GB190814673A - Improvement in Photographic Lenses. - Google Patents

Improvement in Photographic Lenses.

Info

Publication number
GB190814673A
GB190814673A GB190814673DA GB190814673A GB 190814673 A GB190814673 A GB 190814673A GB 190814673D A GB190814673D A GB 190814673DA GB 190814673 A GB190814673 A GB 190814673A
Authority
GB
United Kingdom
Prior art keywords
improvement
photographic lenses
beck
glass
lens
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
Conrad Beck
Horace Courthope Beck
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 GB190814673A publication Critical patent/GB190814673A/en
Expired legal-status Critical Current

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Abstract

14,673. Beck, C., and Beck, H. C. July 10. [Patent of Addition to No. 27,180, A.D. 1906.] Lenses.-The five-lens objective described in Specification No. 27,180, A.D. 1906, is modified by a positive lens L<4> made of glass of low dispersive power being combined with the negative lens L<3> of more highly dispersive glass.
GB190814673D 1906-11-29 1908-07-10 Improvement in Photographic Lenses. Expired GB190814673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190627180T 1906-11-29

Publications (1)

Publication Number Publication Date
GB190814673A true GB190814673A (en) 1909-07-12

Family

ID=32631919

Family Applications (2)

Application Number Title Priority Date Filing Date
GB190627180D Expired GB190627180A (en) 1906-11-29 1906-11-29 Improvement in Photographic Lenses.
GB190814673D Expired GB190814673A (en) 1906-11-29 1908-07-10 Improvement in Photographic Lenses.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB190627180D Expired GB190627180A (en) 1906-11-29 1906-11-29 Improvement in Photographic Lenses.

Country Status (1)

Country Link
GB (2) GB190627180A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430150A (en) * 1942-08-25 1947-11-04 Taylor Taylor & Hobson Ltd Optical objective
US3051053A (en) * 1958-10-10 1962-08-28 Zeiss Carl Photographic objective
DE1186236B (en) * 1958-08-30 1965-01-28 Leitz Ernst Gmbh Fast photographic lens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2430150A (en) * 1942-08-25 1947-11-04 Taylor Taylor & Hobson Ltd Optical objective
DE1186236B (en) * 1958-08-30 1965-01-28 Leitz Ernst Gmbh Fast photographic lens
US3051053A (en) * 1958-10-10 1962-08-28 Zeiss Carl Photographic objective

Also Published As

Publication number Publication date
GB190627180A (en) 1907-04-18

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