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Numéro 84

La lecture de notre bulletin d'information, Photonics News, vous maintient à jour. Toutes les nouvelles technologiques et nouveautés produits, aussi bien que l’information sur l’actualité de LASER COMPONENTS sont disponibles sous cette forme concentrée. Souscrivez aujourd'hui - gratuitement !

The Theater of Billions of Colors

Almost Better than Real Life


Audio, color, widescreen format, surround sound, computer-animated 3D monsters: Since the beginning of film history, producers and cinema operators have been trying to offer their audiences more and more technical innovations. As soon as new technology appears, the dream factories are the first to test whether it can be used for their purposes. We are hardly familiar with film reels anymore; “digital cinema” has been widespread for about 10 years.

While in the early days of digital cinema we were surprised not to see any pixels, we overlooked difficulties with the color display of particularly bright or dark colors. Film tears were forgotten just as quickly as the typical image graininess of 35 mm films. Today, standards are being discussed and solutions sought for higher contrasts and better shading. With digital projectors, different technologies vie for attention.

The latest innovation includes RGB laser projectors, in which the monochromatic light of red, green, and blue laser sources produces a sharp image. Reaching 30,000 to 70,000 ANSI Lumen, they are considerably brighter than other light sources, which allows tham to guarantee a “premium movie experience” on even larger screens. They do not seem to know any limits with the resolution either. This depends largely on the control electronics. In autumn of last year, seven movie theaters in Germany were equipped with pure laser projectors. This new technology is also financially attractive in the long term because the power consumption is lower than with conventional xenon lamps. Some suppliers estimate the power savings of the laser sources at 50%.

Cinema projectors have little in common with home entertainment systems or conference room projectors. For example, they require significantly higher luminosity than the versions for the living room: We compare 300 W (UHP lamps) with up to 10 kW (xenon lamps) in cinema projectors.
Nevertheless, laser projectors are also interesting for home entertainment. Color accuracy, brightness, high resolution, and freedom from maintenance delight enthusiastic film fans. State-of-the-art laser projectors are so attractively designed that they disappear inconspicuously into sideboards, cast an image onto the wall during the day, and project films in the evening.  Although this is still more of a hobby for millionaires, we are curious to see how optoelectronic components will continue to change our everyday lives.


Power for Colorful Light

Our partner NECSEL also offers laser sources for projectors. The maximum power depends on the color. Green lasers (532 nm) emit 3.5 W, blue lasers (445 nm) emit 10 W, and red lasers (640 nm) emit up to 8 W. In addition to projection, such lasers are also used in medical technology, forensics, and lighting.


Further product information:
Lasers de Haute Puissance dans le Rouge
Lasers de Haute Puissance dans le Vert
Lasers de Haute Puissance dans le Bleu



Contact Person:    Manuel Herbst
Company:    Laser Components GmbH
Address:    Werner-von-Siemens-Str. 15
ZIP / City:    82140 Olching
Phone:    +49 (0) 8142 2864-91
Fax:    +49 (0) 8142 2864-11

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Claudia Michalke

+49 (0) 8142 2864-85