Medical lighting

Innovative lighting solutions for medical applications. Advanced lighting technologies tailored to the needs of medical applications in illumination, treatments and therapies.

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Illumination

Typical sub-applications in that area are lighting solutions for surgery / emergency rooms, dermatologists, dentists, veterinary or even right fit room lighting in hospitals and at doctors. Critical application requirements which must be fulfilled for e.g. surgical or dermatologist’s lights, because of lighting standards, are 

  • high central illuminance for each zone and high uniformity 
  • color rendering index CRI (average) Ra > 85 (appropriate for tissue differentiation); or surgical lighting, R9 index (color of blood) and R13 (color of muscle) must be high. 
  • color temperature (CCT): 3000K to 6700K. 


Often these requirements are extended by individual end-user preferences such as  

  • pure white light at highest correlated color temperature (CCT) values with Ra / R9 > 90 K.
  • Red balance control, which allows surgeons to ‘tune’ the red content to match their own vision and to prevent symptoms of fatigue 
  • Minimal heat development at high intensity as those lights are typical close to patients and medical staff 
  • Highest spectral stability and reliability with lifetime > 50,000 hours 


Latest innovations for lighting solutions in surgery rooms or at dentists often see integrated functional extension by advanced sensing capabilities for proximity and auto-focus control, shading detection or avoidance or even integrated image sensing for documentation purposes or on-screen diagnostic support. 

But even for standard room lighting in hospitals it is desired to have matching spectrum with color rendering index (CRI) above 90: right fit spectrum helps medical staff to detect e.g. Cyanosis - an effect of skin turning blue-ish due to lack of oxygen - and react the minutes earlier before it becomes a life-threatening issue. 

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Light based therapies or treatments

Light therapies, also known as phototherapy or bright light therapy, utilizesutilize controlled wavelengths of direct sunlight or artificial light to treat various medical conditions. These include therapies for neonatal jaundice where light in the range of 400nm to 520nm - with an absorption peak at 458nm -  is able to break down bilirubin by making it water soluble. Others focus on seasonal affective disorders (SAD), sleep-wake rhythm disorders, skin conditions, and even cancer. For skin conditions such as eczema, psoriasis, acne vulgaris, and neurodermatitis, treatment with ultraviolet light is referred to as ultraviolet light therapy. Light therapy can also address vitamin D deficiency and promote wound healing. The technical realization is based on spectrally stable LEDs, nowadays often combined with spectral sensors to enable fine-tuned spectral dose control instead of time-based exposure measurements.  
 
Finally medical light enables treatments for material hardening with UV-A LED light as known from dentist, efficient disinfection using UV-C LED light or even automatic shape / object scanning for orthopedic or tooth repair solutions, where Lidar-like scans are being performed with single mode green or blue laser light. 

We offer a market leading one-stop-shop portfolio of LEDs with high CRI value, including Ra, R9, R13 (up to 97), high CCT value (up to 4500) and high lumen output, robustness, reliability, spectral stability, lifetime and low thermal resistance. Our laser portfolio, especially for our edge-emitting lasers (EEL) supports a broad range of selected peak wavelength. Our differentiation is a proven track record in batch-to-batch volume production where we achieve highest wafer homogeneity and tightest wavelength tolerance of only ±1-2nm. The light emitting products are being complemented by the matching photodetectors and integrated sensors covering a spectral range from ~260 to 1100nm, available as broadband or tailored bandpass devices. 

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Featured Products

OSRAM OSLON™ Black, SFH 4713B

OSLON Black Series (850 nm) - 80°
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OSRAM OSLON™ P1616, SFH 4180BS

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OSRAM OSLON™ Pure 1414, GW VJLPL1.CM

The OSLON Pure™ 1414, one of the best lumen density, excellent efficiency and color homogeneity. The OSLON Pure™ 1414 come with full color spectrum and color temperature of 1800K to 6500K that enable customer to perform color tuning and tight clustering. It can be use stand alone as well as in cluster together to achieve the spectrum that you need.
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OSRAM OSLON™ Square, GW CSSRM1.BM

Higher performance. Lower thermal resistance. Extended range of driving conditions. This is the second generation OSLON Square.
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OSRAM OSRAM OSTAR™ Stage, LE RTDCY S2WN

Compact lightsource in SMT technology, glass window on top, RoHS compliant
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ams TMF8821 configurable 4x4 multi-zone Time-of-Flight Sensor

The TMF8821 is a direct time-of-flight (dToF) sensor in a single modular package with associated VCSEL. The dToF device is based on SPAD, TDC and histogram technology and achieves 5000 mm detection range. Due to its lens on the SPAD, it supports 3x3, 4x4 and 3x6 multizone output data and a wide, dynamically adjustable, field of view. A multi-lens-array (MLA) inside the package above the VCSEL widens up the FoI (field of illumination). All processing of the raw data is performed on-chip and the TMF8821 provides distance information together with confidence values on its I2C interface.
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ams AS7343 Spectral Sensor

The AS7343 is a 14-channel highly versatile, multi-purpose spectral sensor enabling new consumer, commercial, industrial and laboratory applications. It is optimized for reflective, transmissive and emissive measurements including color matching, fluid or reagent analysis or general spectral reconstruction.The spectral response is defined by individual channels covering approximately 380 nm to 1000 nm with 12+2 channels: 12 in the visible spectrum (VIS) to near-infrared (NIR) range, a clear channel and flicker channel. Applications can be assisted by full spectral reconstruction of light and an integrated flicker detection channel that can automatically flag ambient light flicker at 50/60 Hz as well as buffer data for externally calculating other flicker frequencies. AS7343 integrates high-precision optical filters onto standard CMOS silicon via deposited interference filter technology. A built-in aperture controls the light entering the sensor array to increase accuracy. A programmable digital GPIO and LED driver enable light source and trigger/sync control. Device control and spectral data access is implemented through a serial I²C interface. The device is available in an ultra-low profile package with dimensions of 3.1 mm x 2 mm x 1 mm.
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ams Mira220

2.2 MP NIR enhanced global shutter image sensor designed for 2D and 3D consumer and industrial machine vision applications. Due to its small size, configurability and high sensitivity both in visual as well as NIR, the Mira220 is well suited for 2D and 3D applications, which include Active Stereo Vision, Structured Light Vision for Robotics and AR/VR.
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