Title:
【発明の名称】光線強度を減少させる装置及び方法
Document Type and Number:
Japanese Patent JPH11507444
Kind Code:
A
Abstract:
A device for selectively reducing the intensity of light in the field of view of an eye or of an optical instrument is described. The device can reduce the light intensity emanating from multiple sources. In one embodiment, an eye gear has a frame, a power source, a light sensor, two light transmissive lenses having an array of shutter elements, user controls and processing circuitry. The user controls are utilized to set user constants to customize the apparatus, and may be used to select a mode of operation. During operation, the light sensor scans the field of view and produces light intensity signals. These light intensity signals are processed with the user constants and preset threshold values. If the light intensity signals exceed any of the threshold values, then one or more elements of the shutter matrices of each lens is darkened.
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Inventors:
Burns, Elwood E.
Application Number:
JP50165797A
Publication Date:
June 29, 1999
Filing Date:
June 06, 1996
Export Citation:
Assignee:
Burns, Elwood E.
International Classes:
G02C7/10; G02C7/12; G02F1/13; G02F1/133; G02C1/00; (IPC1-7): G02C7/10; G02C1/00; G02C7/12; G02F1/13; G02F1/133
Attorney, Agent or Firm:
Masao Okabe (11 others)