Navigation Links
Telescope embedded in glasses lens promises to make driving easier for visually impaired
Date:7/24/2008

ptic telescopes are useful and helpful, many potential users have resisted them because of their strange appearance, and because the magnified view through the telescope is narrow.

In the newer glasses, Peli and his co-inventor Dr. Vargas-Martin from the University of Murcia, Spain, designed a wide-field telescope made of straight and curved mirrors built completely within the spectacle lens,

The Journal of Biomedical Optics article describes the process that Peli and his team went through as they created and tested various prototypes of telescopes leading to the design that would be most effective and comfortable for patients with low vision. They started with a telescope made with mirrors and lenses to prove the image shifting principle. To embed the whole telescope inside the spectacle lens they had to obtain the magnifying power from curved mirrors instead of lenses, as mirrors maintain their power when embedded inside the spectacle lens, while the lenses lose their power when not in the air. Regular spherical mirrors can not be tilted without loss of focus, so they constructed a version made with tilted parabolic mirrors. The latter worked well and was in focus, but the images were distorted enough due to the parabolic shape to cause a disturbing effect during head movements. The latest design they constructed is based on spherical and flat mirrors with the flat mirrors implemented as tilted beam splitters that use polarization to reduce light loss.

Says Peli, "The short height of the actual magnifier, its position, and inclusion of a small tilt of the last flat mirror (the one closest to the user's eye), enables the wearer to simultaneously view the magnified field above the unmagnified view of the uninterrupted horizontal field.

Not only will the new glasses improve the cosmetics and usefulness of this type of device, the in-the-lens design will make it possible to mass-produce the telescopic magnifier as a
'/>"/>

Contact: Patti Jacobs
pjacobs12@comcast.net
617-864-2712
Schepens Eye Research Institute
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Ohio scientists develop blue-blocking glasses to improve sleep and ADHD symptoms
2. Prototype terahertz imager promises biochem advances
3. New CPR promises better results by compressing abdomen, not Chest
4. Innovative civil engineering application promises cleaner waters
5. Destruction of Sumatra forests driving global climate change and species extinction
6. The race for biofuels driving alternative sources of biomass
7. Extended wakefulness, combined with alcohol, severely impairs driving performance
8. Alcohol and sleep restriction can affect young mens alertness and driving performance
9. Magnet Lab researchers make observing cell functions easier
10. Researchers find way to make tumor cells easier to destroy
11. Clinical trial that may help patients breathe easier begins at Central DuPage Hospital
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/23/2014)... soils store four times more carbon than the ... can have a big effect on atmospheric greenhouse ... Nature Climate Change concludes that climate ... or affect soil carbon storage, despite increases in ... U.S. Forest Service Research Ecologist Dr. Christian Giardina, ...
(Date:9/23/2014)... a cyberwar against cancer finds that the immune system ... research has found that cancer is already adept at ... the interplay between cancer and the immune system to ... said Rice University,s Eshel Ben-Jacob, co-author of a new ... Proceedings of the National Academy of Sciences . ...
(Date:9/23/2014)... is essential in the development of animals and plants. ... genetic information be translated in a reliable manner to ... The French-flag model of stripe formation is a classic ... different colours of the French flag, is caused by ... high, middle or low concentrations of the morphogen a ...
Breaking Biology News(10 mins):Study helps assess impact of temperature on belowground soil decomposition 2Immune system is key ally in cyberwar against cancer 2Immune system is key ally in cyberwar against cancer 3Recreating the stripe patterns found in animals by engineering synthetic gene networks 2
... patient, according to a study recently published in PLoS ... and includes bacteria common in the environment, some of ... "This is the first reported case of invasive human ... the article. , The new bacterium ...
... derived human gene trees by Alan R. Templeton, Ph.D, ... major waves of human migration out of Africa instead ... 'Out of Africa' replacement theory. , That theory holds ... ago and wiped out existing populations of humans. ...
... that normally develops when a mouse repeatedly experiences defeat ... gene for a memory molecule in a brain circuit ... of Health's (NIH) National Institute of Mental Health (NIMH) ... molecule continued to welcome strangers in spite of repeated ...
Cached Biology News:Scientists discover a new disease-causing bacterium in an immune-compromised patient 2New analysis shows three human migrations out of Africa 2Mice lacking social memory molecule take bullying in stride 2Mice lacking social memory molecule take bullying in stride 3
(Date:9/23/2014)... 23, 2014 News Facts ... devoted to genome-based research for human health and ... is taking a bite out of oral cancer with its ... India with the help of state-of-the-art ... Networks (DDN). , To fuel its cutting-edge cancer research, ...
(Date:9/23/2014)... , September 23, 2014 ... System Transfer     Devices  (CSTD) for ... with Taiwanese distributor MedFront Medical Technology Corporation.  Equashield,s leading CSTD ... Taiwan , China ... company continues to expand globally, and throughout the ...
(Date:9/23/2014)... The Minnesota High Tech Association (MHTA) ... modems , platforms and application-specific remote monitoring systems, ... the 2014 Tekne Awards. The awards ceremony ... Center on Thursday, November 13th. The Tekne Awards ... superior technology innovation and leadership. , The ...
(Date:9/22/2014)... , September 22, 2014 ... announced the addition of the "Global Biotechnology ...      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) Biotechnology ... added to a system to detect and examine ... are generally used in laboratories to prepare, collect, ...
Breaking Biology Technology:National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 2National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 3National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 4National Institute of Biomedical Genomics (NIBMG) Deploys DataDirect Networks Storage to Achieve Significant Performance Improvement in World-Class Genomics Research and Collaboration for Oral Cancer 5Equashield Enters Taiwan Following Expansion to Australia, Japan, China 2NimbeLink Named Finalist for 15th Annual Tekne Awards 2NimbeLink Named Finalist for 15th Annual Tekne Awards 3Global Biotechnology Reagents Market 2014-2018: Key Vendors are Agilent, BD Biosciences, Bio-Rad, F. Hoffmann-La Roche, Sigma-Aldrich and Thermo Fisher 2Global Biotechnology Reagents Market 2014-2018: Key Vendors are Agilent, BD Biosciences, Bio-Rad, F. Hoffmann-La Roche, Sigma-Aldrich and Thermo Fisher 3
... the World,s 3rd Largest Biotech Cluster By ... Developing more than 175 Local Companies, SAN ... 30th Anniversary Reunion for Hybritech employees will,take place on Saturday, ... Diego., In September 1978 Hybritech, San Diego,s "Granddaddy" biotech ...
... Inc., (TSX: IXS.V, OTC Bulletin Board: IXSBF, http://www.ixsbio.com ... of monoclonal antibodies based on its Dynamic Cross ... of Directors., Mr. Warden was a founding ... 23 years of practice, he has represented both ...
... Inc. (OTC Bulletin Board: CHBT) (,China-Biotics," "the,Company"), ... manufacture,research, development, marketing and distribution of probiotics ... equipment for its new manufacturing,facility., The ... is,located in Qing Pu Industrial Park (the ...
Cached Biology Technology:San Diego's Original Biotech Company Celebrates 30th Anniversary With Reunion 2InNexus Biotechnology Strengthens Patent Team With New Leadership 2China-Biotics, Inc. Provides Update on Construction of New Manufacturing Facility 2