When we will have some doubts, we will ask for some identification.
Bank Account nr.:
43.40.58.076
SWIFT of BIC : ABNANL2A
IBAN Bank number : NL66ABNA0434058076
ABN-AMRO bank
Enschede
The Netherlands
Visit and demonstration from the nightvision equipment only after appointment in Enschede NL.
Gero Trading Office & Showroom
We are importing/wholesale for 5 nightvision producers worldwide, over 50 types divices are on stock.
Posibillity to mount the scopes on a rifle with Blaser, Eclan or Weaver can be done by our gunmaker.
Attention:
Night Vision Devices are subject to local control laws, which maybe require the written approval of the local government prior to use this devices.
We advise the user to ascertain the requirements of the local law about the Night Vision Devices.
Night vision devices using image intensifier
tube technology require some ambient light to operate. The level
of moonlight, starlight or other ambient light necessary is a
function of the technology employed. The night vision industry
has evolved through three stages, or "Generations," of
development.
Generation I technology is obsolete in the US market. We offer
products based on Generation II, II+, III, and III+. Each
generation offers more sensitivity and can operate effectively on
less light.
Operating
life expectancy of Generation I image intensifier tubes was about
2000 hours. Generation II tubes have a life expectancy from 2,500
hours to 4000 hours. Continuing improvements have increased the
operating life expectancy of Generation III tubes to10,000 hours.
This makes tube replenishment for the system virtually
unnecessary. This is an important consideration when the
intensifier tube normally represents 50% of the overall cost of
the night vision system.
The early
1960's was witness to the beginning of passive night vision.
Technological improvements included vacuum tight fused fiber
optics for good center resolution and improved gain, multi-alkali
photocathodes and fiber optic input & output windows. GEN I
devices lacked the sensitivity and light amplification necessary
to see below full moonlight, and were often staged or cascaded to
improve gain. As a result, GEN I systems were large and
cumbersome, less reliable, and relatively poor low light imagers.
They were also characterized by streaking and distortion.
The
development of the Microchannel Plate (MCP) led to the birth of
Generation II devices in the late 1960's and early 1970's. Higher
electron gains were now possible through smaller packaging, and
performance improvements made observation possible down to 1/4
moonlight. The first proximity focused microchannel plate (MCP)
image intensifier tube was an 18mm used in the original AN/PVS-5
NVG. Generation II+ provides improved performance over standard
Gen II by providing increased gain at high and low levels.
Generation II+ equipment will provide the best image under full
moonlight conditions and is recommended for urban environments.
The
current state-of-the-art, the Generation III intensifier
multiplies the light gathering power of the eye or video receptor
up to 30,000 times. Requiring over 460 manufacturing steps, the
GEN III intensifier is typically characterized by a Gallium
Arsenide (GaAs) photocathode, which is grown using a metal
organic vapor-phase epitaxy (MOVPE) process. The photon
sensitivity of the GaAs phtocathode extends into the
near-infrared region, where night sky illuminance and contrast
ratios are highest. Sealed to an input window which minimizes
veiling glare, the photocathode generates an electron current
which is proximity focused onto a phosphor screen, where the
electron energy is converted into green light which can then be
relayed to the eye or sensor through an output window.