WO2003089072A1 - Lunettes de natation - Google Patents

Lunettes de natation Download PDF

Info

Publication number
WO2003089072A1
WO2003089072A1 PCT/GB2003/001631 GB0301631W WO03089072A1 WO 2003089072 A1 WO2003089072 A1 WO 2003089072A1 GB 0301631 W GB0301631 W GB 0301631W WO 03089072 A1 WO03089072 A1 WO 03089072A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
swimming goggles
translucency
tint
region
Prior art date
Application number
PCT/GB2003/001631
Other languages
English (en)
Inventor
Zoe Dodge
Original Assignee
Speedo International Limited
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 Speedo International Limited filed Critical Speedo International Limited
Priority to AU2003216560A priority Critical patent/AU2003216560A1/en
Publication of WO2003089072A1 publication Critical patent/WO2003089072A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B33/00—Swimming equipment attachable to the head, e.g. swim caps or goggles
    • A63B33/002—Swimming goggles
    • A63B33/004—Swimming goggles comprising two separate lenses joined by a flexible bridge

Definitions

  • This invention has to do with swimming goggles and masks.
  • Preferred embodiments relate to conventional swimming goggles having two distinct eye portions linked by a flexible nose bridge.
  • the concept is also applicable with masks or goggles having a single face piece or window extending to cover both eyes, as will be apparent .
  • conventional swimming goggles have eyepieces designed to be pressed firmly against the skin of the face around the eyes to effect a seal.
  • the eyepiece is typically cup-shaped, with a forwardly-facing transparent flat lens or window mounted in a surrounding oblong frame having a rear sealing projection contoured to fit against the face.
  • the rear projection includes or carries a flexible sealing lip to enhance comfortable sealing, but this is not always present.
  • one simple form of goggles provides the lens and frame as a single moulded cup- shaped unit of transparent resin e.g. polycarbonate.
  • a tensionable retaining element such as a rubber or plastic (e.g. silicone) strap is connected to either side of the eyepieces to extend around the back of the head, preferably with a length adjustment, to press the goggles against the face.
  • the transparent lenses are usually colourless, but it is known for swimming goggles to have tinted lenses.
  • swimming goggles or a swimming mask having a transparent eyepiece including a lens portion, characterised in that different regions of the transparent eyepiece differ in translucency .
  • translucency decreases towards an edge of the transparent eyepiece, relative to the translucency at or towards an opposing edge.
  • the regions of differing translucency are transparent regions.
  • they are of the lens portion.
  • Regions of relatively reduced translucency are preferably provided by selective or graded tinting, darkening or reflectivity of those regions.
  • the translucent property relevant for present purposes is the transmissivity of visible light incident from the outside.
  • the inventor has realised that when swimming, special issues arise concerning the reduction of bright light and glare. Swimmers are peculiarly subject to strong lighting from above and weak light from below. Also peculiar to swimmers are their horizontal bodily orientation, and a repeated change in the orientation of the face relative to the light, particularly for front strokes, during the movement of the stroke and especially when breathing.
  • the transparent portion of the eyepiece has lower translucency at the outside edge than at an adjacent region, e.g. at the centre and/or at the inside edge. Additionally or alternatively the translucency is lower at an upper edge than at a region below that, e.g. at the centre and/or at the lower edge. Where the lower translucency is provided by tinted regions, the higher translucency regions may be less tinted or untinted. Thus, a lens portion may have a clear region and a tinted region. Note that the term tint is used here to encompass the use of partially- reflective treatments, unless the context indicates the contrary. Gradation of tint levels may be continuous or stepwise. For the visual comfort of the wearer it is preferred to grade the tint in more than one step, or continuously, thereby avoiding an apparent colour boundary in the field of view. Where the lenses are tinted towards the side edges
  • Lenses with graded tint are known as such. For example sunglasses with a heavier tint at the top have been done before.
  • US 5453100 describes one way of making lenses with a graded tint e.g. for skiing and snowboarding goggles, but there is no suggestion of the special utility now found for swimming in particular.
  • This new concept may be implemented in any kind of swimming goggles.
  • One preferred embodiment uses lenses with a graded tint fitted in discrete frames which may in themselves be conventional; translucent or non- translucent. However the concept can also be implemented in one-piece eyepieces. Selective tinting may if wished be applied in relation to the rearwardly-extending portions of these, as well as or instead of the lens portions . Examples of the inventions are now described in more detail with reference to the accompanying drawings, in which
  • Fig. 1 shows goggles adapted for use in the front crawl stroke
  • Fig. 2 shows a different adaptation for front crawl
  • Fig. 3 shows goggles adapted for use in breast stroke.
  • front and rear are used in relation to the face, meaning away from and towards the face respectively.
  • inside and outside are used laterally in relation to the nose, so that the "inside edge” of a lens is that edge region of the lens near to the nose or medial line of the face.
  • Fig. 1 shows goggles of a generally conventional layout, including a one-piece moulded plastic frame unit 1 including left and right frame portions 14 defining central openings for discrete lenses 2, a central flexible nose bridge 4, rearward extensions 15 to enclose a sealed space between the lens 2 and the wearers face, and integral flexible sealing lips 12 extending around the rear edge of the rearward extensions 15.
  • the outer parts 11 of the rearward extensions are prolonged rearwardly, at the sides of the face, and include anchors 13 for the ends of a length-adjustable rubber strap 3 which may take any conventional form, e.g. a double- looped strap with a sliding buckle.
  • the distinctive feature here is the lenses 2.
  • These may be of conventional material, e.g. uniform thickness layers of cellulose ester (acetate, propionate) or other suitable polymer.
  • Each lens 2 is tinted, e.g. with a conventional violet or other coloured tint, in such a way that the outer region 22 of the lens is more deeply tinted than the inner region 25 which is scarcely tinted.
  • the lenses are symmetrical top-to-bottom, to reduce alignment complications during assembly, and the left and right lenses 2, 2' are arranged symmetrically about the nose so that each has its most deeply tinted region towards the outside of the face.
  • Fig. 2 shows a variant with a simpler adaptation: an outer region (approximately half) of the area of the lens 23 is tinted (which may be a mirror tint, as mentioned) to a uniform degree, while an inner region 26 is entirely untinted.
  • Fig. 3 shows a further embodiment for use by breast stroke swimmers.
  • each lens has an upper region 24 more intensely tinted than a lower region 27.
  • the gradation of tinting is essentially continuous, but of course other modes of gradation can be used.
  • the swimmer lifts their head to breathe, light coming from above with greatest tendency to reach the eye directly, namely light coming through the upper part of the lens, is selectively reduced in intensity by the selective tinting so that the swimmer experiences less glare.
  • the other regions of the lens admit light relatively freely so that overall reduction in vision is minimised.
  • the lenses may be produced by any conventional process.
  • the lens to be mirror tinted is first ultrasonically cleaned.
  • a hard urethane coating is then applied to the lens surface and the coated lens cured.
  • the curing can be effected by heating the lens in a oven at about 100°C for a period of 8-12 hours.
  • the cured lenses are then masked to the appropriate angle for the desired graduated tinting.
  • the application of the mirror tinting is then carried out using a coating machine.
  • the coating machine typically comprises a vacuum chamber containing a metallic solution (e.g. sulphate, chromate) . On heating the metallic solution evaporates and is deposited onto the lens surface.
  • the application of the mirror tinting takes about 4-12 hours depending on the extent of tinting required. Once the mirror coating has been applied the masking may be removed.
  • the lenses may have a peripheral ring or part ring of tinting (e.g. right around the lens edge, or around the top and outside edge of the lens) bordering a less tinted or untinted central region.

