Book shade apparatus

Details Book shade apparatus Book shade apparatus

1994-11-14

1996-08-06

Nguyen, Thong Q.

Optical: systems and elements

Glare or unwanted light reduction

With absorption means

359601, 359612, G02B 2700, G02B 2316

Patent

active

055439675

ABSTRACT:
A book shade apparatus comprising a structure placed over two open pages of a book in bright sunlight conditions, for reducing the amount of light reflected from the two open pages of the book into the eyes of a person reading the book including a pair of flexible sheets having sunlight reducing characteristics of sunglasses and sized to fit over the two open pages of the book.

REFERENCES:
patent: 3324823 (1967-06-01), Peters
patent: 3712712 (1973-01-01), Bosma
patent: 3790420 (1974-02-01), Jenei
patent: 3809352 (1974-05-01), Mathias
patent: 4681251 (1987-07-01), Holladay
patent: 4875708 (1989-10-01), Sremba et al.

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