Lenovo 62F0 Gebruikershandleiding - Pagina 27
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Adjustment and Using
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Comfort and accessibility
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1. Install the product at an appropriate height to allow you to work in comfort.
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2. Avoid glare or reflection from overhead or nearby windows.
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3. Use appropriate lighting according to your working type.
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4. Adjust the monitor's brightness, contrast and image to meet your visual preferences.
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5. Keep your screen clean so that you can focus on what is displayed on the screen.
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6. Any sustained and concentrated visual activity will let your eyes get tired. Be sure to take
your eyes off the monitor screen periodically and stare at distant objects, which will allow your eye
muscles to relax. If you have questions about eye fatigue or visual discomfort, consult a vision care
professional for advice.
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7. Prolonged exposure to computer screens may cause temporary visual fatigue. Work
environment, work habits and posture, screen flicker, blue light and other unfavorable factors may
cause this situation. To minimize visual fatigue, you can make some adjustments while working or
use a suitable computer screen to relieve eye fatigue.
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Work habits
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1. Visual fatigue is influenced by the work environment. Reducing glare and using proper
lighting are conducive to lowering the occurrence of such situation.
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a) Change the location of any light sources that cause the glare.
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b) Install appropriate diffusers or lamp shades for light sources.
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c) Use curtains or louvers on windows to reduce the glare from direct sunlight.
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d) Adjust the position of the monitor so that it is perpendicular to the light source or window.
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e) Use anti-glare screen- Lenovo smart LFD which has anti-glare finish to disperse light and
avoid reflection in use of your work.
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2. Lighting
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Adequate lighting is necessary to avoid glare and eye fatigue. However, in too much or
inadequate light, you will be hard to see what is displayed on the screen. The illumination level
shall be no more than 750 lux generally. Recommended lighting arrangements include placing the
product away from direct sunlight or using overhead lights with baffles or louvers to reduce glare.
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3. Prolonged exposure to the screen may lead to eye fatigue. Symptoms include headaches,
eyes burning, blurred vision and discomfort. To reduce eye fatigue, computer users can adjust their
work habits to allow their eyes to relax and recover.
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4. Break time
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Users should keep away from the screen for a while, especially after working for a long time.
In general, a break of 5-15min is recommended after 1-2 hours of continuous work. Short and
frequent breaks are preferable to long breaks.
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5. Look at distant objects
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The number of blinks will decrease whenever users are in front of the monitor screen. To
reduce eye fatigue and dryness, users should periodically rest their eyes and focus on distant
objects.
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6. Eye and neck exercises
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Certain exercises can reduce eye fatigue and prevent early onset of musculoskeletal
disorders. Repeating these exercises frequently is suggested. However, if symptoms persist, it is
recommended to consult a doctor.
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Eye exercises:
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a. Look up and down alternately while keeping your body and head upright.
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b. Slowly move your eyes to look left and right.
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c. Move your eyes to look at the object in the upper right corner, then the object in the lower
right corner. View the top-left and bottom-left objects in the upper left and lower left corners in the
same way.
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Neck exercises:
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a. Relax arms on one side. Tilt your head forward and stretch your neck slightly. Hold for 5s.
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b. Relax arms on one side. Turn right. Hold for 5s. Then turn left.
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c. Relax arms on one side. Swing your head to the left. Hold for 5s. Then swing your head to
the right.
Appendix B Usage Precautions B-3