(1) Measured relative to the plane formed by the overall micromirror array.

(2) Parking the micromirror array returns all of the micromirrors to an essentially flat (0˚) state (as measured relative to the plane formed by the overall micromirror array).

(3) Additional variation exists between the micromirror array and the package datums- see the机械、封装和可订购信息

(4) When the micromirror array is landed, the tilt angle of each individual micromirror is dictated by the binary contents of the CMOS memory cell associated with each individual micromirror. A binary value of 1 results in a micromirror landing in an nominal angular position of +12°. A binary value of 0 results in a micromirror landing in an nominal angular position of –12°.

(5) Represents the landed tilt angle variation relative to the nominal landed tilt angle.

(6) Represents the variation that can occur between any two individual micromirrors, located on the same device or located on different devices.

(7) For some applications, it is critical to account for the micromirror tilt angle variation in the overall system optical design. With some system optical designs, the micromirror tilt angle variation within a device may result in perceivable non-uniformities in the light field reflected from the micromirror array. With some system optical designs, the micromirror tilt angle variation between devices may result in colorimetry variations and/or system contrast variation.

(8) Micromirror crossover time is the transition time from landed to landed during a crossover transition and primarily a function of the natural response time of the micromirrors.

(9) Micromirror switching time is the time after a micromirror clocking pulse until the micromirrors can be addressed again. It includes the micromirror settling time.

(10) Array switching is controlled and coordinated by the DLPC410 (DLPS024) and DLPA200 (DLPS015). Nominal switching time depends on the system implementation and represents the time for the entire micromirror array to be refreshed (array loaded plus reset and mirror settling time).

(11) Non-operating micromirror is defined as a micromirror that is unable to transition nominally from the –12° position to +12° or vice versa.

(12) Measured relative to the package datums 'B' and 'C', shown in the 机械、封装和可订购信息.

(13) The minimum or maximum DMD optical efficiency observed in a specific application depends on numerous application-specific design variables, such as:

• Illumination wavelength, bandwidth/line-width, degree of coherence
• Illumination angle, plus angle tolerance
• Illumination and projection aperture size, and location in the system optical path
• Illumination overfill of the DMD micromirror array
• Aberrations present in the illumination source and/or path
• Aberrations present in the projection path

The specified nominal DMD optical efficiency is based on the following use conditions:

• NIR illumination (1064nm selected as reference example)
• Input illumination optical axis oriented at 24° relative to the window normal
• Projection optical axis oriented at 0° relative to the window normal
• ƒ / 3 illumination aperture
• ƒ / 2.4 projection aperture

Based on these use conditions, the nominal DMD optical efficiency at 1064 nm results from the following four components:

• Micromirror array fill factor: nominally 94%
• Micromirror array diffraction efficiency: nominally 88%
• Micromirror surface reflectivity: nominally 94%
• Window transmission: nominally 98% (single pass, through two surface transitions)

(14) Does not account for the effect of micromirror switching duty cycle, which is application dependent. Micromirror switching duty cycle represents the percentage of time that the micromirror is actually reflecting light from the optical illumination path to the optical projection path. This duty cycle depends on the illumination aperture size, the projection aperture size, and the micromirror array update rate.