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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Range-finding telescopic sight

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F41G-001/38    G01C-009/02   
미국특허분류(USC) 33/246 ; 356/21
출원번호 US-0260246 (1981-05-04)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 71  인용 특허 : 0
초록
▼

A telescopic sight provides means for determining the range of a target of known size and for compensating for predetermined bullet drop over the target range. Reticles are fixed in both the front and rear focal planes of the sight, and first screw means, calibrated to indicate range, are provided for controllably rotating the erector tube to displace the image of the front reticle, formed in the rear focal plane, so as to bracket the target between the rear reticle cross-hairs and the image of the front reticle. Second screw means, also operable to rota...

대표
청구항
▼

In a telescopic sight of the type comprising an objective lens set, an ocular lens set, an erector lens set disposed between said objective and ocular lens sets, a first reticle, fixed in the rear focal plane of the sight; the improvement comprising in combination: (a) a second reticle fixed in the front focal plane of the sight; (b) means for controllably displacing the image of said second reticle formed in said rear focal plane operable to bracket a target of known size between said first reticle and said image of said second reticle, said displacing ...

이 특허를 인용한 특허 피인용횟수: 71

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