DLPU140A May   2024  – September 2025 DLP160AP , DLP160CP , DLP2000 , DLP2010 , DLP2010LC , DLP2010NIR , DLP2021-Q1 , DLP230GP , DLP230KP , DLP230NP , DLP300S , DLP3010 , DLP3010LC , DLP301S , DLP3020-Q1 , DLP3021-Q1 , DLP3030-Q1 , DLP3034-Q1 , DLP3310 , DLP4500 , DLP4500NIR , DLP4620S-Q1 , DLP4621-Q1 , DLP470NE , DLP470TE , DLP4710 , DLP4710LC , DLP471NE , DLP471TE , DLP471TP , DLP480RE , DLP500YX , DLP5500 , DLP550HE , DLP550JE , DLP5530-Q1 , DLP5530S-Q1 , DLP5531-Q1 , DLP5531A-Q1 , DLP5532-Q1 , DLP5533A-Q1 , DLP5534-Q1 , DLP6500FLQ , DLP6500FYE , DLP650LE , DLP650LNIR , DLP650NE , DLP650TE , DLP651LE , DLP651NE , DLP660TE , DLP670RE , DLP670S , DLP7000 , DLP7000UV , DLP780NE , DLP780TE , DLP781NE , DLP781TE , DLP800RE , DLP801RE , DLP801XE , DLP9000 , DLP9000X , DLP9000XUV , DLP9500 , DLP9500UV

 

  1.   1
  2.   Abstract
  3. 1DMD Diffraction Efficiency Calculator Functionality
  4. 2Installation and setup
  5. 3Input Parameters
    1. 3.1  Pixel Models (DMD Micromirror)
    2. 3.2  Parameter Sweeps
    3. 3.3  Wavelength
    4. 3.4  Illumination Angle of Incidence
    5. 3.5  Tilt Angle
    6. 3.6  ƒ/Number (Illumination and Projection)
    7. 3.7  Enhance Slider
    8. 3.8  Diffraction Energy Plot
    9. 3.9  Array Size
    10. 3.10 Output File Name
    11. 3.11 Average Diffraction Efficiency and Photopic Diffraction Efficiency
    12. 3.12 Apodization
    13. 3.13 Run Simulation
  6. 4Coordinate System
  7. 5Examples
    1. 5.1 High F/Number Illumination
    2. 5.2 Mismatched Illumination and Projection F/Number
    3. 5.3 Cantilever Versus Torsional With Same Pixel Pitch
    4. 5.4 Side Diamond Diffraction Pattern
    5. 5.5 Apodization
  8.   Trademarks
  9. 6References
  10. 7Revision History

3.12 Apodization

Upon opening the application, the Pupil drop down menu is set to Uniform. This indicates that the rays in the pupil are going to have uniform weights. This can be adjusted by changing the Pupil drop down menu to Gaussian. This initializes a weighted gaussian pupil distribution across the ray profile. The Gaussian Value can be adjusted according to a given system apodization. The Apodization Profile plot indicates the chosen profile used in every simulation. The plot shows a ray uniformity Pupil Cross Section for the given profile chosen in the simulation. The black lines on either side of the profile indicates the pupil or ƒ/# boundaries chosen. The apodization functionality is determined by the following equation:

Equation 3. Apodization=exp⁡(-gaussianvalradiusconeangle2)

where gaussianval is the value inserted by the user. This value dictates the steepness of the gaussian profile. Higher values are going to result in steeper gaussian profiles. Radius is ƒ/# radius being applied. The coneangle is ƒ/# cone angle in direction cosine space. Please see Example 5.5 below for more details on how to use Apodization in the GUI.