CN201021969Y

CN201021969Y - Projection and shoot switching device

Info

Publication number: CN201021969Y
Application number: CNU2007201191980U
Authority: CN
Inventors: 潘政民; 狄建林; 陆圣
Original assignee: AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Optoelectronic Changzhou Co Ltd
Priority date: 2007-03-28
Filing date: 2007-03-28
Publication date: 2008-02-13
Anticipated expiration: 2017-03-28

Abstract

The utility model discloses a projection and videography switching system, comprising a common camera lens of projection and videography, a projection illuminating system and sensitized components. Wherein the projection and videography switching system also comprises a prism attachment provided with a prism capable of revolving to change the light path between a first position and a second position, the prism is arranged in the light path of the projection illuminating system and sensitized components. When the prism is on the first position, two mirror faces of the prism are respectively plumb in the face of the projection illuminating system and the common lens, when the prism is on the first position, two mirror faces of the prism are respectively plumb in the face of sensitized components and the common lens. According to rotating the prism in the light path, the switch between the projection and videography of the projection and videography switching system of the utility model is realized, and the location precision of the revolving prism is relatively high.

Description

Projection and shooting switching device shifter

[technical field]

The utility model relates to a kind of projection and shooting switching device shifter.

[background technology]

In recent years, portable digital equipment such as portable digital-code projector, Digital Video, mobile phone, PDA more and more is subjected to people's favor with advantages such as its volume are little, easy to use, be easy to carry.But these portable digital equipments are of a great variety, and each product can only be realized a certain specific function, if realize multiple function, just must carry a plurality of different equipment, so, cause the inconvenience of carrying, managing on the contrary, can not embody the advantage of portable equipment.

Therefore, be necessary every function of portable equipment integrated as far as possible, so, proposed projector is integrated mutually with video camera, or projector and video camera are integrated in the scheme of mobile terminal devices such as mobile phone or PDA, after this scheme proposes, the handoff technique of projector and video camera, very important just seems.

U.S. Patent Application Publication proposes the technical method that a kind of projector and video camera switch mutually for No. 20020176015, as shown in Figure 1, it mainly is to utilize a rotatable catoptron 108 to realize, when projection, catoptron 108 rotates a certain angle, in projecting light path, play the effect of the light of turning back, the illumination that light source 106 sends is on display device 105, behind adjustment lens 109, pass through the reflection of described catoptron 108 again, allow light arrive on projection and the shooting sharing lens 102, picture is cast out; In when shooting, described catoptron 108 rotates to does not interfere shooting light path place (as dotted line position among Fig. 1), inoperative in the shooting light path, and the light of outside scene is by behind projection and the shooting sharing lens 102, directly with Scenery Imaging on photo-sensitive cell 110.

The bearing accuracy of catoptron 108 rotational structures is relatively poor in this technology, in case deviation has appearred in the anglec of rotation, will produce very big influence to the quality of projection and shooting.

[utility model content]

The technical matters of the required solution of the utility model is to provide higher projection of a kind of bearing accuracy and shooting switching device shifter.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of projection and shooting switching device shifter are provided, comprise shooting and projection sharing lens, projecting illumination system and photographic photosensitive element; Wherein, described projection and shooting switching device shifter also comprise a prism apparatus, described prism apparatus has the prism that can rotate with the change light path between first, second position, described prism is positioned among the light path of projecting illumination system and photographic photosensitive element, when prism is in primary importance, wherein two minute surfaces of prism are respectively over against projecting illumination system and sharing lens, and when prism was in the second place, wherein two minute surfaces of prism were respectively over against photographic photosensitive element and sharing lens.

The prism of described projection and shooting switching device shifter is the isosceles right triangle body, and wherein a prism square face is over against projecting illumination system or photographic photosensitive element, and another right angle minute surface is over against sharing lens, and prism is that the axle center is rotated with the center of bottom surface.

The prism apparatus of described projection and shooting switching device shifter has gear train, described gear train comprises a swing pinion, a reduction gear and a motor apparatus, described motor apparatus is connected with reduction gear, described reduction gear is connected with swing pinion, and described swing pinion is connected with prism.

The motor apparatus of described projection and shooting switching device shifter is rotated by processing circuit controls.

