Difference between revisions of "Equations"
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**a ≈ 2b  **a ≈ 2b  
**T = λ/(n1) ± 10%  **T = λ/(n1) ± 10%  
−  **Surface shadows reduce D.E. by <math>\lambda^2  +  **Surface shadows reduce D.E. by <math>\textstyle \frac{\lambda^2}{n d^2}</math> 
−  **Wavelength changes reduce D.E. by <math>(\pi\Delta\lambda  +  **Wavelength changes reduce D.E. by <math>\textstyle \left(\frac{\pi\Delta\lambda}{b\lambda}\right)^2</math> 
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*Φ = wedge angle of glass  *Φ = wedge angle of glass  
*Special case of linear scan and near wobble invariance a ~ b ~ 45° max straight scan angle ~ 36°  *Special case of linear scan and near wobble invariance a ~ b ~ 45° max straight scan angle ~ 36°  
−  *Dynamic wobble <math>\simeq \Delta\Omega/128</math>  +  *Dynamic wobble <math>\scriptstyle \simeq \Delta\Omega/128</math> 
*Wedge wobble = (n1)Φ  *Wedge wobble = (n1)Φ  
*Scan angle multiplier = 1.4 @ 90° cross scan angle  *Scan angle multiplier = 1.4 @ 90° cross scan angle 
Latest revision as of 15:05, 12 May 2013
Contents
Common DOE surfaces
Sinusoidal, triangle

Square, rectangle

Blazed, sawtooth

Holographic Deflectors (hologons)

Last modified on 9/29/97