An optimization method for fly’s eye integrator

Jia, Wenwu; Feng, Huang; Wang, Yuefeng; Lei, Ming; Hou, Junyan

doi:10.1016/j.optlastec.2010.04.007

Cited by 3 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A collimated beam hits the first microlens array MLA1; then focused spots or point sources will be generated. A uniform "flat-top" will be formed by the superposition of these point sources at the focal plane of the condenser lens 10 . In our system, a symmetric double-sided microlens array is utilized to facilitate the optical alignment, which is not a good solution for a high-power laser 6 .…”

Section: Design Methodology 21 Design Considerations For Köhler Homog...mentioning

confidence: 99%

An imaging homogenizer for DLP-based 3D printer

Magdy,

Fathy,

Kotb

et al. 2024

MOEMS and Miniaturized Systems XXIII

View full text Add to dashboard Cite

A compact imaging Köhler homogenizer with adjustable flattop size was implemented for a DLP engine. It is composed of pulsed UV LED, collimator aspheric lens, double-sided micro-lens array (MLA) with 34×15 micro-lenses and 0.8mmx1.76mm pitch size, and condenser lens. The homogenizer is dedicated for DMD chip of size 1920×1080 pixels (4K resolution) for 3D printer application. The produced flattop at the DMD has 98% measured uniformity and 85% optical efficiency. The calculated Fresnel number was greater than 60, indicating that our MLA has low diffraction effects. A lowcost RTIR prism was proposed using a wedge and a right-angle prism. Compared to conventional RTIR, the structure characterized by low cost and simplicity in assembly.

show abstract

Section: Design Methodology 21 Design Considerations For Köhler Homog...mentioning

confidence: 99%

An imaging homogenizer for DLP-based 3D printer

Magdy,

Fathy,

Kotb

et al. 2024

MOEMS and Miniaturized Systems XXIII

View full text Add to dashboard Cite

show abstract

Used For Space Irradiation Environment Simulation Equipment Property Analysis of Metal Mirror

Wang

Jiang

Peng-song

et al. 2021

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

With the development of space science and technology, the requirements of spacecraft environment simulation tests are gradually increasing, and radiation environment simulation has also attracted much attention. Based on space radiation environment simulation equipment of vertical metal reflector material in the solar simulator performance analysis, the systematic analysis of the influence factors of metal reflector, aimed at straight metal mirror blank material performance analysis, including the mechanics analysis and optical analysis, the performance to the blank material for testing. The test results show that the aluminum alloy 6061T6 billet used in the metal mirror can meet the requirements of high irradiation vertical solar simulator, and lay a solid foundation for the subsequent solar irradiation simulation, space illumination simulation and spacecraft thermal environment simulation.

show abstract

Irradiance-tailoring integral-illumination polarization homogenizer based on anamorphic aspheric microlens arrays

Liu,

Zhu,

Chen

et al. 2024

Opt. Express

View full text Add to dashboard Cite

In the realm of active polarization detection systems, the imperative for polarization illumination systems with high-uniformity and predefined-shape irradiance distribution is evident. This paper introduces a novel anamorphic aspheric (AAS) microlens array (MLA) integral polarization homogenizer, incorporating projection MLA (PMLA), condenser MLA (CMLA), polarization film (PF), and a sub-image array (SIA) mask based on Kohler illumination principles. Firstly, the optimal design of an AAS-based projection sub-lens is proposed to facilitate the creation of a short-working-distance, predefined-geometric and sharp polarization irradiance tailoring. The SIA mask is constituted by plenty of predistortion SIs, which are generated through a combination of chief ray tracing and the radial basis function (RBF) image warping method. In addition, accompanied with tolerance sensitivity analysis, detailed analysis of stray light generation factors and proposed elimination or suppression methods further ensure the engineering reliability and stability of the proposed system. A compact integral-illumination polarization homogenizer design example is realized with an overall irradiance uniformity exceeding 90% and a volume of 25 mm × 25 mm × 18.25 mm. Different predefined-geometrical-profile and high-uniformity polarization irradiance distribution can be achieved by substituting different SIA masks and PFs, without replacing MLA optical elements, which greatly saves cost. Substantial simulations and experiments corroborate the efficacy of our polarization homogenizer.

show abstract

An optimization method for fly’s eye integrator

Cited by 3 publications

References 5 publications

An imaging homogenizer for DLP-based 3D printer

An imaging homogenizer for DLP-based 3D printer

Used For Space Irradiation Environment Simulation Equipment Property Analysis of Metal Mirror

Irradiance-tailoring integral-illumination polarization homogenizer based on anamorphic aspheric microlens arrays

Contact Info

Product

Resources

About