Optical: systems and elements – Compound lens system – Telescope
Patent
1997-08-18
1999-11-16
Nguyen, Thong
Optical: systems and elements
Compound lens system
Telescope
359480, G02B 2702, G02B 2722
Patent
active
059868023
ABSTRACT:
A collapsible binocular foldable between an open operable position and a closed position made of a semirigid material. The foldable binocular includes an objective lens panel, an ocular lens panel and top and bottom panels hingedly connected to the objective and ocular lens panels. A lateral flap is attached to and extends outward from the lateral edges of the front panel. The objective, ocular and top and bottom panels define the side opening which is generally trapezoidally shaped in the open position. The lateral flaps include a middle portion which is likewise generally trapezoidally shaped and which covers the side openings when the binocular is in the open position. The lateral flap has a length which is greater than a length of the side openings so that when the lateral flap is closed to cover the side openings, the flap will engage the ocular lens panel to prevent overinsertion.
REFERENCES:
patent: 2768554 (1956-10-01), Leslie
patent: 4013341 (1977-03-01), Riley
patent: 4239328 (1980-12-01), Justice, Sr. et al.
patent: 4268111 (1981-05-01), Green et al.
patent: 4443071 (1984-04-01), Ueda
patent: 4478498 (1984-10-01), Ohno
patent: 4486079 (1984-12-01), Ueda
patent: 4773747 (1988-09-01), Bresnahan
patent: 4964709 (1990-10-01), Hoeptner
patent: 5552932 (1996-09-01), Schultz
LandOfFree
Foldable binocular assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Foldable binocular assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Foldable binocular assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1331602