Visual Acuity But the whole point, as Bob mentioned, was: what is visual acuity? It’s really how big a letter you can see at what particular distance (slide 7)....
Search Results "Visual Indicator (Alarm)"
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  Dennis W. Siemsen, O.D., Low Vision Service, Department of Ophthalmology, Mayo Clinic
  
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  11B-216.2 Designations
  
People with visual impairments benefit from tactile signs containing raised characters and/or symbols and accompanying Braille....
 - Alertus System Overview: Text To Speech
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  Miscellaneous Elements
  
MISCELLANEOUS ELEMENTS Fire alarm systems: visible alarms 11B-215, 11B-702 Assistive Listening Systems...
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  Miscellaneous Elements
  
MISCELLANEOUS ELEMENTS Fire alarm systems: visible alarms 11B-215, 11B-702 Assistive Listening Systems...
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  Web Accessibility 101: Visual Focus Indication
  Requires the Registered User plan or above. Login!
 - The AWARE App from Sensible Innovations with Accessibility Voiceover
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  11B-707.7.2 Characters
  
Characters displayed on the screen shall be in a sans serif font. Characters shall be 3/16 inch (4.8 mm) high minimum based on the uppercase letter "I". Characters shall contrast...
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  11B-707.7.2 Characters
  
11B-707.7.2 Characters. Characters displayed on the screen shall be in a sans serif font. Characters shall be 3/16 inch (4.8 mm) high minimum based on the uppercase letter "I"....
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  11B-707.7.2 Characters
  
Characters displayed on the screen shall be in a sans serif font. Characters shall be 3/16 inch (4.8 mm) high minimum based on the uppercase letter "I". Characters shall contrast...
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  Trailhead Information Signs [F216.13 and 1017.10]
  
It is helpful to have a caution notice indicating that the posted information reflects the condition of the trail when it was constructed or assessed and on what date the information was...
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  Character Proportions: ADA Standard Section 703.5.4
  
Characters shall be selected from fonts where the width of the uppercase letter “O” is 55 percent minimum and 110 percent maximum of the height of the uppercase letter “I”.
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  Character Spacing: ADA Standard Section 703.5.8
  
Character spacing shall be measured between the two closest points of adjacent characters, excluding word spaces. Spacing between individual characters shall be 10 percent minimum...
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  11B-216.4.3 Directional signs
  
Signs required by Chapter 10, Section 1009.10 to provide directions to accessible means of egress shall comply with Section 11B-703.5.
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  11B-703.5.8 Character spacing
  
Character spacing shall be measured between the two closest points of adjacent characters, excluding word spaces. Spacing between individual characters shall be 10 percent minimum...
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  11B-703.5.4 Character proportions
  
Characters shall be selected from fonts where the width of the uppercase letter “O” is 60 percent minimum and 110 percent maximum of the height of the uppercase letter “I”. [2010...
 - Pager Receiver (BE1230)
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  Notification Devices
  
Guest rooms providing communication access are also subject to requirements for notification devices and telephones (806.3.2). Telephones must have volume control. Also, telephones...
 - Access Board: Signs
 - Figure 407.2.3.2 Car Designations on Jambs of Destination-Oriented Elevator Hoistway Entrances – Drawing from the U.S. Access Board
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  Route and Destination Signs
  
Requirements for route and destination signs are subject to specifications for visual signs in section 703, including character height (810.6.2)....
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  11B-216.12 Amusement rides
  
In addition, where accessible unload areas also serve as accessible load areas, signs indicating the location of the accessible load and unload areas shall be provided at entries to queues...
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  Symbols: ADA Standard Section 407.4.7.1.3
  
Section 407.4.7.1.3 covers the current ADA Standards for the designation and indicator symbols on elevator car control buttons.
 - Estimote Beacons and Stickers Wireless Sensors for Contextual Awareness
 
              