System concept and optical design of miniaturized projection and imaging systems with OLED microdisplays

Riehemann, S.; Palme, Martin; Lippmann, Uwe; Wolf, Nancy; Notni, Gunther

doi:10.1117/12.624570

Cited by 6 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…16 The patterns/fringes are generated by a digital projection unit based on LCD, LCOS, DMD, or OLED microdisplay technology or analog projection via a slide projector. 1,4,17,18 The image acquisition sensor can consist of a conventional CCD and an imaging lens. The fringes appear deformed when detected under from a different angle (triangulation angle, α T ).…”

Section: -D Metrology Systemmentioning

confidence: 99%

“…multimedia, medical and metrology applications). [1][2][3][4][5][6] Such devices comprise light source and light modulator in one element, minimizing the number of components in a system. In contrast to conventional projection systems OLED microdisplays allow a simple and small system integration.…”

Section: Introductionmentioning

confidence: 99%

“…Such system are used in different fields of application like metrology, multimedia, and automotive. [1][2][3][4][5][6] Typically active optical system like a camera including a projection unit (e.g. Nikon Coolpix S1000pj) are based on two different electro-optical devices, an image generating element and a detector device.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical system designs based on bi-directional sensor devices

et al. 2012

Self Cite

View full text Add to dashboard Cite

Small and compact optical system designs are needed in nearly all application scenarios of optical projection and imaging systems, e.g. automotive, metrology, medical or multimedia. Most active optical systems are based on separated imaging (e.g. camera unit) and image generating units (e.g. projection unit). This fact limits the geometrical miniaturization of the system. We present compact optical system designs using the new technology of bi-directional sensor devices. These devices combine light emitting and light detecting elements on one single chip. The application of such innovative opto-electronic devices -so-called bi-directional OLED microdisplays (BiMiDs) -offer a huge potential for miniaturization with a simultaneous increase of performance due to a new integration step. For these new bi-directional sensor devices new optical design concepts for simultaneous and sequential emission and detection are necessary. Because the simultaneous emission and detection can disturb the functionality of the optical system. New concepts has to be applied. A first concept is an exemplary 3-D metrology system applying fringe projection. A second concept is a pico-projection system with an integrated camera function. For both concepts the system configurations and the optical design are discussed. Due to the application of the bi-directional sensor device ultra-compact systems are presented.

show abstract

Section: -D Metrology Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optical system designs based on bi-directional sensor devices

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…multimedia, medical and metrology applications). [2][3][4][5][6][7] Such devices comprise light source and light modulator in one element, minimizing the number of components in a system. In contrast to conventional projection systems OLED microdisplays allow a simple and small system integration.…”

Section: Introductionmentioning

confidence: 99%

3D metrology system based on a bi-directional OLED microdisplay

et al. 2012

Self Cite

View full text Add to dashboard Cite

Expanding demands on manufacturing technology increase the requirements on necessary non-contact metrology. Several optical metrology systems are based on separated imaging (e.g. camera unit) and image generating units (e.g. projection unit). This fact limits the geometrical miniaturization of the system. We present a compact, highly integrated 3-D metrology system based on the fringe projection principle using a bi-directional OLED microdisplay. The microdisplay combines light emitting pixels based on OLED technology (projection unit) and light detecting pixels based on photo diode technology (camera unit) on one single device, realized by the OLED-on-CMOS-technology. This technology provides the opportunity for a further miniaturization of optical metrology systems. The 3-D metrology system is based on fringe projection onto the surface of the measurement object. The fringes will appear deformed when observed from a dierent angle (triangulation angle). From the deformation of the fringes the 3-D coordinates of all visible points can be calculated and thus the object shape can be determined. For the application of an 3-D Sensor and due an internal display eect, separate lenses for projection and imaging are necessary. The system principle and several optical system congurations are discussed. Due to the application of the bi-directional OLED microdisplay the fringe generating elements and the detectors will be combined into one single device. Based on this integrated device an ultra-compact and solid system concept for 3-D surface metrology is practicable

show abstract

“…One of the few disadvantages of actual OLED micro displays is the low luminance [3,4]. Nowadays high brightness OLED micro displays with very low energy consumption are developed.…”

mentioning

confidence: 99%

Ultra Small OLEd Pico Projector

et al. 2009

Self Cite

View full text Add to dashboard Cite

Ground-breaking, active illumination-free concept enables new projection applicationsAn ultra compact projection system based on a high brightness OLED micro display is developed. System design and realization of a prototype are presented. This OLED pico projector with a volume of about 10 cm³ can be integrated into portable systems like mobile phones or PDAs. The Fraunhofer IPMS developed the high brightness monochrome OLED micro display. The Fraunhofer IOF designed the specific projection lens [1] and integrated the OLED and the projection optic to a full functional pico projection system. This article provides a closer look on the technology and its possibilities.

show abstract

System concept and optical design of miniaturized projection and imaging systems with OLED microdisplays

Cited by 6 publications

References 0 publications

Optical system designs based on bi-directional sensor devices

Optical system designs based on bi-directional sensor devices

3D metrology system based on a bi-directional OLED microdisplay

Ultra Small OLEd Pico Projector

Contact Info

Product

Resources

About