Patent Application
20050111087
This application claims priority of German Application No. 103 54 526.9, filed Nov. 21, 2003, the complete disclosure of which is hereby incorporated by reference.
a) Field of the Invention
The invention is directed to an observation device in which a user observes objects or process flows and influences the display of the object or the flow of the process by entering operating commands and control demands. The observation device is outfitted with an operating unit which is spatially separable with respect to the rest of the components of the observation device.
b) Description of the Related Art
Depending on their use and particular application, observation devices, including microscopes, have a plurality of parameters which must be changed, adapted and monitored within the framework of operation and control. For example, in a conventional optical microscope or stereo microscope the adjustment of focus, changes in the scale ratio, change and selection of contrast methods and illumination methods, light regulation, displacement of the object, and the supply of operating voltage are some of the possibilities for optimizing observation. This list is not complete.
In the case of microscopes, it is conventional in the art to operate and control by means of manually actuated rotating knobs, switches, slides etc. which can be arranged at different locations on the microscope. This arrangement is frequently uncomfortable for the user because the operating controls and control elements are often arranged in ergonomically unfavorable positions. When using the microscope continuously for many hours, this is fatiguing and is therefore a noticeable drawback.
While there are also known arrangements which make it possible to operate and control an optical microscope by means of a PC or laptop, a solution of this kind is relatively wasteful with respect to material and time and is therefore not considered, in particular, for training and routine uses. Further, this kind of combination of microscope and control computer takes up a disproportionately large amount of space compared with the microscope by itself.
Therefore, it is the primary object of the invention to further develop an observation device of the type described above in such a way that a simplified and ergonomically favorable operation is made possible for the user.
According to the invention, means for displaying and presetting adjustment values with respect to the device parameters and/or means for displaying images of the object or process flow to be observed are provided at the operating unit.
These display means can preferably be constructed as a visual display or screen, particularly as a graphic display. In another construction, a touch screen can be provided which makes it possible to enter operating commands and control commands by touching the display surface.
Alternatively or in addition to this, the operating unit is outfitted with programmable buttons which serve to enter commands for different parameters depending on the determined function. Further, the operating unit is provided with a programmable joystick which is likewise constructed for entering commands.
A wireless or wire-bound connection can be considered for transmitting the operating commands and control commands from the operating unit to the rest of the device components.
In the latter case, this connection is advantageously constructed as a CAN bus connection. A device may be provided as a mechanical auxiliary device for automatically winding up or unwinding the signal line between the operating unit and the rest of the device units; this has proven useful particularly when the operating unit is moved often from place to place.
Fastening elements are preferably provided at the operating unit and at the base construction of the observation device. These fastening elements cooperate with one another in the manner of a coupling device and are used for mechanically coupling, e.g., the operating unit to the device frame of the observation device if necessary.
When the observation device is a microscope, for example, the operating unit is connected to or can be detached from the microscope body by means of the coupling device. Accordingly, the operating unit can be located on the microscope body in the rest position.
The coupling device advantageously has holding elements for a positively engaging connection of the operating unit to the microscope body. These holding elements can be realized, for example, by means of a dovetail guide which is advisably provided with stops for limiting movability in the guide direction. This prevents the observation device from being separated unintentionally when lifting or moving the observation device or microscope, for example. Apart from a dovetail guide such as this, any other type of positive engagements with mechanical elements engaging one inside the other are, of course, also possible.
Alternatively, the coupling device can be outfitted with holding elements for a frictionally engaging connection of the operating unit to the device body. For example, a surface of the device frame can be magnetized and permanent magnets can be provided on a corresponding surface of the operating unit. In order to achieve an exact fit, additional guide pins engaging in corresponding recesses at the device frame of the microscope can be provided. The permanent magnets can also be constructed as pins.
In order to move into a work position, the operating unit is brought into an ergonomically favorable position for the user by detaching the coupling device from the device body. The operating unit can preferably be detached from the device body without technical auxiliary devices or tools.
When actuating operating controls that are arranged at the operating unit, the control signals are conveyed from the operating unit to the rest of the device components, which can be carried out in a wireless manner by radio or via an infrared interface or by means of wires as was already mentioned.
Wireless transmission is preferably reserved for reproducing signals for light regulation, specimen adjustment, focusing, and changing between operating mode and standby mode. For other signals such as switching the device on and off, a wire-bound connection by means of cables is indispensable.
A plug connection with electrical contacts which also possibly includes a data bus and accordingly enables data transfer between the device components and the operating unit can advantageously be provided particularly for purposes of supplying auxiliary power to the operating unit. The plug connection is constructed as a CAN bus connection in a particularly preferred manner.
Compared to coupling a conventional PC to a microscope body, the solution according to the invention has the important advantage that the microscope can be operated more favorably with respect to ergonomics. Further, there is also the advantage of compactness due to the possibility of arranging the operating unit on the microscope body at least at times.
When the operating unit is outfitted with programmable buttons which serve to call up adjusted device parameters, the user can immediately read off these parameters at the display device which is likewise associated with the operating unit, draw conclusions from the read off device parameters concerning the device parameters to be changed, and preset these device parameters for purposes of adjustment at the microscope by means of the command buttons at the operating unit.
Of course, the input elements at the operating unit need not be constructed as buttons but can also be constructed in any other form suitable for entering commands. For example, a scroll wheel can be provided for changing the display on the operating unit between different device parameters.
In a particular construction, the operating unit can be outfitted with a device for the output of acoustic signals whose volume or frequency depends upon device parameters that are adjusted or are to be preset.
The invention will be described more fully in the following with reference to embodiment examples.
In the drawings:
The operating unit 2 is shown individually in an enlarged view in
Two operator controls can be seen on the operating unit 2, namely, a network switch 3 which switches between a standby mode and operating mode, and a rotating knob 4 for light regulation by which the brightness of the illumination light can be influenced particularly with transmitted light illumination.
Finally,
In this case, an object or a sample can be observed on the operating unit 7 or at the touch screen 8 and observation need not be carried out through the eyepiece of the microscope body 1. Further, the operating unit 7 has specially adapted operating controls for directly presetting or influencing device functions. In addition to the input buttons 10, these are focusing buttons 11, zoom buttons 12, transmitted light regulating buttons 13 and incident light regulating buttons 14.
All of the buttons are provided in pairs because there are two directions in which the adjustments can be changed. The transmitted light regulating buttons 13 and incident light regulating buttons 14 can also be used optionally for navigation with appropriate programming. For example, the sample carrier can be moved relative to the microscope objective by means of these buttons and another section of the sample can accordingly be adjusted for observing on the touch screen 8.
While the foregoing description and drawings represent the present invention, it will be obvious to those skilled in the art that various changes may be made therein without departing from the true spirit and scope of the present invention.
Reference Numbers
| Number | Date | Country | Kind |
|---|---|---|---|
| 103 55 526.9 | Nov 2003 | DE | national |
