The SpectraScanner is the latest product from Oculus Photonics, released in July 2012. The SpectraScanner is a handheld imaging system that has all the functionality of the UVScanner, plus an additional near-infrared viewing capability. This dual-band imager uses two separate cameras, one tuned for longwave ultraviolet, the other for near-infrared. The operator toggles a selector switch on the top of the unit to change bands. As with the UVScanner, the SpectraScanner is not a recording device, but it does have an auxiliary SMA output that can be used to attach it to a recording device such as a DVR, or an external monitor.
The SpectraScanner is equipped with a 396nm longwave UV LED flashlight
and a 830nm near-IR flashlight for scene illumination in the two
wavebands. The useful range of the longwave-UV flashlight is approximately
10 feet for a typical scene with 40% longwave-UV reflectivity.
The near-IR flashlight can illuminate scenes up to about 50 foot
range, and the SpectraScanner can be used as a covert night vision
device in the near-IR mode. The eyecups on the back of the SpectraScanner
are designed to close off when the device is not pressed against
the face. This keeps dust off the display lenses and also prevents
light from the displays from illuminating the room when the SpectraScanner
is momentarily not in use but is still powered on.
Click on thumbnails for views of the SpectraScanner:
UVScanner is a handheld imaging system that is more rugged
and man-portable than the UVCorder and is designed for greater
ease of use if the goal is to scan a scene in the near-UV band.
The UVScanner is not a recording device, but it does have an auxiliary
SMA output that can be used to attach it to a recording device
such as a DVR, or an external monitor. The UVScanner is equipped
with two 396nm LED flashlights for scene illumination. The useful
range of the flashlights is approximately 10 feet for a typical
scene with 40% near-UV reflectivity. The eyecups on the back of
the UVScanner are designed to close off when the device is not
pressed against the face. This keeps dust off the display lenses
and also prevents light from the displays from illuminating the
room when the UVScanner is momentarily not in use but is still
Click on thumbnails for views of the UVScanner:
Click on thumbnail for larger view of UVCorder
The UVCorder™ consists of a Canon Vixia Camcorder equipped
with the Canon advanced accessory shoe, upon which is mounted a
special ultraviolet camera module, or UVM. The shoe provides
a mounting base for the UVM, which plugs into the shoe much like
an accessory light or flash unit. The UVM is powered
by its own lithium ion battery. The UVM contains a silicon CCD
camera with enhanced ultraviolet response in the 300-400nm range,
and a peak response at 370nm. A special filter rejects both
visible and infrared light from reaching the sensor. This
means that the UVCorder™ can be used in situations where
the ultraviolet illumination is lower than the visible or infrared
illumination. For example, on a clear, sunny day, the UV
images formed by the camera are 99% ultraviolet in their spectral
content. A standard black light can be used in indoor situations,
since by design most interior lighting emits little UV light.
Live images from the color video camera and the UVM are displayed
on a 2.7 ” LCD screen on the camcorder. UV video can
be recorded to a 60 minute mini-DV cassette tape.
The UVcorder™ will run for about 2 hours on the lithium
battery included with the system. Total system weight is
880 grams, or about two pounds, not including the rugged, watertight
carrying case that comes standard with the system.
The UVM accepts C-mount lenses that have UV transmission. The
UVCorder comes standard with a 16mm focal length uncoated glass
lens designed for machine vision camera applications that has good
UV transmission. The lens has an adjustable iris that ranges
from f/1.4 to f/16 and then to fully closed. Other focal
length lenses are available.