Laser Pico projector by Microvision

The pico projector uses thin color laser beam to project video images. It does not need to focus. It is small enough to fit in a cell phone.

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Category:

Science & Technology

Tags:

• Laser
• Pico
• projector
• by
• Microvision
• 微型激光投影機

[traceurpaul]

the future =]

[cplai]

Another application of this is not printing the image on a surface, but instead reduce the laser power low enough for the human eyes and simply scan the projection onto the retina directly. The projector can be mounted on an eye glasses frame and the laser bounced off the lens of the glasses. no focusing device needed because the image is "printed" directly on the retina. Just turn your head towards the dark and you can watch a movie inside your eyeballs. Ideal display for computer.

[cjeam9199]

@cplai I don't get the image-onto-retina thing. The light still needs to pass through the lens of the eye, so the image must be produced at a focus that the lens will correct for, so unless the lens dioptre is constantly assessed and corrected for, the image will still need to be consciously focused upon by the user at a distance. And in that case how is it different to a screen? or have I misunderstood?

[cplai]

@cjeam9199 When you project a display through a lens, each pixel on the display will radiate light in all direction, the lens then focus all these beams of light back to one point on the retina. When these beams fail to converge, then the image is not focus and form a blur of light instead of a pin point reproduction of that pixel of light source. Direct printing to the retina comes from one single beam of laser from one fixed emission point aimed at different part of the lens inside your eye...

[cplai]

@cjeam9199 ... cont'd ... lens inside your eyeball. The refraction of the lens will direct the laser beam to various parts on the retina to reproduce a "scan" or "printing" of each on-and-off pixel matrix. It is analogous to a TV CRT tube where the electron gun is replaced by a laser and the phosphorus screen is replaced by your retina. The image is sent pixel by pixel to each location on the retina. No focusing is required because it is not an optical image projection.

[cplai]

@cjeam9199 view this video again and pay particular attention to the explanation on how this pico projector does not use a lens to focus a projected image. This projector places each pixel on the projection surface from one single beam of laser. Basically there is no need for a focusing mechanism, they only need an oscillating mirror to aim the laser beam at various directions. The projection stay sharp independent of how far the projection surface is.

[enantiomer2000]

This is awesome. Best of all, this displays DVD quality video.

[dorsk188]

Nice idea, but you know how this will be used. Just like cell phone cameras are used. For pictures of dicks... Except instead of everyone taking pictures of their dicks, they'll be projecting their dicks on the walls, onto cars, on the professor's back. Just suddenly, dicks everywhere...

[mexchico17]

Now wait till they put in image stabilization, accelerometers and gyro so you can calibrate where to display, and then if you are holding it with your hand, you just have to point in the general direction, but the image will barely shake. That would eliminate the need for tripods, stands or holders for the most part.

[jigibao]

great product

[smistry93]

Texas Instruments, 3M or Microvision?

wonder who's going to win the battle