CULE-20QS-XEG-Bioluminescent Engine

General Applications – XEG

• Non-Directional
• Directional
• Downlights
• Exterior Area
• Landscape
• Architectural
• Entertainment
• Horticulture
• Vehicle

Data Sheets

• XLamp Element G Feature Sheet
• XLamp Element G Data Sheet
• Optimising 4 Channel Led Design with XEG

Note  Cree LED maintains a tolerance of ±7% on flux and power measurements, ±0.005 on chromaticity (CCx, CCy) measurements and a tolerance of ±2 on CRI measurements. See the Measurements section (page 97).

• XLamp XE-G LED order codes specify only a minimum flux bin and not a maximum. Cree LED may ship reels in flux bins higher than the minimum specified by the order code without advance notice. Shipments will always adhere to the chromaticity or DWL bin restrictions specified by the order code.

Other XEG Related MCPCB Products

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MCPCB-XEG-Q20-CU

$4.61 EX GST

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MCPCB-XEG-L280-AL

$6.61 EX GST

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MCPCB-XEG-TRI20-CU. Copper Base MCPCB for XEG LED’s with High Thermal Conductivity

$2.61 EX GST

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MCPCB-XEG-20-CU

$2.61 EX GST

Applications

Bioluminescent organisms emit light in a variety of colors, but the most common color is blue-green due to the absorption and scattering properties of water. The blue-green light is most effectively transmitted through water, which is why many marine organisms that use bioluminescence emit light in this range. The wavelength for this blue-green light typically falls between 475nm (blue) and 510nm (green).

In creating LED lighting that mimics bioluminescence for use in aquariums, art installations, architectural designs, or other products, designers would likely use LEDs that can produce light in this blue-green range.

However, bioluminescence can occur in a range of colors, from blue to green to red, depending on the species of organism and the depth of water in which they live. Some terrestrial organisms, like fireflies, produce a yellow-green light, around 550-570nm. Therefore, the specific wavelengths used in a bioluminescent lighting design could vary based on the specific organisms or effects the designer is trying to mimic.

It’s also worth noting that the glow of bioluminescent organisms is often soft and diffused. LED lights used to mimic this effect may be dimmed or diffused in some way to replicate this characteristic.

Spectral Observations of PC Red, PC Cyan, Cyan, and Blue LED Colour Mix for Bioluminescence Applications

An LED light engine incorporating PC Red, Blue, PC Cyan, and Cyan LEDs can generate a diverse range of light, making it particularly suited for applications that aim to mimic the spectral characteristics of bioluminescent organisms. Here’s a detailed analysis of how these LEDs could interact in such a context:

PC Red LED: Emitting light in the red region of the spectrum, typically around 620-750 nm, the PC Red LED provides a strong presence in the red part of the spectrum. While red light is less common in marine bioluminescence due to its poor transmission in water, certain deep-sea organisms do exhibit red bioluminescence.

Blue LED: This LED produces light in the blue part of the spectrum, typically around 450-495 nm. Blue is the most common color of bioluminescence in marine environments due to its effective transmission in water. Therefore, the Blue LED plays a crucial role in accurately representing the spectral characteristics of many bioluminescent organisms.

PC Cyan LED: PC Cyan LEDs are known for their broad spectral output, which spans a range between green and blue in the spectrum, typically around 490-520 nm. This serves to bridge the spectral gap between the blue and green regions, providing a more balanced spectral output across this part of the spectrum. Some bioluminescent organisms emit light in this cyan range.

Cyan LED: Cyan LEDs emit light in the region between green and blue, typically around 490-520 nm. Similar to PC Cyan LEDs, Cyan LEDs can help represent the spectral characteristics of bioluminescent organisms that emit light in the cyan range.

When these LEDs are combined, they generate a broad spectral output that covers a significant portion of the visible spectrum, which can be beneficial in creating a realistic representation of the diverse range of colors found in bioluminescent organisms. The specific appearance of the light will depend on the relative intensities of each LED. By adjusting these intensities, it’s possible to mimic the light of different bioluminescent organisms.

The inclusion of both PC Cyan and Cyan LEDs can help to smooth the transition between the blue and green regions of the spectrum, potentially creating a visually pleasing light that closely mimics the soft, diffused glow of bioluminescent light.

However, keep in mind that the actual spectral output will also be influenced by other factors, like the drive current of each LED and any optical components used in the light engine. Also, the precise color appearance to the human eye will depend on the balance of intensities between these LEDs when powered.

Application Examples