CN1531325A - Scanner with light source capable of scanning positive and negative film - Google Patents

Abstract

A scanner with a light source for scanning positive and negative films is composed of lamp holder, light shielding arc plate, light guide plate and two reflectors. The lamp holder is positioned on one side of the scanning platform where the positive and negative films can be placed and used for placing the light source. The shading arc plate can enter and exit the arc groove of the lamp holder and is used for being collected in the arc groove or shading the central area of the light outlet of the lamp holder when scanning the positive film or the negative film. The light guide plate is arranged on the other side of the scanning platform and used for guiding the received light to transmit the negative film when the negative film is scanned. The two reflectors are positioned outside the two sides of the light guide plate and used for reflecting light rays emitted by the light source which are not shielded by the shading arc plate into the light guide plate when the negative film is scanned.

Description

Scanner with a light source capable of scanning positive and negative film

technical field

The present invention relates to a scanner, in particular to a scanner with a light source capable of scanning positive and negative films.

Background technique

In today's era of rapid technological development, scanners have become an indispensable part of modern people's daily life. Users can use a scanner connected to a computer to scan documents or patterns, and store images captured by the scanner in the hard disk of the computer for backup purposes. Even, the user can use the software installed in the computer to process the scanned image to improve the scanning quality. Generally speaking, scanners can be divided into scanners for scanning positive or negative films. Positive films are so-called reflective manuscripts, while negative films are so-called transmissive manuscripts, such as transparencies and negatives.

Referring to FIG. 1 , there is shown a cross-sectional view of a scanner 100 generally used for scanning a positive film 101 . In FIG. 1 , the scanner 100 includes a base 102 and a flip cover 104. One end of the flip cover 104 is connected to one end of the base 102 by a pivot device 106, so that the flip cover 104 is configured on the base 102 in an openable and closable manner. . The base 102 has a scanning platform 108 for placing the positive film 101 , and the base 102 has an optical machine 110 and a light source 112 on the optical machine 110 . During scanning, the light source 112 will provide light and irradiate the positive film 101 , and the optical machine 110 will move in the base 102 and gradually receive the light reflected by the positive film 101 to obtain a scanned image.

Referring to FIG. 2, there is shown a cross-sectional view of a scanner 200 generally used for scanning a negative film 201. Referring to FIG. In FIG. 2, the scanner 200 includes a base 202 and a flip cover 204. One end of the flip cover 204 is connected to one end of the base 202 by a pivot device 206, so that the flip cover 204 is configured on the base 202 in an openable and closable manner. . The base 202 has a scanning platform 208 for placing the negative film 201 , and the base 202 has an optical machine 210 for moving in the base 202 and scanning the negative film 201 . A backlight assembly 212 is disposed inside the flip cover 204 for providing light and illuminating the negative film 201 . This allows the optical machine 210 to gradually receive the light transmitted through the negative film 201 and the scanning platform 208 and obtain scanned images.

It should be noted that generally the backlight assembly 212 includes a light source device and a light guide plate, and the light source device is used to emit light into the light guide plate, and the light guide plate guides the received light to illuminate the negative film 201 .

Wherein, when the user wants to scan the positive film 101 and the negative film 201, the user must use the scanners 100 and 200 to scan respectively, and it is impossible for the user to scan the positive film and the negative film only by using one of the scanners. Even, the two scanners take up a lot of space and are quite bulky to carry. Such a design of single-machine single-scanning function will not be practical enough for the current users who pursue single-machine dual-scanning function.

Contents of the invention

In view of this, the object of the present invention is to provide a scanner capable of scanning positive and negative films with a light source. , quite convenient.

