JPH0686303A - Color image pickup device - Google Patents

Abstract

PURPOSE:To correct the deviation of registration due to the attachment of the solid-state image pickup element of a color image pickup device and the aberration and distortion of a lens optical system. CONSTITUTION:This device is constituted of a lens 1, a color resolving optical system for resolving incident light from the lens 1 into the optical images of three colors, R, G and B, optical blocks 23, 24 and 25 composed of a machine element and an optical element capable of magnifying and reducing respective color light resolved by the color resolving optical, system 2 and imaging elements 26, 27 and 28 such as CCD or the like, for instance, for converting the optical images from the optical blocks 23, 24 and 25 to electric signals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to correction of registration shift due to chromatic aberration of an optical system of a color image pickup device.

[0002]

2. Description of the Related Art In a color image pickup apparatus using a plurality of solid-state image pickup elements, signals are read from the solid-state image pickup elements by a driving pulse instead of an electron beam. Therefore, the timing of the driving pulse is controlled. Therefore, it has been devised to correct the registration deviation. FIG. 23 is a block diagram showing a conventional color image pickup apparatus using a plurality of solid-state image pickup elements disclosed in, for example, Japanese Patent Laid-Open No. 52-31617, in which 1 is a lens and 2 is the lens 1 to Color separation optical system for separating incident light of three colors into three colors of R, G and B, 3 and 4 and 5 are MOS type solid state image pickup devices, and 6 is for operating the MOS type solid state image pickup devices 3, 4 and 5. Drive pulse generation circuit for generating drive pulse, 7, 8, 9
Are delay circuits 10, 11, 1 provided between the drive pulse generating circuit 6 and the MOS type solid-state image pickup devices 3, 4, 5, respectively.
Reference numeral 2 is an amplifier for amplifying and waveform-shaping the output signals of the MOS type solid-state image pickup devices 3, 4, 5 respectively, and reference numeral 13 is N for producing an NTSC signal from the signals of the amplifiers 10, 11, 12.
It is a TSC encoder.

Next, the operation will be described with reference to FIGS. 24 and 25. FIG. 24 shows three MOS solid-state image pickup devices 3,
In the example where 4 and 5 are fixed by shifting from the predetermined position,
Considering the MOS type solid-state image sensor 3, the MOS type solid-state image sensor 4 has X4 in the horizontal direction of the screen and Y in the vertical direction of the screen.
4, the MOS type solid-state image sensor 5 is shifted by -X5 in the horizontal direction of the screen and by -Y5 in the vertical direction of the screen. The MOS type solid-state image pickup devices 3, 4 and 5 have a vertical shift register for sequentially disconnecting a switch circuit for selecting a scanning line therein and a switch circuit for sequentially reading a signal of a pixel on the selected scanning line. A horizontal shift register is provided for this purpose. In the normal driving of a MOS type solid-state image pickup device, a vertical start pulse synchronized with a vertical synchronizing signal is added to the vertical shift register and sequentially transferred with two-phase vertical driving pulses, and the horizontal shift register is similarly synchronized with the horizontal synchronizing signal. 2 horizontal start pulse added
Phase horizontal drive pulses are used to sequentially transfer.

Horizontal and vertical start pulses are input to the three MOS type solid-state image pickup devices 3, 4, and 5 by shifting the timing as shown in FIG. 25 by the three delay circuits 7, 8 and 9. TY4 in FIG. 25 is a vertical displacement Y of the two MOS type solid-state imaging devices 3 and 4 shown in FIG.
4 corresponds to the scanning time, and TX4 corresponds to the horizontal positional deviation X4 of the two MOS type solid-state imaging devices 3 and 4 converted into the scanning time. Therefore,
Even though the two MOS solid-state image pickup devices 3 and 4 are physically displaced, the signals obtained at the same time are shifted by shifting the signal reading timing according to the displacement. The position shift is corrected as if there was no. Similarly, for the two MOS solid-state image pickup devices 3 and 5, the signals of the MOS solid-state image pickup device 5 are read only for TY5 and TX5 in FIG. 25, which are scanning times corresponding to the positional deviations Y5 and X5 shown in FIG. The position shift can be corrected by starting the signal reading operation earlier than the reading of the signal from the MOS type solid-state imaging device 3. In this way, by shifting the timings of the horizontal and vertical start pulses input to the MOS type solid-state image pickup devices 3, 4, 5 by the delay circuits 7, 8, 9 respectively, the three MOS type solid-state image pickup devices 3, 4 can be obtained. The physical displacement of 5 can be corrected.

