FI90921B - Glasögon med reglerbar genomsynlighet - Google Patents

Glasögon med reglerbar genomsynlighet Download PDF

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Publication number
FI90921B
FI90921B FI884404A FI884404A FI90921B FI 90921 B FI90921 B FI 90921B FI 884404 A FI884404 A FI 884404A FI 884404 A FI884404 A FI 884404A FI 90921 B FI90921 B FI 90921B
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FI
Finland
Prior art keywords
liquid crystal
cells
voltage
glasses according
crystal
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Application number
FI884404A
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English (en)
Finnish (fi)
Other versions
FI884404A0 (sv
FI884404A (sv
FI90921C (sv
Inventor
Daniele Senatore
Original Assignee
Bulgari Gianni Spa
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Publication of FI884404A publication Critical patent/FI884404A/sv
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Application granted granted Critical
Publication of FI90921C publication Critical patent/FI90921C/sv

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A61F9/065—Masks, shields or hoods for welders use of particular optical filters
    • A61F9/067—Masks, shields or hoods for welders use of particular optical filters with variable transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13324—Circuits comprising solar cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13706—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having positive dielectric anisotropy
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13712—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having negative dielectric anisotropy
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13731—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition
    • G02F1/13737—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on a field-induced phase transition in liquid crystals doped with a pleochroic dye

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)

Claims (20)

1. Glasögon med reglerbar genomsynlighet, innefattande linser som framställts av icke-diffunderande celler av fly-tande kristall, ett organ som är lämpligt för päföring av en 10 elektrisk spänning pä cellema samt ett organ för regiering av spänningen, kannetecknade av att cellerna utgöres av ko-lesterisk-nematiska, fasändrande tväfärgade celler av fly-tande kristall som transmitterar ljus i vila och absorberar ljus i exciterat tillständ, med en flytande kristall med en 15 dubbelbrytning mindre än 0,12 och en negativ dielektisk an-isotropi, varvid kristallens molekyler av väggarna päföres en vertikal eller nästan vertikal axialitet och värdet pä den spontana stigningen är lika med 0,9-4 gänger cellens tjocklek. 20
2. Glasögon enligt patentkravet 1, kännetecknade av att stigningen är lika med 1,1-1,7 gänger cellens tjocklek och att den spontana totala torsionen ligger mellan 6/10 och 9/10 av en vinkel pä 360°. 25
3. Glasögon enligt patentkravet 1 eller 2, kännetecknade av att axialiteten är sädan att kristallens molekyler avvi-ker frän vertikalplanet med 1°-10°.
4. Glasögon enligt patentkravet 3, kännetecknade av att axialiteten är sädan att kristallens molekyler avviker frän vertikalplanet med 2°-5°.
5. Glasögon enligt patentkraven 1-4, kännetecknade av att 35 axialiteten är sädan att kristallens molekyler är anordnade i vertikala pian, varvid planens orientering genom cellens tjocklek är vridförskjuten med en vinkel närä den flytande kristallens spontana totala torsion.
6. Glasögon med reglerbar genomsynlighet, innefattande linser som framställts av icke-diffunderande celler av fly-tande kristall, ett organ för päföring av en elektrisk spanning pd cellerna samt ett organ för regiering av spänningen, 5 kännetecknade av att cellerna utgöres av kolesterisk-nema-tiska, fasdndrande tvdfärgade celler av flytande kristall som absorberar ljus i vila och transmitterar ljus i excite-rat tillstand, med en flytande kristall med en dubbelbryt-ning mindre än 0,12 och en positiv dielektrisk anisotropi, 10 varvid kristallen av minst en av vdggarna pdföres en axiali-tet som är parallell eller nastan parallell med vdggen, i enlighet med en given riktning, värdet pd stigningen är hög-re än halva tjockleken pd själva cellen och den effektiva torsionen, vid vila, dr lika med 1/4-2 ganger en vinkel pd 15 360°.
7. Glasögon enligt patentkravet 6, kännetecknade av att den effektiva totala torsionen, vid vila, av den flytande kristallen genom cellens tjocklek, ligger mellan 1/2-3/2 av 20 en vinkel pd 360°.
8. Glasögon enligt patentkravet 6 eller 7, kännetecknade av att axialiteten är sddan att kristallens molekyler bildar en vinkel med horisontalplanet som ej överstiger 25°. 25
9. Glasögon enligt patentkravet 8, kännetecknade av att axialiteten är sddan att kristallens molekyler bildar en vinkel med horisontalplanet som dr lika med 2°-15°.
10. Glasögon enligt ndgot av patentkraven 1-9, känneteckna de av att organet för päföring av en elektrisk spanning bil-das av en elektronisk krets som vid anslutningarna tili cellen alstrar en reglerbar spänning, vars effektiva värde är högre än tröskelvärdet, inte innehdller nägra likströmskom-35 ponenter och har en frekvens som är tillräckligt hög för att inte medge jonpassage in i den flytande kristallen. 90921
11. Glasögon enligt patentkravet 10, kannetecknade av att organet för päföring av en elektrisk spanning inkluderar en induktansspole som är elektriskt avstämd med cellens kapaci-tanser. 5
12. Glasögon enligt patentkravet 10 eller 11, kännetecknade av att den av den elektroniska kretsen alstrade spänningen regleras med manuella och/eller automatiska medel.
13. Glasögon enligt patentkravet 12, kännetecknade av att de automatiska medlen för spänningens regiering utgöres av elektroniska kretsar som aktiveras av en fotocell.
14. Glasögon enligt patentkravet 12 eller 13, kännetecknade 15 av att den manuellt reglerbara anordningen för regiering av spänningen inkluderar vissa elektroniska kretsar som styrs med touchtangenter.
15. Glasögon enligt patentkravet 12 eller 13, kännetecknade 20 av att de manuella medlen för regiering av spänningen inkluderar en potentiometer.
16. Glasögon enligt patentkravet 12 eller 13, kännetecknade av att de manuella medlen för regiering av spänningen inklu- 25 derar en variabel kondensator.
17. Glasögon enligt patentkravet 12 eller 13, kännetecknade av att den manuellt reglerbara anordningen för regiering av spänningen inkluderar en variabel induktansspole. 3 0
18. Glasögon enligt nägot av de föregäende patentkraven, kännetecknade av att glas- eller plastmaterialet behandlas eller färgas sä att det absorberar ultraviolett strälning.
19. Glasögon enligt nägot av de föregäende patentkraven, kännetecknade av att bärarna eller stöden för cellerna ut-formas av krökta linser för glasögon, i glas- eller plastma-terial, och bearbetade ätminstone frän insidan med en pre- cision som medger skillnader i storlek och välvning, i för-h&llande till en idealisk yta, pä ndgra mikroraeter resp. nägra mikrometer/cm2.
20. Glasogon enligt n&got av patentkraven 1-18, kanne- tecknade av att linserna framställes av ett enda sammanhän-gande element av ett som visir eller bländningsskydd format plastmaterial.
FI884404A 1986-03-24 1988-09-26 Glasögon med reglerbar genomsynlighet FI90921C (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT4780986 1986-03-24
IT47809/86A IT1190508B (it) 1986-03-24 1986-03-24 Occhiali a trasparenza regolabile
IT8700024 1987-03-23
PCT/IT1987/000024 WO1987006018A1 (en) 1986-03-24 1987-03-23 Adjustable transparency spectacles

