Notes:
1. #58-839 includes an optional removable sleeve in the bore. This will
reduce the inner diameter from 66mm to 60mm.
2. Each Ring Guide includes 3 thumbscrews (120° apart) for mounting.
System Showing Ring
Light Guide Application
• Reduce Glare from Highly Reflective Surfaces
• Easy Adjustment for User Needs
• Analyzer Sits in Counterbore
• Extreme Low Profile Design Does Not Inhibit
Placement of Lens or Object Viewed
Fiber Optic Ring Light Guides
Æ
CAMERA
LENS
Analyzer
Ring Guide
Polarizer
Object
Analyzer
Direction of Axis
Polarizer
Direction of Axis
Direction of Axis
Only Changes On
Reflective Surface
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• 360° Shadow-Free, Cool, Uniform
Illumination
• 70% Typical Illuminator Coupling Efficiency
• Accepts Polarizer Accessories
• Steel Terminations
Polarizing the ring light guide output and the system lens
separately can reduce the effects of glare or reflection and
bring out surface details. Left picture is with polarizer
over ring light source and lens. Right picture utilizes only
direct ring light illumination without polarizers.
Spectral Response: 400 - 2000nm
Fiber Size: 0.002" (50μm) Dia.
Core Refractive Index (nd): 1.581
Clad Refractive Index (nd): 1.487
Numerical Aperture: 0.55
Acceptance Angle: 68°
Packing Fraction: 82% nominal
Transmission Losses: 6% per ft. at 600nm
(1/4" Dia. bundle)
Operating Temperature: -40°F to 225°F
(-40°C to 107°C)
Fiber Length Tolerance: ±0.5"
Inside Min. Bend Radius: 1.5"
Fiber Optic Ring Light Guides All dimensions in inches.
C’Bore Dia.
A
ID
B
C’Bore OD
C
Ring Depth
D
Bundle Height
E
Bundle Dia.
F
Ferrule Dia.
G
Beam
Angle
Working
Distance
(WD)
PVC
Sheathing
Ring Guides
Stock No. Price
2.600 2.370 3.480 0.800 1.000 0.365 0.562 20° 1.5-9.0 Metal Hose #58-839 £442.00
2.370 2.000 3.475 0.760 1.200 0.365 0.562 18° 1.5-9.0 Metal Hose #54-173 £442.00
1.550 1.550 2.562 N/A 1.150 0.333 0.562 5° 2.7-4.5 Metal Hose #54-174 £442.00
1.125 1.125 1.875 N/A 0.800 0.250 0.312 37° 0.38-1.2 Monocoil #54-175 £379.95
0.830 0.830 1.630 N/A 0.735 0.250 0.312 37° 0.25-1.0 Monocoil #54-176 £366.35
Polarizer/Analyzer Attachment
Polarizer/Analyzer Attachment
C’bore Dia.: Stock No. Price
2.600" (fits #58-839) #58-848 £312.80
2.370" (fits #54-173) #54-204 £433.50
1.550" (fits #54-174) #54-205 £254.15
1.125" (fits #54-175) #54-206 £237.15
0.830" (fits #54-176) #54-207 £227.80
Analyzer
Polarizer
Image of Circuit Board
With Polarizer
Scalpel at 1.5X
Without Polarizer
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