技术文章

2023
2023-09_microled-quality-check.jpg
2023/11/01

Quality Check for OLED and μ-LED Displays Amid the Race for Ever Higher Resolution

Article by Tobias Steinel and Martin Wolf

More pixels! This is a major trend in the display industry. The benefits of 8K or higher resolution TVs may be debatable. For eye catching applications such as AR/VR glasses, more and therefore smaller pixels are required for technical feasibility.

更多
2023-08_curved-displays.jpg
2023/08/30

Optical testing of curved displays

German article by Dr. Karin Duhnke

The new fully automated 7-axis DMS 904 goniometer is ideally suited to the optical characterization of large and curved displays.

更多
2023-06_eye-safety-2.jpg
2023/06/22

Eye safety assessment of VCSELs

Article by Dr. Günther Leschhorn

In this article, we present a step-by-step analysis of how to assess the laser safety of typical pulsed VCSELs and VCSEL arrays as often used in consumer electronics and automotive lidar applications. We offer two examples that represent typical challenges when dealing with VCSEL sources.

更多
2023-02_oled-check.jpg
2023/03/30

Quality check for OLED and μ-LED displays

German Article by Dr. Tobias Steinel and Dr. Martin Wolf

Technical innovations are driven by the call for ever higher display resolutions. In particular, μ-LEDs are regarded as the technology of the future. In quality control and the calibration of high-resolution OLED- or μ-LED displays in production lines, light measurement technology faces new challenges.

更多
2023-01_company-story.jpg
2023/01/30

Instrument Systems' evolution and adaptation in the lighting industry

Article by Prachi Patel

Founded in 1986 as a result of Richard Distl winning a German youth research competition, Instrument Systems is now a leading manufacturer of high-precision spectrometers, customized systems, and software solutions for spectral light measurement. Top display and LED manufacturers rely on the company’s innovative photometry systems, technical expertise, and market know-how to solve measurement challenges during R&D and production.

更多
2022
2022-10_ElektronikPraxis_web.jpg
2022/11/07

CIE 250:2022 – New guideline for spectroradiometry

German article by Dr. Tobias Schneider

With the publication of Technical Report CIE 250:2022 Spectroradiometric Measurements of Optical Radiation Sources, the CIE has issued a contemporary document on the fundamentals of spectroradiometry, thereby discharging its predecessor CIE 063:1984 into well-earned retirement after 38 years of effective service.

更多
2022-09_eye-safety-1_web.jpg
2022/09/15

How to Assess the Eye Safety of VCSELs – Introduction

Article by Dr. Günther Leschhorn, Tianyuan CAO, Dr. Karhik Iyer

In this paper we explain the differences of VCSELs as compared to “normal” collimated, Gaussian lasers, and outline the main steps necessary for VCSEL safety assessment.

更多
2022-08_us-standard_web.jpg
2022/08/24

Testing adaptive headlights in conformance with standards

Article by Dr. Karin Duhnke

Variable testing of the overall ADB lighting system with the highest precision in a standard-compliant, realistic situation in the field.

更多
2022-04_vcsel-characterization.jpg
2022/04/14

Polarization-controlled VCSEL characterization

Article by Frank Münchow and Karthik Iyer

Novel one-shot method enables the full performance efficiency of the VCSELs to be exploited while assuring safe operation.

更多
2021
2021-09_livelycolors_en.jpg
2021/09/23

Live Calibration Yields Lively Colors

Article by Tobias Steinel and Martin Wolf

Novel display technologies, such as near-eye and microLED displays, enable exciting new user experiences. However, they also impose big challenges for quality control, especially with substantial production tolerances and spectral variances of light sources.

更多
2021-09_uv-calibration_en.jpg
2021/09/23

Measurement Systems and Calibrations for UV Radiation

Article by Dr. Ðenan KONJHODŽIĆ

The promising germicidal effect of UV-C radiation, also on the coronavirus, raises the question of the reliable measurement of UV radiation. However, this complex task needs expertise and the appropriate equipment.

更多
2021-08_scheinwerfer.jpg
2021/08/27

Efficient testing of advanced headlamps

Article by Oliver Esterl

AMS screen imaging system allows ultra-fast determination of light distributions for HD / ADB / matrix / pixel vehicle headlamps.

更多
2021-06_angular-resolution.jpg
2021/06/22

Angular resolution in VCSEL radiant intensity distribution measurements

Article by Günther Leschhorn, Thomas Attenberger, and Tobias Schneider

Vertical cavity surface-emitting lasers (VCSEL) are getting more and more popular for 3D sensing and time-of-flight technology in consumer and automotive applications. VCSEL arrays with hundreds of single emitters are often used. Measurement of the radiant intensity distribution is the key to performing a proper eye safety assessment and designing suitable secondary optics for

these emitters.

more
2021-05_uv-kalibrierung.jpg
2021/05/30

Eine UV-Anwendung charakterisieren mit kalibrierten Messgeräten

German article by Dr. Ðenan KONJHODŽIĆ

Das UV-Spektrum ist während der Corona-Pandemie in den Fokus gerückt. Bisher existierte kein Referenzstandard für die Strahlungsleistung. Jetzt gibt es einen Kalibrierstandard für UV-LEDs.

more
2021-01_traceability_en.jpg
2021/03/02

Growth in OLED Lighting Demands New Metrological Traceability

Article by Dr. Tobias Schneider

The rapidly emerging dominance of OLED technology for illumination and display applications is driving demand for a metrology tailored to these light sources.

更多