Projectors are what Just Projectors have been specialising in for the last 19 years. We provide advice on the phone listening to your requirements and although we are not a retail high street shop, this would increase our prices to cover the overheads but we are able to help you get the right projector as we have trained staff ready to receive your call to ensure you get best value for money and exactly the one for your needs . We have a network of projector installers to cover your area. On higher end models we can arrange a loan or demo. To understand what the benefits are of a projector, it is useful to know exactly what a it can do and also the different type of technologies which will help you decide which maybe say more useful as a business projector rather than say a home cinema projector set-up. Most are HD Projectors or HD Ready- there is a difference. When you buy off Just Projectors you can be sure that we are large enough to get you good pricing but small enough to treat each customer with care. We do have a telephone number and trained staff answering the phone. Just Projectors supply a range including BenQ DLP projectors, Sony LCD Projectors, Epson LCD projectors - a full range from entry level through to very high installation projectors,Infocus projectors are a big brand for us, we find that they have excellent pricing offering cheap projectors but good value being the important thing with lots of features and an excellent warranty, Panasonic and many more. We offer bulk buy discounts which are often useful when buying education projectors, we are very popular for church projectors and we do offer an installation service. Our website allows you to filter down to your exact requirement but we feel it makes sense to call us to check you are getting the best value and often cheapest projector to meet your requirements. We are in the top 3 of projector specialists in the UK, focusing on all aspects; business, home cinema and projectors for schools. We believe we offer value not just cheap projectors UK warranty rather than through other European countries which don't have the say high level of UK warranty or ease in which to get repaired. Just Projectors supply the UK but also a projector for Ireland, we offer a 2-3 day service to Ireland.
DLP Projectors- which stands for digital light processing , a tiny microchip around since 2008 and has been the major change to projectors in recent years, helping drive prices down and improve contrast ratio. DLP has evolved so much since the first few years and has seen the emergence of Brands such as BenQ. So DLP work in a different way from LCD Projectors.DLP work by thousands of mirrors set out in an array of pixels to replicate the projectors resolution. Each mirror is thinner than a firth of a human hair. With the use of hinges the dlp chip mirrors create light and dark pixels by being either off or on. The white light generated then is shone through a colour wheel of up to six colours. The human eye sees all the colours and the result is a full colour image. DLP are that they do not require you to maintain the machine regularly as they do not any filter, are lighter and lower lamp life costs,They are high contrast ratios giving vivid blacks. Not all DLP are the same, the more segments in the colour wheel the better the colours and also the faster the colour wheel the less chance of the rainbow effect. So after reading all this about DLP you might wonder why we sell other types such as LCD or Lcos Projectors, and in the past you could say that DLP struggled with accuracy of colours and the annoying rainbow effect, which some of the cheap brands suffer from, the better made DLP brands such as BenQ, NEC, Viewsonic, Infocus it has almost disappeared. DLP lamps tend not to fade so the projectors will be as bright on the first day of use as they are 2 years down the line.
LCD Projectors have been in existence longer than other technologies offering fantastic colour reproduction. 3LCD projector work with three liquid crystal panels , a lamp , prism and filters. In lamp shines white light through a polarizing filter, then a series of mirrors .Red green and blue are then sent to a separate LCD panel; send the light through the prism which recombines the light and sends it out the main lens, against which it is projected. Accuracy of colours is why people choose LCD projectors, and on the higher range models where higher brightness is required and a better throw ratio. Lamp prices are higher. LCD brands are Epson, Panasonic (took over Sanyo Business), NEC and Hitachi.
Lcos or Liquid crystal over silicon projectors are a hybrid of LCD and DLP and before the improvements in both LCD and DLP was a very desirable if not more expensive option but things more on and the gap is getting smaller but the price of Lcos hasn't really seen much reduction. LCOS will produce the most accurate video that is capable of far better than either LCD or DLP. How does Lcos work, light passes through these LCD panels on the way to the lens and is modulated by the liquid crystals as it passes. Lcos uses liquid crystals instead of individual mirrors. Three LCOS chips not unlike 3 LCD panels. The end result is a very high resolution image,often the contrast ratio on a Lcos is often restricted to around 500:1, lamp life is often shorter with them not achieving much more than 1500 hours so cost of ownership tends to be very high. And finally they are not any ultra portable LCos projectors .LCOS technology is usually very high resolution, and typically higher in price than most LCD and DLP products. Typical manufacturers of Lcos are Canon and JVC.
Brightness of a should be projector the Ansi lumens, cheap Chinese brands will state a lumens rating but it might say 3000 and actually be 800 or less as it hasn't been measured against a the ANSi standard. It's important to get the right lumens for the right requirement. We recommend 1800-2500 lumens for home theatre and over 2600 lumens for the business projectors and Education projectors. For audience size of more than 50 people, you need a larger projector screen which means more lumens. Large venue projectors or meeting rooms then 3500 lumens upwards. Mobile projector which usually are not so bright. Ultra short throw projectors have lower lumens output as the image doesn’t have to travel so far and the ambient light has less effect on the projector image. Typically ultra short throw projectors are around 2000-3000 lumens.
Resolution is the number of pixels that the projector displays its native resolution, the most important thing is to look at the native resolution not the supported resolution often the cheaper unknown brands. Everyday we get a call from someone saying they thought they had a HD projector but it only supported HD and the number of pixels are less than a 50th of what you would expect. Lowest resolution is SVGA (800x 600) a 4:3 format. Cheapest projectors and only buy these is you have a very low budget. SVGA just look on your computer and change the display to 800x 600 and you will see that it is quite poor. If however you only want to use a it for showing Dvd’s or video content then SVGA would be suitable.
