GB316698A - Improvements in x-ray photographic apparatus - Google Patents

Improvements in x-ray photographic apparatus

Info

Publication number
GB316698A
GB316698A GB1389428A GB1389428A GB316698A GB 316698 A GB316698 A GB 316698A GB 1389428 A GB1389428 A GB 1389428A GB 1389428 A GB1389428 A GB 1389428A GB 316698 A GB316698 A GB 316698A
Authority
GB
United Kingdom
Prior art keywords
objective
lenses
component
rays
objectives
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
GB1389428A
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
Priority to GB1389428A priority Critical patent/GB316698A/en
Publication of GB316698A publication Critical patent/GB316698A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)

Abstract

316,698. Luboshez, B. E. May 11, 1923. Lenses.-Photographic objectives, for use in taking photographs of X-ray fluorescent screens, the X-rays not taking part in the formation of the image formed by the objectives, have a large aperture and consist of a number of simple or compound lenses, one being smaller than the others and nearer to the image plane and close to it. The diameter of the smallest lens is greater than that of the image produced. Each of the several examples described comprises two components, the first being a photographic objective and the second one or more highly curved meniscus or plano-convex lenses with the convex surface towards the incident light. The first component directs the incident rays towards the farthermost aplanatic point of the second component and the latter further converges the rays towards its nearer aplanatic point. Examples comprising a number of single lenses for each second component are described, and a modification, Fig. 4, comprises a second component consisting of a plano-convex lens h and a cemented doublet j. Numerical data are given for objectives with aperture from f/0.73 to f/0.54. In use the complete objective D is fitted in one end of a casing G, the other being closed by the X-ray screen H having a lead button J to prevent the X-rays entering the objective. A chamber A housing the film F and the operating mechanism is attached to the partition E supporting the lens D. The various corrections and adjustments of the objective are described in the Specification.
GB1389428A 1928-05-11 1928-05-11 Improvements in x-ray photographic apparatus Expired GB316698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1389428A GB316698A (en) 1928-05-11 1928-05-11 Improvements in x-ray photographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1389428A GB316698A (en) 1928-05-11 1928-05-11 Improvements in x-ray photographic apparatus

Publications (1)

Publication Number Publication Date
GB316698A true GB316698A (en) 1929-08-08

Family

ID=10031301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1389428A Expired GB316698A (en) 1928-05-11 1928-05-11 Improvements in x-ray photographic apparatus

Country Status (1)

Country Link
GB (1) GB316698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558959A1 (en) * 1984-01-26 1985-08-02 Hajime Industries APPARATUS FOR CONTROLLING OBJECT SURFACES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558959A1 (en) * 1984-01-26 1985-08-02 Hajime Industries APPARATUS FOR CONTROLLING OBJECT SURFACES
GB2153552A (en) * 1984-01-26 1985-08-21 Hajime Industries Object inspection apparatus

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