AZTECH 2.5 MINI POCKET PROJECTOR
Created by : E I Z L AN / LANGKAWI ISLAND from Malaisia
| Introduction: This projector has been built and developed as small as possible for mobile use It is extremely portable where you can take anywhere you like such as camping and any other outdoor Activities. The light source is powered by adaptor ( Input ) 250V, 50Hz , ( Output ) 12V, 50W The power consumption is totally very minimum by using 12 volts 2amp. It can be unveiled as the smallest DIY projector ever build. The performance is quite good even with only 550lm of brightness and a medium resolution of 640 x 480 - but the size is awesome. You only have to spend about 130 euros to build this cute projector. 18.5cm x 23.5 cm x 11.20 cm ( aquivalent to 70% of A4 paper size ) |  |
Box's Size: 18.5cm x 23.5 cm x 11.20 cm ( aquivalent to 70% of A4 paper size )
Screen used: Posum 2.5 inches diagnol 12 V come with Small Speaker and Amp
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of Light: Halogen
bulb ( Philips ) 50W 12V c/w adaptor 250 input/ 12Volts output ( Rio
) Optical Materials ( Lens ): Magnifying lens 3 types - 75mm( Glass ) - image focus - 80 mm ( Plastic ) - to support the fresnel lens - Fresnel Lens 85 mm - Light source concertration. Weight: 1.5 Kg ( even a small girl can carry in her arm ) Cooling Fan: - 1 unit x 2 inches( Cool Air ) - 2 unit x 1.5 inch ( Hot Air ) Main box: Compressed wood and soft board Connector industry of Box: RCA Total Cost of the project: 130 Euros Time Duration: 40 hours ( 10 hours per day x 4 days ) |
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Outdistance Projection: Can throw image 7ft to 12 ft. Image Size: 24 inches ( Min ) to 70 inches in diagnol ( Max ) Projector Screen Material Pictures: Special homemade Screen ( White Cotton Painted with water based acrylic silver 60% plus pure white 40 %) |
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 Side View |
 Front View - Cool air going in through the lhole on the left. |
 Left view ( Control panel for brightness, Color and Volume ) Plus Built in Speaker |
 Right view - Hot air flow . |
 Upper View -a pen is put on the top to compare the actual size. |
 Small and compact |
 Rear View - RCA Connection and power socket 250V/ 50-60 Hz . |
 Inside the projector layout Combination of 'L' Shape type |
 Screenshoots |
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Other Function Description:
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1. POWER Input 250Volt/50Hz-60Hz 13Amp
Power socket for 250Volt 2. VIDEO IN connector This connector is used to input video signals from video equipment such as a video deck. 3. AUDIO IN L-R connectors This small projector came with audio ( mono ) input which have one unit built in speaker 0.25 watt. |
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4. BRIGHTNESS Control
These slider is to control the image brightness on the screen during operation Mode 5. COLOR Control These slider switch is to control the Color from Black and white to colorfull image on screen during operation Mode 6. VOLUME +/- buttons These Slider switch is used to adjust the volume of the sound output from the projector’s built-in speaker. |
Future Project :
To build another small size projector with combination of a new light saource such as using a white LED , I'll try to compress the size equivalent to the commercial Projector built by Sony which is only a size of 2 business card.
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15th June 2006 13:46 GMT
Sony has managed to develop a projector that is equivalent to the size of two business cards.
The performance The performance is quite weak with only 50lm of brightness and a resolution of 800×600 - but the size is awesome.
We're still a while away from a pocket projector, but Sony's new pint sized offering isn't far off the mark.
At 410cc it fits easily in the palm of your hand and would tuck away into most brief cases or handbags.
The projector uses 14 LEDs as its light source, which means it will draw a fairly small amount of power compared to traditional projectors which generally use a high power bulb. The LEDs provide a full spectrum of colour, producing red, green and blue light. Sony has stuck with three LCDs in favour of moving to DLP technology, even though DLP is a lot brighter. Sony has done some refinement to the setup of the components in this tiny projector, but it can still only manage 58cd/m2 on a normal projector screen.
However, the company has developed a special screen that allows for a brighter image, but only at a 20 inch surface. This might not be too much of an issue, as the Sony projector only offers a maximum resolution of 800 x 600, something it shares with DLP powered LED projectors.
There appears to be only a single D-sub input and the projector is powered by a small external power adaptor. So far no model number, pricing or release date have been announced. ®
Bon travail d'ensemble, dossier très détaillé.
Le résultat de projection pourra être amélioré.
Félicitation et bon courage pour la suite.
Merci pour le dossier.
astina_45
hotmail.com