CONOSCOPE LENS INTRODUCTION · Radiant Vision Systems | A Konica Minolta Company Fast, Accurate...
Transcript of CONOSCOPE LENS INTRODUCTION · Radiant Vision Systems | A Konica Minolta Company Fast, Accurate...
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Radiant Vision Systems | A Konica Minolta Company
Fast, Accurate View Angle Measurement from Lab to LineCONOSCOPE LENS INTRODUCTION
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2Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TODAY’S TOPICS
• Measuring View Angle Performance of Displays• Radiant Conoscope Lens
• Accuracy and Repeatability• Instant Measurements• Minimal Equipment• From R&D to Production
• Competitive Comparison• Application Examples• Summary
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3Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
MEASURING VIEW ANGLE PERFORMANCE OF DISPLAYS
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4Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
WHY MEASURE VIEW ANGLE?
• View angle:Angle at which a display can be viewed with acceptable performance
• Displays appear in more commonly-used devices
• Displays increasingly integral to device function
• Quality of display impacts perceived quality of device
• Relative position of device to user is increasingly variable
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5Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
COMMON APPLICATIONS
Televisions Phones, Tablets, PCs Smart Devices
Automotive Aerospace Virtual Reality
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6Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
KEY FACTORS IN VIEW ANGLE PERFORMANCE
Luminance
• Brightness of a display should appear uniform to the human eye regardless of viewing position.
Chromaticity
• Colors of a display should appear the same regardless of viewing position.
Contrast
• Angular contrast (including brightness and color) of the display should be sufficient to ensure legibility of symbols and text against a background regardless of viewing position.
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7Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
THE SOLUTION: CONOSCOPE LENSFast, Accurate View Angle Performance Measurement
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8Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
CONOSCOPE LENS
Fast, Accurate, Low-cost View Angle Performance Measurement Solution for Displays
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9Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
WHAT IS A CONOSCOPE?
• Transforms a directional distribution of light rays emanating from a single point (creating a cone) to a lateral distribution (all light rays parallel)
• Able to capture the entire visible “cone” of angular light rays on a single focal plane (image sensor in a camera)
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10Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
WHAT IS A CONOSCOPE?
• Utilizes Fourier optics that map a light-emitting spot to a sensor so each pixel corresponds to a different emission angle
Imaging System
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11Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TOP VIEW ANGLE CONCERNS
1. Correlation of view angle data relative to human perception
2. Repeatability of measurement accuracy
3. Speed of measurement process
4. Cost & complexity of measurement equipment
5. Applying benchmark data from R&D to assess quality of displays in production
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12Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TOP VIEW ANGLE CONCERNS ADDRESSED BY CONOSCOPE LENS
1. Correlation of view angle data relative to human perception
2. Repeatability of measurement accuracy
3. Speed of measurement process
4. Cost & complexity of measurement equipment
5. Applying benchmark data from R&D to assess quality of displays in production
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14Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
SIMULATE HUMAN PERCEPTION
• Colorimeter simulates human perception of light and color
• Tristimulus filter system to CIE standard for absolute color values
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15Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
SIMULATE HUMAN PERCEPTION
• Colorimeter simulates human perception of light and color
• Tristimulus filter system to CIE standard for absolute color values
Imaging Lens
Color Filters
ND Filters
Sensor
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16Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TOP VIEW ANGLE CONCERNS ADDRESSED BY CONOSCOPE LENS
1. Correlation of view angle data relative to human perception
2. Repeatability of measurement accuracy
3. Speed of measurement process
4. Cost & complexity of measurement equipment
5. Applying benchmark data from R&D to assess quality of displays in production
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17Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
MEASUREMENT REPEATABILITY
• Evaluate with the same precision from display to display
• No movement of detector relative to display, preventing imaging inconsistency
• High performance imaging system• Luminance repeatability 0.02%
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18Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TOP VIEW ANGLE CONCERNS ADDRESSED BY CONOSCOPE LENS
1. Correlation of view angle data relative to human perception
2. Repeatability of measurement accuracy
3. Speed of measurement process
4. Cost & complexity of measurement equipment
5. Applying benchmark data from R&D to assess quality of displays in production
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19Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
INSTANT MEASUREMENTS
• Conoscope lens solutions capture data for range of view angles in a single measurement
• No need to rotate detector or display, or take measurements from multiple angles
• Easy-to-use add-on to existing Radiant cameras
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20Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TOP VIEW ANGLE CONCERNS ADDRESSED BY CONOSCOPE LENS
1. Correlation of view angle data relative to human perception
2. Repeatability of measurement accuracy
3. Speed of measurement process
