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Posts Tagged ‘OSRAM’

App note: Ambient light sensor SFH5701

Sunday, December 9th, 2018

App note from OSRAM on their ALS device SFH5701, its operation and application method. Link here (PDF) The SFH5701 is a small, two-wire, linear output current ambient light sensor (ALS) with current amplifier and dark current compensation. The ALS is capable of resolving a wide range of ambient light levels...

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App note: Light guides

Sunday, September 30th, 2018

Light guide basics app note from OSRAM. Link here (PDF) Light Guides are used wherever the light of a light source should be distributed homogeneously over a particular area, when there is a spatial distance between light source and the area which is to be illuminated.

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App note: LED diagnosis in automotive applications

Sunday, September 30th, 2018

App note from OSRAM about different approaches on LED string diagnostic in automotive. Link here (PDF) One requirement especially in automotive applications is the diagnosis of failures in functions and systems. Therefore light functions realized with LEDs like break light, daytime running light, low and high beam may require a...

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App note: Preventing LED failures caused by corrosive material

Sunday, April 15th, 2018

Chemical compatibility of LEDs application note from OSRAM. Link here (PDF) The performance and stability of light emitting diodes (LEDs) may be influenced by various chemical incompatibilities arising from chemicals and materials used, amongst other things, in luminaire construction, or by gases in the proximate environment of LEDs during field...

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App note: LEDs for wearable applications

Sunday, April 15th, 2018

Brief app note from OSRAM, LEDs for heart rate monitoring through skin reflection of emitted light. Link here (PDF) This application note provides a short introduction into the general use of LEDs for wearable applications, with a focus on heart rate monitoring.

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App note: Advanced LED rework procedure for video wall and signage applications

Sunday, February 25th, 2018

App note from OSRAM about LED rework on signages and their demand for more sophosticated tools. Link here (PDF) SMT LEDs have became more and more popular in video wall and signage applications, replacing radial LEDs. This leads to more difficulties during the repair or replacement of failed LEDs on...

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App note: Infrared (IR) Spectroscopy with the SFH 473X – Background & technology

Sunday, July 9th, 2017

Infrared spectroscopy by OSRAM and their SFH 473X broadband light emitters. Link here (PDF) Imagine you can check if the mangos on the market are sweet - without even touching them… Imagine you can verify if your prescribed medical tablets contain the life-saving compound – or if they are counterfeits…...

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App note: Ambient light sensors – General application note

Sunday, July 9th, 2017

Different ambient sensors differs on their ability to sense specific wavelength and introduce different ambient levels compared to human eye, here's a general application note from OSRAM. Link here (PDF) This application note introduces discusses ambient light sensing. The different types of ambient light sensors are described and related to...

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App note: Driving of OLEDs

Sunday, April 16th, 2017

Application note from OSRAM on driving OLEDs with constant current for longer operation. Link here The operation of OLEDs with electronic drivers is similar to anorganic LEDs for the most part. In a majority of applications, standard LED drivers may be used also for OLEDs. Nevertheless, there are some important...

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App note: SOLERIQ® L38

Sunday, October 30th, 2016

OSRAM's filament looking LED application note. Link here (PDF) SOLERIQ® L38 (GW T3LxF1) is a filament LED with a beam angle of 360deg for indoor retrofit lighting applications. It combines the advantages of modern LED technology with the aesthetics of traditional light bulbs. The construction of the SOLERIQ® L38 consists...

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App note: Iris Recognition SFH 4780S

Sunday, March 20th, 2016

This application note from OSRAM describes the use of the SFH 4780S in iris recognition (iris scanning) as illumination module. Link here (PDF) Personal authentication is becoming a key requirement for various electronic devices. Besides of the pin number, today most systems are based on so called biometric “properties”. Biometrics...

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App note: Eye safety of IREDs used in lamp applications

Sunday, March 20th, 2016

This application note from OSRAM describes the possible hazards of infrared LEDs (IREDs) used for lamp applications with respect to the IEC-62471 standard and how to classify IREDs according to different risk groups. Link here (PDF) As the radiated optical power of light emitting diodes (LEDs) has increased in recent...

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App note: Projection with LED light sources

Sunday, January 24th, 2016

LEDs are now mostly used in light projection systems due to their low power requirements, long life and robustness. Here's an app note from OSRAM for proper integrations on these projection LEDs. Link here (PDF) This application note provides insights into the use of LED light sources for projection applications....

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App note: Potting protection for outdoor LED video walls and signs

Sunday, January 24th, 2016

LED signs and large LED video panels are always subjected to harsh environment resulting to corrosion to their pcb mountings, here's an app note from OSRAM about potting these LED panels for protection. Link here (PDF) This note provides basic information about the potting of flat SMT LEDs in video...

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App note: PointLED® – It’s nice to be different

Sunday, January 17th, 2016

New SMD LED design from OSRAM ideal for mounting on PCB holes for illumination. Link here (PDF) This application note provides insight into the universally deployable and flexibly mountable light source of the PointLED® product family. A fundamental overview of the LED construction as well as the optical and electrical...

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App note: Chemical compatibility of LEDs

Sunday, March 8th, 2015

An app note(PDF) from OSRAM on LED stresses due to chemical compatibilities on their applications. The performance and stability of light emitting diodes (LEDs) may be influenced by various chemical incompatibilities arising from chemicals and materials used, amongst other things, in luminaire construction, or by gases in the proximate environment...

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App note: Thermal consideration of flash LEDs

Sunday, February 1st, 2015

LEDs maximum performance are primary determined by its thermal property stresses, See OSRAM's app note(PDF). This application note focuses on how to develop an adequate thermal management for LEDs in camera flash applications.

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App note: Surface mount LEDs- applications

Sunday, August 31st, 2014

How to use SMD LEDs to replace through hole LEDs, this app note (PDF) from OSRAM discusses about light guides/pipes, backlighting and lenses to channel its display efficiently. The use of SMT-TOPLED varies greatly from the use of traditional through hole LEDs. Historically through hole LEDs have been incorporated directly...

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How LEDs are made

Wednesday, October 17th, 2012

[embed]http://www.youtube.com/watch?feature=player_embedded&v=6e8hBJ5-fdc[/embed] Ever wondered what goes into the process of making LED goodness? Here's a how-to video from OSRAM on the basics of LED manufacturing. Via Adafruit.

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