According to the object of the present invention, a scanner is proposed, which has a scanning platform for placing positive or negative films. The scanner includes a lamp holder, a light-shielding arc plate, a light guide plate and two reflectors. The lamp holder is located on one side of the scanning platform and is used to place a light source that can provide the light required for scanning. The lamp holder has an arc groove and a light exit. The light-shielding arc plate is configured in the lamp holder in a manner that can enter and exit the arc groove, and is used for being stored in the arc groove or shielding the central area of the light exit when scanning positive or negative films. The light guide plate is located on the other side of the scanning platform, and is used to guide the received light to transmit the negative film when scanning the negative film. The two reflection sheets are located outside the two sides of the light guide plate, and are used to reflect the light emitted by the light source not shielded by the light-shielding arc plate into the light guide plate when scanning the negative film.

According to the purpose of the present invention, a scanner is also proposed, including a base and a flip cover, and the base includes a scanning platform, an optical machine, a lamp holder, a cover arc plate, a rotation button and an elastic element. The scanning platform is arranged on the base for placing a positive film or a negative film. The optical machine is arranged in the base in a movable manner and is located on one side of the scanning platform for scanning the positive film or negative film. The lamp holder is arranged on the light, and is used to place a light source that can provide the light required for scanning. The lamp holder has an arc groove and a light outlet. The light-shielding arc plate is arranged in the lamp holder in a way that can enter and exit the arc groove. It is used to be stored in the arc groove or to shield the central area of the light exit when the photomechanical scans the positive or negative film. One side of the light-shielding arc plate has an extension department. The rotation button is arranged on a side of the base in a movable and rotatable manner, and penetrates through the side of the base, for being pressed and rotated when the optical machine is at a starting position. At least one fastening hole at one end of the rotary button will be fastened with the extension part, and the light-shielding arc plate will enter and exit the arc groove with the rotation of the rotary button. The elastic element is arranged between the other end of the rotary button and the side of the base, and is located outside the base, for providing an elastic force and pushing the rotary button back to the original position after the rotary button is pressed and rotated.

The flip cover is configured on the base in an openable and closable manner. The flip cover includes a light-transmitting plate, a light-guiding plate and two reflection sheets. The light-transmitting plate is arranged on the inner side of the flip cover and faces the scanning platform. The light guide plate is arranged in the flip cover and located on one side of the light-transmitting plate, and is used for guiding the received light to transmit the negative film when the negative film is scanned by the optical machine. The two reflection sheets are arranged in the flip cover and outside the two sides of the light guide plate, and are used to reflect the light emitted by the light source not shielded by the light-shielding arc plate into the light guide plate when the light scans the negative film.

In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, a preferred embodiment will be exemplified below and described in detail with accompanying drawings.

Description of drawings

Fig. 1 is a sectional view showing a scanner generally used for scanning positive films.

Fig. 2 is a sectional view showing a scanner generally used for scanning negative films.

FIG. 3 is a cross-sectional view showing a scanner scanning a positive film according to a preferred embodiment of the present invention.

Fig. 4 is a cross-sectional view showing a negative film scanned by a scanner according to a preferred embodiment of the present invention.

FIG. 5 is an enlarged and exploded schematic view showing the light source, lamp holder and light shielding arc plate in FIG. 3 and FIG. 4 .

Fig. 6 is an enlarged side view showing that the light-shielding arc plate of Fig. 3 is stored in the arc groove.

Fig. 7 is an enlarged side view showing a light exit of a shielding portion of the light-shielding arc plate in Fig. 4 .

FIG. 8 is an enlarged side view showing the rotary button in FIGS. 3 and 4 .

FIG. 9 is a cross-sectional view showing the arrangement of the light collecting sheet and the diffusing sheet on both sides of the light guide plate in FIG. 3 and FIG. 4 .

Detailed ways

Referring to FIG. 3 and FIG. 4 , they are cross-sectional views showing a scanner 300 scanning a positive film 301 and a negative film 401 according to a preferred embodiment of the present invention, respectively. In FIGS. 3 and 4 , the scanner 300 includes a base 302 and a flip cover 304 , one end of the flip cover 304 is fastened to the base 302 by a pivot device 306 , so that the flip cover 304 is fitted to the base 302 in an openable and closable manner. superior.

