GB189917832A - Improvements in and relating to Achromatic Refracting Lenses and Method for Manufacturing the same. - Google Patents

Improvements in and relating to Achromatic Refracting Lenses and Method for Manufacturing the same.

Info

Publication number
GB189917832A
GB189917832A GB189917832DA GB189917832A GB 189917832 A GB189917832 A GB 189917832A GB 189917832D A GB189917832D A GB 189917832DA GB 189917832 A GB189917832 A GB 189917832A
Authority
GB
United Kingdom
Prior art keywords
achromatic
relating
manufacturing
same
lenses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Adrien Besancon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB189917832A publication Critical patent/GB189917832A/en
Expired legal-status Critical Current

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Abstract

17,832. Besanþon, A. Sept. 4. Lenses.-Relates to an automatic compound lens. The space between two lenses g, h of crown glass (or between a lens and a plane sheet) is enclosed by a ring b and filled with a liquid or semi-liquid d, which may or may not harden after insertion. A suitable liquid for the purpose is methyl iodide.
GB189917832D 1899-09-04 1899-09-04 Improvements in and relating to Achromatic Refracting Lenses and Method for Manufacturing the same. Expired GB189917832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189917832T 1899-09-04

Publications (1)

Publication Number Publication Date
GB189917832A true GB189917832A (en) 1900-08-18

Family

ID=32537376

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189917832D Expired GB189917832A (en) 1899-09-04 1899-09-04 Improvements in and relating to Achromatic Refracting Lenses and Method for Manufacturing the same.

Country Status (1)

Country Link
GB (1) GB189917832A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456728A (en) * 1943-10-15 1948-12-21 Svenska Ackumulator Ab Lens system with chromatic aberration and without noticeable magnification
US4913535A (en) * 1989-05-01 1990-04-03 Lockheed Missiles & Space Company, Inc. Apochromatic lens systems
US4966448A (en) * 1989-05-01 1990-10-30 Lockheed Missiles & Space Company, Inc. Optimized apochromatic lens systems using inexpensive lens elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456728A (en) * 1943-10-15 1948-12-21 Svenska Ackumulator Ab Lens system with chromatic aberration and without noticeable magnification
US4913535A (en) * 1989-05-01 1990-04-03 Lockheed Missiles & Space Company, Inc. Apochromatic lens systems
US4966448A (en) * 1989-05-01 1990-10-30 Lockheed Missiles & Space Company, Inc. Optimized apochromatic lens systems using inexpensive lens elements

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