JPH0381715A - Microscope - Google Patents

Abstract

PURPOSE:To vary the magnification of a photographing optical system independently of an observation optical system by providing the photographing optical system for photographing an object to be observed at a position different from the optical axis of the observation optical system and preparing a zoom lens in the photographing optical system. CONSTITUTION:The photographing optical system is actuated in the case that photographing is performed by interlocking with the magnification of the observation optical systems 23 and 24. Namely, a controller 62 is actuated by using a start switch, etc., and the photographing zoom lens 41 is moved in accordance with the magnification of the optical systems 23 and 24. In the case that the photographing is performed by not interlocking with the magnification of the optical systems 23 and 24, the photographing is performed regardless of the magnification of the optical systems 23 and 24 by turning off the start switch and manually operating the photographing zoom lens 41. Thus, the magnification of the photographing optical system 25 can be changed independently of the observation optical systems 23 and 24, so that a deseased part 22, for example, is photographed at optional magnification while observing the deseased part 22 at optional magnification.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a microscope equipped with an objective lens facing an object to be observed, and an observation optical system for observing the object through the objective lens. Regarding.

(Prior Art) Surgical microscopes used, for example, in surgeries have been known.

As shown in FIG. 3, this microscope includes an objective lens 2 facing an object to be observed l, an observation optical system 3 for observing the object through the objective lens 2, and an observation optical system 3 for observing the object through the objective lens 2. It is equipped with a photographing optical system 4 for photographing the body 1.

The observation optical system 3 includes a zoom lens 5, an imaging lens 6, and an eyepiece 7, and the photographing optical system 4 includes a zoom lens 5, a half mirror 8, an imaging lens 9, and an image sensor 10.

When the zoom lens 5 is operated, the object 1 to be observed can be observed at a predetermined magnification, and the object 1 to be observed can be photographed at that magnification.

(Problem to be Solved by the Invention) However, in the above-mentioned microscope, since the photographing optical system 4 shares the zoom lens 5 of the observation optical system 3,
Photographing could only be done at the same magnification as the observation optical system 3, which was extremely inconvenient. Furthermore, since the light beam of the observation optical system 3 is divided by the half mirror 8, it becomes impossible to secure a sufficient optical axis for observation and photography, which may cause problems such as the inability to perform proper observation and photography. Ta.

(Object of the invention) This invention was made in view of the above problems, and its purpose is to be able to change the magnification of the photographing optical system independently of the observation optical system, and to An object of the present invention is to provide a microscope capable of securing light l necessary for photographing.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes an objective lens facing an object to be observed, and an object to be observed through the objective lens.
A microscope is equipped with an observation optical system for observing an object, and a photographing optical system for photographing the object is provided at a position different from the optical axis of the observation optical system, and the photographing optical system is equipped with a zoom lens. It is characterized by having a lens.

(Function) According to this invention, since the photographing optical system is provided on an optical axis different from the optical axis of the observation optical system, the magnification of the photographing optical system can be changed independently of the observation optical system. Further, since the light beam of the observation optical system is not divided by a half mirror or the like to form the optical path of the photographing optical system, the optical axis necessary for observation and photographing can be secured.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a schematic layout diagram showing the arrangement of the optical system of a stereomicroscope used in surgery. Observation optical systems 23 and 24, a photographing optical system 25 that photographs the affected area 22, and an illumination optical system 26 that illuminates the affected area 22.
The photographing optical system 25 is provided on an optical axis 25a at a different position from the optical axes 23a and 24a of the observation optical systems 23 and 24.

The observation optical system 23.24 consists of an observation zoom lens 30.31, an imaging lens 32.33, and an eyepiece lens 34.35, and the photographic optical system 25 consists of a mirror 40 and a photographic zoom lens 4.
The illumination optical system 26 consists of a mirror 50, a condenser lens 51, and an illumination lamp 52. and,
The observation zoom lens 30, 31 and the photographing zoom lens 41 can be zoomed in automatically or manually independently of each other. That is, the magnification of the photographing optical system 25 can be set arbitrarily, regardless of the magnification of the observation optical systems 23 and 24.

