The bore camera dual scan micro cameras can be viewed in boreholes as small as one inch in diameter to very large boreholes, caves, crevices, pipes, tanks, and mines.
Dual-Scan micro is smallest diameter borehole camera available with two cameras for viewing both downward and to the side.
The 1 1/8 inch diameter size allows it to fit into small boreholes, past obstructions and pumps, and view places. Dual viewing allows you to change between down and side viewing with a switch on the control panel. Down viewing has a high, 550 line resolution camera in order to provide sharp, detailed videos.
The sapphire lens cover protects camera from breakage and scratching. The lens is 2.45 mm. Side viewing camera has a high, 550 line resolution camera in order to provide sharp, detailed videos. A mirror is recessed in the body of the camera above the down view camera housing. This allows the side viewing camera to be placed vertically in the housing.
This is the secret to achieving the small 1 1/8 inch diameter size. The lens is 2.9 mm. The bottom and side of the image view past the mirror and show the borehole walls ahead of the side view in the mirror as the camera is lowered.
While most of the side view camera image is a view 90 degrees to the side. The bottom and side image provide perspective and location of the side image.
Side scan the motorised housing allows a 400 degree pan left and right, more than a full circle. Close-up Side viewing has excellent focus as close as ½ inch from the camera and a usable focus of only ¼ inch. Since part of the focal length is taken by the distance between the lens and the mirror, incredibly close focus ability is achieved.
Lighting with 21 High-brightness LEDs the Dual-Scan micro camera has three sets of lights that can be turned on and off independently from switches on the control panel.The upper recessed ring light has nine brightness LEDs that provide light for the side viewing camera as well as indirect light for both cameras.The middle three LEDs provide direct light for the side viewing camera.The lower recessed ring light has nine brightness LEDs that provide light for the down viewing camera as well as indirect light for both cameras.
The combination of three switchable sets of lights provides the best overall lighting of any borehole camera. This lighting system is especially effective in producing high quality videos that show shadow and texture. This Dual-Scan micro lighting is better than other systems in poor quality water due to the use of LEDs that are placed a few inches away from the lens, providing indirect lighting and giving the user the flexibility to select different combinations of light sources. Depth Rating The Dual-Scan micro camera may be operated safely at underwater depths up to 2000 feet (600 meters).
YouTube Videos
https://alleghenyinstruments.com/video/
https://youtube.com/user/AlleghenyGeovision
DUAL SCAN (32 mm diameter camera) – Downview and Controllable Sideview
https://youtu.be/8SlboRY4J4U (Dual Scan in 100 mm diameter PVC well)