The flip cover 304 includes a transparent plate 322, a light guide plate 314 and at least one reflective sheet, such as reflective sheets 316a, 318a, 320a, 316b, 318b and 320b. The light-transmitting plate 322 is disposed inside the flip cover 304 and faces the base 302 , and the light guide plate 314 is disposed inside the flip-cover 304 and located above the light-transmitting plate 322 . It is used to guide the received light through the negative film 401 and scan the negative film 401 . The reflective sheets 316a, 318a, and 320a are obliquely arranged on one side of the light guide plate 314 in a stepped manner, and the reflective sheets 316b, 318b, and 320b are also obliquely arranged on the other side of the light guide plate 314 in a stepped manner, so that the reflection The sheets 316a, 318a, and 320a are located on both sides of the light guide plate 314 symmetrically with the reflective sheets 316b, 318b, and 320b, respectively. Wherein, the reflective sheets 316 a , 318 a , 320 a , 316 b , 318 b and 320 b are used to reflect light transmitted from the base 302 into the light guide plate 314 when the scanner 300 scans the negative film 401 .

The base 302 includes a scanning platform 308, an optical machine 310, a light source 312, a lamp holder 323 and a light-shielding arc plate 332. The scanning platform 308 is arranged on the base 302 and faces the light-transmitting plate 322 for placing the positive film 301 or the negative film 401. The optical machine 310 is disposed in the base 302 and can move under the scanning platform 308 for scanning the positive film 301 or the negative film 401 . The lamp holder 323 is configured on the optical machine 310 for placing a light source 312 for scanning. The lamp holder 323 has an arc groove 502 , a light outlet 508 , supports 504 and 506 , as shown in FIG. 5 . In FIG. 5 , one side of the light-shielding arc plate 332 has an extension 334 , and the light-shielding arc plate 332 is disposed in the lamp holder 323 in a manner that can enter and exit the arc groove 502 , as shown in FIGS. 6 and 7 . The supports 504 and 506 can not only strengthen the structure of the lamp holder 323, but also assist the light-shielding arc plate 332 to stop at a proper position, so that the light-shielding arc plate 332 can still be stored in the arc groove 502 or The state of the light exit 508 of the shielded portion is maintained.

It should be noted that the length L1 of the light-shielding arc plate 332 must be smaller than the length L2 of the lamp holder, and the position of the light-shielding arc plate 332 after entering the arc groove 502 must be located in the center of the arc groove 502, as shown in Figure 3 and Figure 4 Show. Therefore, the arc slot 502 must have a structural design to keep the light-shielding arc plate 332 at the center of the arc slot 502 , and the arc width of the light-shielding arc plate 332 must be sufficient to cover part of the light exit 508 . Wherein, the extension part 334 must have a sufficient length to expose one side of the lamp holder 323 , as shown in FIG. 3 and FIG. 4 . There is a force application point for the user to rotate the light-shielding arc plate 332 so that the light-shielding arc plate 332 can enter and exit the arc groove 502 . Wherein, the extension portion 334 cannot block the light emitted by the light source 312 when the light shielding arc plate 332 partially shields the light exit 508 .

In order to enable the user to rotate the light-shielding arc plate 332 , the present invention particularly designs a rotation button 324 on the base side 303 of the base 302 . The rotation button 324 is configured to move and rotate the base side 303 , and penetrates the base side 303 . It is used to be pressed and rotated by the user when the light engine 310 is at a home position, so as to control the light-shielding arc plate 332 to enter and exit the arc groove 502 . Wherein, one end of the rotation button 324 outside the base 302 is used for dragging by the user, and the other end of the rotation button 324 inside the base 302 has fastening holes 330a and 330b, as shown in FIG. 8 . The fastening holes 330a and 330b are used to fasten with the extension part 334 when the rotation button 324 is pressed by the user, so that the light-shielding arc plate 332 can enter and exit the arc groove 502 when the rotation button 324 is turned by the user. Wherein, the shape of the fastening holes 330 a and 330 b must match the cross-sectional shape of the extension portion 334 to achieve the fastening effect.

