JPH0546530B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an optical view finder for observing a direct image from an optical system and an electronic view finder for observing an image from an image sensor, for example, for photographing and observing devices such as electronic cameras and microphotography devices. It is related to the device.

In this type of conventional photographic observation device, the optical viewfinder and electronic viewfinder were separated, making it difficult to directly observe these two images at the same time. This caused the problem that the statue was difficult to see and easily tired. Furthermore, a device equipped only with an electronic viewfinder has the problem of being uneconomical due to its high power consumption.

In view of the above-mentioned problems, the present invention enables two images (a direct image and an image) to be observed individually or simultaneously as necessary from one eyepiece section configured to allow images to be observed with binoculars, Furthermore, we aim to provide a photographing and observation device in which the electronic viewfinder side is turned off when not needed, but this will be explained based on one embodiment shown below. As an example, an example in which the present invention is applied to an electronic camera is shown, in which 21 is an objective lens, 22 is a half mirror, 23 is a solid-state image sensor, 24 is a half mirror, 25 is a mirror, 26 is a screen, 27 is a magnifying glass, 28 is the mirror, 29 is the shutter, 30
31 is a half mirror, 31 is a magnifying glass, and 32 is a display device connected to the solid-state image sensor 23. The light passing through the objective lens 21 is split into two directions by the half mirror 22, one of which is shown on the solid-state image sensor 23. The other is further divided into two by a half mirror 24, one of which is imaged onto a screen 26 via a mirror 25 and observed through a magnifying glass 27, and the other is sequentially divided by a mirror 28 and a half mirror 30. The reflected image is then observed through a magnifying glass 31. Further, an image from a solid-state image sensor 23 is sent to the display device 32, and although the screen is dark because it is not normally in operation, the image can be reproduced by external operation.

Therefore, if the shutter 29 is opened without operating the display device 32, a direct image by the optical system can be observed from the magnifying glass 31, and if the display device 32 is activated and the shutter 29 is closed, the display can be seen from the magnifying glass 31. The image on the device 32 is observed, and by opening the shutter 29 while operating the display device 32, the direct image and the image can be observed from the magnifying glass 31 at the same time.
Particularly in this example, since the image from the display device 32 and the image from the optical system can be compared at the same time, a high-quality image can be taken.

FIG. 2 shows a second embodiment in which the present invention is applied to a microscope, in which reference numeral 33 denotes a recording device 34 having a reproduction function, an external device, 35 a selection device, 3
6 and 37 are eyepiece lenses, and objective lens 2
1 is split into two directions by a half mirror 22, one of which is imaged on a solid-state image sensor 23, the other is further split into two by a half mirror 24, and one of which is reflected by a mirror 25. Thereafter, that image is observed through an eyepiece lens 36, and the other image is sequentially reflected by a mirror 28 and a half mirror 30, and the image is observed through an eyepiece lens 37. In addition, the image formed on the solid-state image sensor 23 is converted into an electrical signal and directly sent to the selection device 35 or recorded on the recording device 33, and then transmitted from the solid-state image sensor 23, the recording device 33, and the external device 34. The signal is selected by the control signal in the selection device 35 and reproduced on the display device 32, and its image is observed through the eyepiece lens 37. Therefore, if the operations of the display device 32 and the shutter 29 are controlled in the same manner as in the first embodiment, the display device 3
The image obtained by 2 and the image obtained by the optical system can be observed individually or simultaneously as necessary. In particular, this example has an unprecedented observation function that allows observation while simultaneously comparing a current image and a past image, and observation while viewing data from the external device 34.

As described above, in the photographing and observing apparatus according to the present invention, the optical path from the photographing objective lens is divided into two eyepieces, and the image can be observed with both eyes. It is easy to see, and therefore, it is possible to reduce the annoyance and eye fatigue caused by observing with one eye. Since the optical image produced by the optical system and the electronic image produced by the display device can be displayed separately or simultaneously on these two eyepiece optical paths as necessary, it is possible to obtain excellent observation functions and to take high-quality images. Furthermore, when an optical image and an electronic image are displayed simultaneously, the optical image has better resolution than the electronic image,
A composite image with an electronic image adjusted to better brightness than an optical image is transmitted to the brain, so it is more accurate than an electronic image alone and brighter than an optical image alone, making the best of both worlds. It can be recognized by the observer as an image. Furthermore, when the electronic image is not required, observation using the optical image can be performed even when the power is turned off, so the field of view is not obstructed and power consumption can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an optical system of one embodiment of a photographing and observing apparatus according to the present invention, and FIG. 2 is a diagram showing an optical system of a second embodiment. 21... Objective lens, 22, 24, 30... Half mirror, 23... Solid-state image sensor, 25, 28
... Mirror, 27, 31 ... Loupe, 29 ... Shutter, 32 ... Display device, 33 ...
Recording device, 37, 36...eyepiece.

Claims (1)

[Claims] 1. A photographing objective lens, a first optical path dividing means for dividing an optical path from the photographing objective lens, and an image sensor provided on one optical path divided by the first optical path dividing means. , an image display means for converting an image received by the image sensor into an image signal and displaying information including the image on the optical path; and an image display means provided on the other optical path divided by the first optical path dividing means. a second optical path dividing means for further dividing the optical path into a first optical path and a second optical path, a first eyepiece provided on the first optical path, and the image display means. an optical path combining means for combining the optical path projected by the split second optical path with the divided second optical path; a second eyepiece provided on the optical path combined by the optical path combining means; A photographic observation device consisting of a light shielding plate installed on the road.