of its “snapshot” advantage – a simple optical system that allows
acquisition of all hyperspectral information in a single camera
frame. In this mode, all light emitted by the sample is collected
and registered at all times. The poor light efficiency of existing
products results in phototoxicity effects in cells, making them
unsuitable for observing real-time phenomena. By using image
mapping spectrometry technology developed at Rice University
in Houston, the Arrow has light sensitivity that is orders of magnitude higher than that of existing systems, allowing the observation of cell chemistry as it is happening.
Applications: fluorescence imaging, imaging spectroscopy
and computer-aided pathology, among others.
OTHER LIGHT SOURCES
Intematix
ChromaLit
In standard LED architecture, phosphor compounds are coated directly onto the chip, resulting in directional, bluish light with restricted end-use applications. With ChromaLit, Intematix removes
the compound from the chip, keeping the phosphor performance
stable over the lifetime of the LED, while maintaining color consistency and uniformity. ChromaLit deposits the phosphor onto a
substrate material that operates remotely from the blue chip. This
design shift eliminates the need for a diffuser (which accounts for
a 9 percent light loss in conventional LEDs) and achieves 30 percent efficacy gain over conventional white LEDs. It also reduces
glare, increases design freedom, and streamlines supply and production of luminaires to enable widespread adoption.
Applications: general and decorative lighting, and specialty
lighting applications such as signs and signals.
Philips Lumileds
LUXEON® A
LUXEON A delivers illumination-grade LED light sources by
incorporating thin-film flip-chip technology and unique Lumi-ramic phosphor technology to target white color point performance. With hot testing and color binning, every LUXEON A is
specified at real-world operating conditions (junction temperature
85 °C). This represents a change in behavior from the “
semiconductor” mentality to a “lighting” approach. Every LUXEON A
LED falls within a single three-step MacAdam ellipse centered
on the blackbody curve, eliminating the potential significant differences between color bins. Philips Lumileds is unique in offering a single white die emitter with a single bin selection. The entire production has the same color, so when a customer specifies
a CCT of 2700 K, that’s what he/she gets.
Applications: lighting for shop, outdoor, office, school
and home.
OEwaves
Ultranarrow Linewidth Laser
This ultranarrow linewidth source, based on a high-quality factor
(Q) Whispering Gallery Mode (WGM) microresonator, offers
superfine instantaneous and dynamic optical spectral linewidth of
less than 300 Hz and ultralow phase/frequency noise in a small
form factor. The laser is scalable to a variety of wavelengths in
the C- and L-bands. The design is based on the self-injection
locking of a suitable commercially available laser diode via a resonant optical feedback from the microresonator. Its monolithically integrated approach, and microscale mass and volume make
the laser virtually insensitive to environmental vibrations.