[0005]

Since the registration correction of the conventional color solid-state image pickup device has been performed as described above, the size of the light image formed on each image pickup device is the same (equal magnification). Is only capable of correcting the positional deviation of each image sensor when the horizontal and vertical directions of each image sensor are exactly the same, and each image sensor due to the magnification aberration of the lens which is the main cause of the registration error. There is a problem that correction is extremely difficult when the size of the optical image formed on the image is different.

The present invention has been made in order to solve the above-mentioned problems, and is a practical color solid that can correct registration deviation due to aberration or distortion of a lens optical system regardless of the type of image pickup device. An object is to obtain an imaging device.

[0007]

A color image pickup apparatus according to a first aspect of the present invention is provided with an optical element arranged in front of an image pickup element and mechanical means for applying a force to the optical element.

A color image pickup apparatus according to a second aspect of the present invention is an optical element arranged in front of an image pickup element, mechanical means for applying a force to the optical element, drive means for driving the mechanical means, and A control means for controlling the drive means is provided.

According to a third aspect of the present invention, a color image pickup apparatus has a replaceable image pickup lens containing optical distortion data, an optical element arranged in front of the image pickup element, and a force is applied to the optical element. Mechanical means, drive means for driving the mechanical means, and control means for controlling the drive means are provided.

A color image pickup apparatus according to a fourth aspect of the present invention comprises an optical element arranged in front of an image pickup element, mechanical means for applying a force to the optical element, drive means for driving the mechanical means, and An edge detecting means for detecting an edge of an image from a signal of an image sensor and a control means for controlling the driving means are provided.

According to a fifth aspect of the present invention, in a color image pickup device, an optical element arranged in front of an image pickup element, a heating means for heating the optical element, and the optical element are heated to a predetermined temperature. A control means for controlling the heating means is provided.

A color image pickup apparatus according to a sixth aspect of the present invention includes an optical element arranged in front of the image pickup element, a heating means for heating the optical element, and the heating means according to the zoom position of the image pickup lens. The control means for controlling is provided.

A color image pickup apparatus according to a seventh aspect of the present invention is a replaceable image pickup lens containing optical distortion data, an optical element arranged in front of the image pickup element, and a heating element for heating the optical element. And a control means for controlling the heating means.

A color image pickup device according to an eighth aspect of the present invention detects an edge portion of an image from an optical element arranged in front of an image pickup element, heating means for heating the optical element, and a signal from each image pickup element. An edge portion detecting means for controlling and a control means for controlling the heating means are provided.

[0015]

The color image pickup device according to the first aspect of the present invention is
The optical element arranged in front of the image pickup element is deformed by mechanical means to change the optical characteristics to correct the registration deviation.

In the color image pickup apparatus according to the second aspect of the present invention, the optical element arranged in front of the image pickup element is deformed by the mechanical means to change the optical characteristics and the driving means for driving the mechanical means is controlled. The control means for changing the strength of the force applied to the optical element according to the zoom position of the image pickup lens corrects the deviation of the registration.

In the color image pickup apparatus according to the third aspect of the present invention, the optical element arranged in front of the image pickup element is deformed by mechanical means to change the optical characteristics, and at the same time, the driving means for driving the mechanical means is controlled. The control means changes the strength of the force applied to the optical element in accordance with the data of optical distortion such as magnification aberration obtained from the image pickup lens and the zoom position of the image pickup lens, and corrects the registration deviation. It is a thing.

In a color image pickup apparatus according to a fourth aspect of the present invention, an optical element arranged in front of an image pickup element is deformed by mechanical means to change optical characteristics, and at the same time, drive means for driving the mechanical means is controlled. The control means for changing the strength of the force applied to the optical element so as to correct the deviation of the registration detected by the edge detecting means.

