US 11,796,811 B2
Head-up display dynamic image stabilization
Saumil Satish Wagle, Mumbai (IN); Ethan Hoang To, Royal Oak, MI (US); Arul Krishna, West Bloomfield, MI (US); and Xiao Zheng, Shanghai (CN)
Assigned to N.S. INTERNATIONAL, LTD., Troy, MI (US)
Filed by N.S. International, Ltd., Troy, MI (US)
Filed on May 24, 2021, as Appl. No. 17/328,643.
Prior Publication US 2022/0373797 A1, Nov. 24, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 5/10 (2006.01); G02B 7/182 (2021.01); F16F 9/30 (2006.01)
CPC G02B 27/0149 (2013.01) [F16F 9/306 (2013.01); G02B 5/10 (2013.01); G02B 7/182 (2013.01); G02B 27/0179 (2013.01); B32B 2307/56 (2013.01); G02B 2027/0183 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A Head-Up Display apparatus comprising:
a display unit;
a curved mirror having a reflective side and a nonreflective side and positioned for the reflective side to reflect a visual signal transmitted by the display unit to a transparent surface; and
a damping tape disposed on and covering at least part of the nonreflective side, wherein the damping tape is configured to reduce vibration in the curved mirror and comprises:
a first layer comprising a viscoelastic material that absorbs vibrational energy; and
a second layer comprising a resilient material that constrains the first layer;
wherein the first layer is proximate to the nonreflective side and the second layer is distal to the nonreflective side.