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Mini-Rigid Borescopes

Mini-Rigid Borescopes

Mini Rigid borescopes, by GE, are uniquely constructed to better tolerate accidental bending than conventional small-diameter borescopes—without compromising image quality. A patented, short rod-lens optical system provides outstanding brightness and depth-of-field from 1mm to infinity, as well as exceptional bending tolerance. Mini Rigid borescopes are available in 1.7, 1.9 and 2.7mm diameters and lengths from 6cm to 26cm.

 

 

 

 

 

 

 

Features

Precision Optics

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GE Rigid Borescopes feature precision lenses, prisms and cover-glasses that deliver bright, clear images. The use of a special penta-prism at the tip ensures correct image orientation without the need for a compensating doveprism.

Special attention to maximizing light transmission in the optical path results in increased image brightness, and the on-axis resolution at the image center is held as high as possible towards the edge of the field of view. This uniform, flat field makes the smallest defects visible, and greatly reduces user eyestrain.

Superior Illumination Performance

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By bringing the illumination fibers close to the viewing window at the distal tip, in a “wrap-around” arrangement, the parallax between illumination and optical fields is virtually eliminated, considerably reducing the closest illuminated viewing distance.

All GE Rigid Borescopes are designed to correctly illuminate the entire field-of-view, right down to their minimum focusing distance.

Diameter and Length Options

Standard range Rigid Borescopes are available in diameters 4.0 mm (0.15 in.), 6.0 mm (0.24 in.), 8.0 mm (0.31 in.) and 10.0 mm (0.39 in.).

The standard range is available in working lengths from 100.0 mm (3.94 in.) to 905.0 mm (35.63 in.).

There are five choices of direction-of-view (DOV) and, on some diameters, three different fields-of view (FOV) can be specified.

Short Rod-lens System

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Unique tip design with shortest tip length and wrap around fibers

Key Features & Benefits

  • Outer tube, body and light-guide connection made of stainless steel.
  • Light condenser funnel of clad-glass provides 30-percent more light output at the tip.
  • Light-guide post is convertible to ACMI male or female, Wolf or Storz by means of screw-on adapters.
  • Eyepiece is the DIN standard 32 mm (1.26 in.) diameter pattern and made from a high-temperature resistant durable plastic.
  • Triple-tube construction on the 1.9 mm (0.75 in.) and 2.7 mm (0.11 in.) mini-rigids protects the Rigid Borescope’s lens and optics, while keeping them accessible for easy service and repair.
  • Patented short rod-lens optical system provides outstanding image brightness and depth-of-field from 1.0 mm (0.04 in.) to infinity.
  • Wide-angle field-of-view is ideal for inspecting large surface environments.
  • Resistant to fuels, oils, all common industrial solvents and water.

Rugged Construction

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GE Rigid Borescopes are specifically designed to meet the demands of harsh industrial environments, with all-metal construction, triple-tube shafts and durable hard-anodized aluminum bodies.

Triple-Tube Insertion Shaft

The insertion tube assembly consists of a double-walled stainless steel tube surrounding illumination fibers and the optical cover-glass. Fuel, oil and watertight, this sealed outer-tube assembly is pressure tested during the manufacturing process to protect the prism and lens system, which is assembled separately and fitted inside. In addition to protecting the precision optical components, this design also permits easy disassembly for service and repair.

All-Metal Body

An anodized aluminum body provides a secure and rugged location for the rotatable insertion tube and the ocular eyepiece.

360° Rotary Scan

The insertion tube of the Rigid Borescope can be rotated, allowing the viewing field to be scanned 360˚ (with overlap from field-of-view) without moving the body of the borescope. A positive stop is built into the body to prevent overrotation of the lighting fibers.

Viewing Direction Indicator

When inspecting inside a closed cavity or inspection area, the tip of the Rigid Borescope might not be visible to the operator and it can be difficult to determine which direction is being viewed. On all Rigid Borescopes with oblique, lateral or retro directions-of-view, a raised indicator mark in the rotary scanning control allows viewing direction to be monitored by feel alone, without taking one’s eye from the eyepiece.

Fiber and Bearing Life-Tested and Proven

During development testing, Rigid Borescopes were subjected to 20,000operating cycles, stop to stop. Bearing surfaces between the insertion tube assembly and the bore of the body showed no measurable wear, and there was no loss of lighting performance due to fiber breakage.

Adaptable Light Guide Fitting

All Rigid Borescopes have detachable click-on/click-off pistol grips that make them easy to handle, and protects the light-guide. The ACMI male light guide post can be converted to ACMI female / "O", Wolf, Storz andother pattern fittings.

Zoom Eyepiece Option

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All Rigid Borescopes can be specified with a variable magnification zoom eyepiece, which gives a stepless adjustable magnification range of an additional 2:1.

When used on an instrument with a narrow field-ofview of 35º, the zoom gives similar magnification, at all viewing distances, to Rigid Borescopes with a very narrow field-of-view, but without the decreased depth-of-focus associated with such instruments. This capability is particularly valuable when the image plane is neither flat nor perpendicular to the axis of the instrument.

The super-large exit lens of the zoom ocular delivers images that are big, bright and very easy to view.

Applications

Casting, Bolt hole, Gear Box, Lock Cylinder, Manufacturing Assembly

Air-brake Compressor

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Valve

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Impeller

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Oil-way Clear and Free of Debris and Burrs

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Specifications

Operating Temperature -40° to 121° C (-40° to 249° F)
Pressure Resistance >3 Bar (44 psi.)
Fluid Resistance Insertion Tube will withstandimmersion in aviation fuel, kerosene, gasoline, diesel fuel, mineral and synthetic lubrication oils and hydraulic fluids, most industrial solvents and water
Body Length R: 95 mm (3.75 in.)
RZ: 160 mm (6.4 in.)
PR: 140 mm (5.5 in.)
RZ: 200 mm (7.8 in.)
RM: 50 mm (2.0 in.)

 

Part NumberDiameterWorking LengthDirection-of-ViewField-of-View
RM17-10-30-65 1.7 mm (0.067 in.) 10.0 cm (3.94 in.) 30° 65°
RM19-10-0-65 1.9 mm (0.075 in.) 10.0 cm (3.94 in.) 65°
RM19-10-30-65 1.9 mm (0.075 in.) 10.0 cm (3.94 in.) 30° 65°
RM27-14-0-80 2.7 mm (0.106 in.) 14.0 cm (5.51 in.) 80°
RM27-14-70-80 2.7 mm (0.106 in.) 14.0 cm (5.51 in.) 70° 80°

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