The projecting illumination system of described projection and shooting switching device shifter and camera photosensitive device are placed for the center opposing parallel, sharing lens is vertical respectively with the center of projecting illumination system and photographic photosensitive element, and described prism revolves from primary importance and turn 90 degrees the arrival second place.

The projecting illumination system of described projection and shooting switching device shifter comprises light source, shaping lens and display device, and described display device and light source lay respectively at the front and back of shaping lens.

The as a whole module of projecting illumination system of described projection and shooting switching device shifter.

Compared with prior art, the utility model projection and the rotation of shooting switching device shifter by prism realize making a video recording, the mutual switching of projection, do not need mobile projector illuminator and photographic sensitive device, do not need to dismantle device wherein yet, and prism is positioned among the light path all the time, do not need to shift out light path, the bearing accuracy of prism rotation is higher.

[description of drawings]

Fig. 1 is the synoptic diagram of prior art projection and shooting switching device shifter.

Fig. 2 is the principle sketch of the utility model one preferred embodiment.

Fig. 3 is a structural representation embodiment illustrated in fig. 2.

[embodiment]

In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also Fig. 2 and Fig. 3, it is a preferred embodiment of the utility model projection and shooting switching device shifter, it is installed on the portable set body 1, comprises shooting and projection sharing lens 2, prism apparatus 3, projecting illumination system 4, photographic photosensitive element 5 and treatment circuit 6.

Described projecting illumination system 4 is staggered relatively with photographic photosensitive element 5, prism apparatus 3 has prism 30, described prism 30 is positioned among the light path of projecting illumination system 4 and photographic photosensitive element 5, and rotatable, projecting illumination system 4 is relevant with prism 30 rotatable angles with the relative position of photographic photosensitive element 5.

Consider the compactness and the simplicity of structural entity, in the present embodiment, projecting illumination system 4 is placed for the center opposing parallel with camera photosensitive device 4, and sharing lens 2 is vertical respectively with the center of projecting illumination system 4 and photographic photosensitive element 5.Prism 30 is an isosceles right triangle body total reflection prism, can use comparatively conventional optical material such as BK7 to make.When prism 30 was in primary importance (as the solid line position among Fig. 3), wherein a prism square face was over against projecting illumination system 4, and another right angle minute surface can be realized projecting function over against sharing lens 2; When prism 30 was in the second place (as the dotted line position among Fig. 3), wherein a prism square face was over against photographic photosensitive element 5, and another right angle minute surface can be realized camera function over against sharing lens 2.In the present embodiment, prism 30 promptly arrives the second place with the bottom center for the axle center dextrorotation turn 90 degrees from primary importance.

Change between above-mentioned first, second position for making things convenient for prism 30, prism apparatus 3 of the present utility model also has a gear train, described gear train comprises a swing pinion 31, a reduction gear 32 and a motor apparatus 33, wherein, motor apparatus 33 is connected with reduction gear 32, reduction gear 32 is connected with swing pinion 31, and swing pinion 31 is connected with prism 30.Treatment circuit 6 controllable motor devices 33 rotate by reduction gear 32 driven rotary gears 31, and then drive prism 30 rotations.

Described projecting illumination system 4 comprises light source 40, shaping lens 41 and display device 42, and wherein, display device 42 and light source 40 lay respectively at the front and back of shaping lens 41.Described light source 40 can use LED (Light Emitting Diode), LD light sources such as (Laser Diode), also projecting illumination system 4 can be made the module of an integral body.

When portable equipment need be realized projecting function, motor apparatus 33 in the treatment circuit 6 control prism apparatus 3 and reduction gear 32 work, 31 rotations of driven rotary gear, thereby drive prism 30 and rotate to primary importance, at this moment, one of them right angle minute surface 30 of prism 30 is aimed at sharing lens 2, another right angle minute surface 30 is aimed at display device 42 places of projecting illumination system 4, at this moment, prism 30 projecting light path that turns back, treatment circuit 6 makes light source 40 and display device 42 work simultaneously, and light source 40 emits beam by behind the shaping lens 41 whole bundles, shines on the display device 42, reflex on the sharing lens 2 through prism 30 again, like this, sharing lens 2 just can project the picture signal on the display device 42 on the projection screen 7, thereby has realized the function of projection; When portable equipment need be realized camera function, motor apparatus 33 in the treatment circuit 6 control prism apparatus 3 and reduction gear 32 work, 31 rotations of driven rotary gear, thereby drive prism 30 and rotate to the second place, at this moment, one of them right angle mirror alignment sharing lens 2 of prism 30, another mirror alignment photographic photosensitive element 5 places, right angle, treatment circuit 6 makes photographic photosensitive element 5 work simultaneously, at this moment, prism 30 light path of photography of turning back, information on the scenery face 8 reflexes on the photographic photosensitive element 5, like this through prism 30 by behind the sharing lens 2 again, just with Scenery Imaging at last photographic photosensitive element 5, thereby realized camera function.

