GB889220A - Optical apparatus for observing the surface of a moving web - Google Patents

Optical apparatus for observing the surface of a moving web

Info

Publication number
GB889220A
GB889220A GB39298/59A GB3929859A GB889220A GB 889220 A GB889220 A GB 889220A GB 39298/59 A GB39298/59 A GB 39298/59A GB 3929859 A GB3929859 A GB 3929859A GB 889220 A GB889220 A GB 889220A
Authority
GB
United Kingdom
Prior art keywords
web
mirror
drum
observing
synchronism
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
GB39298/59A
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.)
NAT LAB AND Manufacturing CORP
Original Assignee
NAT LAB AND Manufacturing CORP
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 NAT LAB AND Manufacturing CORP filed Critical NAT LAB AND Manufacturing CORP
Publication of GB889220A publication Critical patent/GB889220A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G01P3/40—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light using stroboscopic means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

889,220. Optical stroboscopic apparatus. NATIONAL LABORATORIES & MANUFACTURING CORPORATION. Nov. 19, 1959 [May 8, 1959], No. 39298/59. Class 97(1). Apparatus for observing an image of successive impressions equidistantly spaced on a printed web comprises means to guide the web along a path which is straight on either side of its mid-point and bent towards a rotating mirror drum rotated in synchronism with the web whereby, when the light rays reflected by the mirror drum are viewed, a substantially stationary image is seen. As shown in Fig. 1, rollers 12, 13 and 14 guide the web along a path which is concave towards the mirror drum 32 rotated in synchronism with the moving web, the light rays from this drum being reflected to an oscillating mirror 59 so that stationary image of each impression on the web can be viewed through an eyepiece 77. The mirror drum and the associated rocking mirror are preferably constructed and arranged as described in Specification 754,026.
GB39298/59A 1959-05-08 1959-11-19 Optical apparatus for observing the surface of a moving web Expired GB889220A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US889220XA 1959-05-08 1959-05-08

Publications (1)

Publication Number Publication Date
GB889220A true GB889220A (en) 1962-02-07

Family

ID=22214287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39298/59A Expired GB889220A (en) 1959-05-08 1959-11-19 Optical apparatus for observing the surface of a moving web

Country Status (1)

Country Link
GB (1) GB889220A (en)

Similar Documents

Publication Publication Date Title
ES430264A1 (en) Varioslit
GB889220A (en) Optical apparatus for observing the surface of a moving web
JPS51113425A (en) Optical system for image sensor
JPS5340583A (en) Inspecting apparatus for bottle.s bottom
JPS51135529A (en) Ophthalmofundus photographing device with an anterior eye illumination system
JPS5218327A (en) Electrophotographic copying machine
JPS5666848A (en) Improved method for preparing seamless printing master
JPS53119679A (en) Mask alignment device
GB606178A (en) Improvements in or relating to machines, used for the production of decorative designs
GB909038A (en) Improvements relating to the counting of the number of markings on the surface of a member
GB1203016A (en) Improvements in and relating to photographic exposure arrangements
JPS5216235A (en) Image forming device of screen drum type
JPS5271240A (en) Electrophotography
JPS5245990A (en) Device for photographing rotating body
JPS5260141A (en) Manufacture of electrophotographic light sensitive plate
GB841409A (en) Optical apparatus for observing opposed surfaces of a moving strip
GB1021317A (en) Method and apparatus for inspecting printed patterns on a running web
JPS523427A (en) Reflecting mirror's dust-proof device of duplicator's exposure mechani sm
JPS529436A (en) Image forming device with variable magnification mechanism
GB845528A (en) Improvements in or relating to optical projection pantometers
JPS5260126A (en) Reduced scale image input device
JPS522783A (en) Defect detecting device
JPS51136287A (en) Photo mask using non-crystalline carchognide glass thin film
GB682232A (en) Improvements in or relating to photographic cameras
JPS5345908A (en) Subscriber scanning system