The present invention also configures protrusions 328 a and 328 b on both sides of the rotation button 324 and inside the base 302 to prevent the rotation button 324 from falling off the side 303 of the base. Even, an elastic element 326 is installed between the end of the rotation button 324 outside the base 302 and the side 303 of the base. The extension of the elastic force can make the rotation button 324 return to the original position after being pressed by the user, and the rotation button 324 will be separated from the extension part 334 .

When the user intends to scan the positive film 301 , the user can visually confirm whether the light-shielding arc plate 332 is stored in the arc groove 502 from the scanning platform 308 . If not, the user can press the rotation button 324 so that the fastening hole 330 a will be fastened with the extension part 334 . Next, the user rotates the rotation button 324 so that the light-shielding arc plate 332 will be stored in the arc groove 502 as the rotation button 324 is rotated, as shown in FIGS. 3 and 4 . When the user releases the rotation button 324 , the rotation button 324 returns to the original position due to the elastic force of the elastic element 326 , and the fastening hole 330 a is also disengaged from the extension portion 334 . Therefore, all the light emitted by the light source 312 will be projected onto the positive film 301 on the scanning platform 308 through the light exit 508 in FIG. 6 , and the optical machine 310 will move step by step to scan the positive film 301 .

If the width of the positive film 301 is smaller than that of the scanning platform 308 , the present invention can use some light-shielding sheets to lay on the scanning platform 308 not covered by the positive film 301 . It is used to prevent part of the light provided by the light source 312 from entering the flip cover 304 , so as to avoid the double image caused by the light guide plate 314 guiding the light onto the positive film 301 .

When the user intends to scan the negative film 401 , the user can visually confirm from the scanning platform 308 whether the light-shielding arc plate 332 is stored in the arc groove 502 . If yes, the user can press the rotation button 324 so that the fastening hole 330 b will be fastened with the extension part 334 . Next, the user rotates the rotation button 324, so that the light-shielding arc plate 332 will slide out of the arc groove 502 as the rotation button 324 rotates, and shield the central area of the light exit 508, as shown in FIGS. 4 and 7 . Wherein, the extension portion 334 will not block the light emitted by the light source 312 . When the user releases the rotation button 324 , the rotation button 324 returns to the original position due to the elastic force of the elastic element 326 , and the fastening hole 330 b is also disengaged from the extension portion 334 . Therefore, part of the light emitted by the light source 312 that is not shielded by the light-shielding arc plate 332 will sequentially pass through the light outlet 508 of the part beside the light-shielding arc plate 332 , the scanning platform 308 of the part not covered by the negative film 401 , and the light-transmitting plate 322 Projected to reflective sheets 316a, 318a, 320a, 316b, 318b and 320b. The reflection sheets 316 a , 318 a , 320 a , 316 b , 318 b and 320 b reflect the light transmitted from the base 302 into the light guide plate 314 . The light guide plate 314 can guide the received light through the light transmission plate 322 , the negative film 401 and the scanning platform 308 in sequence, and the optical machine 310 will move step by step to scan the negative film 401 . Therefore, the length L1 of the light-shielding arc plate 332 in FIG. 5 must match the width of the negative film 401 , or the width of the negative film 401 to be scanned must be equal to or smaller than the length L1 of the light-shielding arc plate 332 . Therefore, part of the light provided by the light source 312 can be prevented from sequentially transmitting through the scanning platform 308 , the negative film 401 and the transparent film 322 , so as to avoid interfering with the light emitted by the light guide plate 314 and causing ghosting.

