As seen in XIMEA‘s 360° VR capture demo:
PCIe cameras for integrations
2 to 50 Mpix with high bandwidths
fat fex cables (data, power, GPIO)
Vision system to enable
NASA’s (Washington, D.C.; www.nasa.gov) Raven technology module
launched aboard the 10th SpaceX (Hawthorne, CA, USA; www.spacex.
com) commercial resupply mission on February 19. It features a vision
system comprised of visible, infrared, and lidar sensors that will be affixed outside the International Space Station (ISS) to test technologies
that will enable autonomous rendezvous.
Through Raven, NASA says it will be one step closer to having a rel-
ative navigation capability that it can take “off the shelf” and use with
minimum modifications for many missions, and for decades to come.
Raven’s technology demonstration objectives are three-fold:
• Provide an orbital testbed for satellite-servicing relative navigation
algorithms and software.
• Demonstrate multiple rendezvous paradigms can be accomplished
with a similar hardware suite.
• Demonstrate an independent visiting vehicle monitoring capability.
Raven’s visible camera, the VisCam, was originally manufactured for
the Hubble Space Telescope Servicing Mission 4 on STS-109. The 28
Volt camera features an IBIS5 1300 B CMOS image sensor from Cypress Semiconductor (San Jose, CA, USA; www.cypress.com), which is
a 1280 x 1024 focal plane array with a 6. 7 µm pixel size that outputs a
1000 x 1000-pixel monochrome image over a dual data-strobed Low
Voltage Differential Signaling (LVDS) physical interface.
The camera is paired with a commercially available, 7 radiation-tol-erant 8 – 24 mm zoom lens that has been ruggedized for spaceflight
by NASA’s Goddard Space Flight Center. The motorized zoom lens
provides zoom and focus capabilities via two, one-half inch stepper
motors. The adjustable iris on the commercial version of the lens has
been replaced with a fixed f/4.0 aperture. Additionally, the Viscam provides a 45° x 45° FOV when at the 8 mm lens setting and a 16° x 16°
FOV while at the 24 mm lens setting. The combination of the fixed
aperture and variable focal length and focus adjustments in the lens
yield a depth of field of approximately four inches from the lens out
to infinity, according to NASA. Furthermore, the VisCam assembly
includes a stray light baffle coated with N-Science’s ultra-black Deep
Space Black coating, which protects the VisCam from unwanted optical artifacts that arise from the dynamic lighting conditions in Low
Raven’s infrared camera, the IRCam, is a long wave infrared (LWIR)
camera that is sensitive in the 8 – 14 µm wavelength range. The
camera features a 640 x 480 pixel U6010 Vanadium Oxide microbolometer array from DRS Technologies (Arlington, VA, USA; www.drs.
com) and has an internal shutter for on-orbit camera calibration and
flat- field correction. Furthermore, the camera operates via USB 2.0
interface and includes an athermalized, 50 mm f/1.0 lens that yields
an 18° x 14° FOV.