Airy diskdiameter

Optically clear adhesives and other components that support display technologies are the most difficult raw materials to handle, fabricate and assemble due to high aesthetic demands and requirements.

You may find more details about the OpticStudio calculations and modelling options in these knowledgebase articles and forum threads:Modeling Laser Beam Propagation in OpticStudio – ZemaxSimulating lasers - webinar – Knowledgebase (zemax.com)How is M2 (M squared) calculated in Physical Optics Propagation (POPD)? | Zemax Community

Airy disk formulacalculator

Optically clear adhesives have superior optical and mechanical attachment qualities, high dimensional stability, low shrinkage, and whitening resistance to enable rugged, durable bonds in complex optically clear laminations.

Airy Disktelescope

Optically clear adhesives (OCAs) are highly transparent adhesives that bond visually clear components in optically clear laminations providing a strong, reliable, and long-lasting bond while maintaining visual clarity of the components.

I think the first formula you referred to should be applied on the beam waist radii and not on the full aperture diameters, please see this reference below:The beginner's guide on spot size of laser beam (gentec-eo.com)

Airy diskcalculator

I don’t know if this is the right place, but there are probably people here with a lot of experience that may answer this.

Airy disk formuladerivation

For this there is a standard, generally used formula: (M² * focal length * wavelength) / (pi * aperture). For parameters 980nm wavelength, 330mm focal length and aperture 20mm, this gives 20,6µm.

Thank you for your reply. I also was thinking that the first formula should be applied on the beam waist radius, but in a lot of sources (not from zemax but elsewhere) they are using it as diameter. So that’s why I was somewhat confused about it.

Optimize display power conversion with more efficient visual quality to enhance the user experience and reduce battery demand.

Display technologies that feature OCAs require a range of material functionalities and supporting components to enhance screen performance, reduce battery demands, and optimize the end consumer’s engagement with the electronic display device.

Radius ofAiry disk formula

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OCAs transmit as much light as possible through optimal refraction and improve the contrast ratio and optical clarity of LCD, LED, and OLED screens while reducing the amount of reflected light. This results in rich colors, sharp contrast, and vivid images.

For the Airy disk radius, the formula is (1.22 * wavelength * F/#). For the same parameters, this gives 19,73µm, which is also what I get from Zemax. This means the Airy diameter is 39,46µm, which is about twice the size of the focal spot size calculated with the generally used formula to calculate the focal spot size.