A color image pickup apparatus according to a fifth aspect of the present invention is configured such that an optical element arranged in front of an image pickup element is deformed by a heating means to change optical characteristics and correct misregistration of registration. Is.

In the color image pickup apparatus according to the sixth aspect of the present invention, the optical element arranged in front of the image pickup element is deformed by the heating means to change the optical characteristics, and the control means for controlling the heating means is an image pickup device. The temperature of the optical element is changed according to the zoom position of the lens to correct the registration deviation.

In the color image pickup device according to the seventh aspect of the present invention, the optical element arranged in front of the image pickup element is deformed by the heating means to change the optical characteristics, and the control means for controlling the heating means is an image pickup device. The temperature of the optical element is changed according to the data of optical distortion such as magnification aberration obtained from the lens and the zoom position of the image pickup lens to correct the registration deviation.

In the color image pickup device according to the eighth aspect of the present invention, the optical element arranged in front of the image pickup element is deformed by the heating means to change the optical characteristics, and the control means for controlling the heating means is an edge device. The temperature of the optical element is changed so as to correct the registration deviation detected by the detection means.

[0023]

EXAMPLES Example 1. An embodiment of the first invention of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a lens, 2 is a color separation optical system that decomposes a plurality of light images incident from the image pickup lens 1 into these light images, 23, 24 and 25 are optical blocks including optical elements and mechanical means, 26. Two
Reference numerals 7 and 28 are image pickup devices such as CCDs.

Next, the structure and operation of the optical blocks 23, 24 and 25 will be described with reference to FIGS. 2, 3 and 4. In FIG. 2, reference numeral 30 denotes an optical element made of glass or plastic, or another polymer material, or a transparent material such as a liquid injected into the material, and 31 denotes a screw having a screw structure for compressing and extending the optical element. A member, 32 is a coupling member for coupling the optical element 30 and the screw member 31, and 33 is an outer frame member to which the screw member 31 is attached. The optical element 30, the screw member 31, and the coupling member 32 are configured as shown in FIG. 3, and the optical element 30 is compressed or expanded through the coupling member 32 by rotating the screw member 31. When the optical element 30 is compressed or expanded, the incident light image can be enlarged or reduced by the lens action as shown in FIG. Optical element 30
By adjusting the force applied to, it is possible to obtain magnifications for enlargement and reduction for correcting the registration deviation. For example, as shown in FIG. 5, the optical image incident on the optical block 25 is larger than the optical image incident on the optical block 24, and the optical image incident on the optical block 23 is larger than that on the optical block 2.
Consider a case where there is a registration shift due to a magnification aberration that is smaller than the light image incident on the light source 4. At this time, the optical element 30 of the optical block 25 is compressed, and the incident light image is reduced, and the enlargement of the light image due to the magnification aberration is corrected. The optical element 30 of the optical block 23 is expanded to enlarge the incident light image and correct the reduction of the light image due to magnification aberration.

Example 2. An embodiment of the second invention of the present invention will be described below. In FIG. 6, 40, 41 and 42 are
An optical block including an optical element, a cam member, a motor, etc.,
Reference numeral 50 is a sum position detection circuit for knowing the zoom position of the image pickup lens 1, 51 is a microcomputer for determining a correction amount according to the data obtained by the zoom position detection circuit 50, 52
Is a motor drive circuit for driving the motors in the optical blocks 40, 41, 42. FIG. 7 is a view showing the arrangement of the optical blocks 40, 41, 42. In FIG. 7, reference numeral 45 is a cam member, 46 is a fixed ring in which one end of the cam member is rotatably stopped, and 47 is a rotation member. An outer peripheral ring 48, and the cam member 45 and the outer peripheral ring 4.
A connecting member for connecting 7 and 49 is a motor for slightly rotating the outer peripheral ring.

The aberration of the zoom lens generally changes depending on the zoom position. The zoom position detection circuit 50
For example, one that outputs a voltage corresponding to the resistance value change of a variable resistor (potentiometer) that rotates in conjunction with the zoom ring of the lens, or a magnetic substance attached to the movable part of the lens according to the zoom by a hall element The position is detected, and the zoom position of the lens obtained from the zoom position detection circuit 50 is input to the microcomputer 51. The microcomputer 51 outputs a correction signal for correcting the aberration occurring at the current zoom position to the motor drive circuit 52 from, for example, a data table storing the correction amount corresponding to each zoom position. The motor drive circuit 52 rotates the motor 49 according to the correction signal from the microcomputer 51. The case where the motor 49 rotates will be described with reference to FIG. FIG. 8 is an enlarged view of the periphery of one cam member 45 in the configuration shown in FIG. The state shown by the broken line in FIG.
Is displaced in the counterclockwise direction by the motor 49. At that time, the cam member 45 rotates about the portion stopped by the fixing ring 46, and compresses the optical element 30. The force applied to the optical element 30 can be controlled by the displacement amount of the outer peripheral ring 47.

Since the direction of the force applied to the optical element 30 by the cam member 41 is only in the direction of compressing the optical element 30, as shown in FIG. 9, the light image is slightly reduced even if correction is not necessary. Such an optical system is set ((A) in the figure), or the shape of the optical element 30 is previously made concave ((B) in the figure). In this case, displacement to the left of the outer peripheral ring 47 results in correction in the contraction direction, and displacement to the right results in correction in the expansion direction.

Example 3. An embodiment of the third invention of the present invention will be described below. In FIG. 10, reference numeral 55 is a replaceable imaging lens having a built-in memory for storing optical distortion data, and reference numerals 56, 57 and 58 are optical blocks including optical elements, lever members, plungers (movable mechanism by electromagnetic force) and the like. , 59 are plunger drive circuits for driving the plunger. FIG. 11 shows optical blocks 56, 57, 5
8 is a diagram showing the configuration of FIG. 8, in which 60 is a lever member, and 61 is a plunger for moving the lever member 60.

When it is desired to compress the optical element 30 and reduce the optical image for correction, the plunger 61 pulls up one end of the lever member 60 and the other end of the lever member 60 as shown in FIG. Push down 30. When it is desired to extend the optical element 30 and enlarge the optical image for correction, the plunger 61 may push down one end of the lever member 60, contrary to the case of FIG. At this time, the lever member 60 and the optical element 30 need to be fixed.

In the interchangeable lens, the optical characteristics such as aberration differ depending on the type of each lens. The image pickup lens 55 has a memory for storing optical distortion data, and the content thereof is taken into the microcomputer 51, and the microcomputer 51 calculates the optimum correction amount together with the zoom position information from the zoom position detection circuit 50. Then, the correction signal is output. The plunger drive circuit 59 controls the plunger 61 according to the correction signal. As a result, the thickness of the optical element 30 changes, and the correction is performed.

Example 4. Example 3 above. Optical element 3
In order to deform 0, the lever member 60, the plunger 61
However, a configuration using the cam member 45 shown in FIG. 7 and others may be used.

Example 5. An embodiment of the fourth invention of the present invention will be described below. In FIG. 13, reference numeral 65 denotes an edge portion detection circuit that detects the edge portion of the image from the output signals of the three image pickup devices 26, 27 and 28 and outputs the deviation to the microcomputer 51. The edge portion detection circuit 65 is realized by, for example, the configuration shown in FIG. In FIG. 14, 66, 67 and 68 are amplifier circuits, 69, 70 and 71 are fixed potential voltage sources, 72, 73 and 74 are comparators,
75, 76, 77 are counters, 78, 79 are subtractors, 8
Reference numeral 0 is a timing pulse generation circuit.

The operation of the edge detection circuit shown in FIG. 14 will be described with reference to FIG. The configuration of FIG. 14 has, for example, the configuration of FIG.
As shown in FIG. 5 (A), the edge of a portion changing from a dark portion to a light portion is detected.
6 and 77 are Start from the timing pulse generation circuit
Pulse (FIG. 15 (B)) and Clock pulse (FIG. 15)
(C)) starts counting. Image pickup devices 26, 27,
The output signal of 28 is amplified by amplifiers 66, 67, 68 to a signal level comparable to that of voltage sources 69, 70, 71 and input to comparators 72, 73, 74. The outputs of the comparators 72, 73 and 74 enable the counters 75 and 7 to operate.
6 and 77 stop the counting operation. At this time, each CC
When the light images incident on D26, 27, and 28 are displaced, the edge positions are different, and the timing at which the output of each comparator changes varies as shown in FIGS. 15 (D), (F), and (H). Occurs. This deviation is counter 75, 76, 7
It is represented by a count value of 7, and the difference amount of each count value n, s, m can be obtained by the subtracters 78 and 79 to obtain the shift amount of the optical image.

The amount of deviation of the optical image thus obtained, the zoom position of the lens obtained from the zoom position detection circuit 50, and the data of the optical distortion stored in the lens are input to the microcomputer 51, and the microcomputer 51. Then, an optimum correction amount is calculated, a correction signal is output to the motor drive circuit 52, and optical correction is performed by the optical blocks 40, 41, 42. The configurations of the optical blocks 40, 41 and 42 and the operation thereof are the same as those shown in FIG.

Example 6. In the fifth embodiment, the optical element 30
To deform the cam member 45, the fixing ring 46,
Although the structure including the outer peripheral ring 47, the coupling member 48, the motor 49, and the motor drive circuit 52 is used, the lever member 60, the plunger 61, and the plunger drive circuit 5 shown in FIG. 11 are used.
A configuration of 9 may be used.

Example 7. An embodiment of the fifth aspect of the invention will be described below. In FIG. 16, 85 is the optical element 3.
A heater for heating 0, 86 is a sensor for detecting the temperature of the optical element 30, 87 is an outer frame member, 88 is a holding member for holding the optical element 30 on the outer frame member 87, and 89 is a signal from the sensor 86. A temperature detection circuit for taking out, a reference value generation circuit 90 for outputting a reference value corresponding to a predetermined temperature setting,
Reference numeral 91 is a comparison circuit that compares the outputs of the temperature detection circuit 89 and the reference value generation circuit 90, and 92 is a heater drive circuit that drives the heater 85 according to the output of the comparison circuit 91.

The optical element 30 expands when heated by the heater 85 and the periphery is fixed by the holding member 88, so that the thickness of the optical element 30 changes and the lens effect can be obtained. To adjust the thickness, it is necessary to control the heating by the heater 85. In the present invention, the output of the sensor 86 for detecting the temperature attached to the optical element 30 and the output of the reference value generation circuit 90 are compared by the comparison circuit 92, and the heating by the heater 85 is performed by the heater according to the difference. Since the drive circuit 92 constitutes a closed circuit controlled by the drive circuit 92, the optical element 30 is finally heated to a temperature at which the output of the sensor 86 and the output of the reference value generation circuit 90 become equal. Therefore, in order to adjust the thickness of the optical element 30, the output of the reference value generating circuit 90 may be adjusted.

Since the optical element 30 only applies heat, as in the case shown in FIG. 9 of the second embodiment of the present invention, the optical element 30 is slightly heated to reduce the optical image even when no correction is necessary. By setting the optical system like that, and correcting the expansion and contraction equivalently, or by making the optical element concave in advance,
You can correct the enlargement and reduction.

Example 8. An embodiment of the sixth invention of the present invention will be described. In FIG. 17, reference numerals 95, 96 and 97 denote optical blocks including optical elements, temperature detecting sensors, heaters, etc., and FIG. 18 is a diagram showing the configuration of the optical blocks 95, 96 and 97. In the figure, 85 is an optical element 3.
A heater for heating 0, 86 is a sensor for detecting the temperature of the optical element 30, 87 is an outer frame member, 88 is a holding member for holding the optical element 30 on the outer frame member 87, and these functions and operations are Example 7. Is the same as.

The aberration of the zoom lens 1 changes depending on the zoom position. Zoom position information of the lens 1 obtained from the zoom position detection circuit 50 is input to the microcomputer 51.
In the microcomputer 51, for example, the temperature data of the optical element 30 capable of correcting the aberration occurring at the current zoom position from the data table storing the correction amount corresponding to each zoom position, and the current data obtained from the temperature detection sensor 86. The temperature data of the optical element 30 is compared, and a correction signal corresponding to the result is output to the heater drive circuit 92. Heater drive circuit 9
Reference numeral 2 drives the heater 85 according to the correction signal from the microcomputer 51, the heater 85 heats the optical element 30 to a predetermined temperature, and the optical distortion is removed.

Example 9. An embodiment of the seventh invention of the present invention will be described. In FIG. 19, reference numeral 55 denotes a replaceable image pickup lens having a built-in memory that stores optical distortion data, and 95, 96, and 97 denote the images obtained in Example 8. The optical element 30, the temperature detecting sensor 86, the heater 85 and the like having the same configuration as shown in FIG. 18 can be used.

The image pickup lens 55 is a replaceable lens, and optical characteristics such as aberration differ depending on the type of lens.
The image pickup lens 55 has a memory that stores optical distortion data, and the contents thereof are taken into the microcomputer 51. The microcomputer 51 combines the zoom position information from the zoom position detection circuit 50 and the current temperature data of the optical element 30 obtained from the temperature detection sensor 86 to calculate an optimum correction amount, and outputs a correction signal. Heater drive circuit 92
Controls the heat generation of the heater 85 according to the correction signal. As a result, the thickness of the optical element 30 changes, and the correction is performed.

Example 10. An embodiment of the eighth invention of the present invention will be described. In FIG. 20, reference numeral 55 denotes a replaceable image pickup lens having a built-in memory for storing optical distortion data, and 95, 96, and 97 are the same as those in the eighth embodiment. 18 is an optical block having the same configuration as that shown in FIG. 18 and including an optical element 30, a temperature detecting sensor 86, a heater 85, and the like. This is an edge detection circuit that detects the deviation and outputs the deviation to the microcomputer 51. The edge detection circuit 65 is the same as that of the fifth embodiment. It is realized by the same configuration as.

The shift amount of the optical image output from the edge detection circuit 65, the zoom position of the lens obtained from the zoom position detection circuit 50, the optical distortion data stored in the lens 55, and the sensor 86. The current temperature data of the optical element 30 to be output is input to the microcomputer 51. The microcomputer 51 calculates an optimum correction amount and outputs a correction signal to the heater drive circuit 92. In response to this, the heater driving circuit 92 controls the heater 85, the thickness of the optical element 30 heated by the heater 85 changes, and optical correction is performed.

Example 11. In the fifth and tenth embodiments, the lens 55 is capable of zooming and exchange, and has a memory for storing optical distortion data therein, but the present invention is not limited to this.

Example 12. Although a plurality of heaters 85 for heating the optical element 30 are dispersedly arranged in the above-mentioned Examples 7 to 10, heating wires may be arranged around the outer periphery of the optical element 30 as shown in FIG.

Example 13 In addition, in the above-described seventh to tenth embodiments, the plurality of heaters 85 are commonly driven in the heater drive circuit 92, but in order to perform more accurate correction, FIG.
As shown in FIG. 5, a plurality of sensors 86 and heaters 85 may be arranged respectively. In the figure, 93 is each heater 85.
A heater driving circuit drives each of the above. In the case of the configuration shown in the figure, it is preferable that the reference value generation circuit 90 and the comparison circuit 91 are not provided for each of the sensors 86, but the same operation is realized by the microcomputer 51.

Example 14. In Examples 7 to 10 described above, the optical blocks were provided in front of the image pickup devices 26, 27, and 28, respectively, but one of the three optical blocks was omitted and an optical image transmitted through the two optical blocks was omitted. May be matched with the size of one remaining light image.

[0049]

As described above, in the first, second, third and fourth inventions of the present invention, the optical element is inserted between the color separation optical system and the image pickup device, and the optical element is mechanically mounted. Transform it,
Since the size and shape of the light image can be changed, the registration deviation due to the aberration and distortion of the lens optical system
The correction can be performed regardless of the type of the image sensor.

Further, in the fifth, sixth, seventh and eighth inventions of the present invention, an optical element is inserted between the color separation optical system and the image pickup element, and the optical element is deformed by the heating means to obtain an optical image. Since the size and shape of the lens can be changed, it is possible to correct the registration shift due to the aberration or distortion of the lens optical system regardless of the type of the image pickup device.

