2011
DOI: 10.1117/12.896790
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Surface metrology system based on bidirectional microdisplays

Abstract: Typical optical metrology systems for surface and shape characterization are based on a separated camera and projection unit, yielding to a limitation concerning the miniaturization of the sensor. We present a compact, highly integrated optical distance sensor applying the inverse confocal principle using a bidirectional OLED microdisplay (BiMiD). This microdisplay combines light emitting device (AM-OLED microdisplay) and photo sensitive detectors (photodiode matrix) on one single chip based on OLED-on-CMOS-te… Show more

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Cited by 4 publications
(5 citation statements)
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“…Further information can be found in. 9,11,18 projection lens Path Imaging path Measurement Imaging lens field Figure 3. Paraxial lens design of the system simulation of an 3-D sensor system.…”
Section: Bi-directional Oled Microdisplaymentioning
confidence: 99%
See 1 more Smart Citation
“…Further information can be found in. 9,11,18 projection lens Path Imaging path Measurement Imaging lens field Figure 3. Paraxial lens design of the system simulation of an 3-D sensor system.…”
Section: Bi-directional Oled Microdisplaymentioning
confidence: 99%
“…First applications which are based on a similar working BiMiD are a flow-, color-, and reflex sensor which are presented in Reckziegel et.al. 8 A further metrology application of a distance and inclination sensor is mentioned in Grossmann et al 11 Another application based on a BiMiD which works in different wavelength ranges for the OLED imaging and photo diode detection is a HMD which is mentioned in Richter et al 9 In this contribution we present a system simulation of a highly integrated compact surface metrology sensor based on bi-directional OLED microdisplay. The 3-D metrology system is based on fringe projection onto the surface of the measurement object.…”
Section: Introductionmentioning
confidence: 98%
“…Further information can be found in. 9,11,15 With this device, either simultaneous or sequential emission (OLED projection) and detection (photo diode) can be realized. 15 Futher, there are two different kind of BiMiDs.…”
Section: Bi-directional Oled Microdisplaymentioning
confidence: 99%
“…First applications which are based on a similar working bi-directional OLED sensor are a flow-, color-, and reflex sensor which presented in Reckziegel et.al. 8 A further metrology application of a distance and inclination sensor is mentioned in Grossmann et al 11 Another application based on a BiMiD which works in different wavelength ranges for the OLED imaging and photo diode detection is a HMD presented by in Richter et al 9 and Herold. 12 This system can be used in the automotive, engineering and multimedia sector.…”
Section: Introductionmentioning
confidence: 98%
“…OLED microdisplays are actually state of the art and are used in a wide range of applications, e.g. multimedia, medical and metrology applications [1- 3,7].…”
Section: Introductionmentioning
confidence: 99%