CN201907457U

CN201907457U - Blind area viewing mirror for minibus

Info

Publication number: CN201907457U
Application number: CN2010205392711U
Authority: CN
Inventors: 卢彭寿
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-15
Filing date: 2010-09-15
Publication date: 2011-07-27
Anticipated expiration: 2020-09-15

Abstract

The blind area viewing mirror for a minibus is a pure optical device and has the advantages of no power supply required, simple structure, low cost, convenience in maintenance and less possibility of damage. The blind area viewing mirror employs a camera shooting lens to shoot an image of a blind area behind the minibus, and then the image is refracted to a plane reflecting mirror in the minibus before a driver through a plane reflecting mirror, or refracted to two plane reflecting mirrors outside the minibus on the left side and the right side of the driver, so that the driver can see a complete picture of the blind zone behind the minibus.

Description

Utility van blind area visor

＜one〉technical field

The utility model is the pure optical technology device that is applied on utility van and the large and medium-sized passenger vehicle to observe blind area behind the car.

＜two〉background technology

At present the device of blind area has two kinds substantially behind the car as observing on utility van, the medium-sized and motor omnibus.First kind is that the minute surface light deflector of projection slightly is installed on vehicle rear window, in order to blind area scenery behind the observation car.Its shortcoming is that angle of field is too little, only about about one meter to the viewing distance behind the car, the observation width of left and right sides behind the car is also disliked too little, and image is limpid in sight inadequately in the mirror, and driver observation is also very inconvenient, so its function does not satisfy requirement.Second kind is outside vehicle rear window with before the driver cover device the same with the electronic monitor principle to be installed.Its shortcoming is: device is complicated, need applied power source, must use discontinuously, price is higher, fragile, difficult maintenance, therefore can not generally apply.

＜three〉summary of the invention

Weak point for two kinds of devices overcoming above-mentioned present application, I have designed the device of the very simple pure optical system of a kind of structure, it can satisfy the driver to car after and the observation of left and right sides blind area behind the car, and can see behind the rear wall outside face of car own, the car ground and with car after the mutual edge distance mutually of object, the just space, blind area complete picture behind the car.

The scheme principle that the design adopted is shown in (Fig. 1); It is a slice or one group of biconcave lens with a pick-up lens 1, on vehicle size being observed in the blind area decides, absorb the scene image in the required range of observation in blind area behind the car, project then in the silver-plated plane mirror 2 of a slice, the angled β of this eyeglass and pick-up lens is shown in (Fig. 1), its image of taking the photograph in the mirror of will making a video recording reflexes in the light deflector of being convenient to driver observation in the car, in the existing plane mirror 3 in the preceding upper right side of Che Nei driver, improper as existing position, reconfigurable one, also can also can reset as the position is improper by the reflexing in two existing light deflectors 4 of the outer left and right sides of car of (Fig. 3-2) by the dress method.These scene images of taking the photograph are complete pictures of blind area behind the car.The design since the installation direction of eyeglass outwardly, so it is big to receive light quantity, so image is limpid in sight in the mirror.

The design's beneficial effect is: driver in car as (Fig. 2-1) or from car outside two as (Fig. 3-2) have now just can see the complete scene image in the past can't seeing limpid in sight in the blind area behind the car easily light deflector.And be a picture continuously in time, the branch that starts and stop using is arranged unlike electronics package.Therefore greatly facilitate driver's driving, can exempt the accident when reversing.

This device is in case be installed on the use location, just can with car on existing three light deflectors are the same works discontinuously never, especially energy free and other any consumption, it is simple in structure, easy to maintenance, only need the wiping dust, cheap, function is fine.

＜four〉description of drawings

(Fig. 1) be the optical system schematic diagram of utility van blind area visor.1 is that shooting is biconcave lens as shown with camera lens among the figure, the scene image that it is taken the photograph projects shown in arrow among the figure in the plane mirror 2, this eyeglass will throw the image that comes again and be refracted in the preceding plane mirror 3 of Che Nei driver, and the driver just can therefrom come into plain view to the scenery in the blind area behind the car like this.

(Fig. 2-1) and (Fig. 2-2) be this optical system device be applied to utility van, face with one of large and medium-sized passenger vehicle installation method.

(Fig. 3-1) and (Fig. 3-2) is that this optical system device is applied to the medical truck used in some este wagons, cargo transport rigid truck, the hospital etc.

(Fig. 4-1) and (Fig. 4-2) is that this optical system device is installed on the C-class of present popular duck hip pattern in a large number.

＜five〉specific embodiment

(1) embodiment one

Shown in (Fig. 2-1) and (Fig. 2-2), the outer part of car in the optical system of (Fig. 1) is installed between the senior middle school of vehicle rear window outside glass port of utility van, minibus etc. near the position, its pick-up lens comprises the distance that the driver will observe after to car, the observation width to left and right sides behind the car, the rear wall outside face of car, the ground behind the car etc. as will be designed to its angle of field α with biconcave lens 1.

Angle β between biconcave lens 1 and the plane mirror 2 wants shown in (Fig. 1) and can regulate, because shape, size, the position of different vehicle vehicle rear windows are inequality.Position dimension with respect to the light deflector before the Che Nei driver is also different, so the β angle wants to do suitable adjusting.Fixed when the concrete vehicle of using, the β angle has also just been fixed so.

During installation, make angle of field α major part behind car so that look far, but a limit will become a δ angle with car rear wall vertical direction intersection clip so that pick-up lens take the photograph car rear wall outside face.

(2) embodiment two

Shown in (Fig. 3-1) and (Fig. 3-2), be that this optical system is applied to the medical truck in some este wagon, freight truck, the hospital etc., because these automobiles on rear wall, often be provided with can switch door leaf, therefore the correct position of two corners about can be as shown in (Fig. 3-2) it being installed on behind the car, so that the fade chart picture projects in two light deflectors of the outer left and right sides of car again behind the picked-up car, the position of two eyeglasses like this is improper reconfigurable.

(3) embodiment three

Shown in (Fig. 4-1) and (Fig. 4-2): be that this optical system is installed on the miniature car of present popular duck hip pattern in a large number, the application process of being introduced among its installation requirement and (Fig. 2-1) and (Fig. 2-2) is similar with lime light or identical, will stretch out a cantilever so that pick-up lens is taken the photograph near the ground-surface scenery of car rear wall to some car.

Claims

1. utility van blind area visor, it by in a housing, be provided with a plane mirror is set before pick-up lens, plane mirror and the Che Nei driver outside housing, at automobile or outside automobile two plane mirrors of driver's left and right sides formed, it is characterized in that: by the scene image in the blind area behind the car of the required observation of pick-up lens picked-up driver, project then in the plane mirror, be refracted in the plane mirror before the Che Nei driver again or two light deflectors of the outer driver's left and right sides of car in.

2. according to the blind area of utility van described in the claim 1 visor, it is characterized in that: according to vehicle to car after the requirement of blind area range of observation size can be the pick-up lens of a slice or one group of biconcave lens.