Fluidic adaptive lens with high focal length tunability

Zhang, De-Ying; Lien, Victor; Berdichevsky, Yevgeny; Choi, Jaehyuck; Lo, Yu-Hwa
May 2003
Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3171
Academic Journal
Fluidic adaptive lenses with an adjustable focal length over a wide range were demonstrated in this letter. The focal length adjustment was achieved by changing the shape of the fluidic lens without any mechanical moving parts. The shortest focal length demonstrated in such devices is 41 mm, which corresponds to a large numerical aperture of 0.24 and a small F number of 2.05. The highest resolution measured using a positive standard is 25.39 lp/mm in this fluidic adaptive lens.


Related Articles

  • Compound refractive lenses focus hard x-rays. Wallace, John // Laser Focus World;Sep99, Vol. 35 Issue 9, p24 

    Provides information on compound refractive lens (CRL), an optical system developed by researchers in Aachen, Germany. Materials used to create CRL; Testing of optical system; Plans to increase the system's lateral resolution.

  • Zeiss | Diascope 85 T FL. W.V.Z. // Field & Stream;Dec2003/Jan2004, Vol. 108 Issue 8, p124 

    An antelope can seem like a ghost at a distance of 3 miles across open country if one doesn't have a spotting scope that's up to the task. So Western hunters out for pronghorns, elk, or muleys—and anyone looking for game at long ranges—should pack some serious glass. The Diascope's...

  • Lens considerations change for large-format cameras. Govier, Jeremy // Vision Systems Design;May2007, Vol. 12 Issue 5, p27 

    The article focuses on the factors being considered in selecting lenses for large-format cameras. It mentions that more photographic lenses are available for larger sensors. It states there are strict requirements on size, resolution over the entire field, and evenness of the illumination when...

  • A Confused Photographer.  // Smart Photography;Feb2013, Vol. 11 Issue 8, p49 

    The article presents an answer to a question regarding the resolution settings and the lens quality in digital cameras.

  • Flexible Imaging Lens Designs. James, Nicholas D. // Quality;Mar2011 Supplement, Vol. 50, p21 

    The article discusses various techniques in imaging lens design. It notes the significance of considering the versatility and manufacturability of the lens in designing lenses. It also highlights the complexities in designing lenses due to increasing camera sensor resolutions and decreasing...

  • LIGHT READING. HOLBEN, JAY // Digital Video;Mar2013, Vol. 21 Issue 3, p76 

    The article focuses on creating and controlling lens flare. It says that avoiding flare calls for shielding the lens from stray line and lens shade is a line of defense against flares. It states that flare lessens the performance of a lens through the reduction of imaging contrast, resolution...

  • HDTV lens design: Technology and costs. Thorpe, Larry; Tubbs, Gordon // Broadcast Engineering (World Edition);Sep2006, Vol. 48 Issue 9, p42 

    The article discusses significant advancements in high definition television (HDTV) program-origination equipment. It cites the major subsystems of a contemporary zoom lens that add cost in a professional lens such as its optomechanical system. It also differentiates an HDTV lens to a standard...

  • Inspection applications push imaging lenses into the deep. Smirnov, Stanislav; Sobolev, Kirill; Tirri, Bruce; Joobeur, Adel; Lewis, Rick // Laser Focus World;Jul2008, Vol. 44 Issue 7, p72 

    The article reports on the developments of optical-image technology. The need for high resolution is the main driver of an objection design for 45-nm critical-layer mask inspection. Semiconductor inspection and yield-enhancing tools are pushing design of imaging objectives into the...

  • Nanoscale optics: Random resolution. Bacsa, Wolfgang S. // Nature Nanotechnology;Jun2011, Vol. 6 Issue 6, p335 

    The article reports on the scannable lens that is capable of an improved resolution developed by Allard Mosk and his colleagues in Amsterdam as of June 2011. The exploitation of the random scattering behavior of a strongly disordered surface rather than a polished surface of a lens is described...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics