Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Double-wavelength light source unit and optical head device having four diffraction gratings

Double-wavelength light source unit and optical head device having four diffraction gratings

US Patent 7548359 · Granted Jun 16, 2009

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Diffractive optical element, projection device, and measurement device'2024
Diffractive optical element, projection device, and measuring device2024
Diffractive optical element and illumination optical system2024
Driving assist apparatus with autonomous braking control2023
Collision avoidance assistance apparatus2023
Diffractive optical element, projection device and measuring device2023
Diffractive optical element, projection device, and measurement device2022
Collision avoidance assist control apparatus2022
Homogenizer, illuminating optical system, and illuminator2022
Collision avoidance assistance apparatus2022
Vehicle moving control apparatus2022
Vehicle driving assist apparatus2022