Further, in the second and sixth aspects of the present invention, the zoom position of the lens is detected and the optical element is deformed according to the zoom position. Even in such a case, the misregistration can always be corrected regardless of the type of the image sensor.

Further, in the third and seventh aspects of the present invention, the optical element is deformed according to the data stored in the memory built in the lens. Even if the aberration or the like changes, the registration deviation can always be corrected regardless of the type of the image pickup device.

Further, in the fourth and eighth aspects of the present invention, the edge portion of the image is detected from the output signal of each image pickup element and the optical element is deformed so that the edge shift is eliminated. Regardless of the type, the registration deviation can always be corrected regardless of the type of the image sensor.

Further, by using the image pickup state of one solid-state image pickup device as a reference and correcting the image pickup states of the other two solid-state image pickup devices to match the image pickup state of the reference solid-state image pickup device, the reference state is obtained. It is possible to omit the means for correcting the registration of the signal system of the solid-state image sensor,
Can be cheap.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a color image pickup apparatus according to an embodiment of the first aspect of the present invention.

FIG. 2 is a diagram showing a configuration of an optical block according to an embodiment of the first aspect of the present invention.

FIG. 3 is a partial enlarged view of an optical block according to an embodiment of the first invention of the present invention.

FIG. 4 is a diagram showing the effect of the modification of the optical element of the first embodiment of the present invention.

FIG. 5 is a diagram for explaining the operation of the first exemplary embodiment of the present invention.

FIG. 6 is a diagram showing a configuration of a color image pickup apparatus according to an embodiment of the second invention of the present invention.

FIG. 7 is a diagram showing a configuration of an optical block according to an embodiment of the second invention of the present invention.

FIG. 8 is a partially enlarged view of an optical block according to an embodiment of the second invention of the present invention.

FIG. 9 is a diagram showing the effect of the modification of the optical element of the second embodiment of the present invention.

FIG. 10 is a diagram showing a configuration of a color imaging device according to an embodiment of the third invention of the present invention.

FIG. 11 is a diagram showing a configuration of an optical block according to an embodiment of the third invention of the present invention.

FIG. 12 is a partially enlarged view of an optical block according to an embodiment of the third invention of the present invention.

FIG. 13 is a diagram showing a configuration of a color image pickup apparatus according to an embodiment of the fourth invention of the present invention.

FIG. 14 is a block diagram of an edge detection unit according to an embodiment of the fourth invention of the present invention.

FIG. 15 is a timing chart for explaining the operation of the edge detection unit according to the fourth embodiment of the present invention.

FIG. 16 is a diagram showing a configuration of an optical block according to an embodiment of the fifth invention of the present invention.

FIG. 17 is a diagram showing a configuration of a color imaging device according to an embodiment of the sixth invention of the present invention.

FIG. 18 is a diagram showing a configuration of an optical block according to an embodiment of the sixth invention of the present invention.

FIG. 19 is a diagram showing the configuration of a color image pickup apparatus according to an embodiment of the seventh aspect of the present invention.

FIG. 20 is a diagram showing the structure of a color image pickup apparatus according to an embodiment of the eighth invention of the present invention.

FIG. 21 is a diagram showing a configuration of an optical block according to another embodiment of the fifth, sixth, seventh, and eighth inventions of the present invention.

FIG. 22 is a diagram showing the configuration of an optical block according to another embodiment of the fifth, sixth, seventh, and eighth inventions of the present invention.

FIG. 23 is a block diagram showing a conventional color solid-state imaging device.

FIG. 24 is a diagram for explaining the operation of the conventional color solid-state imaging device.

FIG. 25 is a timing chart for explaining operation timing of a conventional color solid-state imaging device.

[Explanation of symbols]

 1, 55 lens 2 color separation optical system 23, 24, 25 optical block 26, 27, 28 solid-state imaging device 31 screw member 32 coupling member 33 outer frame member 40, 41, 42 optical block 45 cam member 46 fixing ring 47 outer peripheral ring 48 coupling member 49 motor 50 summ position detection circuit 51 microcomputer 52 motor drive circuit 56, 57, 58 optical block 59 plunger drive circuit 60 lever member 61 plunger 65 edge detection circuit 66, 67, 68 amplification circuit 69, 70, 71 fixed Potential voltage source 72, 73, 74 Comparator 75, 76, 77 Counter 78, 79 Subtractor 80 Timing pulse generation circuit 85 Heater 86 Sensor 87 Outer frame member 88 Holding member 89 Temperature detection circuit 90 Reference value generation circuit 91 Comparison circuit 92 , 93 Heater drive Road 95, 96, 97, the optical block

Claims (8)

[Claims] 1. An imaging lens, a color separation optical system for separating an optical image incident from the imaging lens into a plurality of optical images, and each color light separated by the color separation optical system is converted into an electric signal. A color image pickup apparatus comprising: a plurality of image pickup elements, at least two or more optical elements arranged in front of the image pickup elements, and mechanical means for applying a force to the optical elements. 2. An imaging lens, a color separation optical system for separating an optical image incident from the imaging lens into a plurality of optical images, and each color light separated by the color separation optical system is converted into an electric signal. A plurality of image pickup devices, an optical element arranged in front of at least two image pickup devices, mechanical means for applying a force to the optical elements, driving means for driving the mechanical means, and zoom of the image pickup lens. A color image pickup device comprising a control means for controlling the drive means according to a position. 3. An exchangeable imaging lens having optical distortion data built therein, a color separation optical system for separating an optical image incident from the imaging lens into a plurality of optical images, and a color separation optical system for decomposition. A plurality of image pickup elements for converting the respective colored light into electric signals, optical elements arranged in front of at least two or more of the image pickup elements, mechanical means for applying a force to the optical elements, and the mechanical means. A color image pickup apparatus comprising: driving means for driving; and control means for controlling the driving means according to optical distortion data and zoom position obtained from the imaging lens. 4. An imaging lens, a color separation optical system that decomposes an optical image incident from the imaging lens into a plurality of optical images, and each color light decomposed by the color separation optical system is converted into an electric signal. A plurality of image pickup devices, an optical element arranged in front of at least two image pickup devices, mechanical means for applying a force to the optical elements, drive means for driving the mechanical means, and signals of each image pickup device An edge portion detecting means for detecting the edge portion of the image from the image, and a control means for controlling the driving means so as to eliminate the deviation of the edge portion of the image between the image pickup devices discriminated by the edge portion detecting means. A color image pickup device characterized by the above. 5. An imaging lens, a color separation optical system for separating an optical image incident from the imaging lens into a plurality of optical images, and each color light separated by the color separation optical system is converted into an electric signal. A plurality of image pickup devices, an optical element arranged in front of at least two image pickup devices, a heating means for heating the optical elements, and a control means for controlling the heating means so that the optical elements reach a predetermined temperature. A color image pickup device comprising: 6. An imaging lens, a color separation optical system that decomposes an optical image incident from the imaging lens into a plurality of optical images, and each color light decomposed by the color separation optical system is converted into an electric signal. A plurality of image pickup elements, at least two or more optical elements arranged in front of the image pickup elements, a heating means for heating the optical elements, and a temperature of the optical elements depending on a zoom position of the image pickup lens. A color image pickup apparatus is provided with a control means for controlling the heating means. 7. A replaceable imaging lens having optical distortion data built therein, a color separation optical system for separating an optical image incident from the imaging lens into a plurality of optical images, and a decomposition by the color separation optical system. A plurality of image pickup elements for converting the respective colored lights into electric signals, optical elements arranged in front of at least two or more of the image pickup elements, heating means for heating the optical elements, and the image pickup lens. A color image pickup apparatus comprising: a control unit that controls the heating unit so that the temperature of the optical element changes in accordance with the optical distortion data and the zoom position. 8. An imaging lens, a color separation optical system for separating an optical image incident from the imaging lens into a plurality of optical images, and each color light separated by the color separation optical system is converted into an electric signal. A plurality of image pickup elements, at least two or more optical elements arranged in front of the image pickup elements, heating means for heating the optical elements, and edge portion detection for detecting an edge portion of an image from a signal of each image pickup element And a control unit for controlling the heating unit so as to eliminate the deviation of the edge portion of the image between the image pickup devices discriminated by the edge portion detection unit.