JP2012058740A - Camera with built-in projector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a camera compact by devising an arrangement for a camera unit and a projector module.SOLUTION: A projector module 30 and a camera unit 20 are disposed toward a right side of a camera body 100, as shown in the figure, in a state that respective optical axes 20X and 30X in a longitudinal direction are in parallel to each other. A battery chamber 10 is disposed on a left side of the camera body 100. In addition, a light-emitting unit 51 of an flash device is disposed at a position corresponding to on one side of the camera unit 20, above the projector module 30.

Description

  The present invention relates to a camera provided with a projector module.

  A digital camera incorporating a projector module is known (for example, see Patent Document 1).

Japanese Patent Laid-Open No. 2002-369050

  In the case of a camera with a built-in projector, the camera must be enlarged unless the arrangement of the camera unit and the projector module is devised.

A camera with a built-in projector according to the present invention includes a camera unit having a photographing component including an optical system, and a projector module having a component for projecting an image including an optical system, and includes a longitudinal optical axis of the camera unit and a projector. The camera unit and the projector module are arranged in a direction perpendicular to the longitudinal direction so that the optical axis in the longitudinal direction of the module is substantially parallel to the camera body.
You may arrange | position a camera unit and a projector module so that the optical axis of a longitudinal direction may be substantially orthogonal to the longitudinal direction of a camera main body. In this case, the battery chamber, the projector module, and the camera unit may be arranged in this order from one end side in the longitudinal direction of the camera body. Or you may arrange | position in order of a battery chamber, a camera unit, and a projector module.
The light emitting unit of the flash device may be disposed at a position adjacent to the camera unit in the direction perpendicular to the longitudinal direction while the projector module is adjacent to the longitudinal direction.

  According to the present invention, the size of the camera can be reduced by devising the arrangement of the camera unit and the projector module.

The figure which looked at the internal structure of the digital camera with a built-in projector in the first embodiment from the front. II-II sectional view taken on the line of FIG. The figure which expands and shows the projector part of FIG. The figure which looked at the internal structure of the digital camera with a built-in projector in 2nd Embodiment from the front.

-First embodiment-
A first embodiment when the present invention is applied to a projector built-in digital camera will be described with reference to FIGS.
FIG. 1 is a front view of the internal structure of a digital camera according to this embodiment, and FIG. 2 is a sectional view taken along the line II-II. The camera body 100 has a substantially rectangular shape when viewed from the front, and a plurality of operation buttons 1 are provided on the upper surface thereof. Inside the camera body 100, the battery chamber 10 is disposed on the left side, and the camera unit 20 is disposed on the right side, and the projector module 30 is disposed therebetween. The battery chamber 10 is loaded with a power battery from the bottom of the camera, for example.

The camera unit 20 includes a bending type imaging optical system 21, a lens barrier 22, an imaging unit 23, and the like. The photographing optical system 21 incorporates a plurality of lenses, a mirror which is a bending optical system, an optical image blur correction mechanism, and the like. The light flux from the subject enters the objective lens 21a exposed to the front of the camera body, is then bent downward by the mirror, passes through the lens group, and then the imaging unit 2
3 is incident. Reference numeral 21b denotes an image blur correction unit incorporating an optical image blur correction mechanism.

  The lens barrier 22 can be rotated about the axis X by a barrier drive motor 22a (FIG. 2), and can take a protection position that covers the front surface of the objective lens 21a and a retreat position that retreats from the lens 21a. A control circuit (not shown) drives the lens barrier 22 from the protected position to the retracted position in response to the power switch being turned on, and drives the lens barrier 22 to the protected position in response to the power off.

  The imaging unit 23 is provided with an imaging element, an optical filter, and the like. The light beam that has passed through the photographic optical system 21 is received by the image sensor near the bottom of the camera and subjected to photoelectric conversion, and various processes are applied to the photoelectric conversion output to generate image data. The image data is recorded on a memory card loaded in the card slot 40.

Next, the projector module 30 will be described.
As shown in the enlarged view of FIG. 3, the projector module 30 includes a light source 31 such as a high-intensity LED, a condenser lens 32, a polarization beam splitter (hereinafter referred to as PBS) 33, and a reflective liquid crystal panel 34 such as LCOS. The projection lens 35, the mirror 36, and a case 37 for housing them. A transmissive liquid crystal panel may be used.

  The light source 31 and the condensing lens 32 are disposed in the horizontal portion 30B that protrudes in the lateral direction from the location (bending portion 30A) where the PBS 33 is disposed, and the projection lens 35 and the mirror 36 protrude in the vertical direction from the bending portion 30A. Arranged in the vertical portion 30C. Therefore, the case 37 is substantially L-shaped. In the present embodiment, since the projector module 30 is arranged so that the horizontal portion 30B protrudes to the left in FIG. 1, the light source 31 that is a heat source can be as far away as possible from the imaging unit 23, and the influence of the thermal noise on the image can be reduced. It can be minimized.

  A heat radiating block (metal block) 38 is in intimate contact with the light source 31, and heat from the light source 31 is efficiently released to the outside by adhering a part of the heat radiating block 38 to a metal camera outer cover. Can do.

  Using the projector module 30 as described above, desired image data recorded on the memory card can be projected to the outside. The control circuit of the camera sends the image data to the liquid crystal panel 34 via the flexible printed board 39 and displays it. When the light source 31 is turned on in this state, the light source light passes through the condenser lens 32 and the PBS 33 and enters the reflective liquid crystal panel 34. The reflected light image is bent 90 degrees upward by the PBS 33, and the projection lens 35 and the mirror Projected to the front of the camera via 36.

