The stripe shall be 1 inch (25 mm) wide minimum and contrast with the rest of the walking surface either light-on-dark or dark-on-light....
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T502.3.2 Thresholds
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705.1.3 Contrast
Detectable warning surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light. Figure 705.1 Size and Spacing of Truncated Domes...
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2.3 Infrared (IR) Systems
The frequency of infrared light falls somewhere between 700 nm and 1000+ nm; visible light waves fall between 400 and 700 nm....
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T702.8 Contrast
Characters shall contrast with their background with either light characters on a dark background or dark characters on a light background....
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§ 38.153(b)
(b) All step edges shall have a band of color(s) running the full width of the step which contrasts from the step tread and riser, either dark-on-light or light-on-dark....
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Operational Definitions
So if your vision is low, you have low vision acuity. So low vision is kind of a shorthand notation for low visual acuity....
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1.3 Previous Research
when it is safe to cross, maintaining a straight path while crossing, and completing their crossing before perpendicular traffic approaches. 15 For pedestrians who have some functional vision...
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Accessible Route Into and Through the Business
These create trip hazards for customers with low vision and snag under patrons' crutches, canes, and walkers and in their wheelchair wheels....
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Accessible Routes Throughout the Museum
Some people who are blind or have low vision use canes to detect barriers that jut into the path of travel, whether along the accessible route or any other circulation path....
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T402.10 Visual Contrast
The stripe shall be 1 inch (25 mm) wide minimum and shall contrast visually with the rest of the walking surface either light-on-dark or dark-on-light....
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4.30.5* Finish and Contrast
Characters and symbols shall contrast with their background --either light characters on a dark background or dark characters on a light background....
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2.3.3 Issues
To reduce the interference effect of ambient light, a manufacturer may increase the radiated IR light level and decrease the sensitivity of the IR receiver....
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13. For children who are already receiving special education and related services under the IDEA, do parents have to make specific requests for different or additional auxiliary aids and services to trigger the Title II obligations for effective communication? Also, once the decision is made to provide a particular auxiliary aid or service to a student with a hearing, vision, or speech disability, does the school district have any obligation under either Title II or the IDEA to revisit that decision? If so, when?
When the school district knows that a student needs assistance with communication because, for example, he or she has a hearing, vision, or speech disability, the school district also has...
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Are redundant controls for an element required to comply?
If redundant controls, other than light switches, serve a single element, one control in each space is not required to comply....
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§ 38.117(b)
(b) All step edges and thresholds shall have a band of color(s) running the full width of the step or threshold which contrasts from the step tread and riser or adjacent floor, either light-on-dark...
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§ 38.99(b)
(b) All thresholds and step edges shall have a band of color(s) running the full width of the step or threshold which contrasts from the step tread and riser or adjacent floor, either light-on-dark...
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Platform and Vehicle Floor Coordination: ADA Standard Section 810.5.3
Access Board’s Note to Reader: The Department of Transportation’s ADA standards note permitted alternatives where compliance is not operationally or structurally feasible in light rail...
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407.2 Contrast
Characters and symbols shall contrast visually from background surfaces with either light characters or symbols on a dark background or dark characters or symbols on a light background....
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T405.3 Visual Contrast
The stripe shall be 1 inch (25 mm) wide minimum and shall contrast visually with the rest of the step tread or circulation path surface either light-on-dark or dark-on-light....
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407.2 Contrast
Characters and symbols shall contrast visually from background surfaces with either light characters or symbols on a dark background or dark characters or symbols on a light background....
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PLATFORM
rings; theater-in-the-round stages; and similar purposes wherein, other than horizontal sliding curtains, there are no overhead hanging curtains, drops, scenery or stage effects other than lighting...
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Tips for Presenters
Use a light colored background with dark text. Use a plain background without any watermark, photo, or design behind the text....
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11B-705.1.1.3 Color and Contrast
Detectable warning surfaces shall contrast visually with adjacent walking surfaces either light-on-dark, or dark-on-light. ...
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Presentation Materials / Slides and Video
., Arial) Use a large font size -- at least 22 point Use a dark text font and a light-colored background Text on a slide should have nothing behind it (no watermarks...