GB779574A - Improvements in or relating to mounts for photographic lenses - Google Patents

Improvements in or relating to mounts for photographic lenses

Info

Publication number
GB779574A
GB779574A GB3359955A GB3359955A GB779574A GB 779574 A GB779574 A GB 779574A GB 3359955 A GB3359955 A GB 3359955A GB 3359955 A GB3359955 A GB 3359955A GB 779574 A GB779574 A GB 779574A
Authority
GB
United Kingdom
Prior art keywords
mount
separate member
back flange
mounts
taylor
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
GB3359955A
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.)
JOHN WALTER GEDDES
Taylor Taylor and Hobson Ltd
Original Assignee
JOHN WALTER GEDDES
Taylor Taylor and Hobson 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 JOHN WALTER GEDDES, Taylor Taylor and Hobson Ltd filed Critical JOHN WALTER GEDDES
Priority to GB3359955A priority Critical patent/GB779574A/en
Publication of GB779574A publication Critical patent/GB779574A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B3/00Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/02Focusing arrangements of general interest for cameras, projectors or printers moving lens along baseboard

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

779,574. Camera lens mounts. GEDDES, J. W., and TAYLOR, TAYLOR & HOBSON, Ltd. Nov. 23, 1955, No. 33599/55. Classes 97(1) and 98(1) A camera lens mount is provided with two external screwthreads A<SP>7</SP>, D<SP>2</SP> of different diameter, each with its corresponding back flange face D<SP>3</SP>, D\ so that the lens may be fitted into either of two cameras having different mechanical back foci and threads of different diameter, the determination of the distance between the two back flange faces being dependent on accurate machining of a separate member secured on the body of the mount. The separate member may carry either or both the screwthreads, and either or both the back flange faces. As shown in Fig. 1, the separate member D carries the larger thread and both back flanges, and is locked on the mount by means of a screw N. Many variations are described. Thus the separate member may be internally threaded to screw on to the smaller thread, and/or the back flange D<SP>1</SP> for the larger thread may be carried by the mount itself or both threads and back flanges may be on the separate member which is secured to the body of the mount. Other means for locking the separate member to the mount are described.
GB3359955A 1955-11-23 1955-11-23 Improvements in or relating to mounts for photographic lenses Expired GB779574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3359955A GB779574A (en) 1955-11-23 1955-11-23 Improvements in or relating to mounts for photographic lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3359955A GB779574A (en) 1955-11-23 1955-11-23 Improvements in or relating to mounts for photographic lenses

Publications (1)

Publication Number Publication Date
GB779574A true GB779574A (en) 1957-07-24

Family

ID=10355008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3359955A Expired GB779574A (en) 1955-11-23 1955-11-23 Improvements in or relating to mounts for photographic lenses

Country Status (1)

Country Link
GB (1) GB779574A (en)

Similar Documents

Publication Publication Date Title
US3682069A (en) Interchangeable lenses camera mounting
GB1208746A (en) Improvements in or relating to optical instruments
GB779574A (en) Improvements in or relating to mounts for photographic lenses
GB826136A (en) Improvements in and relating to screw threads for optical apparatus
GB824867A (en) Wide angle objective
US3012491A (en) Motion picture camera
GB560741A (en) Lens focusing devices
GB882650A (en) Improvements in or relating to television cameras that include optical arrangements comprising a zoom lens
US2472732A (en) Range finder mounting for camera lens turrets
GB978770A (en) Improvements in and relating to photographic lenses
GB1258785A (en)
GB561597A (en) Improvements in or relating to optical systems
GB820737A (en) Photographic teleobjective
GB748910A (en) Improvements in or relating to a variable focus lens attachment for an optical objective
GB563973A (en) Optical comparators
GB817455A (en) Improvements in or relating to reversible lens attachments
FR1296398A (en) TV camera with a dichroic prism behind the lens
GB747153A (en) Improvements in or relating to objectives
GB414992A (en) Improvements in devices for attaching a photographic camera or the like to an optical observation instrument
GB794628A (en) Photographic camera having a detachable shutter and change magazine
GB943751A (en) Mounts for camera objectives
GB871535A (en) Motion picture camera
GB443342A (en) Improvements in photographic cameras
GB791939A (en) Improvements in and relating to lens mounts
CA566595A (en) Photographic camera with range finder