Of course, those of ordinary skill in the art can also understand that the technology of the present invention is not limited thereto. For example, in the present invention, diffusers 904a and 904b can be arranged inside the light guide plate 314, and light collectors 902a and 902b can be arranged outside the diffusers 904a and 904b, respectively, as shown in FIG. 9 . The light collecting sheets 902a and 902b are used to collect the light reflected by the reflective sheets 316a, 318a and 320a into the diffuser sheet 904a, and the light collecting sheet 902b is used to collect the light reflected by the reflective sheets 316b, 318b and 320b into the diffuser sheet 904b , and the diffusers 904 a and 904 b diffuse the received light into the light guide plate 314 . In addition, the elastic element 326 may be a spring or other elastic structures. The light transmission area of the scanning platform 308 and the light transmission area of the light transmission plate 322 may be equal, and the length of the light source 312 , the width of the scanning platform 308 and the width of the light transmission plate 322 may be equal.

In the scanner with a light source that can scan positive and negative films disclosed in the above embodiments of the present invention, the light-shielding arc plate is designed so that the light emitted by the light source can be used as the light required for scanning positive or negative films, which is quite convenient.

In summary, although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention, and any person of ordinary skill in the art, without departing from the spirit and scope of the present invention, can act as Various changes and modifications, so the protection scope of the present invention should be defined by the claims.

Explanation of reference numbers

100, 200, 300: Scanner

101, 301: positive film

102, 202, 302: base

104, 204, 304: flip cover

106, 206, 306: pivot device

108, 208, 308: scanning platform

110, 210, 310: Optical mechanics

112, 312: light source

201, 401: negative film

212: backlight assembly

303: Side case

314: light guide plate

316a, 316b, 318a, 318b, 320a, 320b: reflectors

322: transparent board

323: lamp holder

324: Spin button

326: elastic element

328a, 328b: protrusions

330a, 330b: button holes

332: shading arc plate

334: extension

502: arc groove

504, 506: supports

508: Light exit

902a, 902b: light collecting sheet

904a, 904b: astigmatism

Claims (20)

1. one kind has a scanner scans platform that is used to place a positive or a negative film, and this scanner comprises at least:

One is positioned at a side of this scanning platform and is used to place a lamp socket that the light source of the required light of scanning can be provided, and this lamp socket has an arc groove and a light outlet;

One shading arc plate, this shading arc plate is configured in this lamp socket in the mode that can pass in and out this arc groove, is used for the middle section that is concealed in this arc groove or covers this light outlet when this positive of scanning or this negative film;

One light guide plate, this shading arc plate is positioned at the opposite side of this scanning platform, is used for guiding the light transmission that is received this negative film when this negative film of scanning; And

At least one first reflector plate and one second reflector plate, this first reflector plate and second reflector plate are positioned at outside the both sides of this light guide plate, and the light that this light source sent that is used for not covered by this shading arc plate in the time reflection of this negative film of scanning is to this light guide plate.

2. scanner as claimed in claim 1 is characterized in that: the length of this light source is greater than the length of this shading arc plate.

3. scanner as claimed in claim 1 is characterized in that this scanner also comprises:

One has the base of this scanning platform, has the ray machine of removable this side in this scanning platform in this base, and this ray machine is used to scan this positive or this negative film, and on this ray machine this lamp socket of configuration; And

But a mode with folding is configured in the flip on this base, and the inboard of this flip has a light-passing board in the face of this scanning platform, has this light guide plate, this first reflector plate and this second reflector plate in this flip.

4. scanner as claimed in claim 3 is characterized in that this scanner more comprises:

One rotary knob, this rotary knob is configured on the chassis side of this base in mode removable and that rotate, and penetrate this chassis side, be used for the rotation that when this ray machine is positioned at an initial position, is pressed, make this rotary knob an end at least one snapping hole will with an extension snapping of a side of this shading arc plate, and this shading arc plate will pass in and out this arc groove along with the rotation of this rotary knob.