We sell more XGA (1024 x 768) 4:3 format than any other type; although surprisingly this isn’t the resolution most people pcs or laptops run at but as these are the most affordable and there are more of these than any others available. Probably people buy XGA because they have always purchased XGA. So think do I have a widescreen monitor, if the answer is yes than buy WXGA. XGA projectors are ideal for Powerpoint presentations, training room projectors and education projectors.
WXGA projectors (1280 x 800) 16:10 format should be the natural choice now as applications are going more widescreen so you can enjoy more content on your projected image. WXGA projectors also have the benefit that they mimic a HD resolution 720p, so if you wanted to have a business projector but also take it home and maybe use it for gaming then it would be more suitable than an XGA projector. WXGA also have the advantage that if you want to change from 16:10 format to 4:3 then you would lose quality. WXGA projectors are our suggested choice now for business projectors, the multi format ability and the native widescreen makes them future proof.
1080p Full HD (1920 x 1080p) 16:9 format is the fastest growing resolution for both business and home cinema. 1080p is the the quality you would expect to see with Blu-ray. Why not give us a ring and find out what home cinema projector is best for you. We have a full range lots of choice at low to high end pricing, we ensure you get the best value for money projector. The change in quality from xga or wxga is huge and the price is now good. Video projector when looking for the smoothness of the image quality, you don't want any juddering which can be really annoying so there are some 1080p projectors that are really only data projectors and that tends to reflect in the price, often then have only 4 segment colour wheels or slow colour wheels which make them prone to the rainbow effect. So it's true to say that there are 1080p projectors, but not are all equal, if you want the best hd projector then you will need to spend over £600 if you want a home cinema projector, if you want just to show in hd say for a business projector then there are cheaper options around the £500 mark.
SXGA+ (1400 x 1050) a 4:3 format only sold by Canon with their XEED range has always been a niche resolution mainly for camera clubs and photographers or medical use but with the emergence of more 1080p and the WUXGA projectors being able to do both 16:10 and 4:3 then it probably won't be long before SXGA+ becomes redundant.
WUXGA (1920 x 1200) 16:10 format - this is really a very high quality , reflected in purchase price of around £2000 - when you want more than 1080p.
Inputs are so important so do not ignore them when buying, every one is supplied with composite video (yellow) connection which is the simplest but poorest quality signal and at least one VGA which links to your laptop or pc. The better ones have two VGA inputs which always you display more than one input source at a time. Having a VGA output is useful when you want to display both your projector image and also to be able to view your monitor at the same time. Component video is the red/green/blue connection is a much higher quality than the composite video as it provides a correct display of the signal. S-Video is pretty much dead but still supplied is a standard . HDMI is fast becoming the must have connection as it is the basically a digital version of a scart connection and it has the advantage that it also carries audio. RS232 is basically a control connection to allow your projector to communicate with other devices such as electric screen.
Projector Throw Ratio is the most important specification which most people ignore. If you are in mobile situation you might have limited space so knowing the throw is important. If you are installing then it is vital. If you know you screen size width say in metres (SS) then multiply the throw ratio (TR) and that will say how far away - distance (D) you need to place the projector. If there are two TR's then that is the zoom within that range SS x TR = D E.g. screen size 2m , Throw Ratio 1.9 - 2.1 = 3.98m-4.2m Calculation 2 (SS) x 1.9 (TR) =3.98m away - distance the projectors needs to be from the screen 2 (SS) x 2.1 (TR) =4.2m away - distance the projectors needs to be from the screen Another example- a projector with a fixed lens- so must be placed at a exact distance SS x TR = D Eg screen size 2m , Throw Ratio 0.5 = 1m Calculation 2 (SS) x 0.5 (TR) 1m - distance the projectors needs to be from the screen So as you can see the lower the throw ratio (TR) the close or short the throw the projector is. Handy Hint 1: - If you have a tricky installation situation choose a projector that has a larger Throw Ratio range eg 1.4-2.1 which will give you greater flexibility Handy Hint 2: If you choose one with an unusually large throw or short throw then bear in mind that any installation that you set up will mean that the next time you purchase a projector you will need to get a projector with the same throw ratio, and therefore maybe limit your choice in the future. If you want to know how big an image a certain projector will produce from a certain size then the calculation is still very simple Distance away from the screen (D) divided by Throw Ratio = Screen width (SS) Eg distance away 4m , Throw Ratio 1.5 - 1.8 = 2.22-2.6m image width or screen size Calculation 4 (D) / 1.8 (TR) =2.66m width of screen required 4 (D) / 1.5 (TR) =2.22m width of screen required So at 4m the image size will be between 2.22m and 2.6m An example- a projector with a fixed lens- so must be placed at a exact distance D/TR = SS E.g. distance away 4m , Throw Ratio 2 Calculation 4 (D) / 2 (TR) =2m width of screen required This means if you need a larger or smaller image then you have to move the projector as there isn't any zoom on the lens Every one of projector pages has a projector throw distance /screen size calculator too to make it easier for you
The last thing to mention is what is the future of projectors, certainly getting smaller for the mobile presenter, led technology has seen the emergence of the pico projectors or micro projectors which weigh less than 50g’s and Just Projectors believes that the low lumens output will be resolved within the next 5 years. Led projector with a combination of DLP technology has also seen the first lamp free projectors being made available, notably the Casio XJ-S range. They have a lamp life of 20,000 hours and without the mercury in any lamp is now the green option. 3D Projectors have always been available but now they are affordable. Using active technology DLP projectors can now show 3D using a single projector using the active shutter glasses and the prices are under £500 for a 3D solution. Hopefully you would have found this article useful but please contact us at Just Projectors for all your needs.