Abstract

L'invention concerne des lunettes de natation comprenant des oculaires gauche et droit (1) portant des lentilles plates transparentes (2) qui sont teintées, par exemple, à l'aide d'une teinte réfléchissante afin de réduire leur translucidité à la lumière incidente. La teinte est progressive dans différentes zones de la lentille (2) pour s'adapter aux besoins spécifiques d'un nageur. Ainsi, des lunettes pour un nageur de nage libre sont plus teintées dans une zone extérieure (23) de la lentille qu'au niveau d'une zone intérieure (26) voisine du nez. Pour les nageurs de brasse, les lunettes sont plus teintées en haut qu'en bas de la lentille.
PCT/GB2003/001631 2002-04-15 2003-04-15 Lunettes de natation WO2003089072A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003216560A AU2003216560A1 (en) 2002-04-15 2003-04-15 Swimming goggles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0208622.1 2002-04-15
GBGB0208622.1A GB0208622D0 (en) 2002-04-15 2002-04-15 Swimming goggles

Publications (1)

Publication Number Publication Date
WO2003089072A1 true WO2003089072A1 (fr) 2003-10-30

Family

ID=9934866

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/001631 WO2003089072A1 (fr) 2002-04-15 2003-04-15 Lunettes de natation

Country Status (3)

Country Link
AU (1) AU2003216560A1 (fr)
GB (1) GB0208622D0 (fr)
WO (1) WO2003089072A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7900280B2 (en) 2006-05-18 2011-03-08 Speedo International Limited Goggles
CN110559620A (zh) * 2019-09-03 2019-12-13 东莞市仁通硅塑胶制品有限公司 潜水镜罩及其制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791722A (en) * 1972-01-12 1974-02-12 Minnesota Mining & Mfg Lenses
FR2195961A5 (fr) * 1972-08-11 1974-03-08 Beuchat Paul
US5453100A (en) 1994-06-14 1995-09-26 General Electric Company Method for color dyeing polycarbonate
US5975695A (en) * 1997-09-10 1999-11-02 Intercast Europe S.P.A. Optical element for use in eye-protecting devices
US6247811B1 (en) * 1999-03-08 2001-06-19 Xspex Llc Multi-purpose eyewear

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791722A (en) * 1972-01-12 1974-02-12 Minnesota Mining & Mfg Lenses
FR2195961A5 (fr) * 1972-08-11 1974-03-08 Beuchat Paul
US5453100A (en) 1994-06-14 1995-09-26 General Electric Company Method for color dyeing polycarbonate
US5975695A (en) * 1997-09-10 1999-11-02 Intercast Europe S.P.A. Optical element for use in eye-protecting devices
US6247811B1 (en) * 1999-03-08 2001-06-19 Xspex Llc Multi-purpose eyewear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7900280B2 (en) 2006-05-18 2011-03-08 Speedo International Limited Goggles
CN110559620A (zh) * 2019-09-03 2019-12-13 东莞市仁通硅塑胶制品有限公司 潜水镜罩及其制造方法
CN110559620B (zh) * 2019-09-03 2024-04-09 东莞市仁通泳潜装备科技有限公司 潜水镜罩及其制造方法

Also Published As

Publication number Publication date
AU2003216560A1 (en) 2003-11-03
GB0208622D0 (en) 2002-05-22

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