  By the way, in this embodiment, as can be seen from FIG. 1, the camera unit 20 is arranged to extend in the vertical direction. On the other hand, the projector module 30 has a configuration in which the intervals between the condenser lens 32, the PBS 33, and the liquid crystal panel 34 are shortened, and the interval between the PBS 33 and the projection lens 35 is increased to increase the optical path length. It becomes longer than 30B. That is, the projector module 30 is arranged so that the optical axis 30X in the longitudinal direction is parallel to the optical axis 20X in the longitudinal direction of the camera unit 20. As described above, the projector module 30 and the camera unit 20 are arranged close to the right side of the camera body 100 in the state where the optical axes 20X and 30X are parallel to each other, so that the battery chamber 10 having a sufficiently large size is provided on the left side of the camera body 100. Can be secured, and the camera does not need to be enlarged more than necessary.

A light emitting unit 51 of the flash device is disposed above the projector module 30 and on the side of the camera unit 20. Illumination light from the light emitting unit 51 is irradiated forward from an irradiation window provided on the front surface of the camera body. As described above, by providing the light emitting unit 51 in the space formed by the projector module 30 and the camera unit 20, the space utilization efficiency can be improved, and the light emitting window can be disposed close to the side of the lens window, and lighting Also convenient above.

  Further, the capacitor 52 for storing the electric charge for flash emission is disposed in a space formed by the horizontal portion 30B and the vertical portion 30C of the projector module 30, and the space can be effectively used in this respect. Furthermore, since the light emitting unit 51 and the capacitor 52 can be disposed close to each other, it is advantageous in terms of routing the wiring between the two.

In the figure, reference numeral 53 denotes a tripod mount provided below the projector module 30, 54
Is a terminal for connecting an external device, 55 is a liquid crystal monitor for displaying an image or the like externally, and 56 is a main board of the camera.

-Second Embodiment-
A second embodiment of the present invention will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the component similar to FIGS. 1-3, and a different point is demonstrated below.
Contrary to the above, the projector module 30A according to the present embodiment has a longer interval between the PBS 33 and the liquid crystal panel 34 and a shorter interval between the PBS 33 and the projection lens 35, and has a substantially T-shape as a whole. . The projector module 30A is disposed at the right end of the camera body as shown in the figure, and an irradiation window is provided on the right side of the body. Thereby, the transmitted light of the projection lens 35 is projected rightward through the transparent protective plate 39 fitted in the irradiation window. The camera unit 20 is disposed between the projector module 30 </ b> A and the battery chamber 10. Reference numeral 57 denotes an AF auxiliary light emitting unit.

  Also in this embodiment, since the projector module 30A and the camera unit 20 are arranged in a state where the optical axes 20X and 30X are parallel to each other, the same effects as described above can be obtained.

DESCRIPTION OF SYMBOLS 10 Battery chamber 20 Camera unit 20X The optical axis of the camera unit longitudinal direction 21 Imaging optical system 23 Imaging part 30 Projector module 30X The optical axis of the projector module longitudinal direction 31 Light source 33 Polarizing beam splitter 34 Reflective liquid crystal panel 35 Projection lens 51 Light emission Part 52 Capacitor 100 Camera body

In general, since the light source of the projector module generates a large amount of heat, depending on the position of the projector module, a large amount of heat is transmitted to the user's hand holding the outer cover of the camera, and the user may feel uncomfortable .

A camera with a built-in projector according to the present invention includes a camera unit that includes a photographing part including an optical system , a projector module that includes an image projecting part including an optical system and a light source, a battery chamber that houses a power battery, A heat dissipation block that adheres closely to the projector module and the outer cover and releases the heat of the light source to the outside, and is arranged in the order of the battery chamber, the projector module, and the camera unit from one end in the longitudinal direction of the camera body. .

According to the present invention, since the battery chamber, the projector module, and the camera unit are arranged in this order from one end side in the longitudinal direction of the camera body, the user can arrange the battery chamber or the camera unit in the camera body (or both). ) In the vicinity. In other words, since the user's hand holding the camera is hardly affected by the position where the projector module is disposed, the heat of the light source of the projector module becomes difficult to be transmitted to the user's hand, and the user feels uncomfortable due to heat. This can be suppressed .

Claims (5)

A camera unit containing a photographing part including an optical system;
And a projector module containing image projection parts including an optical system,
The camera unit and the projector module are arranged in a direction perpendicular to the longitudinal direction so that the longitudinal optical axis of the camera unit and the longitudinal optical axis of the projector module are substantially parallel to each other. Projector built-in camera.   The camera with a built-in projector according to claim 1, wherein the camera unit and the projector module are arranged so that the optical axis in the longitudinal direction is substantially orthogonal to the longitudinal direction of the camera body. It has a battery compartment that houses the power battery,
The camera with a built-in projector according to claim 2, wherein the battery chamber, the projector module, and the camera unit are arranged in this order from one end side in the longitudinal direction of the camera body. It has a battery compartment that houses the power battery,
3. The projector built-in camera according to claim 2, wherein the battery chamber, the camera unit, and the projector module are arranged in this order from one end side in the longitudinal direction of the camera body.   2. The light emitting unit of the flash device is disposed at a position adjacent to the camera unit in a direction orthogonal to the longitudinal direction, and adjacent to the projector module in the longitudinal direction. The projector built-in camera in any one of -4.

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