Comparative performance analysis of 100% fill-factor microlens arrays fabricated by various methods

Akatay, Ata; Waddie, Andrew J.; Suyal, H.; Taghizadeh, Mohammad R.; Ürey, Hakan

doi:10.1117/12.664051

Cited by 2 publications

(2 citation statements)

References 10 publications

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“…The second microlens array is located at the focal plane of the first microlens array, and the level of homogenization is inversely proportional to the pitch of the arrays. A configuration with two identical microlens arrays separated by a focal length can also be used for exitpupil expansion in display systems and fabrication technologies [118,119]. Alignment methods for those arrays are also given in the literature [120].…”

Section: B Laser Beam Shaping Of Multiemitter Lasersmentioning

confidence: 99%

Laser-based displays: a review

2010

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After the invention of lasers, in the past 50 years progress made in laser-based display technology has been very promising, with commercial products awaiting release to the mass market. Compact laser systems, such as edge-emitting diodes, vertical-cavity surface-emitting lasers, and optically pumped semiconductor lasers, are suitable candidates for laser-based displays. Laser speckle is an important concern, as it degrades image quality. Typically, one or multiple speckle reduction techniques are employed in laser displays to reduce speckle contrast. Likewise, laser safety issues need to be carefully evaluated in designing laser displays under different usage scenarios. Laser beam shaping using refractive and diffractive components is an integral part of laser displays, and the requirements depend on the source specifications, modulation technique, and the scanning method being employed in the display. A variety of laser-based displays have been reported, and many products such as pico projectors and laser televisions are commercially available already.

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Section: B Laser Beam Shaping Of Multiemitter Lasersmentioning

confidence: 99%

Laser-based displays: a review

2010

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“…Nearly 100% fill-factor microlens arrays can be batch fabricated using a number of replication techniques or by photoresist melting. Replication molds can be fabricated using isotropic etching techniques for spherical profile and laser writing or gray-scale lithography for aspherical profile [10,11]. If the actuator is to be retrofitted in a micromachined stage and fitted in a 5 mm tube, as illustrated in Fig.…”

Section: Simulation and Optimization Of The Systemmentioning

confidence: 99%

Design and optimization of microlens array based high resolution beam steering system

Akatay¹,

Ürey²

2007

Opt. Express

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High-resolution imaging and beam steering using 3 microlens arrays (MLA) is demonstrated. Small lateral displacement of one microlens array is sufficient for large angle beam steering. A prescan lens is added to the system to overcome the discrete addressing problem associated with microlens scanning systems. A hybrid method that uses both geometrical ray tracing optimization and physical optics simulation is introduced for the design and optimization of the MLA system. Feasibility of 1880 x 1880 resolution using f/2 aspherical MLAs and 752 x 752 resolution using f/5 spherical MLAs are demonstrated assuming 100 microm microlens pitch and 2mm clear aperture. The system is compact and suitable for endoscopic imaging and agile steering of large beams.

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Comparative performance analysis of 100% fill-factor microlens arrays fabricated by various methods

Cited by 2 publications

References 10 publications

Laser-based displays: a review

Laser-based displays: a review

Design and optimization of microlens array based high resolution beam steering system

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