Additive manufacturing of optical components

Lachmayer, Roland; Wolf, Alexander; Kloppenburg, Gerolf

doi:10.1117/2.1201511.006233

Cited by 9 publications

(5 citation statements)

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“…Lifetime at T c =45°C Figure 8 Simulation results for lifetime during R jc at 25°C, 35°C, and 45°C for a specific laser diode [13].…”

Section: Discussionmentioning

confidence: 99%

“…Thereby, the semiconductor lifetime strongly depends on the junction temperature. Owing to the high internal thermal resistances R jc of today's laser diodes, the environment temperature has to be low to keep the junction temperature below the desired value (typically ∼150°C [13]). Only some years ago, LED development had to face the same challenges, which have now been mostly solved.…”

Section: Lifetime Calculationmentioning

confidence: 99%

“…Owing to the lack of reliable values for laser diodes, the activation energy has been calculated using data sheets of LEDs to E a = 0.477 eV [13]. Thus, a lifetime estimation of the laser diode is possible.…”

Section: Lifetime Calculationmentioning

confidence: 99%

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System efficiency of laser-based white light

Lachmayer

Wolf

Kloppenburg

2014

Advanced Optical Technologies

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For many lighting applications, light-emitting diodes (LEDs) are replacing traditional light sources providing the possibility for smart and efficient systems as well as a reduction in the product weight. A next step in this development is the integration of laser-based light sources to increase luminance and to further scale down the optics possibly leading to a reduction of necessary resources. This article reviews the possibilities and challenges arising from the use of laser diodes especially compared to current high-power LED systems in terms of efficiency, color-rendering properties, and thermal management.

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“…Lifetime at T c =45°C Figure 8 Simulation results for lifetime during R jc at 25°C, 35°C, and 45°C for a specific laser diode [13].…”

Section: Discussionmentioning

confidence: 99%

Section: Lifetime Calculationmentioning

confidence: 99%

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System efficiency of laser-based white light

Lachmayer

Wolf

Kloppenburg

2014

Advanced Optical Technologies

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“…Figure 1 illustrates the SLM concept. Although a wide range of materials can be used to build a component using SLM, its application in the manufacturing of metallic reflective optical components, such as mirrors, is more common [28,29].…”

Section: Selective Laser Meltingmentioning

confidence: 99%

Additive manufacturing of precision optics at micro and nanoscale

Zolfaghari

Chen

2019

Int. J. Extrem. Manuf.

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This review focuses on recent developments in additive manufacturing (AM) of precision optical devices, particularly devices consisting of components with critical features at the micro-and nanoscale. These include, but are not limited to, microlenses, diffractive optical elements, and photonic devices. However, optical devices with large-size lenses and mirrors are not specifically included as this technology has not demonstrated feasibilities in that category. The review is roughly divided into two slightly separated topics, the first on meso-and microoptics and the second on optics with nanoscale features. Although AM of precision optics is still in its infancy with many unanswered questions, the references cited on this exciting topic demonstrate an enabling technology with almost unlimited possibilities. There are many high quality reviews of AM processes of non-optical components, hence they are not the focus of this review. The main purpose of this review is to start a conversion on optical fabrication based on information about 3D AM methods that has been made available to date, with an ultimate long-term goal of establishing new optical manufacturing methods that are low cost and highly precise with extreme flexibility.

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“…In the case of reflective optics, materials like aluminum are used. A quite common additive manufacturing method for this material is selective laser melting (SLM) [1,2]. The additive manufacturing of glass would have the advantage of a transparent material being used, but it may not allow sufficiently small structures [3].…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing of optical components

Heinrich¹,

Rank²,

Maillard³

et al. 2016

Advanced Optical Technologies

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aThe authors are all members of the optical metrology group at the Center for Optical Technologies at Aalen University. Since 2013, the focus of the group is on the additive manufacturing of optical components -transmissive optics, as well as reflective optics. The aim of the group is to find new solutions in the field of optical metrology and lighting through new design approaches, which are possible due to the additive manufacturing. Abstract:The development of additive manufacturing methods has enlarged rapidly in recent years. Thereby, the work mainly focuses on the realization of mechanical components, but the additive manufacturing technology offers a high potential in the field of optics as well. Owing to new design possibilities, completely new solutions are possible. This article briefly reviews and compares the most important additive manufacturing methods for polymer optics. Additionally, it points out the characteristics of additive manufactured polymer optics. Thereby, surface quality is of crucial importance. In order to improve it, appropriate post-processing steps are necessary (e.g. robot polishing or coating), which will be discussed. An essential part of this paper deals with various additive manufactured optical components and their use, especially in optical systems for shape metrology (e.g. borehole sensor, tilt sensor, freeform surface sensor, fisheye lens). The examples should demonstrate the potentials and limitations of optical components produced by additive manufacturing.

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Additive manufacturing of optical components

Cited by 9 publications

References 0 publications

System efficiency of laser-based white light

System efficiency of laser-based white light

Additive manufacturing of precision optics at micro and nanoscale

Additive manufacturing of optical components

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