[특허]Glasses for the correction of chromatic and thermal optical aberations for lenses transmitting in the near, mid, and far-infrared sprectrums

Glasses for the correction of chromatic and thermal optical aberations for lenses transmitting in the near, mid, and far-infrared sprectrums 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C03C-003/32 G02B-013/14
출원번호	US-0452271 (2012-04-20)
등록번호	US-9187360 (2015-11-17)
발명자 / 주소	Carlie, Nathan Aaron
출원인 / 주소	SCHOTT CORPORATION
대리인 / 주소	Millen, White, Zelano, Branigan, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 33

초록 ▼

The invention relates to chalcogenide glass compositions for use in a lens system to balance thermal effects and chromatic effects and thereby provide an achromatic and athermal optical element that efficiently maintains achromatic performance across a broad temperature range. The glass composition is based on sulfur compounded with germanium, arsenic and/or gallium, and may further comprise halides of, for example, silver, zinc, or alkali metals. Alternatively, is based on selenium compounded with gallium, and preferably germanium, and contains chlorides and/or bromides of, for example, zinc, lead or alkali metals.

대표청구항 ▼

1. A chalcogenide glass composition comprising (based on mol % of total moles): ComponentMole %Se30.00-68.00 Ga5.00-30.00 Ge0-25.00R10-25.00(added in the form ofR1Hal1)R20-25.00(added in the form ofR2Hal1)M10-12.50(added in the form ofM1Hal12)M20-20.00(added in the form ofM2Hal12)Ln0-8 (added in the form ofLnHal13)Sum of Se, Ga, and Ge50.00-93.33 Sum of R1, R2, M1, M2 and1.67-25.00 LnSum of Hal16.00-25.00 wherein Hal1=chloride and/or bromide,R1=Li, Na, K, Rb, and/or Cs,R2=Ag and/or Cu,M1=Mg, Ca, Sr, and/or Ba,M2=Zn, Cd, Hg, and/or Pb, andLn=La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Ty, Lu, Y, and Sc; andwherein a portion of the gallium can be replaced by indium. 2. A chalcogenide glass composition according to claim 1, wherein said composition comprises (based on mol %): ComponentMole %Se30.00-68.00 Ga5.00-30.00 Ge0-25.00R10-25.00(added in the form ofR1Hal1)R20-25.00(added in the form ofR2Hal1)M10-12.50(added in the form ofM1Hal12)M20-20.00(added in the form ofM2Hal12)Ln0-8 (added in the form ofLnHal13)Sum of Se, Ga, and Ge50.00-93.33 Sum of R1, R2, M1, M2, and1.67-25.00 LnSum of Hal16.00-25.00. 3. A chalcogenide glass composition according to claim 2, wherein said composition comprises (based on mol %): ComponentMole %Se35.00-65.00Ga 7.00-22.00Ge18.00-23.00R1 0-20(added in the form ofR1Hal1)R2 0-20.00(added in the form ofR2Hal1)M1 0-10(added in the form ofM1Hal12)M2 0-15.00(added in the form ofM2Hal12)Ln0-5(added in the form ofLnHal13)Sum of Se, Ga, and Ge55.00-85.00Sum of R1, R2, M1, M2 and 1.67-22.00LnSum of Hal1 7.5-22.00. 4. A chalcogenide glass composition according to claim 2, wherein said composition contains 30.00-65.00 mol % of selenium. 5. A chalcogenide glass composition according to claim 2, wherein said composition contains 15-25.00 mol % Ge. 6. A chalcogenide glass composition according to claim 2, wherein said composition contains 5-22.00 mol % Ga. 7. A chalcogenide glass composition according to claim 2, wherein a portion of the gallium is replaced by indium. 8. A chalcogenide glass composition according to claim 2, wherein said composition contains 6.00-15.00 mol % Hal1. 9. A chalcogenide glass composition according to claim 2, wherein said composition contains 7.00-25.00 mol % Hal1. 10. A chalcogenide glass composition according to claim 2, wherein said composition contains 7.00-15.00 mol % Hal1. 11. A chalcogenide glass composition according to claim 2, wherein said composition contains 6.00-10.00 mol % Hal1. 12. A chalcogenide glass composition according to claim 2, wherein said composition contains 7.00-10.00 mol % Hal1. 13. A chalcogenide glass composition according to claim 2, wherein said composition contains 0 mol % Ge. 14. In a night vision device comprising an infrared optical element, an image enhancer or intensifier, and a phosphor or fluorescent display, the improvement wherein said infrared optical element comprises a lens made of from a chalcogenide glass composition according to claim 1. 15. In an infrared or thermal imaging system comprising an infrared optical element, a plurality of thermal sensors for detecting the infrared light and converting it into electrical signals, and a signal-processing unit for converting the electrical signals into a visual image, the improvement wherein said infrared optical element comprises a lens made of from a chalcogenide glass composition according to claim 1. 16. A doublet lens comprising an infrared lens paired with a corrective lens wherein said infrared lens is made of ZnSe, ZnS, Ge, GaAs, BaF2, or chalcogenide glass, and said corrective lens made from a chalcogenide glass composition according to claim 1. 17. An infrared lens system comprising a first infrared lens and a focal corrector doublet lens comprising a pair of corrective lenses, wherein said first infrared lens is made of ZnSe, ZnS, Ge, GaAs, BaF2, or chalcogenide glass, one of said pair of corrective lenses has a positive power and the other has a negative power, and at least one of said pair of corrective lens is made from a chalcogenide glass composition according to claim 1.

이 특허에 인용된 특허 (33)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Glasses for the correction of chromatic and thermal optical aberations for lenses transmitting in the near, mid, and far-infrared sprectrums 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (33)

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Glasses for the correction of chromatic and thermal optical aberations for lenses transmitting in the near, mid, and far-infrared sprectrums 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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