5. scanner as claimed in claim 4 is characterized in that this scanner also comprises:

At least one protrusion, this protrusion are configured in the both sides of this rotary knob and are positioned at this base, are used to block this rotary knob in this chassis side.

6. scanner as claimed in claim 4 is characterized in that this scanner also comprises:

One flexible member, this flexible member are configured between the other end of this rotary knob and this chassis side and are positioned at outside this base, and being used for being pressed at this rotary knob provides an elastic force after having rotated, and push this rotary knob and get back to the home position.

7. scanner as claimed in claim 6 is characterized in that: this flexible member is a spring.

8. scanner as claimed in claim 3 is characterized in that this scanner also comprises:

Other a plurality of reflector plates, the described sheet of penetrating is configured in this flip and equivalent is symmetrically located at outside the both sides of this light guide plate, is used for reflecting not the light that this light source sent that covered by this shading arc plate to this light guide plate.

9. scanner as claimed in claim 3 is characterized in that this scanner also comprises:

One first light-collecting piece and one second light-collecting piece, this first light-collecting piece and second light-collecting piece are configured in this flip and are positioned on the both sides of this light guide plate, are used for assembling respectively light that this first reflector plate and this second reflector plate reflected to this light guide plate.

10. scanner as claimed in claim 9 is characterized in that this scanner also comprises:

One first scattering sheet and one second scattering sheet, this first scattering sheet and second scattering sheet be configured in this flip and the side that lays respectively at this light guide plate and this first light-collecting piece between and between the opposite side and this second light-collecting piece of this light guide plate, be used for dispersing respectively light that this first light-collecting piece and this second light-collecting piece assemble to this light guide plate.

11. a scanner is characterized in that comprising:

One base, this base comprises:

The one scan platform, this scanning platform is configured on this base, is used to place a positive or a negative film;

One ray machine, this ray machine is configured in this base in a movable manner, and is positioned at a side of this scanning platform, is used to scan this positive or this negative film;

One lamp socket, this lamp socket is configured on this ray machine, and being used to place one can provide the light source that scans required light, and this lamp socket has an arc groove and a light outlet;

One shading arc plate, this shading arc plate is configured in this lamp socket in the mode that can pass in and out this arc groove, the middle section that is used for when this positive of this optical mechaical scanning or this negative film, being concealed in this arc groove or covers this light outlet, a side of this shading arc plate has an extension;

One rotary knob, this rotary knob is configured on the chassis side of this base in mode removable and that rotate, and penetrate this chassis side, be used for the rotation that when this ray machine is positioned at an initial position, is pressed, make this rotary knob an end at least one snapping hole will with this extension snapping, and this shading arc plate will pass in and out this arc groove along with the rotation of this rotary knob; With

One flexible member, this flexible member are configured between the other end and this chassis side of this rotary knob, and being used for being pressed at this rotary knob provides an elastic force after having rotated, and push this rotary knob and get back to the home position; With with

One flip, but this flip be configured on this base in the mode of folding, this flip comprises:

One light-passing board, this light-passing board is configured in the inboard of this flip, and in the face of this scanning platform;

One light guide plate, this light guide plate are configured in this flip and are positioned at a side of this light-passing board, are used for guiding the light transmission that is received this negative film when this negative film of this optical mechaical scanning; With

At least one first reflector plate and one second reflector plate, this first reflector plate and second reflector plate are configured in this flip and are positioned at outside the both sides of this light guide plate, are used for the light that this light source sent that when this negative film of this light scanning reflection do not covered by this shading arc plate to this light guide plate.

12. scanner as claimed in claim 11 is characterized in that: the length of this light source is greater than the length of this shading arc plate.

13. scanner as claimed in claim 11 is characterized in that this scanner also comprises:

At least one protrusion, this protrusion are configured in the both sides of this rotary knob and are positioned at this base, are used to block this rotary knob in this chassis side.

