JPH0373128U

JPH0373128U -

Info

Publication number: JPH0373128U
Application number: JP13526489U
Authority: JP
Priority date: 1989-11-21
Filing date: 1989-11-21
Publication date: 1991-07-23

Description

[Brief explanation of drawings]

第１図はこの考案の防曇装置付きゴーグルの一
例を示す正面図、第２図は第１図−部分の断
面図、第３図は第１図−部分における面状発
熱体層付き複合フイルムのみを示す断面図、第４
図は従来の防曇装置付きゴーグルを示す正面図、
第５図は上記第４図の−部分の断面図である
。３……プラスチツク製レンズ（内側レンズ）、
４……面状発熱体層、５……透明支持体、６，６
……電極層、７……透明粘着剤ないし接着剤層。 Fig. 1 is a front view showing an example of goggles with an anti-fog device of this invention, Fig. 2 is a cross-sectional view of the part shown in Fig. 1, and Fig. 3 is a composite film with a planar heating element layer in the part shown in Fig. 1. Sectional view showing only the fourth
The figure is a front view of a conventional goggle with an anti-fog device.
FIG. 5 is a cross-sectional view of the - portion of FIG. 4 above. 3...Plastic lens (inner lens),
4... Planar heating element layer, 5... Transparent support, 6, 6
...Electrode layer, 7...Transparent adhesive or adhesive layer.

Claims

[Scope of Claim for Utility Model Registration] (1) In goggles with an anti-fogging device comprising a transparent sheet heating layer on one side of a plastic lens, the surface resistance value of the sheet heating layer changes depending on the location. The current density between the pair of electrode layers provided at both ends of this layer in the vertical direction is made to be approximately uniform over the entire area of the lens due to the change in the surface resistance value described above. Goggles with an anti-fog device featuring the following. (2) On one side of a transparent support made of a plastic film shaped to correspond to a plastic lens, there is a transparent planar heating element layer and a pair of electrode layers located on both ends of this layer in the vertical direction. and are formed so that the current density between both electrode layers is substantially uniform over the entire area of the film, and the surface resistance value of the sheet heating element layer varies depending on the location, and
2. The goggles with an anti-fog device according to claim 1, wherein the anti-fogging device is attached to one surface of a plastic lens via a transparent adhesive or an adhesive layer formed on the opposite surface of the support.