IT1262530B - Strumento ottico a forma di occhiale, oculare, monocolo o simile con lenti a cristalli liquidi. - Google Patents

Strumento ottico a forma di occhiale, oculare, monocolo o simile con lenti a cristalli liquidi.

Info

Publication number
IT1262530B
IT1262530B ITFI930196A ITFI930196A IT1262530B IT 1262530 B IT1262530 B IT 1262530B IT FI930196 A ITFI930196 A IT FI930196A IT FI930196 A ITFI930196 A IT FI930196A IT 1262530 B IT1262530 B IT 1262530B
Authority
IT
Italy
Prior art keywords
eye
optical instrument
liquid crystal
eyewear
monocular
Prior art date
Application number
ITFI930196A
Other languages
English (en)
Inventor
Sandro Bocci
Bruno Angilella
Massimo Gallorini
Original Assignee
G S R L Ab
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 G S R L Ab filed Critical G S R L Ab
Priority to ITFI930196A priority Critical patent/IT1262530B/it
Publication of ITFI930196A0 publication Critical patent/ITFI930196A0/it
Priority to US08/317,920 priority patent/US5552841A/en
Publication of ITFI930196A1 publication Critical patent/ITFI930196A1/it
Application granted granted Critical
Publication of IT1262530B publication Critical patent/IT1262530B/it

Links

Classifications

    • 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
    • G02F1/13318—Circuits comprising a photodetector

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Eyeglasses (AREA)

Abstract

Lo strumento ottico comprende almeno una lente (5) e mezzi di applicazione (9) per applicare lo strumento ottico davanti all'occhio dell'utilizzatore o ad un dispositivo ottico. La lente è costituita almeno in parte da un dispositivo a cristalli liquidi (LCD); sono previsti mezzi alimentatori a tensione regolabile (11), detta tensione per controllare la trasparenza della lente in funzione di detto irraggiamento.(Fig. 2).
ITFI930196A 1993-10-06 1993-10-06 Strumento ottico a forma di occhiale, oculare, monocolo o simile con lenti a cristalli liquidi. IT1262530B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITFI930196A IT1262530B (it) 1993-10-06 1993-10-06 Strumento ottico a forma di occhiale, oculare, monocolo o simile con lenti a cristalli liquidi.
US08/317,920 US5552841A (en) 1993-10-06 1994-10-04 Liquid crystal eyeglasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI930196A IT1262530B (it) 1993-10-06 1993-10-06 Strumento ottico a forma di occhiale, oculare, monocolo o simile con lenti a cristalli liquidi.

Publications (3)

Publication Number Publication Date
ITFI930196A0 ITFI930196A0 (it) 1993-10-06
ITFI930196A1 ITFI930196A1 (it) 1995-04-06
IT1262530B true IT1262530B (it) 1996-07-02

Family

ID=11350623

Family Applications (1)

Application Number Title Priority Date Filing Date
ITFI930196A IT1262530B (it) 1993-10-06 1993-10-06 Strumento ottico a forma di occhiale, oculare, monocolo o simile con lenti a cristalli liquidi.

Country Status (2)

Country Link
US (1) US5552841A (it)
IT (1) IT1262530B (it)

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Also Published As

Publication number Publication date
ITFI930196A1 (it) 1995-04-06
ITFI930196A0 (it) 1993-10-06
US5552841A (en) 1996-09-03

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19981029