CN2282695Y - Light-source apparatus for reading projecting picture - Google Patents

Abstract

The utility model relates to a light-source device for reading projecting images. More than two lamp tubes are respectively arranged in a read area and on both sides of reflected rays in a crossing mode, the mutual connection of the projected light of the lamp tubes is utilized to ensure that the projected light by the lamp tubes can cover the length range of the read area, so that the purpose can be achieved that lamp tubes with small tube diametersand short lengths can be utilized to project images with large sizes in a reading device without the limitation of the length of the read area.

Description

Read the light supply apparatus of projected image

The utility model relates to a kind of light supply apparatus that reads projected image, is meant especially that a kind of volume is little and can reads the light supply apparatus that reads projected image of large-size images.

The light source that the projected image reading device of selling on the market is adopted has Led, Halogen lamp LED, tungsten lamp, daylight lamp and cold-cathode fluorescence lamp, and is general all according to the required intensity of light source of projected image reading device, serviceable life, price and read factor such as length and select suitable light source.When using line style projected image inductor (Line ccd) as the projection reading device, great majority adopt daylight lamp or cold-cathode fluorescence lamp to make light source, the daylight lamp that is adopted or the caliber of cold-cathode lamp and length, the size difference that reads projected image because of need is different, for example daylight lamp has specifications such as 4W, 6W, 8W, 10W, 20W, 40W, and the illumination of different tube diameters length is provided; And cold-cathode fluorescence lamp can be made the fluorescent tube of different length according to the size of required illumination.But as the projection picture size that need read is main just generally select the sight lamp for use, so that enough throw lights to be provided when big (for example A2, A1, A0 equidimension).

Fig. 7, shown in Figure 8 be generally as the figure that is provided with of projected image reading device light source.Wherein the illumination length of fluorescent tube 1 must contain and is read zone 3 length, just can make be read the zone be subjected to irradiation degree unanimity, the image that is read the zone is intactly reflexed in the reading device.Yet, because fluorescent tube is made with glass, consider the strength of materials, fluorescent tube length is long more, therefore as the projection picture size that need read when big then required caliber is just big more, and, fluorescent tube 1 will also increase because of the length increase makes caliber, so that on single unit system, need use than large space and come ccontaining this fluorescent tube 1, and make the single unit system can not miniaturization.

Order of the present utility model provides a kind of pipe is used as reading the large scale projected image through fluorescent tube less and that length is the short light supply apparatus that reads projected image.

Another purpose of the present utility model provides a kind of light supply apparatus that reads projected image that makes the single unit system miniaturization of projected image reading device.

The utility model is achieved in that and includes fluorescent tube, bearing, it is characterized in that: above-mentioned fluorescent tube has at least more than two, be divided into the both sides of above-mentioned reflected ray alternately with the be separated by mode of suitable distance of above-mentioned reflected ray, and be read by above-mentioned that the place is used to make projection ray to contain the whole length range that this is read the zone to this both sides horizontal-extending that is read the length direction in zone in the middle of the zone length respectively; Above-mentioned lamp socket has two at least, is provided with in corresponding above-mentioned plural fluorescent tube quantity mode, is used for these fluorescent tubes of bearing, makes the light of above-mentioned plural at least fluorescent tube can be projeced into this and reads on the zone.

Above-mentioned plural at least bearing convexes with a plate body that is used for fixing respectively this plural at least fluorescent tube respectively.

Above-mentioned plate body is provided with several and can be used for adjusting this plural at least fluorescent tube light, makes it to be projeced into the adjustment hole that is read regional location, and this plural at least fluorescent tube being incident upon be read the light in zone to be continuity and illumination consistent is purpose.

Several are adjusted holes and can be with above-mentioned and be read the slotted hole that the zone length direction is parallel to each other and extends in the tool.

Wherein this plural at least bearing can be respectively the mode at the two ends of supporting this plural each fluorescent tube.

Wherein this plural bearing can be the bearing that is the hollow strip, is used for this plural fluorescent tube of bearing, and is being arranged with a breach respectively towards being read region direction, the light of this plural fluorescent tube can be incident upon be read on the zone.

Wherein the hollow bulb of this plural bearing can be provided with reflecting piece, to strengthen throw light.

