DE2358108A1 - Fresnel lens for use with vehicle mirrors and screens - is made of flexible plastics and designed to increase field of view of vehicle occupant - Google Patents

Abstract

The fresnel lens is cut in rectangular form, whereby the edge lengths lie between 25 to 35 cm. The centre of the concentric circular zone of the lens lies outside the point of intersection of the diagonals of the rectangle. The lens is fixed to a mirror.

Description

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It has turned out to be. of- working through the in Betr. mentioned. Patent, emphasized that "that the following paragraphs for better clarity, of the inventive concept can be better redrafted without changing the content of the patent. Through this new, The door parts, which are also surprising to the person skilled in the art, become clear of the invention particularly clear. -. ■■ -.- -

3eite2, paragraph 1:

One cause of accidents is the well-known "blind spot" in motor vehicles, i.e. that the driver has to go backwards. " to the rear sideways and to the side a certain dead one There is a hem in which he does not enter the traffic processes Observe motor traffic mirrors. Can. "Another danger lies in the fact that (etc. as in the application)

Page 3, paragraph 1 -

It has now been "found that these sources of accidents in motor vehicle traffic can be avoided or reduced if Fresnel lenses used in motor vehicles according to the invention will. Fresnel lenses are particularly preferred for this purpose a transparent and flexible plastic is used. The effect can be increased if the lens is rectangular is cut, "being the center of the concentric zones does not have to be at the intersection of the diagonals of the rectangle. -

Page 3, paragraph 2

The ones used according to the invention. Fresnel lenses are attached to the Rear window and / or attached to the rearview mirror of the motor vehicle. The fastening can be done using ...... (etc.) '

Page 3, paragraph 4 "'".

It has surprisingly been found that, for example a bus driver through the one on the back, for example, vertical rear window, or Fresnel lenses attached to its rearward-facing outside rear-view mirror Ground behind his car in the inside mirror or by the

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ORIGINALINSPECTED

Looking backwards or on the long sides of the car in the exterior mirrors can see and thus he can hardly see the whole behind his car and to the side, along the car can. In the case of a passenger vehicle with (etc.)

Page 5, paragraph 3

The Fresnel lenses are according to the invention in the interior of the Motor vehicle on the rear window and / or on the exterior mirrors of the motor vehicle attached that the plane or flat Side rests against the window and the üingteil facing the driver is. If the driver looks directly or via the inside mirror or via an outside mirror through the Fresnel lens, he can both downwards and sideways a much larger one Reaching point of view.

Page 6, paragraph 1

When attaching the flexible plastic Fresnel lenses on the clean rear window and / or on the rear-view mirror of the motor vehicle is generally sufficient (etc.)

Page 6, paragraph 3

, namely limited vision or limited viewing angle to the rear and to the side and exposure to glare from behind,

Page 7, paragraph 1

One size turned out to be sufficient for all practical purposes the Fresnel lens with a diameter of about 20 to 35 cm or an edge length of the longer edge of the rectangle of 25 to 35 cm, preferably about 25 to 30 cm. On the one hand will be thereby the (etc.).

The following additional claims result from the clearer formulation:

Claim 4 ^ ₁₁₊ ,,., (? ** fW.mS? W. *) * / * fld | rc4 QQkQVM *> * ck ** i,

Use according to ^ 'p' ^nt - ¹ .jukLJI that rectangular cut Fresnel Iinsen be used, wherein the edge length of the long edge may be about 25 to 35 cm.

Claims (1)

Claim % ^^ $ & *** & * «&, Use according to claim 4> / that the center of the concentric, annular zones of the Fresnel lens outside the cut point of the diagonal of the rectangle. Claim "5 Use of the Fresnel lens according to Claim 1 f S bf g p aopsungj that it is fixed on a mirror. 509822/0131