45°

On-State

Tilt Direction

Off-State

Tilt Direction

Pond Of Micromirrors (POM) omitted for clarity.

Not to scale.

Details omitted for clarity.

incident

illumination

DLP2000 DMD

M x N Micromirrors

N ± 1

0

1

2

3

N ± 4

N ± 2

N ± 3

15

DLP2000

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DLPS078 – JULY 2017

Product Folder Links: DLP2000

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Copyright © 2017, Texas Instruments Incorporated

(1)

Limits on variability of micromirror tilt half angle are critical in the design of the accompanying optical system. Variations in tilt angle

within a device may result in apparent non-uniformities, such as line pairing and image mottling, across the projected image. Variations

in the average tilt angle between devices may result in colorimetry and system contrast variations. The specified limits represent the

tolerances of the tilt angles within a device.

(2)

See Figure 9.

6.10 Micromirror Array Optical Characteristics

PARAMETER

MIN

NOM

MAX

UNIT

11

12

13

degree

44

45

46

degree

(1)

Single-pass through both surfaces and glass.

(2)

AOI – Angle Of Incidence is the angle between an incident ray and the normal of a reflecting or refracting surface.

Figure 9. Landed Pixel Orientation and Tilt

See Physical Characteristics of the Micromirror Array for M and N specifications.

6.11 Window Characteristics

Table 1. DMD Window Characteristics

PARAMETER

VALUE

UNIT

Window Material

Corning Eagle XG

Window Refractive Index at wavelength 546.1 nm

1.5119

Window Transmittance, minimum within the wavelength range 420–680 nm. Applies to all angles

97%

Window Transmittance, average over the wavelength range 420–680 nm. Applies to all angles

97%