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There are a growing number of Laser projectors on the market. With the capability for very high lumens. Laser are vying to be top dog, in all highend categories.
ocean floor projection
Laser-illuminated projectors use arrays of laser sources illuminating a microdisplay engine. In the most common Laser Phosphor approach, a blue laser is used for creating the blue color in the final image, but the blue laser is also used to illuminate a yellow phosphor wheel, which emits yellow light. This yellow light is then split by a prism or color wheel into green and red light. Maximum color space is limited to the SMPTE standard.
Laser/Phosphor systems include the Solid State Light Source combined with phosphor to produce images that adhere to the SMPTE color space.
Single LASER Phosphor Projection System
RGB laser on the other hand, uses the so-called ‘pure laser’ technology. Here red, green and blue lasers deliver the light directly. The product of this technique is an absolutely pure colored light that is split into the three channels. The light is emitted in a very narrow band in discrete frequencies. This makes it possible to realize a color space that reaches BT2020 therefore exceeding even that of Adobe RGB.
RGB (red, green and blue) laser is the only true “pure laser” which produces the BT2020 color space using only lasers without the need for additional components such as LED or Phosphor.
3 LASER RGB Projection System
This is the main attraction, most solid state projectors are quoting 20,000 hours, some quote 30,000 hours. And this is very desirable, lower maintenance, very good for inaccessable instalations. Perfect for Churches, Halls and public spaces where time access is restricted.
After comparing projectors in our database, Laser projectors more efficient at lower lumens, with improved power consumption compared to traditional lamped systems. As brightness increases above 6000 lumens this is reversed.
Laser projectors produce excelent colour. With the highest colour gamut (widest spectrum range). Its colours are produced from three light sources, and no three light sources degrade the same way. A lamp produces all three colours, as it ages they drop off evenly. With three light sources, each colour will degrade at different rate. The colour brightness changes with time and the spectrum reduces, reds drop off the fastest.
Having said that, Laser projectors produce the best colour you can find, The longitudinal wave they produce passes through the lens, without dispersion. This keeps contrast extreamly high. High contrast gives fantastic deep saturated colour.
Cool Cat - 3 Laser, 4K, high contrast, high colour
When a Laser fails, or reaches 20,000 hours, it can't be replaced - there are no replacement lamps.
The truth is that brightness drops off with all light sources. When you reach the quoted lifespan, brightness is at 50%.
With Laser projectors this can cause an issue. if you have a video wall using 3 projectors, one lamp blows. You replace all the lamps, brightness is then matched. If one of the Laser projectors were to fail, it would have to be replaced. The new projector would have 100% brightness, the other two, depending on their age could be well below this. They may have to be replaced to match.
Some manufacturers have intoroduced a constant brightness feature, where the projectors run at say 75% brightness and can use the 25% to keep the output constant.
LASER brightness over time
Laser projectors offer a considerable increase in contrast and are also solid state. Have proved to be reliable and robust. With their very high image quality and rotational flexability the potential to stun is limitless. The future seems to be Laser.
