GB2203826A - Light lenses - Google Patents

Light lenses Download PDF

Info

Publication number
GB2203826A
GB2203826A GB08709416A GB8709416A GB2203826A GB 2203826 A GB2203826 A GB 2203826A GB 08709416 A GB08709416 A GB 08709416A GB 8709416 A GB8709416 A GB 8709416A GB 2203826 A GB2203826 A GB 2203826A
Authority
GB
United Kingdom
Prior art keywords
lens
light lens
light
layer
outer layer
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Withdrawn
Application number
GB08709416A
Other versions
GB8709416D0 (en
Inventor
Edward Hugh Robinson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08709416A priority Critical patent/GB2203826A/en
Publication of GB8709416D0 publication Critical patent/GB8709416D0/en
Publication of GB2203826A publication Critical patent/GB2203826A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/28—Cover glass

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

A light lens, e.g. of a vehicle, is provided with a protective outer layer of transparent material, e.g. plastics. The layer may be provided with an adhesive coating or bonded to the lens by heat treatment, or a separate adhesive may be applied. The layer may be up to 4 mm thick to resist impact damage caused by stones. The layer also helps to hold the lens together when damaged.

Description

Light Lenses The present invention relates to a light lens, particularly but not exclusively for a vehicle.
h Vehicle light lenses, in particular front light lenses of lorries, are frequently damaged by small stones thrown up from the surface of the road. These may cause tiny holes in the lens through which water can penetrate into the light to cause considerable damage. In extreme cases the lens may shatter, particularly in a collision, completely preventing the light from functioning and also causing a danger from broken glass.
Similarly, rear light lenses, usually made from plastics, may be damaged or destroyed, for example during careless reverse movement of the vehicle.
An object of the present invention is to provide a light lens with resistance to damage by stones, and will not necessarily cause a danger on breakage.
The invention provides a light lens as claimed in claim 1.
The protective layer is preferably scratch resistant.
It may be made from any suitable plastics material and attached to the light lens by any suitable process.
For example, the protective layer may be in the form of a plastics sheet to which adhesive is already applied and which has a peel-off backing. The plastics sheet may be pre-shaped to the particular light lens or may be shaped as desired, e.g. by cutting with scissors or a sharp knife. This would be particularly suitable if the sheet were sold with instructions in D.I.Y. form.
Alternatively, the protective layer may be applied using a separate adhesive or bonding agent.
The protective layer may be applied to the lens using heat treatment, e.g. as a final step during manufacture of the lens. Such a process would be particularly suitable for highly curved lenses, e.g. conical or hemi-spherical rear lenses. Alternatively, the protective layer could be pre-shaped, e.g. conically or hemi-spherically to match the corresponding lens.
The protective layer may be of any suitable thickness to restrict penetration by stones; a thickness of up to 4 mm is envisaged.
The protective layer may be coloured to suit various applications, e.g. yellow for Continental travel.
Not only will such a light lens be resistant to damage, but if it is damaged, the protective layer will hold the broken pieces together and allow further use of the lens for a limited period. If the lens is completely broken, the protective layer will tend to hold the lens pieces together so as to reduce the danger of cuts.
Although the invention has been described only with reference to lorries, it may be used for any other vehicle, e.g. cars and aircraft, or even on plant and machinery.

Claims (7)

Claims:
1. A light lens having a protective outer layer of transparent material.
2. A light lens as claimed in claim 1, wherein the outer layer is scratch resistant.
3. A light lens as claimed in claim 1 or 2, wherein the outer layer is formed of plastics material.
4. A light lens as claimed in claim 1, 2 or 3, wherein the outer layer is attached to the light lens by means of adhesive.
5. A light lens as claimed in any one of claims 1 to 4, wherein the outer layer is attached to the light lens by means of heat treatment.
6. A light lens as claimed in any one of the preceding claims, wherein the outer layer has a thickness of up to 4 mm.
7. A light lens as claimed in any one of the preceding claims, wherein the protective layer is coloured.
GB08709416A 1987-04-21 1987-04-21 Light lenses Withdrawn GB2203826A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08709416A GB2203826A (en) 1987-04-21 1987-04-21 Light lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08709416A GB2203826A (en) 1987-04-21 1987-04-21 Light lenses

Publications (2)

Publication Number Publication Date
GB8709416D0 GB8709416D0 (en) 1987-05-28
GB2203826A true GB2203826A (en) 1988-10-26

Family

ID=10616095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08709416A Withdrawn GB2203826A (en) 1987-04-21 1987-04-21 Light lenses

Country Status (1)

Country Link
GB (1) GB2203826A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261498A (en) * 1991-11-20 1993-05-19 Adrian Maeers Vehicle lamp cover

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB539135A (en) * 1939-08-25 1941-08-28 British Thomson Houston Co Ltd Improvements in non-dazzle headlamps
US3801361A (en) * 1971-09-17 1974-04-02 Owens Illinois Inc Coated glass surface
GB1368221A (en) * 1971-06-28 1974-09-25 Polaroid Corp Polarisers
EP0001658A1 (en) * 1977-10-13 1979-05-02 Chemische Werke Hüls Ag Method of coating glass surfaces
EP0001657A1 (en) * 1977-10-13 1979-05-02 Chemische Werke Hüls Ag Method of coating glass surfaces
GB2019545A (en) * 1978-04-19 1979-10-31 Comind Spa An Optical Unit, More Particularly a Headlamp or Other Vehicle Lamp
EP0025994A2 (en) * 1979-09-21 1981-04-01 Chemische Werke Hüls Ag Process for coating glass surfaces
EP0028171A1 (en) * 1979-10-05 1981-05-06 Saint-Gobain Emballage Process for covering hollow bodies such as glass bottles with a porous flexible sheath and hollow bodies sheathed by this process

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB539135A (en) * 1939-08-25 1941-08-28 British Thomson Houston Co Ltd Improvements in non-dazzle headlamps
GB1368221A (en) * 1971-06-28 1974-09-25 Polaroid Corp Polarisers
US3801361A (en) * 1971-09-17 1974-04-02 Owens Illinois Inc Coated glass surface
EP0001658A1 (en) * 1977-10-13 1979-05-02 Chemische Werke Hüls Ag Method of coating glass surfaces
EP0001657A1 (en) * 1977-10-13 1979-05-02 Chemische Werke Hüls Ag Method of coating glass surfaces
GB2019545A (en) * 1978-04-19 1979-10-31 Comind Spa An Optical Unit, More Particularly a Headlamp or Other Vehicle Lamp
EP0025994A2 (en) * 1979-09-21 1981-04-01 Chemische Werke Hüls Ag Process for coating glass surfaces
EP0028171A1 (en) * 1979-10-05 1981-05-06 Saint-Gobain Emballage Process for covering hollow bodies such as glass bottles with a porous flexible sheath and hollow bodies sheathed by this process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261498A (en) * 1991-11-20 1993-05-19 Adrian Maeers Vehicle lamp cover
GB2261498B (en) * 1991-11-20 1994-11-09 Adrian Maeers Vehicle lamp cover

Also Published As

Publication number Publication date
GB8709416D0 (en) 1987-05-28

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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)