- What is the ordering process for the DLP Discovery Kits or Chipsets?
- How long does it take receive a DLP Discovery Kit?
- What does the nomenclature 0.55" XGA 2xLVDS mean?
- How are the mirrors forced to move?
- Does the DLP® Discovery™ 4100 chip set give me control over each single mirror?
- May I control the mirror tilt angle continuously?
- Is it possible to use the DLP® Discovery™ 4100 chip sets with ultraviolet light?
- Do the DLP® Discovery™ 4100 chip sets work with infrared light?
- Is it possible to keep the mirrors at rest for a given time?
- Does the mirror tilt angle change over time?
- How does the bi-stable mirror array generate grey level patterns?
- May I increase the switching rate by partial DMD array updates?
- How is the mirror array updated?
- Why do I need the DAD and DDC?
- What does DMD stand for?
1. What is the ordering process for the DLP Discovery Kits or Chipsets?
Answer: The DLP® Discovery™ products can be purchased worldwide through our authorized the a value-added resellers (VARs).
2. How long does it take receive a DLP Discovery Kit?
Answer: Please contact our VARs to understand the availabilty and delivery details for the Discovery products.
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3. What does the nomenclature 0.55" XGA 2xLVDS mean?
Answer: The DMDs are available in different size and resolution configurations. The naming convention used to reference DMDs is intended to distinguish between the various configurations. A typical DMD name consists of:
- a numerical measurement that describes the diagonal length of the mirror array (e.g. 0.55”, 0.7”, 0.95”)
- a resolution description (e.g. XGA, SXGA+, 1080p)
- a data transfer speed (e.g. LVDS, 2xLVDS)
example: 0.55"" XGA 2xLVDS means a 0.55 inch diagnol array; XGA or 1024 × 768 pixels; 2xLVDSdata transfer speed.
4. How are the mirrors forced to move?
Answer: The MEMS movement is caused by electrostatic forces.
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5. Does the DLP® Discovery™ 4100 chip set give me control over each single mirror?
Answer: Yes it does. The array is organized in lines and each single line and each pixel within that line can be randomly addressed.
6. May I control the mirror tilt angle continuously?
Answer: The DMD is a bi-stable device with two mechanically well defined mirror positions; any intermediate mirror positions are transient and cannot be controlled.
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7. Is it possible to use the DLP® Discovery™ 4100 chip sets with ultraviolet light?
Answer: Yes, there are UV enhanced DMD chip sets available for selected types of DMD. Please see our window transmission data or contact one of our VARs to learn about the current UV DMD options.
8. Do the DLP® Discovery™ 4100 chip sets work with infrared light?
Answer: Yes, there are NIR DMD chip sets available for selected types of DMD. They are optimized for approximately 1150-1850 nm. Please see our window transmission data.
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9. Is it possible to keep the mirrors at rest for a given time?
Answer: Yes, the DLP Discovery™ 4100 chip set supports still DMD array states without any mirror motion for seconds. A watchdog timer may initiate a forced reset operation after about 5 seconds. Such reset causes only very short and minor motion of the mirrors if the SRAM data are kept the same.
10. Does the mirror tilt angle change over time?
Answer: The two mirror positions are mechanically controlled by landing tips and therefore the repositioning long-term precision is guaranteed; tilt angle variation is possible from chip to chip, selected DMD chips are available
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11. How does the bi-stable mirror array generate grey level patterns?
Answer: The mirrors are either ON or OFF. Gray value patterns are generated by digital control of the ON time fraction during a given period in time. The observation of grey value patterns by a detector requires corresponding synchronization between exposure and DMD display.
12. May I increase the switching rate by partial DMD array updates?
Answer: Yes, the minimum of a partial update is data transfer for one DMD line and the rest of one block of mirrors. The maximum switching rate for such a partial update is in the range of 50 kHz ??
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13. How is the mirror array updated?
Answer: The DMD is updated in two independent steps:
i)New data is written into the SRAM cells under each DMD mirror.
ii)The mirror states (off/on == +12/-12) are then updated according to the new data in the SRAM cells; this mirror reset operation is applied to a horizontal array mirrors in a block (phased reset) or to the whole array simultaneously (global reset).
14. Why do I need the DAD and DDC?
Answer: The DDC controls the image data being sent it to the DMD and sends reset requests to the DAD. The DAD generates the reset waveform that flip the mirrors that have changed state.
15. What does DMD stand for?
Answer: DMD stands for Digital Micormirror Device.
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