CN2367037Y

CN2367037Y - Scanning arrangement having function of exchanging camera lens

Info

Publication number: CN2367037Y
Application number: CN 99202044
Authority: CN
Inventors: 陈志名
Original assignee: Acer Computer Co Ltd
Current assignee: BenQ Corp
Priority date: 1999-02-01
Filing date: 1999-02-01
Publication date: 2000-03-01
Anticipated expiration: 2009-02-01

Abstract

The utility model relates to a scanning arrangement having the function of switching camera lenses. The utility model comprises a case cover, a guide rail and an optical module piece, wherein, the guide rail is arranged fixedly in the case cover, and the optical module piece is installed movably in the case cover. The optical module piece comprises a lens support, a rocker gear and two lenses with different resolution, wherein, the lenses are installed on the lens snug, and the rocker gear is rotatablely connected with the lens support. When the optical module piece moves, the guide rail pushes the rocker gear to make the rocker gear rotated and driven the lens support. One of the lenses installed on the lens support can be switched to the used position.

Description

Scanner with cutaway function

The utility model relates to and a kind ofly need not to establish drive unit in addition and can make the scanner that camera lens switches.

The scanner of at present existing twin-lens comes out.This kind scanner has the camera lens of two different resolutions, at the difference of applicable cases and select one of them to use.Under some applicable cases, the user when higher, can use high-resolution lens to the resolution requirement of contribution; And when the user hangs down the resolution requirement of contribution, then can use the low resolution camera lens.Usually in fact, though high-resolution camera lens resolution is higher, can scan that the contribution area is less, sweep speed is slower; Though and the camera lens resolution of low resolution is lower, the area that can scan contribution is big, sweep speed is very fast.Therefore the twin-lens scanner can allow the user that bigger elasticity is arranged when using.

Relevant patent comprises the U.S. the 5th, 535, No. 040, the 5th, 552, No. 939 etc.These prior aries are used the high-resolution and low-resolution camera lens in order to switch, then set up one group of drive unit (being different from the drive unit of optical mode assembly) in addition again, so very uneconomical.

The purpose of this utility model is to provide a kind of scanner with cutaway function, and the used power of cutaway is that the drive unit by former optical mode assembly is provided, and does not need to establish in addition drive unit.

The purpose of this utility model is achieved in that promptly provides a kind of scanner with cutaway function, comprising: cap; Guide rail is fixedly arranged in this cap; The optical mode assembly is arranged in this cap movably, and this optical mode assembly includes the camera lens bearing, rotatably connects the rocker arm body of this camera lens bearing and be arranged at first and second camera lens on this camera lens bearing; When this optical mode assembly moves, push this rocker arm body by this guide rail, can make the rotation of this rocker arm body and drive this camera lens bearing, one of them moves to the use location and make first and second camera lens of being located on this camera lens bearing.

The advantage of the utility model device is, its power that cutaway is used is that the drive unit by the optical mode assembly is provided, and need not to establish in addition drive unit, and is more more economical than existing twin-lens scanner.

Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail, wherein:

Figure 1A is the schematic diagram of scanner optics membrane module of the present utility model, shows the situation of using first camera lens;

Figure 1B is the vertical view of the camera lens bearing of Figure 1A;

Fig. 1 C is the bottom view of the camera lens bearing of Figure 1A;

Fig. 2 A is the schematic diagram of the optical mode assembly of the utility model scanner, shows the situation of using second camera lens;

Fig. 2 B is the vertical view of the camera lens bearing of Fig. 2 A;

Fig. 2 C is the bottom view of the camera lens bearing of Fig. 2 A;

Fig. 3 is for being the bottom view of the lower cover of whole scanner corresponding to Figure 1A, Figure 1B and Fig. 1 C;

Fig. 4 A～Fig. 4 D shows that camera lens is switched to the micromotion of Fig. 2 A by Figure 1A;

Fig. 5 is for being the lower cover bottom view of whole scanner corresponding to Fig. 2 A, Fig. 2 B and Fig. 2 C;

Fig. 6 A～Fig. 6 D shows that camera lens is switched back the micromotion of Figure 1A by Fig. 2 A.

Conjunction with figs. illustrates preferred embodiment of the present utility model.

Please consult Figure 1A and Figure 1B simultaneously, Figure 1A is the schematic diagram of the optical mode assembly of scanner of the present utility model, and Figure 1B is the top view of Figure 1A.Wherein, camera lens bearing 120 is provided with first camera lens 140 and second camera lens 141 of different resolution, and camera lens bearing 120 can laterally be slided along a slide bar 180, first camera lens 140 and second camera lens 141 can be switched on demand use (switching to Fig. 2 A as Figure 1A).Figure 1A shows the situation of using first camera lens 140, and the light that is come by contribution (not shown) reflects, is imaged on the charge coupled device 130 through first camera lens 140 through level crossing 110.And switching the back shown in Fig. 2 A, the light that is come by contribution reflects, is imaged on the charge coupled device 130 through second camera lens 141 through level crossing 110.