4. Cost & complexity of measurement equipment
5. Applying benchmark data from R&D to assess quality of displays in production
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21Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
MINIMAL EQUIPMENT
• Conoscope is a single camera/lens solution
• Compact & turnkey form factor
• Easily integrated into labs and production lines with minimal setup and configuration
• Portable from lab to line
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22Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
TOP VIEW ANGLE CONCERNS ADDRESSED BY CONOSCOPE LENS
1. Correlation of view angle data relative to human perception
2. Repeatability of measurement accuracy
3. Speed of measurement process
4. Cost & complexity of measurement equipment
5. Applying benchmark data from R&D to assess quality of displays in production
![Page 22: CONOSCOPE LENS INTRODUCTION · Radiant Vision Systems | A Konica Minolta Company Fast, Accurate View Angle Measurement from Lab to Line CONOSCOPE LENS INTRODUCTION](https://reader034.fdocuments.us/reader034/viewer/2022052015/602dcf186711cd1a586fb2bd/html5/thumbnails/22.jpg)
23Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
FROM R&D TO PRODUCTION
• Use the same conoscope lens system in the lab and on the line to capture and compare identical measurement data
• Characterize displays in the lab for engineering and development
• Use R&D data as benchmark during production for quality control
• Easily transition data files saved through common software environment
• Swap conoscope lens for other lenses to utilize photometer or colorimeter for other light & color measurements
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24Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
CONOSCOPE SOLUTION FROM RADIANT VISION SYSTEMS
• Ensure display performance for all angles
• Mount to ProMetric Imaging Colorimeters & Photometers
• Simultaneously measure all angles to ±70°
• Angular resolution to ~0.05° per sensor pixel
• Working Distance = 3mm
• Fast, no need to rotate detector or device to capture spectrum of angular light
Colorimeter
Conoscope
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25Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
COMPETITIVE COMPARISON
Compact camera/lens
Captures all angles in 1 measurement
No rotation of camera or display
Low-cost add-on to existing camera
Versatile: can be used with standard lenses for other display testing
Conoscope Lens
Multiple components
Measures 1 angle at each display rotation
Display must be rotated to each angle
Large and expensive
Single use
Goniometer
Multiple components
Measures 1 angle at each camera position
Robot must position camera at each angle
Large and expensive
Single use
Robot
Compact camera/lens
Captures all angles in 1 measurement
No rotation of camera or display
Low-cost add-on to existing camera
Large sampling area (undesirable)
Fisheye Lens
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26Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
THE RADIANT ADVANTAGE
• Conoscope Lens + Camera Solution:
1. Perform view angle measurements:
• Conoscope lens mounted to photometer or colorimeter
2. Perform other 2D measurements:
• Remove conoscope lens and utilize full selection of standard Radiant lenses
3. Same ProMetric® Software tools for recording millions of data points
Colorimeter with conoscope lens
Colorimeter without conoscope lens
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27Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
APPLICATION EXAMPLESConoscope Lens Images and Analysis
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28Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
LCD DISPLAYS
angleangle
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29Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
CONOSCOPE ON LCD TABLET
Chromaticity:
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30Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
OLED DISPLAYS
• Δu’v’ varies from device to device, same manufacturer
Δu’v’, horizontal cross-section Δu’v’, vertical cross-section
NOTE: These images were taken with a Lens model that had +/- 58° field of view. Our current FPD Conoscope Lens extends to +/- 70°
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32Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
EMBEDDED DISPLAYSView Angle Measurement: Display Contrast
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33Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
Contrast of text at at view angle
Contrast of text at view angle
EMBEDDED DISPLAYSView Angle Measurement: Display Contrast
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34Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
CONOSCOPE ON MONITORViewing cone light distribution results.
Monitor
Monitor with privacy screen
Red Green Blue
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35Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
CONOSCOPE ON LCD TABLETEquivalent measurement data as compared with goniometer.
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36Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
SUMMARY
The ability to clearly view displays from multiple angles is critical to operating devices with increasingly variable position to user
New display technologies and integrations demand greater control over view angle performance
A conoscope lens instantly captures light and color from all view angles of a display in a single measurement without moving the camera or device
Radiant’s conoscope lens offers the advantage of speed, size, and software well-suited for production lines
Paired with an imaging photometer or colorimeter, the conoscope lens is a fast, accurate, and cost-effective view angle measurement solution
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37Radiant Vision Systems | A Konica Minolta Company
© Radiant Vision Systems, LLC
Working closely with world class brands and manufacturers to deliver creative visual inspection solutions that improve
quality, reduce costs, and increase customer satisfaction.
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Radiant Vision Systems | A Konica Minolta CompanyRadiant Vision Systems | A Konica Minolta CompanyQuestions? Contact [email protected]
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