Vivitek Qumi
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The Qumi (DPC74A1) is a pocket projector manufactured by Delta Electronics for Vivitek.[1] It was released in May 2011.
Description
[edit]The Qumi is a portable, 3D, LED-powered projector based on Texas Instruments' 3D-Ready DLP Pico HD chipset[2] and Luminus's Phlatlight PT-39 LED light.[3] Its native resolution is 1280×800, and it is able to project up to 1920×1080.[4] The projector has a built-in microSD card slot and a remote control for the built-in media player.
It weighs 617 grams, and consumes 53/17 watts in normal/eco mode. It has a phlatlight-based LED light source rated for an estimated 30,000 hours of operation. Its brightness is 300 lumens, and at 60" diagonal image measurement was 198 lumens.[5]
Qumi has only HDMI 1.3, it is not HDCP compliant for 3D playback, 3D works only with PC via HDMI and analog VGA port, with DLP Link[2] and IR glasses, in 800×600, 1024×768, 1280×720 (VGA only), at any 120Hz capable graphics card.
Supported resolutions
[edit]The Qumi can accept an input resolution up to:
Critiques
[edit]Users reported some issues with the Qumi.[6] The unit requires between 5 and 15 minutes to focus at warm-up, this is because the new generation LED based portables have plastic lenses. One can use a generic AV cable by reversing the RED and YELLOW inputs. RED is video on the Qumi, not the industry standard YELLOW. The built-in speaker is quiet, and the 3D has been described as usable only in the dark.[citation needed] Some customers have reported chromatic aberration issues. In 3D mode 1280×720 at 120Hz, the picture is blurred.
References
[edit]- ^ "Vivitek Enters Pico Projector Category with LED-Based Pocket Projector". www.businesswire.com. 6 January 2011.
- ^ a b "DLP products | TI.com". www.ti.com. Retrieved 9 November 2023.
- ^ "Luminus Devices: PT-39 Color LED". www.luminus.com. Archived from the original on 2011-10-13.
- ^ [1][dead link]
- ^ "Vivitek QUMI Projector Performance". www.projectorreviews.com. Archived from the original on 2011-11-25.
- ^ "VIVITEK QUMI LED 1280x800". AVS Forum.