GB2362474A

GB2362474A - Spectacles with battery powered frame heater

Info

Publication number: GB2362474A
Application number: GB0011650A
Authority: GB
Inventors: Jason Mark Tyrrell
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-16
Filing date: 2000-05-16
Publication date: 2001-11-21
Also published as: GB0011650D0

Abstract

A pair of glasses has battery 15 located in the arm 17 of the glasses frame 10. A wire 11 runs from the positive of the battery through the frame of the glasses and back to the negative of the battery .When the battery is operated it releases the electric current through the wire, causing the wire to heat up. Operation of the battery can be controlled by the use of ON/OFF switch 13 or a heat sensor or humidity sensor located in the frame. The heated wire warms the frame 10 and lenses 16 of the glasses thus keeping the temperature of the frame and lenses relatively constant. This stops the lenses from being covered in condensation. The battery can be accessed and replaced by sliding the cover 14 off the arm of the frame.

Description

2362474 1 GLASSES FRAME The invention relates to a Glasses Lens De Mister

The invention relates to a pair of glasses of the type which are commonly used to protect the eyes from the sun or alternatively to enhance the vision of the person wearing them.

Glasses are well-known, but a common problem with glasses is caused when there is a sudden change in temperature. When you go from a cold atmosphere into a warmer atmosphere, glasses often mist up due to condensation forming on the lenses; this is especially bad around the sides of the lenses where the frames of the glasses is coldest. Metal frames tend to cause the greatest variation in temperature, therefore creating more condensation on the lenses.

An object of this invention is to provide a pair of glasses, which has a heated frame in order to prevent condensation on the lenses when room temperatures change.

The invention involves an electric current running through a piece of wire, which is inserted in the rim of the frame of the glasses. The current flows from a battery, which is located in the arm of the glasses. The electric current heats the frame of the glasses and warms the lenses, therefore retaining the lenses at a similar temperature. This will prevent the condensation forming on the glasses when the room temperature changes.

A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: - FIGURE 1 Shows in perspective, the glasses with the heated frame created by the electric current.

FIGURE 2 Illustrates the position of the wire in the frame, the position of the battery in the frame and the removable battery case.

FIGURE 3 Shows the electric circuit running from the battery, through the frame and back to the battery.

1 As shown in figure 1 and 2 the glasses comprise of a frame 10, which have lenses 16. There is a wire 11 running from the battery 15 through the rim of the frame and returning to the battery. Separate batteries, one on each arm 17 of the glasses are the source of the electric current, which runs through the wires running around each lens within the frame.

The battery 15, is accessed by a removable cover 14. The battery 15 will produce the electric current, which will run through the wire 11 in the frame of the glasses. The current will run from the batteries positive, through the wire, which is located in the frame before returning to the batteries negative. The circuit Figure 3 will create an electric current in the wire which will warm up the wire, the glasses frame and lenses, therefore retaining the glasses at a constant heat.

The battery 15 is operated by an ON 1 OFF switch 13, which can be turned on when there are extreme variations in the room temperature. Alternatively the battery can be operated by a heat sensor or a humidity sensor, located in the frame 10.

Ref:- Inv D/1 2

Claims

1. A pair of glasses comprising of a frame, with a battery located in the frame, a wire running from the battery through the rim of the frame of the glasses and back to the battery. The electric current runs from the battery, through the wire and back to the battery, which will heat the wire, the frame and the lenses.

2. A pair of glasses as claimed in claim 1 wherein the wire runs from the battery, through the hinge of the arms, through the frame and returning to the battery.

3. A pair of glasses as claimed in claim 1 or Claim 2 wherein the battery is located in the arm of the glasses frame and is accessed by a cover which slides off the frame.

4. A pair of glasses as claimed in Claim 1 or Claim 2 or Claim 3 wherein the guide means are provided on the arm of the glasses frame to control the flow of electric current by means of an ON / OFF switch, a heat sensor or a humidity sensor.

5. A pair of glasses substantially as described herein with reference to Figures 1-3 of the accompanying drawing.

Ref:- Inv D/I 3