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Blue laser diode takes projectors to mobiles

Posted: 05 Feb 2009     Print Version  Bookmark and Share

Keywords:laser diode  projectors  mobile devices  projection modules 

blue laser diode

OSRAM Opto Semiconductor has announced a blue laser diode that boasts an optimised TO38 package making it the smallest in its class, claims the company. This new product takes the world one step closer to a vision of tiny projectors that can be integrated into mobile devices such as cell phones and digital cameras.

Laser is the first choice as light source for these applications. It converts mobile devices into high-performance multi-functional devices that can not only record images but also present them in razor sharp detail.

The blue laser has a wavelength of 450 nm and an output of 50 mW. The voltage is 5.5 V, and the slope efficiency 0.9 W/A. It combines all the important properties for mini projectors such as small size, high efficiency and good visibility of the blue light.

As a ridge laser, it also has an excellent beam quality and therefore needs only relatively simple small optics to shape the beam.

Mobile devices currently available on the market can produce and download high-quality photos and video clips. Integrated laser projectors will enable this content to be viewed also in high quality on almost any surface.

Lasers represent the next milestone in the development of mobile devices and have a promising future in terms of integrating projection modules. They will be appreciated by end customers for their extremely low power requirements and compact dimensions. They also offer exceptionally vibrant colours and high contrast, and they always produce sharp images irrespective of the distance over which the images are projected.

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