Camera lens switching mechanism of the present utility model now is described.See also Fig. 1 C, Fig. 1 C is the bottom view according to the camera lens bearing of Figure 1A, be provided with a rocking arm 160 and a spring 170 in the bottom of camera lens bearing 120, wherein; an end 162 of rocking arm 160 is articulated in the bottom of optical mode assembly 100; rocking arm 160 can be moved with respect to optical mode assembly 100 around these pivot end 162 rotations, and the other end of rocking arm 160 is connected with projection 163, and a fluting 161 is set on rocking arm 160.One end 171 of spring 170 is fixed in the bottom of optical mode assembly 100, the other end then with connecting pin 172 through the fluting 161 of rocking arm 160 and be connected on the camera lens bearing 120.It should be noted that to be provided with two fins 150,151 that in the bottom of optical mode assembly 100 when camera lens bearing 120 during in position shown in Figure 1A, rocking arm 160 leans on fin 151, shown in Fig. 1 C.And when camera lens bearing 120 switched to position shown in Fig. 2 A or Fig. 2 B, rocking arm 160 leaned on fin 150, shown in Fig. 2 C.

The operating principle that camera lens of the present utility model switches now is described.See also Fig. 3, Fig. 3 is the lower cover bottom view of whole scanner, and the lower cover 200 of scanner can be divided into one scan district 230 and first switch area 210, second switch area 220.When the scanning contribution, optical mode assembly 100 is to move in scanning area 230, and moving direction is shown in double-head arrow among the figure.Switch if carry out camera lens, then optical mode assembly 100 must enter a wherein switch area 210 or 220, utilizes the guide rail 240 or 250 that is installed on the lower cover 200 to come cutaway.

Illustrate that at first optical mode assembly 100 enters the situation of first switch area 210, see also Fig. 4 A to Fig. 4 D, it shows the micromotion that camera lens switches, in optical mode assembly 100 moving process (these figure do not indicate optical mode assembly 100); the projection 163 on the rocking arm 160 will touch guide rail 240; and projection 163 is subjected to pushing of guide rail 240, and rocking arm 160 is rotated, and spring 170 is elongated.Please note Fig. 4 C, the deflection that this moment, spring 170 was stretched is for maximum.Then, projection 163 continues to be subjected to pushing of guide rail 240, and under spring 170 restoring force effects, rocking arm 160 is flapped toward fin 150 rapidly and stops, and has so just finished the camera lens change action, and the result as shown in Figure 5.

If camera lens will be switched back, then optical mode assembly 100 must enter second switch area 220, see also Fig. 6 A to Fig. 6 D, it shows the situation that camera lens switches, and its mode is the spring drawing process with previous described similar from Fig. 6 A to Fig. 6 C, and Fig. 6 C to Fig. 6 D is a spring recovery process, under spring 170 restoring force effects, rocking arm 160 is flapped toward fin 151 rapidly and stops, and so camera lens just switches back original situation.

By above narration as can be known, the used power of cutaway is that the drive unit by the optical mode assembly is provided, and the utility model is not established drive unit in addition, and is therefore more economical than existing twin-lens scanner.When switching the camera lens of use,, the optical mode assembly is urged to the switch area gets final product as long as utilize the drive unit that just is arranged at scanner inside originally.

Claims

1. the scanner with cutaway function comprises: cap; Guide rail is fixedly arranged in this cap; The optical mode assembly is characterized in that, this optical mode assembly is arranged in this cap movably, and this optical mode assembly includes the camera lens bearing, rotatably connects the rocker arm body of this camera lens bearing and be arranged at first and second camera lens on this camera lens bearing.

2. the scanner with cutaway function as claimed in claim 1 is characterized in that, this optical mode assembly also comprises a shell, and this camera lens bearing, rocker arm body and first and second camera lens all are contained in this shell.

3. the scanner with cutaway function as claimed in claim 2 is characterized in that, this optical mode assembly also includes two fins, one of them this rocker arm body when moving to the use location of this first and second camera lens be rest against this each fin one of them.

4. the scanner with cutaway function as claimed in claim 3, it is characterized in that, this rocker arm body comprises a rocking arm, a spring and a connecting pin, this rocking arm is provided with a fluting, and an end of this rocking arm can be articulated in the shell of this optical mode assembly rotatably with respect to this shell, one end of this spring is fixed on this shell, and the other end is connected on this camera lens bearing through this fluting with this connecting pin.

5. the scanner with cutaway function as claimed in claim 4, it is characterized in that, this rocking arm also comprises a projection, is connected on the other end of this rocking arm, and this guide rail when this optical mode assembly moves makes this rocker arm body rotation and pushes this projection with driving this camera lens bearing.

6. the scanner with cutaway function as claimed in claim 1 is characterized in that, this optical mode assembly also comprises a slide bar, be fixedly arranged in this shell, and this camera lens bearing is erected on this slide bar slippingly.