CN203376530U

CN203376530U - Photochromic polarized lens

Info

Publication number: CN203376530U
Application number: CN201320439581.XU
Authority: CN
Inventors: 陈宇翔
Original assignee: XIAMEN HONGTAI OPTICAL CO Ltd
Current assignee: XIAMEN HONGTAI OPTICAL CO Ltd
Priority date: 2013-07-23
Filing date: 2013-07-23
Publication date: 2014-01-01
Anticipated expiration: 2023-07-23

Abstract

The utility model discloses a photochromic polarized lens. A polarized sheet and a photochromic film are glued to the outer surface of a plastic film; the polarized sheet adopts the polarized sheet of which the light transmittance is 42-48%, and the polarized light efficiency is 70-95%. The photochromic polarized lens is simple in structure; the light transmittance can be reduced to 12-15% from 42-48%; the ratio of the light transmittance before and after a photochromic process is larger; the photochromic effect is more obvious.

Description

A kind of variable color polarized lenses

Technical field

The utility model relates to the technical field of glasses, special relevant with the structure of variable color polarized lenses.

Background technology

Color-changing lens, claim again by " sensitization eyeglass ", is to add electrochromic substance (chemical substances of silver halide etc.) on eyeglass, allow otherwise transparent colourless eyeglass, meet strong illumination, will become colored lens, do protection, so be to be suitable for indoor and outdoor to use simultaneously.

In prior art, color-changing lens be by immersion way eyeglass adhere to variable color liquid, thereby realize the combination of electrochromic substance and eyeglass.This immersion way makes the two sides of color-changing lens all adhere to electrochromic substance, adheres to the phenomenons such as inhomogeneous, easy appearance extension liquid, directly affects the color changeable effect of eyeglass.

Afterwards, have the dealer to adopt color-changing membrane and the bonding mode of sheet to make color-changing lens, color-changing membrane is even coating variable color liquid and making on substrate, and substrate adopts or akin material identical with sheet, and color-changing membrane can directly be buied to producer.This color-changing lens can reach the purpose of even variable color, and color changeable effect is better.

In order to increase the polarisation effect of eyeglass, the dealer also increases polaroid between color-changing membrane and sheet, realizes thus variable color and the polarisation double action of eyeglass.But, in prior art, polaroid adopts the PVA(polyvinyl alcohol (PVA) of transmittance 35%, deflecting efficacy 99%) polaroid, in manufacturing the eyeglass process, because temperature can be reduced to 30% by its transmittance, after adding color-changing membrane, transmittance is down to 12～15% from 28～30%, and before and after variable color, to obtain ratio very little for transmittance.

In view of this, the inventor is improved the structure of existing variable color polarized lenses, develops a kind of Novel color-changing polarized lenses, and this case produces thus.

The utility model content

The purpose of this utility model is to provide a kind of variable color polarized lenses, makes variable color front and back transmittance obtain ratio larger, and color changeable effect is more obvious.

To achieve these goals, the technical solution of the utility model is as follows:

A kind of variable color polarized lenses, at the bonding one deck polaroid of the outside surface of sheet and one deck color-changing membrane, polaroid adopts the polaroid of transmittance 42～48%, deflecting efficacy 70～95%.

Described polaroid adopts the polaroid of transmittance 42%, deflecting efficacy 95%.

Described polaroid adopts the polaroid of transmittance 45%, deflecting efficacy 93%.

Described polaroid adopts the polaroid of transmittance 48%, deflecting efficacy 70%.

Described sheet is PC sheet (polycarbonate), and color-changing membrane is at the TAC(Triafol T) evenly tint variable color liquid and make on sheet, polaroid is the PVA(polyvinyl alcohol (PVA)) polaroid.

After adopting such scheme, the utility model is simple in structure, the polaroid high by transmittance replaces the low polaroid of transmittance, in manufacture process, after the sheet ejection formation, the transmittance that combines the sheet of polaroid and color-changing membrane is down to 12～15% even lower by 42～48%, before and after variable color, to obtain ratio larger for transmittance, and color changeable effect is more obvious.

Below in conjunction with drawings and the specific embodiments, the utility model is described in further details.

The accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is structure enlarged drawing of the present utility model.

Label declaration

Sheet 1, color-changing membrane 2, substrate 21, photochromic layer 22, polaroid 3.

Embodiment

As depicted in figs. 1 and 2, be a kind of variable color polarized lenses that the utility model discloses, at the bonding one deck polaroid 3 of the outside surface of sheet 1 and one deck color-changing membrane 2.Sheet 1 specifically can be the PC sheet, and polaroid 3 adopts the PVA polaroid of transmittances 42～48%, deflecting efficacy 70～95%, and color-changing membrane 2 is evenly to tint variable color liquid (photochromic layer 22) and make on TAC sheet (substrate 21).When the utility model is used, transmittance can be down to 12～15% even lower transmittances by 42～48%, and before and after variable color, to obtain ratio larger for transmittance, and color changeable effect is more obvious.

Such as, polaroid 3 adopts the polaroid of transmittance 42%, deflecting efficacy 95%, or polaroid 3 adopts the polaroid of transmittance 45%, deflecting efficacy 93%, also or polaroid 3 adopt the polaroid of transmittances 48%, deflecting efficacy 70%, during use, transmittance all can be down to 12～15%, because of color-changing membrane identical, although the perspective rate difference before variable color, the perspective rate after variable color is also all identical.

These are only specific embodiment of the utility model, is not the restriction to protection domain of the present utility model.All equivalent variations of doing according to the mentality of designing of this case, all fall into the protection domain of this case.

Claims

1. a variable color polarized lenses is characterized in that: at the bonding one deck polaroid of the outside surface of sheet and one deck color-changing membrane, polaroid adopts the polaroid of transmittance 42～48%, deflecting efficacy 70～95%.

2. a kind of variable color polarized lenses as claimed in claim 1, it is characterized in that: described sheet is the PC sheet, and color-changing membrane is evenly tint variable color liquid and make on the TAC sheet, and polaroid is the PVA polaroid.