Tag Archives: Projector

Making circuit boards with DLP projector


Nuri ERGİNER managed to create his own PCBs using a DLP projector and photo-resist dry film.

Every Maker like me dream a PCB printer which can quickly and precisely convert our electronic idea into a psychical circuit board. I know there are plenty of project going on the subject. (see the end of the article) What I tried here is something different, quick and precise. If you have lots of electronic idea in your mind and most of them have a high probability of fail, the system must be quick and easy.

Making circuit boards with DLP projector – [Link]

Tiny 1080p chipset enables full HD projection

TI DLP4710

by Susan Nordyk @ edn.com:

Texas Instruments is now sampling to its third-party developer network the 0.47-in. TRP Full-HD 1080p chipset—the smallest TI chipset capable of generating brighter, more efficient full high-definition projection displays from small form-factor electronics. The chipset is based on DLP Cinema technology and employs the DLP4710 digital micromirror device to deliver sharp, clear images in a compact size that enables end-user products in many form factors.

Low power consumption allows the chipset to be used in battery-powered applications, such as mobile projectors and wearable electronics. In addition, the proprietary DLP TRP architecture and adaptive DLP IntelliBright suite of algorithms deliver up to 100% higher brightness or up to 50% lower power consumption than previous DLP Pico chipset architectures.

Tiny 1080p chipset enables full HD projection – [Link]

TI’s smallest, most efficient HD pico chipset 0.3″ HD TRP DLP


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]

New Solid-State Projector Device


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.

RGB (RGV) laser projector

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

Lasers used:
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]

Building your own Simple Laser Projector using the Microchip PIC12F683

ermicro.com writes:

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]

RGB Laser Projector

www.microsyl.com writes:

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]

Dynamic tracking door nameplate projector

jonhdotnet writes:

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]


DIY laser projector

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]