CN201035300Y - Projection and camera switching device - Google Patents

Abstract

The utility model provides a projection and camera switching device, which includes a camera and projection shared lens device, a projection lighting system and a photosensitive device; wherein, the camera and projection shared lens device has the ability to move between the first and second positions The camera and projection shared lens, when the shared lens is in the first position, it faces the projection lighting system; when the shared lens is in the second position, it faces the photosensitive element. The projection and camera switching device of the utility model can realize projection and camera image cutting, without moving the projection lighting system and the photosensitive element, and without disassembling the devices therein, and has a simple structure.

Description

Projection and camera switching device

【Technical field】

The utility model relates to a projection and camera switching device.

【Background technique】

In recent years, portable digital devices such as portable digital projectors, digital cameras, mobile phones, and PDAs have become more and more popular due to their advantages such as small size, easy use, and portability. But these portable digital devices are of a great variety, and each product can only realize a certain specific function. If multiple functions are to be realized, a plurality of different devices must be carried. Convenience does not reflect the advantages of portable devices.

In order to solve this problem, it is necessary to integrate various functions of the portable device as much as possible. Therefore, a scheme of integrating the projector and the camera with each other, or integrating the projector and the camera with a mobile terminal device such as a mobile phone or a PDA has been proposed. After this proposal was proposed, the switching technology of the projector and the camera became very important.

Japanese Patent Laid-Open No. 2006-135894 proposes a technical method for mutual switching between the projector and the camera, which is realized by using the movement of the photographic photosensitive element: during projection, the photographic photosensitive element moves below the shared lens for projection and photography without affecting the projection optical path At the position, the lens shared by projection and camera moves a certain distance on the optical axis, the light from the light source is reflected by the lens and two reflectors, and shines on the display device, and then projects a picture through the shared lens of projection and camera; The photosensitive element moves to the optical axis of the shared lens for projection and photography, and the outside scenery is imaged on the photosensitive element through the shared lens for projection and photography. In this technology, it is necessary to move the photographic photosensitive element, and the projection lighting system uses two reflectors, which makes the system more complicated and the cost is higher.

Therefore, how to provide a projection and camera switching technology, which can make portable devices with projection and camera functions miniaturized, low cost, easy to manufacture, and easy to operate is an urgent problem to be solved at present.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a projection and camera switching device, which does not need to move the projection lighting system and the photographic photosensitive element, and does not need to disassemble the devices therein, and has a simple structure and is easy to operate.

In order to solve the above technical problems, the technical proposal of the present utility model is to provide a projection and camera switching device, including a camera and projection shared lens device, a projection lighting system and a photosensitive device; wherein, the camera and projection shared lens device has The camera and projection shared lens that can move between the first and second positions, when the shared lens is in the first position, it faces the projection lighting system; when the shared lens is in the second position, it faces the photosensitive element.

The projection lighting system of the projection and camera switching device forms a certain angle with the photographic photosensitive device, the shared lens rotates between the first and second positions, the shared camera and projection lens device has a transmission mechanism, and the transmission mechanism It includes a rotating gear, a decelerating device and a motor device, the motor device is connected with the decelerating device, the decelerating device is connected with the rotating gear, and the rotating gear is connected with the common lens.

The common lens of the projection and camera switching device rotates around its center as an axis.

The projection lighting system of the projection and camera switching device is at an angle of 90 degrees to the photographic photosensitive device, and the shared lens rotates 90 degrees from the first position to the second position.

The projection lighting system of the projection and camera switching device is placed on the same plane as the photographic photosensitive device, the shared lens moves between the first and second positions, the shared camera and projection lens device has a transmission mechanism, and the The transmission mechanism includes a parallel rack, a deceleration device and a motor device, the motor device is connected with the deceleration device, the deceleration device is connected with the parallel rack, and the parallel rack is connected with the common lens.

The projection lighting system of the projection and camera switching device and the photographic photosensitive device are made in an integral mechanism.

The motor device of the projection and camera switching device is controlled by a processing circuit.

The projection lighting system of the projection and camera switching device includes a light source, a shaping lens and a display device, and the display device and the light source are respectively located at the front and back of the shaping lens.

The projection lighting system of the projection and camera switching device is an integral module.

Compared with the prior art, the projecting and photographing interchangeable device of the present invention realizes mutual switching between photographing and projection by moving the shared lens of photographing and projection, without moving the projection lighting system and photographic photosensitive element, and without dismantling one of them. The device, projection lighting system and camera system are also relatively simple in structure, adapting to the characteristics of miniaturization, low cost and easy operation of portable devices.

【Description of drawings】

Fig. 1 is the schematic diagram of the first embodiment of the utility model.

Fig. 2 is a schematic diagram of Embodiment 1 of the utility model.

Fig. 3 is a schematic diagram of the second embodiment of the utility model.

Fig. 4 is a schematic diagram of the second embodiment of the utility model.

