BS 3521-1:1991
Current
The latest, up-to-date edition.
Terms relating to ophthalmic lenses and spectacle frames Glossary of terms relating to ophthalmic lenses
Hardcopy , PDF
English
30-09-1991
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Committees responsible
Foreword
Glossary
Section
1 Basic and general terms
2 Types of surfaces
3 General classes of lenses
4 Focal properties
5 Prismatic properties
6 Spherical lenses
7 Astigmatic lenses
8 Image defects and best-form lenses
9 Lenticular lenses
10 Bifocal, multifocal and progressive power lenses
11 Tinted and coated lenses
12 Protective lenses
13 Magnifying devices
14 Miscellaneous lenses and spectacles
15 Trial case accessories
16 Manufacturing processes
17 Defects
18 Verification
19 Miscellaneous terms
Figures
1 Boxed lens size, lens shape and shape difference
2 Tyre formation
3 Barrel formation
4 Capstan formation
5 Oblique astigmatism
6 Bifocal lens: segment circle
7 Segment dimensions
8 Bifocal lens: segment inset
Index
Defines terms used to describe lenses, their ophthalmic properties and defects, and the manufacturing processes.
| Committee |
CH/172
|
| DevelopmentNote |
Supersedes 89/50063 DC and BS 3521-1&2(1962) (07/2005) Reviewed and confirmed by BSI, January 2013. (12/2012)
|
| DocumentType |
Standard
|
| Pages |
48
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| SupersededBy | |
| Supersedes |
| 04/100506 DC : DRAFT JAN 2004 | BS 2738-3 - SPECTACLE LENSES - PART 3: SPECIFICATION FOR THE PRESENTATION OF PRESCRIPTIONS AND PRESCRIPTION ORDERS FOR OPHTHALMIC LENSES |
| BS 7522-1:1992 | Low vision aids Specification for hand and stand magnifiers, including magnifiers with an integral source of illumination |
| BS 7522-2:1993 | Low vision aids Specification for spectacle magnifiers and similar devices |
| BS 2738-3(2004) : 2004 | SPECTACLE LENSES - PART 3: SPECIFICATION FOR THE PRESENTATION OF PRESCRIPTIONS AND PRESCRIPTION ORDERS FOR OPTHALMIC LENSES |
| BS 4274-1:2003 | Visual acuity test types Test charts for clinical determination of distance visual acuity. Specification |
| BS 7394-2:2007 | Complete spectacles Specification for prescription spectacles |
| BS 7394-1:1996 | Complete spectacles Specification for ready-to-wear near-vision spectacles |
| BS 2724:1987 | Specification for sun glare eye protectors for general use |
| 07/30082138 DC : DRAFT FEB 2007 | BS 7394-2 - COMPLETE SPECTACLES - PART 2: SPECIFICATION FOR PRESCRIPTION SPECTACLES |
| BS 7394-2:1994 | Complete spectacles Specification for prescription spectacles |
| BS 2738-1:1989 | Spectacle lenses Specification for tolerances on optical properties of mounted spectacle lenses |
| BS 3521-2:1991+A1:1996 | Terms relating to ophthalmic lenses and spectacle frames Glossary of terms relating to spectacle frames |
| BS 2738-3:1991 | Spectacle lenses Specification for the presentation of prescriptions and prescription orders for ophthalmic lenses |
| BS 4274(1968) : AMD 9200 | SPECIFICATION FOR TEST CHARTS FOR DETERMINING DISTANCE VISUAL ACUITY |
| BS 3062:1985 | Specification for ophthalmic lens materials |
| BS 3521-2:1991+A1:1996 | Terms relating to ophthalmic lenses and spectacle frames Glossary of terms relating to spectacle frames |
| BS 3199:1972 | Method for measurement of spectacles including a glossary of terms |
| BS 3668:1963 | Specification for red and green filters used in ophthalmic dichromatic and dissociation tests |
| BS 4110:1979 | Specification for eye-protectors for vehicle users |
| ISO 4007:2012 | Personal protective equipment Eye and face protection Vocabulary |
| BS 6625-2(1992) : AMD 9446 | SPECTACLE FRAMES - SPECIFICATION FOR MARKING |
| BS 7394-1:1991 | Complete spectacles Specification for ready-to-wear near-vision spectacles |
| BS 7394-2:1994 | Complete spectacles Specification for prescription spectacles |
| BS 3172:1987 | Specification for screw threads for spectacle frames |
| BS 6903(1987) : 1987 AMD 9444 | SPECIFICATIONS FOR GRADUATED DIAL SCALES FOR OPHTHALMIC INSTRUMENTS |
| BS 2738:1985 | Specification for tolerances on optical properties of mounted spectacle lenses |
| BS 3162:1959 | Specification for ophthalmic trial case lenses |
| BS 6625-1:1985 | Spectacle frames. Specification for general requirements |
| BS 7017:1988 | Specification for reference wavelengths for optics and optical instruments |
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