The utility model projection and shooting switching device shifter can be applicable to have on the portable equipment of projection and camera function, prism 30 in the prism apparatus 3 is rotatable, control by treatment circuit 6, make prism 30 rotations, thereby the change light path, when projection, treatment circuit 6 makes projection light source 40 and display device 42 work, sharing lens 2 is aimed at display device 42 in the optical projection system by prism 30, and display device 42 is by this sharing lens 1 projection frame out signal.When shooting, treatment circuit 6 makes prism 30 rotate, and makes 4 work of photographic sensitive element, and sharing lens 2 is aimed at photographic sensitive devices 4 by prism 30, sharing lens 1 images in outside picture on the photo-sensitive cell 4, realizes the mutual switching of projection and shooting thus.

Compared to existing technology, the utility model projection and the rotation of shooting switching device shifter by prism 30 realize making a video recording, the mutual switching of projection, do not need mobile projector illuminator 4 or photographic sensitive device 4, do not need to dismantle device wherein yet, and the utility model is to use the rotation of prism 30 to change light path, the catoptron that uses in the prior art changes light path relatively, and the prism 30 in the utility model is positioned among the light path all the time, does not need to shift out light path; The bearing accuracy of prism 30 rotations is higher than the positioning of rotating precision of monolithic catoptron; It is lower that the required assembly precision of prism 30 is installed, when the position of rotation that the position of prism 30 or prism 30 promptly be installed has small skew with the position that need reach, optical path change is less, influence to imaging or projection is less, and if catoptron, light path just has bigger variation, and is bigger to the influence of imaging or projection.Therefore, the utility model characteristics of having adapted to portable equipment miniaturization, precision height, being convenient to operate.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. a projection and the switching device shifter of making a video recording comprise shooting and projection sharing lens, projecting illumination system and photographic photosensitive element; It is characterized in that: described projection and shooting switching device shifter also comprise a prism apparatus, described prism apparatus has the prism that can rotate with the change light path between first, second position, described prism is positioned among the light path of projecting illumination system and photographic photosensitive element, when prism is in primary importance, wherein two minute surfaces of prism are respectively over against projecting illumination system and sharing lens, when prism was in the second place, wherein two minute surfaces of prism were respectively over against photographic photosensitive element and sharing lens.

2. projection as claimed in claim 1 and shooting switching device shifter, it is characterized in that: described prism is the isosceles right triangle body, wherein a prism square face is over against projecting illumination system or photographic photosensitive element, and another right angle minute surface is over against sharing lens, and prism is that the axle center is rotated with the center of bottom surface.

3. projection as claimed in claim 1 and shooting switching device shifter, it is characterized in that: described prism apparatus has gear train, described gear train comprises a swing pinion, a reduction gear and a motor apparatus, described motor apparatus is connected with reduction gear, described reduction gear is connected with swing pinion, and described swing pinion is connected with prism.

4. projection as claimed in claim 3 and shooting switching device shifter, it is characterized in that: described motor apparatus is rotated by processing circuit controls.

5. as claim 1,2 or 3 described projections and shooting switching device shifter, it is characterized in that: described projecting illumination system and camera photosensitive device are placed for the center opposing parallel, sharing lens is vertical respectively with the center of projecting illumination system and photographic photosensitive element, and described prism revolves from primary importance and turn 90 degrees the arrival second place.

6. projection as claimed in claim 1 and shooting switching device shifter, it is characterized in that: described projecting illumination system comprises light source, shaping lens and display device, described display device and light source lay respectively at the front and back of shaping lens.

7. projection as claimed in claim 6 and shooting switching device shifter is characterized in that: the module that described projecting illumination system is as a whole.