14. scanner as claimed in claim 11 is characterized in that: this scanner also comprises:

Other a plurality of reflector plates, described other a plurality of reflector plates are configured in this flip and equivalent is symmetrically located at outside the both sides of this light guide plate, are used for reflecting not the light that this light source sent that covered by this shading arc plate to this light guide plate.

15. scanner as claimed in claim 14 is characterized in that this scanner also comprises:

One first light-collecting piece and one second light-collecting piece, this first light-collecting piece and second light-collecting piece are configured in this flip and are positioned on the both sides of this light guide plate, are used for assembling respectively light that this first reflector plate and this second reflector plate reflected to this light guide plate.

16. scanner as claimed in claim 15 is characterized in that: this scanner also comprises:

One first scattering sheet and one second scattering sheet, this first scattering sheet and second scattering sheet be configured in this flip and the side that lays respectively at this light guide plate and this first light-collecting piece between and between the opposite side and this second light-collecting piece of this light guide plate, be used for dispersing respectively light that this first light-collecting piece and this second light-collecting piece assemble to this light guide plate.

17. scanner as claimed in claim 16 is characterized in that: this flexible member is a spring.

18. scanner, have a base and a flip, this base has an one scan platform and a ray machine, and this ray machine is used to scan a positive or a negative film that is positioned on this scanning platform, this flip has a light-passing board in the face of this scanning platform, it is characterized in that this scanner comprises at least:

One lamp socket, this lamp socket is configured on this ray machine, and being used to place one can provide the light source that scans required light, and this lamp socket has an arc groove and a light outlet;

One shading arc plate, this shading arc plate is configured in this lamp socket in the mode that can pass in and out this arc groove, the middle section that is used for when this positive of this optical mechaical scanning or this negative film, being concealed in this arc groove or covers this light outlet, a side of this shading arc plate has an extension;

One rotary knob, this rotary knob is configured on the chassis side of this base in mode removable and that rotate, and penetrate this chassis side, be used for the rotation that when this ray machine is positioned at an initial position, is pressed, make this rotary knob an end at least one snapping hole will with this extension snapping, and this shading arc plate will pass in and out this arc groove along with the rotation of this rotary knob;

One flexible member, this flexible member are configured between the other end and this chassis side of this rotary knob, and being used for is pressed an elastic force to be provided and to push this rotary knob after having rotated at this rotary knob gets back to the home position;

One light guide plate, this light guide plate are configured in this flip and are positioned at a side of this light-passing board, are used for guiding the light transmission that is received this negative film when this negative film of this light scanning;

One first scattering sheet and one second scattering sheet, this first scattering sheet and second scattering sheet are configured in this flip and lay respectively at the both sides of this light guide plate, are used for dispersing the light that received to this light guide plate.

One first light-collecting piece and one second light-collecting piece, this first light-collecting piece and second light-collecting piece be configured in this flip and lay respectively at this first scattering sheet and the outside of this second scattering sheet on, be used for assembling the light that received to this first scattering sheet and this second scattering sheet; And

At least one first reflector plate and one second reflector plate, this first reflector plate and second reflector plate be configured in this flip and lay respectively at this first light-collecting piece and the outside of this second light-collecting piece outside, be used for the light that this light source sent that when this negative film of this light scanning reflection do not covered by this shading arc plate to this first light-collecting piece and this second light-collecting piece.

19. scanner as claimed in claim 18 is characterized in that this scanner also comprises:

At least one protrusion, this protrusion are configured in the both sides of this rotary knob and are positioned at this base, are used to block this rotary knob in this chassis side.

20. scanner as claimed in claim 18 is characterized in that this scanner more comprises:

Other a plurality of reflector plates, described other a plurality of reflector plates are configured in this flip and equivalent is configured in outside the outside of this first light-collecting piece and this second light-collecting piece symmetrically, are used for reflecting not the light that this light source sent that covered by this shading arc plate to this first light-collecting piece and this second light-collecting piece.

Images