Jörg Smolenski | Nanoscribe: How can 3D printing overcome the inherent limitations of traditional micro-optics manufacturing for display applications?
01:19 - 03:07
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Summary of the clip:
How can 3D printing overcome the inherent limitations of traditional micro-optics manufacturing for display applications?
The integration of micro-lenses and beam shaping optics onto LEDs is critical for managing Lambertian emission and achieving directive light output in modern displays. Traditional methods often face challenges in producing complex free-form geometries and ensuring optical surface quality, particularly when requiring transparent materials in the UV spectrum. The ability to print these structures directly onto substrates without active assembly has been a significant hurdle.
Our two-photon grayscale lithography technology addresses these challenges by enabling high-resolution 3D printing of optical components. Utilizing a femtosecond oscillator laser and galvan mirrors, we precisely cure a transparent resin. A key innovation is the ability to tune the voxel, allowing for the creation of optical surfaces with high quality in thick layers, significantly enhancing printing speed compared to classical slicing and hatching methods.
In this short video, you can learn:
* The role of micro-lenses and beam shaping optics in display light management.
* Challenges in manufacturing complex optical geometries for LEDs.
* Introduction to two-photon grayscale lithography for high-resolution 3D printing.
* How voxel tuning improves speed and optical surface quality.
#TwoPhotonGrayscaleLithography, #VoxelTuning, #MicroOptics3DPrinting, #FemtosecondLaser, #LEDDisplays, #LightManagement
This is a highlight of the presentation:
Additively manufactured 3D Micro-Optics and MLA for AR/VR applications with highly transparent resin in VIS and UV
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06:46 - 08:51
Is a single resin capable of delivering both high UV transparency and optical quality across diverse micro-optical scales?
Is a single resin capable of delivering both high UV transparency and optical quality across diverse micro-optical scales?
The introduction of our IPX Clear resin marks a significant advancement for optical 3D printing, particularly for applications requiring high transparency across the UV and visible spectra. This resin exhibits exceptional transmittance, exceeding 98% from 450 nm and 95% from 350 nm, which is crucial for maintaining optical efficiency in display and integrated photonics systems. Its refractive index of approximately 1.44 is carefully adapted to the numerical aperture of microscope objectives, ensuring optimal resolution during the printing process.
A key advantage of the IPX Clear resin is its versatility, allowing it to be used across multiple scales, from rough mechanical features to fine optical structures, within the same printing process. This flexibility streamlines prototyping and production workflows, eliminating the need for multiple material changes. Furthermore, the resin boasts an Abbe number of 42, with tunability options available for specific quantitative requirements, and comprehensive reliable P-data for integrated photonic applications.
In this short video, you can learn:
* High UV and visible light transmittance of IPX Clear resin.
* Refractive index adaptation for optimal printing resolution.
* Versatility of the resin across different feature scales.
* Key optical properties: Abbe number and available P-data.
#Optical3DPrinting, #UVTransparentResin, #MicroOpticsFabrication, #TunableOpticalProperties, #IntegratedPhotonics, #AdvancedDisplays
05:08 - 10:08
How can additive manufacturing unlock unprecedented design freedom for integrated display optics, from micro-lenses to complex free-form geometries?
How can additive manufacturing unlock unprecedented design freedom for integrated display optics, from micro-lenses to complex free-form geometries?
Our 3D printing technology offers unparalleled flexibility in designing and fabricating a wide array of optical components directly onto display substrates or LEDs. Examples include complex TIR lenses combined with classical central lenses, micro-lens arrays precisely positioned on quantum dots, and CPC lenses directly printed onto individual LEDs or LED arrays for enhanced light concentration. This capability extends to combining concave and convex surfaces within a single, integrated print, overcoming the limitations of traditional manufacturing processes.
The design workflow is streamlined, allowing for rapid iteration and optimization of optical designs. Our software facilitates the input of complex optical parameters, such as polymill factors, enabling easy arraying, cropping, and curvature adjustments. This significantly reduces setup time for intricate optical layouts, transforming what previously took days into mere hours. Such efficiency is critical for prototyping and developing custom optics that are otherwise impossible to manufacture, enabling rapid exploration of design variations for optimal display performance.
In this short video, you can learn:
* Examples of 3D printed optics: TIR lenses, micro-lens arrays on quantum dots, CPC lenses on LEDs.
* Ability to combine complex concave and convex geometries.
* Streamlined design software for rapid optical iteration.
* Efficiency gains in prototyping complex optical designs.
#AdditiveManufacturing, #IntegratedOptics, #FreeformOptics, #MicroLensArrays, #AdvancedDisplays, #OpticalEngineering