GB2225646A - Framed lenses for use in a protective helmet - Google Patents
Framed lenses for use in a protective helmet Download PDFInfo
- Publication number
- GB2225646A GB2225646A GB8925863A GB8925863A GB2225646A GB 2225646 A GB2225646 A GB 2225646A GB 8925863 A GB8925863 A GB 8925863A GB 8925863 A GB8925863 A GB 8925863A GB 2225646 A GB2225646 A GB 2225646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frame
- lenses
- optical
- aid
- helmet
- 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.)
- Withdrawn
Links
- 230000001681 protective effect Effects 0.000 title claims description 3
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 230000000063 preceeding effect Effects 0.000 claims 1
- 230000003466 anti-cipated effect Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000005755 formation reaction Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 2
- MOVRNJGDXREIBM-UHFFFAOYSA-N aid-1 Chemical compound O=C1NC(=O)C(C)=CN1C1OC(COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)CO)C(O)C1 MOVRNJGDXREIBM-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eyeglasses (AREA)
Abstract
An optical aid 12 comprises a frame 2 formed preferably from a pliable plastics material. Formations 3 at the top and bottom of the frame 2 form grooves 4 for receiving lenses 5. Stop members 6 and 7 at either end of the frame 2 retain the lenses 5 in position. A selection of different lens powers are provided. In use each welder is provided with a frame 2 fitted with a set of standard lenses chosen from the range in accordance with the age and his anticipated working distance. The welder can then secure the frame 2 and lenses 5 in his helmet. <IMAGE>
Description
"Optical Aid"
This invention relates to an optical aid and in particular to such an aid for use by welders.
A large proportion of the population as they become older become presbyopic meaning that they either require no glasses for distance vision but need glasses for near work or require a different prescription for near work from that being worn for distance vision. Opticians can at present supply bifocal prescriptions for such people but the use of bifocals or the need to change prescription is very inconvenient for welders using the standard form of welding helmet due to the need to look downwardly for close work.
Due to the limited field of view through the visor of most welding helmets this can be an extreme inconvenience.
An object of the present invention is to obviate or mitigate the aforementioned disadvantages.
An earlier proposal is in the form of an optical device which comprises a pair of spectacle frames adapted for fitment in a welding helment in alignment with a visor to assist a users vision. Such an arrangement provides means for overcoming vision problems for users but nevertheless suffers from a number of other difficulties. In particular the means of attachment of the frames to the helmet may involve small difficult to manipulate and easily broken catches.
According to the present invention there is provided an optical aid comprising a frame, a generally rectangular optical lens in the frame, and means on the frame for securing the frame to a protective helmet adjacent to a visor portion of the helmet such that in use the lens is aligned with a users line of sight through the visor.
Preferably the frame is a generally rectangular member having a slot for receiving the lens.
Preferably also a pair of lenses are provided for fitment to the frame.
Most peferably a range of alternative lenses may be provided having different optical characteristics for use by users of different optical abilities.
Embodiments of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Fig. 1 is a front view of an optical aid of the
invention;
Fig. 2 is a side view of the optical aid of Fig 1;
and
Fig. 3 is a sectional side view corresponding to Fig. 1
and showing the device in a welder's helmet;
Referring to the drawing an optical aid 1 in accordance with the present invention comprises a frame 2 formed preferably from a pliable plastics material. Formations 3 at the top and bottom of the frame 2 form grooves 4 for receiving lenses 5. Stop members 6 and 7 at either end of the frame 2 retain the lenses 5 in position. For use in conjunction with a conventional welders helmet typical dimensions might be 105 mm by 50 mm for the frame and 50 mm by 45 mm for each of the lenses.
A selection of different lens powers may be provided which have been calculated to suit different age groups and optical abilities of welders and different working distances.
In use each welder is provided with a frame 2 fitted with a set of standard lenses chosen from the range in accordance with the age and his anticipated working distance. The welder can then secure the frame 2 and lenses 5 in his helmet in the position shown in Fig. 2 adjacent the visor 9 so as to improve his close vision during welding.
Modifications and improvements may be made without departing from the scope of the invention.
Claims (5)
1. An optical aid comprising a frame, a generally rectangular optical lens in the frame, and means on the frame for securing the frame to a protective helmet adjacent to a visor portion of the helmet such that in use the lens is aligned with a users line of sight through the visor.
2. An optical aid as claimed in Claim 1, wherein the frame is a generally rectangular member having a slot for receiving the lens.
3. An optical aid as claimed in Claim 1 or 2, wherein a pair of lenses are provided for fitment to the frame.
4. An optical aid claimed in any one of the preceeding
Claims, wherein a range of alternative lenses may be provided having different optical characteristics for use by users of different optical abilities.