Characteristics of the present utility model are to divide alternately to be located at plural at least fluorescent tube to be read zone and reflected ray both sides, utilize the mutual linking of this plural at least fluorescent tube throw light, this light that plural fluorescent tube throwed at least can be contained be read regional length range, to reach the fluorescent tube that can utilize the less and length of caliber short, just large-sized image intactly can be incident upon in the reader, and not be subjected to this to read the restriction of zone length.

Fig. 1 is the projected image reading device organigram that constitutes with the utility model, the position that concerns that is used to disclose the utility model light supply apparatus and single unit system.

Fig. 2 is the another kind of projected image reading device organigram with the novel formation of this reality, is used to disclose the concern position of the utility model another kind without the light supply apparatus of reflector group reading device and single unit system.

Fig. 3 is the synoptic diagram that is provided with of the present utility model, is used to disclose the utility model light supply apparatus and the position that concerns that is read the zone.

Fig. 4 is the sectional view of being got along the A-A line of Fig. 2;

Fig. 5 is the sectional view of being got along the B-B line of Fig. 2;

Fig. 6 is an another specific embodiment synoptic diagram of the present utility model;

Fig. 7 is that the light source of the projected image reading device of use now is provided with synoptic diagram;

Fig. 8 is the sectional view of being got along the P-P line of Fig. 5;

Referring to each figure, the utility model mainly is to set up separately alternately being read thing 30 required light supply apparatuses 10, utilize the mutual linking of these staggered light supply apparatus 10 throw lights that set up separately, intactly be reflected on this reflector group 40 being read the image that is read zone 31 on the thing 30 along the reflected ray 41 that is read 40 of zone 31 and this reflector group, via this reflector group 40 image reflection to camera lens 60 is read for reader 50, the image that maybe will be read zone 31 intactly directly reflexes on the camera lens 60 along reflected ray 41 and reads for reader again.

Referring to Fig. 1-Fig. 3, this light supply apparatus 10 is by plural at least fluorescent tube 11,12 form, wherein fluorescent tube 11 and reflected ray 41 are located at a side of reflected ray 41 separated by a distancely, and by being read regional 31 mid-length places to an end horizontal-extending that is read regional 31 length directions, fluorescent tube 12 then is located at the opposite side of reflected ray 41 separated by a distancely with reflected ray 41, and along being read regional 31 mid-length positions to this other end horizontal-extending that is read regional 31 length (when these two above fluorescent tubes are provided with two, extend to two ends by being read nearly middle place, zone, when three tubes like this are provided with, then for to extend to two ends alternately from being read zone length nearly 1/3 ...), can contain the length range that is read zone 31 mutually so that fluorescent tube 11 is incident upon the light that is read zone 31 respectively with fluorescent tube 12 with being connected, and the image that is read on regional 31 length is reflexed on the catoptron 30 along reflected ray 41 jointly.Good for the quality that projected image is read, on fluorescent tube 11,12, also can be provided with and corresponding at least two bearings 21,22 of fluorescent tube 11,12 quantity, make the light of fluorescent tube 11,12 projections can suitably be adjusted to good cohesive position.

Referring to Fig. 3, Fig. 4, Fig. 5, bearing 21,22 are and have a hollow bulb 214 respectively, 224 hollow strip, be respectively applied for for fluorescent tube 11,12 levels are placed in this hollow bulb 214, in 224, and at this hollow bulb 214,224 two ends are respectively equipped with an end support portion 215,225, make fluorescent tube 11,12 can firmly be fixed on bearing 21 respectively, on 22, simultaneously, bearing 21, be concaved with a breach 211 on 22 respectively, 221, this breach 211,221 to be read the mode in zone 31 up, by this fluorescent tube 11,12 1 ends extend horizontally to fluorescent tube 11 along its length, 12 the other end makes fluorescent tube 11,12 throw light can this breach 211,221 be incident upon be read the zone 31 on.For making the other end of fluorescent tube 11,12, the throw light of fluorescent tube 11,12 can be strengthened more, also can a reflecting piece 216,226 be set respectively on hollow bulb 214,224, read quality with enhancing.