【Detailed ways】

In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Please refer to Figures 1 to 4, which are preferred embodiments of the projection and camera switching device of the present invention, which are installed on the portable device body 1, including a projection lighting system 2, a camera and projection shared lens device 3, and a photosensitive element 4 And processing circuit 5.

The projection lighting system 2 includes a light source 20 , a shaping lens 22 and a display device 24 , and the display device 24 and the light source 20 are respectively located at the front and back of the shaping lens 22 . The light source 20 in the projection lighting system 2 can use light sources such as LED (Light Emitting Diode), LD (Laser Diode), etc., and the projection lighting system 2 can also be made into an integral module.

The camera and projection common lens device 3 includes a common lens 30 and a transmission mechanism.

Please refer to Fig. 1 and Fig. 2, it is embodiment one of the present utility model, and described projection lighting system 2 and photosensitive element 4 are placed at a certain angle, and the common lens 30 in the shared lens device 3 of photographing and projection can be rotated, when Shared lens 30 is in the first position (as shown in Fig. 1 and the solid line position in Fig. 2), and it faces projection lighting system 2, can realize projection function; When shared lens 30 is in the second position (as shown in Fig. 1 and Fig. 2 The dotted line position of ), which is directly facing the photographic photosensitive element 4. Considering the beauty and implementability of the overall structure, the projection lighting system 2 and the photosensitive element 4 are placed at 90 degrees in this embodiment, and the shared lens 30 rotates 90 degrees clockwise from the first position with its center as the axis to reach the second position. Location.

The transmission mechanism includes a rotating gear 31 , a speed reduction device 34 and a motor device 36 . The motor device 36 is connected to the deceleration device 34 , the deceleration device 34 is connected to the rotation gear 31 , and the rotation gear 31 is connected to the common lens 30 . The motor device 36 is controlled by the processing circuit 5 to drive the deceleration device 34 and the rotating gear 31 to rotate the common lens 30 . Above-mentioned drive mode is electric, and the rotation precision of this moment is guaranteed jointly by the control precision of motor device 36 and deceleration device 34 and the structure precision of camera and projection common lens device 3, and its precision is better controlled.

Of course, the utility model can also manually rotate the shared lens 30. During specific implementation, the camera and projection shared lens device 3 can be placed on the edge of the portable device, such as the top, bottom, side, etc. Rotate and move the structural device outside the shared lens 30 by hand to drive the rotating gear 31 to rotate, so that the shared lens 30 can rotate to the required position (at this time, the deceleration device 34 and the motor device 36 do not work). When manually rotating the shared lens 30, a dustproof device needs to be installed to avoid contamination of key components. The rotation accuracy at this time is guaranteed by the structural accuracy of the camera and projection shared lens device 3 and the control accuracy of the operator, and its accuracy is also relatively easy to control.

When the portable device needs to realize the projection function, the processing circuit 5 controls the motor device 36 and the deceleration device 34 in the camera and projection shared lens device 3 to work, and drives the rotating gear 31 to rotate, so that the shared lens 30 rotates to the first position, that is, the projection At the display device 24 of the lighting system 2 , the processing circuit 5 simultaneously enables the light source 20 and the display device 24 to work. At this time, the optical axis of the common lens 30 is perpendicular to the plane of the display device 24 . The light emitted by the light source 20 passes through the whole bundle of the shaping lens 22, and then shines on the display device 24, and the display device 24 projects the picture signal on the projection screen 6 through the shared lens 30, thereby realizing the function of projection; when the portable device needs to realize the camera function At this time, the processing circuit 5 controls the motor device 36 and the deceleration device 34 in the camera and projection shared lens device 3 to work, and drives the rotating gear 31 to rotate to the second position, that is, the photosensitive element 4, and the processing circuit 5 makes the photographic photosensitive element 4 At this time, the optical axis of the shared lens 30 is perpendicular to the plane of the photographic photosensitive element 4, and the information on the scene plane 7 is imaged on the photographic photosensitive element 4 through the shared lens 30, thereby realizing the imaging function.

Please refer to Fig. 3 and Fig. 4, it is the second embodiment of the present utility model, the difference between this embodiment and the above-mentioned first embodiment mainly lies in: in this embodiment, the projection lighting system 2 and the photosensitive element 4 are placed on the same plane, The common lens 30 in the imaging and projection common lens device 3 moves in parallel. During specific implementation, the parallel rack 32 is used to replace the rotating gear 31 in the transmission mechanism, and the motor device 36 drives the parallel rack 32 to translate, so that the shared lens 30 translates from the first position to the second position. The precision of the motor device 36 and the control precision of the deceleration device 34 and the structural precision of the common lens device 3 for imaging and projection are jointly guaranteed.