5. An optical aid substantially as hereinbefore described with reference to and as shown in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB888828111A GB8828111D0 (en) | 1988-12-01 | 1988-12-01 | Optical aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8925863D0 GB8925863D0 (en) | 1990-01-04 |
| GB2225646A true GB2225646A (en) | 1990-06-06 |
Family
ID=10647818
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB888828111A Pending GB8828111D0 (en) | 1988-12-01 | 1988-12-01 | Optical aid |
| GB8925863A Withdrawn GB2225646A (en) | 1988-12-01 | 1989-11-15 | Framed lenses for use in a protective helmet |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB888828111A Pending GB8828111D0 (en) | 1988-12-01 | 1988-12-01 | Optical aid |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8828111D0 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997031597A1 (en) * | 1996-02-27 | 1997-09-04 | Lansec Gmbh | Electro-optical protective welding helmet cassette equipped with internally or externally fitted tinted protective panels |
| WO1999008637A1 (en) * | 1997-08-12 | 1999-02-25 | Comweld Group Pty. Ltd. | A light shielding helmet system |
| US6401244B1 (en) | 2001-03-13 | 2002-06-11 | Sellstrom Manufacturing Co. | Welding helmet and face plate |
| US6973672B2 (en) * | 2003-03-20 | 2005-12-13 | Otos Tech Co., Ltd. | Welding helmet removable cartridge |
| US10821026B2 (en) | 2016-04-27 | 2020-11-03 | 3M Innovative Properties Company | Welding protector with magnifying cover |
| US11129748B2 (en) | 2016-05-04 | 2021-09-28 | 3M Innovative Properties Company | Curved eye protection shield for welding protection |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3440661A (en) * | 1967-06-26 | 1969-04-29 | Welsh Mfg Co | Cover unit for the window opening of a helmet or goggle |
| US4354279A (en) * | 1980-01-14 | 1982-10-19 | The Fiber-Metal Products Company | Welding mask corona barrier |
| US4373212A (en) * | 1980-11-12 | 1983-02-15 | Century Mfg. Co. | Light blocking lens for welder helmet |
| DE3425977A1 (en) * | 1984-05-10 | 1986-01-16 | Elio 6000 Frankfurt Sassi | Welding goggles |
| GB2167645A (en) * | 1984-11-16 | 1986-06-04 | Raymond C Falkiner | Dual vision welding helmet |
| US4648394A (en) * | 1985-06-12 | 1987-03-10 | Mine Safety Appliances Company | Facemask for abrasive service |
| GB2202644A (en) * | 1987-03-02 | 1988-09-28 | Fibre Metal Prod Co | Welding mask eyepiece assembly |
-
1988
- 1988-12-01 GB GB888828111A patent/GB8828111D0/en active Pending
-
1989
- 1989-11-15 GB GB8925863A patent/GB2225646A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3440661A (en) * | 1967-06-26 | 1969-04-29 | Welsh Mfg Co | Cover unit for the window opening of a helmet or goggle |
| US4354279A (en) * | 1980-01-14 | 1982-10-19 | The Fiber-Metal Products Company | Welding mask corona barrier |
| US4373212A (en) * | 1980-11-12 | 1983-02-15 | Century Mfg. Co. | Light blocking lens for welder helmet |
| DE3425977A1 (en) * | 1984-05-10 | 1986-01-16 | Elio 6000 Frankfurt Sassi | Welding goggles |
| GB2167645A (en) * | 1984-11-16 | 1986-06-04 | Raymond C Falkiner | Dual vision welding helmet |
| US4648394A (en) * | 1985-06-12 | 1987-03-10 | Mine Safety Appliances Company | Facemask for abrasive service |
| GB2202644A (en) * | 1987-03-02 | 1988-09-28 | Fibre Metal Prod Co | Welding mask eyepiece assembly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997031597A1 (en) * | 1996-02-27 | 1997-09-04 | Lansec Gmbh | Electro-optical protective welding helmet cassette equipped with internally or externally fitted tinted protective panels |
| WO1999008637A1 (en) * | 1997-08-12 | 1999-02-25 | Comweld Group Pty. Ltd. | A light shielding helmet system |
| US6185739B1 (en) | 1997-08-12 | 2001-02-13 | Comweld Group Pty. Ltd. | Light shielding helmet system |
| US6401244B1 (en) | 2001-03-13 | 2002-06-11 | Sellstrom Manufacturing Co. | Welding helmet and face plate |
| US6973672B2 (en) * | 2003-03-20 | 2005-12-13 | Otos Tech Co., Ltd. | Welding helmet removable cartridge |
| US10821026B2 (en) | 2016-04-27 | 2020-11-03 | 3M Innovative Properties Company | Welding protector with magnifying cover |
| US11129748B2 (en) | 2016-05-04 | 2021-09-28 | 3M Innovative Properties Company | Curved eye protection shield for welding protection |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8828111D0 (en) | 1989-01-05 |
| GB8925863D0 (en) | 1990-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |