GB1010447A - Improvements in optical systems - Google Patents

Improvements in optical systems

Info

Publication number
GB1010447A
GB1010447A GB3699660A GB3699660A GB1010447A GB 1010447 A GB1010447 A GB 1010447A GB 3699660 A GB3699660 A GB 3699660A GB 3699660 A GB3699660 A GB 3699660A GB 1010447 A GB1010447 A GB 1010447A
Authority
GB
United Kingdom
Prior art keywords
lens
oct
elements
pieces
diameter
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
GB3699660A
Inventor
Samuel Walter Honeyball
Arthur Stewart Bell
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.)
General Precision Systems Ltd
Original Assignee
General Precision Systems 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 General Precision Systems Ltd filed Critical General Precision Systems Ltd
Priority to GB3699660A priority Critical patent/GB1010447A/en
Publication of GB1010447A publication Critical patent/GB1010447A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

1,010,447. Lens system. GENERAL PRECISION SYSTEMS Ltd. Oct. 27, 1961 [Oct. 27, 1960], No. 36996/60. Heading G2J. A composite bi-focal lens is formed from two plano-convex lenses A and B of equal thickness but different diameter by first cutting each lens along a diameter and then reuniting the same pieces to provide two elements each of which has one plane face and is half A and half B as in Fig. 2. A diaphragm C is disposed between the elements. In an alternative, pieces of glass of different refractive index are united and the lens formed therefrom, or the lens may be made from bi-refringent material such as Iceland spar.
GB3699660A 1960-10-27 1960-10-27 Improvements in optical systems Expired GB1010447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3699660A GB1010447A (en) 1960-10-27 1960-10-27 Improvements in optical systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3699660A GB1010447A (en) 1960-10-27 1960-10-27 Improvements in optical systems

Publications (1)

Publication Number Publication Date
GB1010447A true GB1010447A (en) 1965-11-17

Family

ID=10392874

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3699660A Expired GB1010447A (en) 1960-10-27 1960-10-27 Improvements in optical systems

Country Status (1)

Country Link
GB (1) GB1010447A (en)

Similar Documents

Publication Publication Date Title
GB911754A (en) Ophtalmometer
GB824867A (en) Wide angle objective
GB1010447A (en) Improvements in optical systems
GB969020A (en) Improvements in or relating to drum lenses
GB1079987A (en) Stable cylindrical lens systems
GB886051A (en) Infra-red filter
GB975446A (en) Mirror objective particularly suitable for photographic purposes
GB1321041A (en) Composite spectacle type lens production
CA596659A (en) Production of optical and ophtalmic lenses from thermosetting resin materials
GB868201A (en) Optical lens systems
AU219767B2 (en) Improvements in or relating to optical lenses
CA525656A (en) Large-aperture optical systems comprising two reflecting spherical surfaces
GB982520A (en) Improvements in optical systems
GB1034458A (en) Photographic objective
AU3307457A (en) Improvements in or relating to optical lenses
AU2560057A (en) Improvements in or relating to colour-selective optical systems corrected with regard to astigmatism
GB815148A (en) Photographic objective
GB593835A (en) Improvements in or relating to optical objectives
CA596660A (en) Methods of producing optical and ophtalmic lenses from thermosetting resin materials
FR1281019A (en) Spectacle lens with a high refractive index, especially for eyes without lens
GB839723A (en) Improved optical lens system
ES233802A1 (en) New system for clamping glass glasses (Machine-translation by Google Translate, not legally binding)
AU4349058A (en) Improvements. to'or relating to optical glass
GB1321887A (en) Galilean-type telescope system
CA568067A (en) Spectacles with variable light transmission