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United States of America Patent
Stats
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Dec 6, 2005
Grant Date -
Sep 16, 2004
app pub date -
Apr 12, 2002
filing date -
Apr 13, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vision assisting apparatus includes a casing for forming an inversely U-shaped optical path, a light entry, provided at one end of the optical path, through which light enters, a light exit, provided at another end of the optical path, through which light exits in an opposite direction to the light entry, an optical system for processing an image entered via the light entry by using the optical pass and outputting a processed image via the light exit, and attaching structure for attaching the casing to a wearer so that the light exit is positioned close to an eye of the wearer. By forming the inversely U-shaped optical path with the casing, it is possible to provide a sufficiently long optical path in a compact form. Accordingly it is possible to provide the vision assisting apparatus that does not hide facial expressions, is easy to use, and can provide a sufficient length for setting a magnifying optical system without extending the distance in the horizontal direction between the light entry and the light exit.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NITTOH KOGAKU K K | 1538 KAMIKAWA 1-CHOME SUWA-SHI NAGANO 3920131 | |
TOSHINORI TSUCHIYA | 6-21 SHIMIZU 3-CHOME MIYAZAKI-SHI MIYAZAKI 880-0021 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hara, Hideo | Suwa, JP | 69 | 473 |
Koizumi, Fumiaki | Okaya, JP | 20 | 117 |
Sakai, Yasuhiro | Suwa, JP | 63 | 691 |
Shimizu, Kazunaga | Hara-mura, JP | 3 | 15 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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