Automobile rear view mirror lens and its preparation method

A technology of automobile rearview mirror and rearview mirror, which is applied in the field of auto parts, can solve problems such as high product cost, blind spots, complex process, etc., and achieve the effects of good uniformity, short production cycle and high efficiency

Inactive Publication Date: 2008-08-13
长春博信光电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of automotive rearview mirror lens, which not only overcomes the shortcomings of the existing silver-white rearview lens that cause eye fatigue, easily produces dizziness, and instantly produces blind spots, but also overcomes the existing blue reflected light. Rearview lenses have the disadvantages of complex process, large equipment investment, unstable quality and high product cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] 1. Manufacture blue glass plate.

[0012] Based on the existing float glass production method, add 3.5% of cobalt oxide, 1.5% of nickel oxide, and 0.8% of copper oxide into the main material of the glass to produce the glass with a wavelength between 460nm and 480nm. blue glass plate. The thickness of the glass plate is selected at 3mm.

[0013] The glass used for the production of flat mirrors requires its flatness error to be ≤4’30”; the parallelism error is required to have a deviation of ≤0.1mm within the temperature range of -40°C to +60°C on a measuring length of 100 mm.

[0014] 2. Cut out the glass substrate of the rearview mirror lens.

[0015] According to the shape and size of the rearview mirror of different models, the glass substrate of the lens is cut and edged. Those that need to be processed into spherical mirrors can be made into the required radius R by heating and pressing. The radius R is controlled within the range of 889 mm to 1651 mm.

[001...

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PUM

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Abstract

An automobile rear view mirror lens and producing method thereof are disclosed, pertaining to automobile parts technique field. The invented automobile rear view mirror lens is composed of a blue glass sheet and an aluminum or chromium plated film on one side of the glass sheet. The producing method are: producing a blue glass plate by using the floating method, cutting the glass plate to produce the rear view mirror glass base sheet, plating an aluminum film or a chromium film thereon by a normal vacuum plating process, and obtaining the invented product. The positive effects of the invention are: the two techniques which are producing color glass plate by the floating method and plating on the glass plate are matured, techniques with low costs are combined together, so that blue rear view lens with a cost which is only 30145604210f the cost of the traditional products is produced. And the products has no selectivity to optical spectrum, has good evenness, and reflectance ratio thereof can be controlled at optimal value (40%). The production period is short, the production efficiency is high, and it is suitable for mass production. The invented products create conditions for mounting rear view mirrors which are viewed as high-grade products on normal automobiles.

Description

technical field [0001] The invention belongs to the technical field of auto parts, in particular to a rearview mirror of an automobile. Background technique [0002] Rearview mirrors are an indispensable part of cars participating in modern traffic. At present, the middle and low-end cars that account for the vast majority of the total number of cars are still equipped with traditional silver-white rearview mirror lenses that are coated with aluminum or chrome film on one side of colorless glass. This kind of rearview mirror lens has a high light reflectivity, usually around 90%, which is more dazzling. Especially when driving at night when the traffic flow is large, the driver's eyes will not be stimulated by the strong light emitted by the rear headlights reflected by the rearview mirror, which can easily cause eye fatigue or dizziness. Especially when the rear vehicle overtakes, the eyes of the driver of the overtaken vehicle are stimulated by strong light, and blind sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/10B60R1/00
Inventor 付秀华胡天佐
Owner 长春博信光电子有限公司
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