Caroline Yu

US Patent:

20010005281, Jun 28, 2001

Filed:

Feb 2, 2001

Appl. No.:

09/776401

Inventors:

Caroline Yu - New York NY, US

International Classification:

G02B023/00
G02B005/30
G02B027/28

US Classification:

359/400000, 359/437000, 359/482000, 359/483000, 359/808000

Abstract:

An optical system for providing a viewer with contrast between a golf ball and its environment, including a light filter and at least one polarizer mounted in a viewing device. The light filter has no more than about 20% transmittance of light in one of the range of wavelengths of from about 500 nm to about 700 nm. The viewing device allows for the light filter and the polarizer to be arranged in front of at least one eye of the viewer. The optical system can be provided in a spotting scope, a pair of eyeglasses or an attachment to eyeglasses for ease of use.