In the second embodiment, the projection lighting system 2 and the photographic photosensitive element 4 can be made into an integral structure, but it is not limited to this structure, and they can also be separated. The distance that the common lens 30 can move in parallel is related to the horizontal distance between the projection lighting system 2 and the photosensitive element 4 .

When the portable device needs to realize the projection function, the processing circuit 5 controls the motor device 36 and the deceleration device 34 in the camera and projection shared lens device 3 to work, and drives the parallel rack 32 to move in parallel to the first position, that is, the display of the projection lighting system 2 At the device 24 , the processing circuit 5 simultaneously enables the light source 20 and the display device 24 to work. At this time, the optical axis of the common lens 30 is perpendicular to the plane of the display device 24 . The light emitted by the light source 20 passes through the whole bundle of the shaping lens 22, and then shines on the display device 24, and the display device 24 projects the picture signal on the projection screen 6 through the shared lens 30, thereby realizing the function of projection; when the portable device needs to realize the camera function At this time, the processing circuit 5 controls the motor device 36 and the deceleration device 34 in the camera and projection shared lens device 3 to work, and drives the parallel rack 32 to move in parallel to the second position, that is, the photosensitive element 4 places, and the processing circuit 5 makes the photosensitive element 4 work simultaneously. The photosensitive element 4 works, and at this moment, the optical axis of the common lens 30 is perpendicular to the plane of the photographic photosensitive element 4 . The information on the scene plane 7 is imaged on the photosensitive element 4 through the shared lens 30, thereby realizing the camera function.

The projection and camera switching device of the utility model can be applied to portable devices with projection and camera functions. The camera and projection shared lens 30 of this technology can rotate or move in parallel, and the rotation or parallel movement of the shared lens 30 can be controlled by the processing circuit 5 Move, when projecting, the processing circuit 5 makes the projection light source 20 and the display device 24 work, and now the shared lens 30 is aimed at the display device 24 in the projection system, and the display device 24 projects a picture signal through the shared lens 30; The processing circuit 5 makes the shared lens 30 rotate or move in parallel, and makes the photographic photosensitive element 4 work. At this time, the shared lens 30 is aimed at the photographic photosensitive element 4, and the shared lens 30 images the external picture on the photosensitive device 4, thereby Realize the mutual switch between projection and camera.

The relative positions of the display device 24 in the projection system and the photographic photosensitive element 4 are related to the moving mode of the camera and projection common lens 30. If the shared lens 30 moves in parallel, the display device 24 and the photographic photosensitive element 4 in the projection system will 4 is on one plane; if the common lens 30 is rotating and moving, the display device 24 and the photosensitive element 4 in the projection system are at a certain angle, which is related to the rotation angle of the common lens 30.

Compared with the existing technology, the projection and camera switching device of the present invention realizes the mutual switching of camera and projection through the rotation and parallel movement of the camera and projection shared lens 30, without moving the projection lighting system 2 and the photosensitive element 4, There is no need to disassemble the components therein, and the structures of the projection lighting system 2 and the photographic photosensitive element 4 are relatively simple, adapting to the characteristics of miniaturization, low cost and easy operation of portable devices.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (9)

1. a projection and the switching device shifter of making a video recording comprise shooting and projection sharing lens device, projecting illumination system and camera photosensitive device; It is characterized in that: described shooting and projection sharing lens device have the shooting and the projection sharing lens that can move between first, second position, when sharing lens was in primary importance, it was over against projecting illumination system; When sharing lens was in the second place, it was over against photographic photosensitive element.

2. projection as claimed in claim 1 and shooting switching device shifter, it is characterized in that: described projecting illumination system and camera photosensitive device are angled, described sharing lens rotates between first, second position, described shooting and projection sharing lens device have 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 shared camera lens.

3. projection as claimed in claim 2 and shooting switching device shifter, it is characterized in that: described sharing lens is that axis is rotated with its center.

4. projection as claimed in claim 3 and shooting switching device shifter, it is characterized in that: described projecting illumination system becomes 90 angles with the camera photosensitive device, and described sharing lens revolves from primary importance and turn 90 degrees the arrival second place.

5. projection as claimed in claim 1 and shooting switching device shifter, it is characterized in that: described projecting illumination system and camera photosensitive device are placed at grade, the translation between first, second position of described sharing lens, described shooting and projection sharing lens device have gear train, described gear train comprises a parallel rack, a reduction gear and a motor apparatus, described motor apparatus is connected with reduction gear, described reduction gear is connected with parallel rack, and described parallel rack is connected with shared camera lens.

6. projection as claimed in claim 5 and shooting switching device shifter, it is characterized in that: described projecting illumination system and camera photosensitive device are made in the mechanism of an integral body.

7. as claim 2 or 5 described projections and shooting switching device shifter, it is characterized in that: described motor apparatus is by processing circuit controls work.

8. 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.

9. projection as claimed in claim 8 and shooting switching device shifter is characterized in that: the module that described projecting illumination system is as a whole.

Images