GB1450722A - Discontinuity orientation in a multielement lens - Google Patents

Discontinuity orientation in a multielement lens

Info

Publication number
GB1450722A
GB1450722A GB4592273A GB4592273A GB1450722A GB 1450722 A GB1450722 A GB 1450722A GB 4592273 A GB4592273 A GB 4592273A GB 4592273 A GB4592273 A GB 4592273A GB 1450722 A GB1450722 A GB 1450722A
Authority
GB
United Kingdom
Prior art keywords
lens
light
oct
discontinuities
discontinuity
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
GB4592273A
Other languages
English (en)
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of GB1450722A publication Critical patent/GB1450722A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • H01J9/2272—Devices for carrying out the processes, e.g. light houses
    • H01J9/2273—Auxiliary lenses and filters

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Overhead Projectors And Projection Screens (AREA)
GB4592273A 1972-10-18 1973-10-02 Discontinuity orientation in a multielement lens Expired GB1450722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29864372A 1972-10-18 1972-10-18

Publications (1)

Publication Number Publication Date
GB1450722A true GB1450722A (en) 1976-09-29

Family

ID=23151404

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4592273A Expired GB1450722A (en) 1972-10-18 1973-10-02 Discontinuity orientation in a multielement lens

Country Status (7)

Country Link
JP (1) JPS4975154A (xx)
BE (1) BE806155A (xx)
CA (1) CA998269A (xx)
FR (1) FR2203982B1 (xx)
GB (1) GB1450722A (xx)
IT (1) IT993500B (xx)
NL (1) NL7314288A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1115189B (it) * 1978-05-30 1986-02-03 Rca Corp Lente fresnel
TW460900B (en) * 1999-04-16 2001-10-21 Koninkl Philips Electronics Nv Method of producing a screen for a display device, screen for a display device produced by means of said method and display device provided with said screen
US8079408B2 (en) 2003-09-22 2011-12-20 Bosch Rexroth Corporation Pressure vessel assembly for integrated pressurized fluid system

Also Published As

Publication number Publication date
JPS4975154A (xx) 1974-07-19
CA998269A (en) 1976-10-12
FR2203982A1 (xx) 1974-05-17
DE2352365A1 (de) 1974-05-09
BE806155A (fr) 1974-02-15
AU6080973A (en) 1975-03-27
NL7314288A (xx) 1974-04-22
DE2352365B2 (de) 1977-02-03
FR2203982B1 (xx) 1977-05-27
IT993500B (it) 1975-09-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees