The electromotively adjustable focusing system of claim 8, further including an automatic focus means.ġ3. The electromotively adjustable focusing system of claim 8, further including an object stage position indicator connected to the operative connecting means to cancel a coarse focusing adjustment of the microscope when the object stage cannot safely be coarsely adjusted.ġ2.
#Ernst leitz wetzlar microscope 1920a manual#
The electromotively adjustable focusing system of claim 8, wherein the manual control means includes a switch, the switch being selectively opened and closed by the axial movement of the knob in opposite directions, movement of the knob in one direction causing the operative connecting means to generate signals effecting a coarse focusing adjustment of the microscope and movement of the knob in the other direction causing the operative connecting means to generate signals effecting a fine focusing adjustment of the microscope.ġ1. The electromotively adjustable focusing system of claim 8, wherein the electrical signal generating means includes a tacho-generator providing output signals responsive to the direction of rotation of the knob.ġ0. Wherein the manual control means is a knob capable of simultaneous or separate rotation and axial movement, the direction of rotation determining the direction of movement of the object stage and the direction of axial movement of the knob selectively causing a fine or coarse focusing adjustment.ĩ. Means for operatively connecting the electromotive moving means to the electrical signal generating means Means for generating electrical signals, which signals selectively cause movement of the object stage in the desired direction and with the desired speed An electromotively adjustable focusing system for a microscope comprising: The electromotively adjustable focusing system of claim 1, further including means for automatically focusing the microscope, the automatic focusing means being operatively connected to the electrical signals applying means to control the direction and speed of the electromotive moving means.Ĩ. The electromotively adjustable focusing system of claim 1, further including means for indicating the position of the object stage, the indicating means providing a signal that cancels the coarse adjustment signal when the object stage cannot safely be coarsely adjusted.ħ. The electromotively adjustable focusing system of claim 4, wherein the manual control means further includes a switch, the switch being opened or closed in response to the axial movement of the knob to provide respectively to the motor a fine or a coarse adjustment signal.Ħ. Means for applying the selectively generated electrical signals to the electromotive moving means, whereby the microscope is, in response, respectively coarsely or finely focussed, wherein the manual control means is a knob capable of simultaneous or separate rotation and axial movement, the rotation of the knob controlling the direction of movement of the object stage and the axial movement of the knob selectively causing course or fine focusing.ĥ. Means for manually controlling the output of the electrical signal generating means and Means for generating selective electrical signals, such signals causing either coarse or fine adjustment of the microscope Means for electromotively moving the object stage, and thereby, focusing the microscope An electromotively adjustable focusing system, for a microscope comprising:Īn adjustable microscope objective stage The electromotively adjustable focusing system of claim 1, wherein the electromotive moving means is an electric motor.Ĥ.
#Ernst leitz wetzlar microscope 1920a generator#
The electromotively adjustable focusing system of claim 1, wherein the generator comprises a tacho-generator.ģ. Means for applying the selectively generated electrical signals to the electromotive moving means, whereby the microscope is, in response, respectively coarsely or finely focussed.Ģ. Means for manually controlling the output of the generator, said generator producing electrical signals proportional to the degree of movement of said manual control means and
Means for electromotively moving the object stage and, thereby, focusing the microscope Ī generator for generating selective electrical signals, such signals causing either coarse or fine adjustment of the microscope
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