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Class Information
Number: 359/721
Name: Optical: systems and elements > Lens > Plural focal length
Description: Subject matter wherein the lens has a plurality of light transmitting zones or areas of different focal lengths.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7570399 |
Focal point shifter for scanning applications |
Aug. 4, 2009 |
| 7557852 |
Image-taking apparatus, magnification variation control method, and lens unit |
Jul. 7, 2009 |
| 7554750 |
Imaging using a multifocal aspheric lens to obtain extended depth of field |
Jun. 30, 2009 |
| 7493030 |
Adaptive optical plane formation with rolling shutter |
Feb. 17, 2009 |
| 7460306 |
Multi-directional optical element and an optical system utilizing the multi-directional optical element |
Dec. 2, 2008 |
| 7423801 |
Lens with SLM |
Sep. 9, 2008 |
| 7412158 |
Deeper depth of field for video |
Aug. 12, 2008 |
| 7408724 |
Optical systems including a chromatic diffractive optical element corrector and associated methods |
Aug. 5, 2008 |
| 7385173 |
Photosensitive array detector for spectrally split light |
Jun. 10, 2008 |
| 7357521 |
Chromatic dispersion compensation device and method |
Apr. 15, 2008 |
| 7317580 |
Zoom lens |
Jan. 8, 2008 |
| 7301686 |
Optically controlled optical-path-switching apparatus, and method of switching optical paths |
Nov. 27, 2007 |
| 7271963 |
Bi-curvature lens for light emitting diodes and photo detectors |
Sep. 18, 2007 |
| 7253948 |
Optical magnification device for distance variation |
Aug. 7, 2007 |
| 7220064 |
Coupling optical system for optical communications |
May. 22, 2007 |
| 7221399 |
Imaging apparatus with a multifocal lens formed of two pieces with different focal lengths |
May. 22, 2007 |
| 7215491 |
Optical path switching device and method |
May. 8, 2007 |
| 7159988 |
Projection optical unit and projection image display apparatus |
Jan. 9, 2007 |
| 7085063 |
Multi-directional optical element and an optical system utilizing the multi-directional optical element |
Aug. 1, 2006 |
| 7082000 |
Aspherical lens with grating |
Jul. 25, 2006 |
| 7068438 |
Grin-lens arrangement |
Jun. 27, 2006 |
| 7042649 |
Microfabricated rubber microscope using soft solid immersion lenses |
May. 9, 2006 |
| RE39025 |
Lens device including a light controlling mechanism and an optical pickup apparatus using a lens device |
Mar. 21, 2006 |
| RE38943 |
Compound objective lens for optical disks having different thicknesses |
Jan. 24, 2006 |
| 6990136 |
Laser beam transmission apparatus |
Jan. 24, 2006 |
| 6950384 |
Optical pickup appratus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method |
Sep. 27, 2005 |
| 6950245 |
Optical system, and optical apparatus |
Sep. 27, 2005 |
| 6947223 |
Multi-focal length miniature refractive element and method for making the same |
Sep. 20, 2005 |
| 6927922 |
Imaging using a multifocal aspheric lens to obtain extended depth of field |
Aug. 9, 2005 |
| 6876501 |
Objective lens, coupling lens, light converging optical system, and optical pick-up apparatus |
Apr. 5, 2005 |
| 6870690 |
Dual-band lens |
Mar. 22, 2005 |
| 6859333 |
Adaptive liquid crystal lenses |
Feb. 22, 2005 |
| 6842296 |
Optical lens and method of producing the same, method of producing optical lens array, focus error signal production method, and optical pickup apparatus |
Jan. 11, 2005 |
| 6813097 |
Lenses capable of post-fabrication modulus change |
Nov. 2, 2004 |
| 6788454 |
Viewing apparatus having a photographic function |
Sep. 7, 2004 |
| 6781764 |
Objective lens for optical pick-up |
Aug. 24, 2004 |
| 6646817 |
Objective lens for optical recording media and optical pickup apparatus using the same |
Nov. 11, 2003 |
| 6636365 |
Optical pickup apparatus and objective lens |
Oct. 21, 2003 |
| 6625103 |
Aspherical objective lens for reading information from optical disks of different thickness and manufacturing method therefor |
Sep. 23, 2003 |
| 6621644 |
Optical wavelength-demultiplexer with an improved optical lens |
Sep. 16, 2003 |
| 6552760 |
Luminaire with improved light utilization efficiency |
Apr. 22, 2003 |
| 6545821 |
Diffraction type lens and optical pickup apparatus using the same |
Apr. 8, 2003 |
| 6542314 |
Objective lens for optical recording media and optical pickup apparatus using the same |
Apr. 1, 2003 |
| 6515808 |
Optical pickup apparatus and objective lens |
Feb. 4, 2003 |
| 6480344 |
Objective lens for optical pick-up |
Nov. 12, 2002 |
| 6426838 |
Polarization dependant multi-focus optical system |
Jul. 30, 2002 |
| 6409141 |
Particle analyzer and composite lens formed by integrally joining plural lens elements of different focal points |
Jun. 25, 2002 |
| 6404563 |
Portable electronic device having variable focus display |
Jun. 11, 2002 |
| RE37717 |
Optical pickup device |
May. 28, 2002 |
| 6396622 |
Electro-optic apparatus and process for multi-frequency variable refraction with minimized dispersion |
May. 28, 2002 |
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