Publications (4)

Publication Number Publication Date
FI884404A0 FI884404A0 (sv) 1988-09-26
FI884404A FI884404A (sv) 1988-09-26
FI90921B true FI90921B (sv) 1993-12-31
FI90921C FI90921C (sv) 1994-04-11

Family

ID=11262650

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884404A FI90921C (sv) 1986-03-24 1988-09-26 Glasögon med reglerbar genomsynlighet

Country Status (10)

Country Link
US (1) US5067795A (sv)
EP (1) EP0298983B1 (sv)
AU (1) AU616636B2 (sv)
BR (1) BR8707645A (sv)
DE (1) DE3788278T2 (sv)
FI (1) FI90921C (sv)
HK (1) HK23296A (sv)
IT (1) IT1190508B (sv)
RU (1) RU2063061C1 (sv)
WO (1) WO1987006018A1 (sv)

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EP0298983B1 (en) 1993-11-24
IT1190508B (it) 1988-02-16
AU7200487A (en) 1987-10-20
AU616636B2 (en) 1991-11-07
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IT8647809A0 (it) 1986-03-24
DE3788278D1 (de) 1994-01-05
FI884404A0 (sv) 1988-09-26
BR8707645A (pt) 1989-03-14
RU2063061C1 (ru) 1996-06-27
DE3788278T2 (de) 1994-03-31
FI884404A (sv) 1988-09-26
WO1987006018A1 (en) 1987-10-08
US5067795A (en) 1991-11-26
EP0298983A1 (en) 1989-01-18
FI90921C (sv) 1994-04-11

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