Perret Opticians
 
We have been opticians for three generations in our family, and our activity is targeted on three areas, optometry, contact lenses and optical instruments.

 French


German


 

 

 

 

 

 

 


 



INSTRUMENTS

 

Night Vision Binoculars

 


HOW IT WORKS 
Available light is gathered by the front Objective Lens. Where it is transmitted through a set of optical lenses to the Electronic Intensifier Tube (EIT). High levels of energy, produced by the device's complex power supply, knock out electrons from the Photocathode Screen, located on the front of the Electronic Intensifier Tube.
This same energy creates a highly static field, pushing the electrons to the Phosphorescent Screen, a sensitive layer, located on the back of the EIT. These electrons strike the Phosphorescent Screen with great speed, causing the screen to illuminate.
This process produces an image, which is then magnified by the Ocular Lens located at the back of the device. By looking through the ocular lens you will see the image as if you just looked through a regular optical device, except the image will appear in a monochrome green colour.
Finally, the Ocular lens provides adjustment for your particular eyesight, while the Objective Lens lets you adjust the focusing distance to the object you are viewing.

 

Yukon Ranger Digital 5x42

The Ranger Pro 5x42 is a vivid example of successful application of digital technologies in observation optics. Currently this is the ultimate night vision digital device. The Ranger Pro features impressive 5-power magnification and large viewing range – up to 600 metres. This is due to a highly sensitive CCD array and new Sum Light tm software technology employed in the Ranger Pro device. The Ranger Pro 5x42 can surely compete with the Gen.2 in image sharpness and brightness. The image transmitted to the monochrome LCD display is crisp and sharp on the entire field of view. The device is able to capture effectively the light flux of a wide wave range in conditions of natural night illumination. To conduct observation on a cloudy moonless night, the adjustable IR illuminator can be used. The wave length amounts to 940nm (remote area of the IR range, invisible to the human eye) – the observer is “invisible” even if the unit is used in the active mode. The built-in video output allows transferring of the image to a monitor or a TV set which facilitates long-time stationary viewing, and video recording to external recording devices.

 

Bushnell Night Vision

Bushnell Night Vision 5x42 Stealth View Monocular 260542 presents the Night Vision Optics from Bushnell.
New
StealthView Digital Night Vision products use a powerful infrared spotlight to produce images with resolution rivaling that of Generation 2 and Generation 3 optics. The view is sharp from edge to edge, and they're effective in complete darkness and at long distances. As the name suggests, they're also invisible to game animals and observers.
No telling how you'll react when faced with lurks after dark, but with
Bushnell Night Vision, time will never again dictate your hours of operation. These optics turn night into day with built-in infrared illuminators and advanced light-gathering technology. The entire lineup of our digital night vision is perfect for camping, caving, wildlife observation, surveillance - any time or place you think you're ready.
Night Vision Uses:

  • Scouting game
  • Security and surveillance
  • Camping fun
  • Exploring caves
  • Nighttime navigation
  • Night fishing and boating
  • Wildlife observation
  • Search and rescue

Specifications of Bushnell Night Vision 5 x 42 Stealth View Monocular 260542:

Bushnell Night Vision 5 x 42mm Stealth View Monocular 26-0542

Power x Obj.

5x42

Viewing Range

1-600 / 0.3-549

FOV, ft.@1000yds. / m@1000m

30 / 10

Infrared Illuminator

Yes(Dual)

Battery Type

AA(6)

Size, in./mm

6.5x4x2.3 / 166x102x57

Weight, oz./g

20.2 / 573

Tripod Mount

Yes

 

Classical Image digital image

NIGHT OWL

 

 

   

The all-new Light™ is a quality night vision monocular with an optional infrared illuminator in a compact body design. The NOLT2 features an accentuated palm grip with ergonomically placed soft-touch operational buttons for easy one-hand operation. The new Light™ monocular is an ideal device for casual nocturnal viewing.

Easy one-hand operation with soft-touch buttons

Powerful integrated infrared illuminator

3.1x image magnification
 

 

NONH4U

 

 

 

 

The differents generations image

  • 1-Front lens

  • 2-Photocathode

  • 3-Microchannel plate

  • 4-High voltage power supply

  • 5-phosphorus screen

  • 6-Eyepiece

Green image  Gen. 1 Green image Gen. 2
Resolution 40-45 lp/mm
Green image Gen. 3
Resolution 64 lp/mm
Green image Gen.4
Resolution 64 - 72  lp/mm

 

Orders Through

 

Copyright © [2008 [Informoptic CH-1272 Genolier/VD Switzerland ]. All rights reserved