Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2006-06-27
2006-06-27
Ben, Loha (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S290000, C359S295000, C359S298000
Reexamination Certificate
active
07068416
ABSTRACT:
A new three-dimensional imaging device has been needed to overcome the problems of the prior arts that the used variable focal length lenses that are still slow, have small focal length variation and low focusing efficiency, and requires a complex mechanism to control it. The invented three-dimensional imaging system uses the variable focal length micromirror array lens. Since the micromirror array lens has lots of advantages such as very fast response time, large focal length variation, high optical focusing efficiency, large size aperture, low cost, simple mechanism, and so on, the three-dimensional imaging device can get a real-time three-dimensional image with large depth range and high depth resolution.
REFERENCES:
patent: 2002376 (1935-05-01), Manfred
patent: 4834512 (1989-05-01), Austin
patent: 5986811 (1999-11-01), Wohlstadter
patent: 6111900 (2000-08-01), Suzudo
patent: 6658208 (2003-12-01), Watanabe et al.
patent: 6833938 (2004-12-01), Nishioka
patent: 2002/0102102 (2002-08-01), Watanabe et al.
patent: 2005/0057812 (2005-03-01), Raber
Kaneko et al., 2000, “Quick Response Dynamic Focusing Lens using Multi-Layered Piezoelectric Bimorph Actuator,” Proceeding of SPIE vol. 4075: 24-31.
Cho, 2003, “Fast-response Variable Focusing Micromirror Array Lens,” Proceeding of SPIE vol. 5055: 278-286.
Cho Gyoung Il
Gim Dong Woo
Kim Tae Hyeon
Seo Cheong Soo
Angstrom Inc.
Ben Loha
Dinh Jack
Park John K.
Park Law Firm
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