Texas Instruments unveiled a new Tilt & Roll Pixel (TRP) DLP pico chipset. According to TI, this is the smallest (at 0.3″, which is strange because the previous model was 0.2″) and most efficient DLP chip ever. It support HD resolutions (probably 720p) and can be used in pico projectors and wearable displays, augmented reality displays and other applications. [via]
The new Texas Instruments 0.3″ HD Tilt & Roll Pixel (TRP) DLP® Pico™ chipset is TI’s smallest, most power-efficient HD micro-mirror array and can generate 720p displays from compact applications, including tablets, smartphones, accessories, wearable displays, augmented reality displays, interactive surface computing, digital signage and control panels. The chipset delivers significantly higher levels of brightness and power efficiency, allowing developers to create a wide variety of applications and products in smaller form factors than ever before. The chipset’s fast switching speeds of up to thousands of times per second enable the world’s smallest true color RGB engines with 120Hz video performance.
TI’s smallest, most efficient HD pico chipset 0.3″ HD TRP DLP - [Link]
Researchers at Caltech have developed a novel device which uses an integrated optical phased array (OPA) structure to project images electronically, using a single laser diode as the light source with no mechanical moving parts or lenses. From the description it seems to operate in much the same way that phased-array radars steer a radar beam by adjusting the signal phase to each antenna element in the array.
The Caltech device works at optical wavelengths, the lead researcher Ali Hajimiri and his colleagues found out they did not need traditional optics to bend light but could achieve the same result by altering the coherence of light. When two light waves are in phase in the direction of propagation they combine to give twice the amplitude and four times the energy. By changing the relative wave timing they were able to change the direction of the beam.
“Because the direction of the light beam is controlled electronically and not mechanically, it can create a sort of line very quickly,” said Hajimiri. “Since the light draws many times per second, the eye sees the process as a single image instead of a moving light beam.” Researchers said that “In the future, this can be incorporated into a cell phone. Since there is no need for a lens, you can have a phone that acts as a projector all by itself.”
New Solid-State Projector Device - [Link]
RGB (RGV actually) laser projector v2.5 – graphics and animations – [via]
This is my RGB laser projector v2.5
video part 2 – graphics and animations
Red: 300mW 650nm (2x LPC-815 laser diode @350mA, combined with PCBS)
Green: Chinese 100mW 532nm DPSS laser module
Blue (violet): 280mW 405nm (1x SF-AW210 laser diode @270mA)
Total output power (after dichros and galvos): approx. 500mW
Galvos: cheap 20kpps set
DAC used: Popelscan LPT DAC
Software: mostly NLS v1.6.7
RGB (RGV) laser projector - [Link]
The 8 pins PIC12F683 microcontroller is one of the smallest members of the Microchip 8-bit microcontroller families but equipped with powerful peripherals such as ADC and PWM capabilities. This make this tiny microcontroller is suitable for controlling the DC motor speed. In order to demonstrate the PIC12F683 capabilities and to make this tutorial more attractive, I decided to use the PIC12F683 microcontroller to generate simple and yet fascinating laser light show from a cheap keychain laser pointer.
Building your own Simple Laser Projector using the Microchip PIC12F683 - [Link]
This project is my second one with laser, I had learn many thing from my first green laser projector. Now I had decide to make a professional laser projector with 3 laser of 3 different color, Red, Green and Blue. And with galvos who have better spec. I had buy a 30kpps galvo, a 300mw red, 80mw green and 250mw blue.
RGB Laser Projector - [Link]
Gratuitous device tracks door position with laser-printed linear quadrature encoder; commands servo to aim projector at door. Projector is a thrift store 50mm camera lens, teensy scrap of laser-printed transparency, and a 1W Cree LED. Electronics is an Atmega 8 with two Futurlec reflective IR sensors and PWM output to the servo. Source code in R-ULAV tree, available at http://rocket.jonh.net
Dynamic tracking door nameplate projector - [Link]
This project shows how to build a laser projector using an Arduino, a heptagon pillbox, a cooler fan and a laser pointer. Check how it works and construction details on the link below. The heptagon pillbox scan the projection surface and produced the words. [via]
Because the mirrors are moving the reflected laser dot sweeps the screen from left to right, because it does it very quickly your eyes actually see an horizontal solid line, in this case you see 7 lines one on top of the other because the each mirror is at an angle.
DIY laser projector – [Link]
Lately I was playing with my dual color LED matrix from Sparkfun. It is a matrix of 8 by 8 dual color (red and green) LEDs that measures 5 cm by 5 cm. I just had some sprites flickering across the matrix as the magnifying glass of my “third hand” came in the way. I realized, that, if in the right distance, it will project the sprites on the ceiling. Although the projection is not very bright, it works, if the room is dark enough. Disco, here I come.
LED matrix projector – [Link]
The basic idea of TinyProjector is to create the smallest possible character projector that can be either integrated into mobile device, or linked dynamically with wireless RF connections like serial low range transceivers.It used laser diodes salvaged from cheap key chain laser pointers. A micro motor with a single swiveling servo arm, making a continuous full 360-degree rotation, drives the deflection mirror, resulting in a 38-degree left-right sweep. This leads to an unusually high overall laser projection angle of 104 degrees. [via]
TinyProjector - [Link]