FIG. 2 shows each optical system 23, 24 for the objective lens 21.
, 25.26 shows the used luminous flux area, and 11
In FIG. 92, 23b and 24b are observation optical systems 23.
24 is a luminous flux area, 25b is a luminous flux area of the photographing optical system 25,
26b is a luminous flux area of the illumination optical system 26, and optical axes 23a, 24a of each optical system 23.24, 25.26.
, 25a, and 26a are set to be separate from each other and have no common parts.

Further, in FIG. 1, 60 is a potentiometer that detects the moving position of the observation zoom lens 31, 61 is a drive device that drives the photographing zoom lens 41, and 62 is a photographing zoom lens that detects the movement position of the observation zoom lens 31. 41
by moving the observation optical system 23. to adjust the magnification of the photographing optical system 25.
This is an MfM device that changes according to changes in 24.

This is activated when photographing is performed in conjunction with the magnification of the observation optical system 23.24. For example, by turning on a start switch (not shown), the control device 62 is activated, and the observation optical system 23.24 is activated. The photographing zoom lens 41 is moved according to the magnification.

When photographing is not performed in conjunction with the magnification of the observation optical system 23.24, the start switch is turned off and the photographing zoom lens 41 is manually operated.
Photographing can be performed regardless of the magnification of 4.

In this way, the magnification of the photographing optical system 25 is adjusted to the observation optical system 23,
The magnification of 24 can be changed independently, so while observing the affected area 22 at a predetermined magnification, you can also view the affected area 22 at any magnification.
z can be photographed, which is very convenient. Furthermore, since the light beams of the observation optical systems 23 and 24 are not divided by a half mirror, beam splitter, etc. to form the optical path of the photographic optical system 25, it is possible to secure a sufficient optical axis for observation and photographing. Unlike the conventional technology, problems such as not being able to secure a sufficient optical axis for observation and photographing due to the division of the light beam, making it impossible to perform proper observation and photographing, do not occur.

Further, when observing the affected area 22 by connecting a monitor (not shown) to the light receiving element 43 of the photographing optical system 25, even if the size of the light receiving element 43 of the photographing optical system 25 changes, the observation optical system 23. Photographic optical system 2 without changing the magnification of 24
If you change the magnification of 5, you can see the affected area 22 at the same size on the monitor.
can be observed.

Note that although the above embodiment shows a configuration in which the photographing zoom lens 41 is controlled by the control device 62, it is not necessary to provide such a control mechanism.

Further, in the above embodiments, a surgical stereoscopic microscope has been described, but the present invention is not limited to this, and it goes without saying that other microscopes may be used.

(Effects of the Invention) According to the present invention, since the photographing optical system for photographing the object to be observed is provided on a halo different from the optical axis of the observation optical system, and this photographing optical system is equipped with a zoom lens, The magnification of the photographing optical system can be changed independently of the observation optical system.
Further, since the light beam of the observation optical system is not divided by a half mirror or the like to form the optical path of the photographing optical system, it is possible to secure the light l necessary for observation and photographing.

Furthermore, when observing an object by connecting a monitor to the light receiving element of the photographing optical system 25, even if the size of the light receiving element of the photographing optical system changes, the photographing optical system can be used without changing the magnification of the observing optical system. By changing the magnification, you can observe the object at the same size on the monitor.

[Brief explanation of drawings]

Fig. 1 is a schematic layout diagram showing the arrangement of the optical system of the stereomicroscope according to the present invention, Fig. 2 is an explanatory diagram showing the luminous flux area of each optical system with respect to the objective lens, and Fig. 3 is a diagram showing the arrangement of the optical system of the stereomicroscope according to the present invention. FIG. 2 is an optical layout diagram showing the configuration of a microscope. 21... Objective lens 22... Affected area (object to be observed) 23, 24... Observation optical system 25... Photographing optical system 41... Zoom lens Fig. 2 Fig. 5a bO Fig.

Claims (1)

[Scope of Claims] A microscope comprising an objective lens facing an object to be observed, and an observation optical system for observing the object through the objective lens, comprising: a position different from the optical axis of the observation optical system; A microscope characterized in that a photographing optical system is provided for photographing the object to be observed, and the photographing optical system is equipped with a zoom lens.