GB614255A - Improvements in or relating to optical elements - Google Patents
Improvements in or relating to optical elementsInfo
- Publication number
- GB614255A GB614255A GB19382/46A GB1938246A GB614255A GB 614255 A GB614255 A GB 614255A GB 19382/46 A GB19382/46 A GB 19382/46A GB 1938246 A GB1938246 A GB 1938246A GB 614255 A GB614255 A GB 614255A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- optical elements
- agar
- lenses
- dried
- 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
Links
- 230000003287 optical effect Effects 0.000 title abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229920001817 Agar Polymers 0.000 abstract 1
- 108010010803 Gelatin Proteins 0.000 abstract 1
- 241000206672 Gelidium Species 0.000 abstract 1
- 235000010419 agar Nutrition 0.000 abstract 1
- 230000004075 alteration Effects 0.000 abstract 1
- 229920000159 gelatin Polymers 0.000 abstract 1
- 239000008273 gelatin Substances 0.000 abstract 1
- 235000019322 gelatine Nutrition 0.000 abstract 1
- 235000011852 gelatine desserts Nutrition 0.000 abstract 1
- 235000011187 glycerol Nutrition 0.000 abstract 1
- 229920001277 pectin Polymers 0.000 abstract 1
- 239000001814 pectin Substances 0.000 abstract 1
- 235000010987 pectin Nutrition 0.000 abstract 1
- 150000004760 silicates Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
- G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
-
- 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
- B29D11/00009—Production of simple or compound lenses
-
- 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
- B29D11/00009—Production of simple or compound lenses
- B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
- C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
- C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2005/00—Use of polysaccharides or derivatives as moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dermatology (AREA)
- Optical Elements Other Than Lenses (AREA)
- Eyeglasses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB867941A GB550644A (en) | 1941-07-09 | 1941-07-09 | Improvements in or relating to optical elements |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL614255X | 1939-10-10 | ||
| GB867941A GB550644A (en) | 1941-07-09 | 1941-07-09 | Improvements in or relating to optical elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB614255A true GB614255A (en) | 1948-12-13 |
Family
ID=26242340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19382/46A Expired GB614255A (en) | 1939-10-10 | 1946-06-28 | Improvements in or relating to optical elements |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB614255A (enrdf_load_stackoverflow) |
| NL (1) | NL57677C (enrdf_load_stackoverflow) |
-
0
- NL NL57677D patent/NL57677C/xx active
-
1946
- 1946-06-28 GB GB19382/46A patent/GB614255A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL57677C (enrdf_load_stackoverflow) |
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