BR7309247D0 - Anteparo ou filtro otico aperfeicoado, e processo para sua producao - Google Patents
Anteparo ou filtro otico aperfeicoado, e processo para sua producaoInfo
- Publication number
- BR7309247D0 BR7309247D0 BR9247/73A BR924773A BR7309247D0 BR 7309247 D0 BR7309247 D0 BR 7309247D0 BR 9247/73 A BR9247/73 A BR 9247/73A BR 924773 A BR924773 A BR 924773A BR 7309247 D0 BR7309247 D0 BR 7309247D0
- Authority
- BR
- Brazil
- Prior art keywords
- filter
- production
- optical forward
- perfected
- perfected optical
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
- C08K5/3417—Five-membered rings condensed with carbocyclic rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00634—Production of filters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/22—Absorbing filters
- G02B5/23—Photochromic filters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C1/00—Photosensitive materials
- G03C1/685—Compositions containing spiro-condensed pyran compounds or derivatives thereof, as photosensitive substances
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Optical Filters (AREA)
- Eyeglasses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31118872A | 1972-12-01 | 1972-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR7309247D0 true BR7309247D0 (pt) | 1974-08-29 |
Family
ID=23205794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9247/73A BR7309247D0 (pt) | 1972-12-01 | 1973-11-26 | Anteparo ou filtro otico aperfeicoado, e processo para sua producao |
Country Status (11)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5393246U (enrdf_load_stackoverflow) * | 1976-12-28 | 1978-07-29 | ||
| FR2415318A1 (fr) * | 1978-01-18 | 1979-08-17 | Essilor Int | Procede pour l'integration d'une substance photochromique a un substrat de base translucide en matiere organique, et substrat de base transparent |
| JPS5582623U (enrdf_load_stackoverflow) * | 1978-11-01 | 1980-06-07 | ||
| US4286957A (en) | 1979-01-10 | 1981-09-01 | Essilor International "Cie Generale D'optique" | Process of integrating a photochromic substance into an ophthalmic lens and a photochromic lens of organic material |
| US4245991A (en) | 1979-12-12 | 1981-01-20 | American Hoechst Corporation | Dip dyeing of plastic articles and the dye bath composition thereof |
| US4289497A (en) | 1980-09-02 | 1981-09-15 | American Optical Corporation | Gradient photochromic lens and method selectively reducing photochromic activity |
| US4931220A (en) * | 1987-11-24 | 1990-06-05 | Ppg Industries, Inc. | Organic photochromic pigment particulates |
-
1973
- 1973-09-12 IL IL43211A patent/IL43211A0/xx unknown
- 1973-09-15 DE DE19732347018 patent/DE2347018A1/de active Pending
- 1973-09-20 AR AR250193A patent/AR198117A1/es active
- 1973-09-27 GB GB4529973A patent/GB1418089A/en not_active Expired
- 1973-10-12 AU AU61333/73A patent/AU6133373A/en not_active Expired
- 1973-10-16 IT IT53158/73A patent/IT997765B/it active
- 1973-10-23 AT AT897573A patent/ATA897573A/de not_active Application Discontinuation
- 1973-11-26 BR BR9247/73A patent/BR7309247D0/pt unknown
- 1973-11-29 FR FR7343536A patent/FR2211666A1/fr not_active Withdrawn
- 1973-11-30 JP JP48133642A patent/JPS4989551A/ja active Pending
- 1973-11-30 NL NL7316400A patent/NL7316400A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1418089A (en) | 1975-12-17 |
| AR198117A1 (es) | 1974-05-31 |
| DE2347018A1 (de) | 1974-06-06 |
| IL43211A0 (en) | 1973-11-28 |
| ATA897573A (de) | 1976-07-15 |
| IT997765B (it) | 1975-12-30 |
| NL7316400A (enrdf_load_stackoverflow) | 1974-06-05 |
| FR2211666A1 (enrdf_load_stackoverflow) | 1974-07-19 |
| AU6133373A (en) | 1975-04-17 |
| JPS4989551A (enrdf_load_stackoverflow) | 1974-08-27 |
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