GB841165A - Improvements in or relating to optical sighting and aligning instruments - Google Patents

Improvements in or relating to optical sighting and aligning instruments

Info

Publication number
GB841165A
GB841165A GB37873/57A GB3787357A GB841165A GB 841165 A GB841165 A GB 841165A GB 37873/57 A GB37873/57 A GB 37873/57A GB 3787357 A GB3787357 A GB 3787357A GB 841165 A GB841165 A GB 841165A
Authority
GB
United Kingdom
Prior art keywords
reticle
objective
eyepiece
focal plane
light
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
GB37873/57A
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.)
Ernst Leitz Canada Ltd
Original Assignee
Ernst Leitz Canada Ltd
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 Ernst Leitz Canada Ltd filed Critical Ernst Leitz Canada Ltd
Publication of GB841165A publication Critical patent/GB841165A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/10—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator

Abstract

841,165. Telescopes. LEITZ (CANADA) Ltd., E. Dec. 5, 1957 [Dec. 10, 1956], No. 37873/57. Class 97(1) An optical sighting and aligning instrument has a first reticle arranged in the focal plane, or an objective, an eyepiece for observing this reticle, a beam divider positioned between the objective and its focal plane to allow part of a beam from the objective to reach the first reticle and directing another part of the beam to deflecting means and a second reticle both provided, near the objective, means being provided for observing the second reticle. As shown, the telescope 6 is axially movable by a rack and pinion 7 in a stand 6a for focusing and has a semitransparent plate 14 carried by the stand and disposed between the objective 8 and twin eyepieces 12, 13. This plate allows part of the light from objective 8 to reach a reticle 11 in the focal plane of the objective and the reticulus part of the incident light on to a reflecting surface 10 and a reticle 91 which is imaged by a lens 16 in the eyepiece 13. In this way an image of an illuminated reticle 4 in the focal plane of an objective 2 is in focus in eyepiece 12 which an image of a reticle 3 is formed as reticle 91 and so is in focus in eyepiece 13. A single eyepiece may be used in which case prismatic reflectors direct the light from lens 16 through two right angles into the eyepiece.
GB37873/57A 1956-12-10 1957-12-05 Improvements in or relating to optical sighting and aligning instruments Expired GB841165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE841165X 1956-12-10

Publications (1)

Publication Number Publication Date
GB841165A true GB841165A (en) 1960-07-13

Family

ID=6765893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37873/57A Expired GB841165A (en) 1956-12-10 1957-12-05 Improvements in or relating to optical sighting and aligning instruments

Country Status (1)

Country Link
GB (1) GB841165A (en)

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