This bearing 21, convex with a plate body 212 on 22 the end face respectively, 222, wherein plate body 212 is to be provided with along bearing 21 length direction extension modes, and on this plate body 212, be provided with some adjustment hole 213, this some adjustment hole 213 can be and be read the slotted hole that regional 31 length directions are parallel to each other and extend, be used for fixing bearing 21 and fluorescent tube 11, and can make bearing 21 make suitably to move (length direction and about all can suitably move), to obtain the adjustment of fluorescent tube 11 ray cast positions, plate body 222 then is provided with along bearing 22 length direction extension modes, also on this plate body 222, be provided with simultaneously if in be read that regional 31 length directions are parallel to each other and along adjustment hole 223 that bearing 22 length directions extend, be used for fixing bearing 22 and fluorescent tube 12, and it is mobile that bearing 22 is adjusted, so that adjust the throw light position of fluorescent tube 12.Because of the adjustment that can relatively move of the position of bearing 21,22, the fluorescent tube 11 that makes interlaced setting is incident upon the illumination that is read the light joining place on the zone 31 and can be consistent with 12, reads quality to obtain good projected image.

Because the light supply apparatus that the utility model adopts plural at least fluorescent tube to form is arranged on the both sides that are read the reflected ray between zone and the reflector group respectively alternately, the light that this at least two above fluorescent tubes are throwed is connected mutually with continuing contains the length range that is read the zone, the image that intactly will be read the zone reflexes in the reader via reflector group, as long as so utilize caliber less, the short fluorescent tube of length is crisscross arranged, just can read large-sized image, and be not subjected to the fluorescent tube length restriction, and can save and use the required height space of big caliber fluorescent tube, the reading device overall volume is dwindled and realize miniaturization.

Another embodiment referring to Fig. 6, it is respectively with the bearing 21a, the 22a bearing that are supported in each lamp tube ends with two above fluorescent tubes 11,12, this bearing 21a, 22a can be convexly equipped with plate body 212a, a 222a respectively by two ends respectively, if be respectively equipped with on this plate body 212a, 222a simultaneously in adjusting hole 213a, 223a, the adjustment that makes these two above fluorescent tubes 11,12 also can do the ray cast position is moved and is fixing.

Claims (7)

1, a kind of light supply apparatus that reads projected image, can be read the regional reflex line along this and be projected to and read in the district being read the image that is read the zone on the thing, wherein light supply apparatus includes fluorescent tube, bearing, it is characterized in that: above-mentioned fluorescent tube has at least more than two, be divided into the both sides of above-mentioned reflected ray alternately with the be separated by mode of suitable distance of above-mentioned reflected ray, and be read by above-mentioned that the place is used to make projection ray to contain the whole length range that this is read the zone to this both sides horizontal-extending that is read the length direction in zone in the middle of the zone length respectively; Above-mentioned lamp socket has two at least, is provided with in corresponding above-mentioned plural fluorescent tube quantity mode, is used for these fluorescent tubes of bearing, makes the light of above-mentioned plural at least fluorescent tube can be projeced into this and reads on the zone.

2, the light supply apparatus that reads projected image as claimed in claim 1 is characterized in that: above-mentioned plural at least bearing convexes with a plate body that is used for fixing respectively this plural at least fluorescent tube respectively.

3, the light supply apparatus that reads projected image as claimed in claim 2, it is characterized in that: above-mentioned plate body is provided with several and can be used for adjusting this plural at least fluorescent tube light, make it to be projeced into the adjustment hole that is read regional location, this plural at least fluorescent tube being incident upon be read the light in zone to be continuity and illumination consistent is purpose.

4, the light supply apparatus that reads projected image as claimed in claim 3 is characterized in that: wherein several are adjusted holes and can be with above-mentioned and be read the slotted hole that the zone length direction is parallel to each other and extends.

5, the light supply apparatus that reads projected image as claimed in claim 1 is characterized in that: wherein this plural at least bearing can be respectively the mode at the two ends of supporting this plural each fluorescent tube.

6, the light supply apparatus that reads projected image as claimed in claim 1, it is characterized in that: wherein this plural bearing can be the bearing that is the hollow strip, be used for this plural fluorescent tube of bearing, and be arranged with a breach respectively towards being read region direction, the light of this plural fluorescent tube can be incident upon be read on the zone.

7, the light supply apparatus that reads projected image as claimed in claim 6, it is characterized in that: wherein the hollow bulb of this plural bearing can be provided with reflecting piece.

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