally be very expensive from someone like SPi and even then, as I have said, such a core would not be shipped to me in the UK
I purchased the 2000AS core from my friend and I am thrilled with it. Thankfully the user and integration manual is in the public domain so this core can be built into a complete thermal imaging system if desired. It makes a great basis for a DIY thermal imaging camera or scope and very little additional equipment is required to do so. The results can be excellent. Very unusually, my friend has more than one of these cores available so I enquired whether he will be selling them. After some checking on the shipping regulations I now see that he is offering these cores for £150 each within Europe. Sorry USA, the same problem exists for shipping to you as you shipping to Europe ! The core is complete and includes a 8mm Germanium lens (50 Degrees HFOV).
I decided to raise a post on this interesting thermal imaging core as I am often asked how to find affordable thermal cores that provide decent performance. I am sharing this information here as a service to the forum and with no incentives or financial gain for me from any sales that result. £150 is an amazing price for a NOS Thermal Eye 2000AS core though ! Please go to the following page to see the 2000AS product listing.......
http://fire-tics.co.uk/spares.htmI attach some pictures of my 2000AS core, including some photo bombing by Bailey and Oskar !
Below are useful links to the source of the cores and technical information:
http://fire-tics.co.uk/http://fire-tics.co.uk/project1/index.htmhttp://fire-tics.co.uk/spares.htmhttp://fire-tics.co.uk/forum/http://fire-tics.co.uk/project1/ControlIR2000AS.pdfhttp://fire-tics.co.uk/project1/2000ASuserguide.pdfFraser