JPH0314872Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a mounting structure for a solid-state image sensor, and particularly to a mounting structure for a solid-state image sensor used in a television camera or the like.

[Background of the idea]

As is well known, a color television camera converts the subject light from the photographing lens into R (red) using a color separation prism.
component, G (green) component, and B (blue) component, extract electrical signals of each color component using a solid-state image sensor such as a CCD, or an image pickup tube, and process this in an image signal processing circuit. The image of the subject is displayed on the TV screen. and
A solid-state image sensor such as a CCD is attached by adhesive or screwed with a fixing metal fitting while being adjusted to match the optical axis of the photographing lens and the optical axis of the prism. After adjustment, the gap between the output end of the prism and the CCD is fixed with a spacer or the like interposed to maintain this gap. Conventionally, the prism end face
A bracket for fixing the CCD was provided, and the solid-state image sensor was attached to this bracket via a spacer. However, such a method has disadvantages in that an extra bracket is required and additional work is required to attach the bracket. Furthermore, there was a problem in that the end face of the color separation prism had to be processed in order to attach the bracket.

[Purpose of invention]

The present invention was made in view of the above circumstances, and an object of the present invention is to provide a mounting structure for a solid-state image sensor, which allows a solid-state image sensor such as a CCD to be easily mounted.

[Summary of the idea]

In order to achieve the above object, the present invention provides an arrangement in which the end surface of the mounting plate to which the color separation prism is bonded is formed to protrude beyond the output end of the color separation prism, and the mounting plate is The end face is formed to be an inclined surface with respect to the color separation prism output optical axis,
The prism output end side of the spacer is formed into an inclined surface with respect to the output optical axis, and the spacer inserted from at least two directions is arranged between the end face of the mounting plate and the solid-state image sensor, so that the end face of the mounting plate and the solid-state It is characterized by adhering to the image sensor.

[Example of idea]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a mounting structure for a solid-state image sensor according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 shows the operation when attaching a CCD as a solid-state image sensor to a color separation prism of a television camera. A bracket 12 is provided upright on the base plate 10 of the mounting jig, and the front panel 1 of the television camera is mounted on this bracket 12.
3. The lens mount 14 and the color separation prism holding frame 15 are held together, and the lens mount 14 is fitted with a photographing lens 16, and the frame 15 is held together.
A color separation prism 18 is mounted inside through mounting plates 30, 30. After the color separation prism 18 is adhered to the mounting plate 30, it is housed in the frame 15. As shown in FIG. 3, CCDs 20 are attached to the color separation prism 18 at each of its three emission ends in order to extract R, G, and B component electrical signals. The CCD 20 is held by a holder 22 movably provided on the base plate 10 of the mounting jig, and the holder 22 adjusts the vertical and horizontal optical axis alignment. It is then glued to the output end of the color separation prism 18 with the necessary gap maintained. One end of the lead wire 24 that sends the electrical signals of the color components of the CCD 20 is connected to the connector 21.
It is connected to the CCD 20, and the other end is connected to a control unit 26 including an image processing circuit, and based on the image signal processed by the control unit 26, the photographing lens 1 is displayed on the monitor television 28.
The subjects from 6 onwards are displayed.

In Fig. 2, the adjustment direction of the CCD 20 is shown, and according to this, the CCD 20 is adjusted in three axes X, Y,
Adjustment is required in the Z, rotational directions of the three axes, and the RX, RY, and RZ directions.

In FIG. 3, the color separation prism 18 and the mounting plate 30 to which the color separation prism 18 is glued are shown, and the fourth
The figure shows the detailed structure of the CCD20 mounting part.
In FIG. 5, the structure of the mounting plate 30 is shown. The end surface of the mounting plate 30 on the output side is configured as an inclined surface 30A. On the other hand, as shown in FIG. 4, the spacer 19 has a vertical surface 19A formed on its right side, but an inclined surface 19B inclined with respect to the output optical axis on its left side. As can be seen from FIG. 4, the inclined surface 30A and the inclined surface 19B are formed with substantially the same inclination angle. In such a structure, the CCD 20 can be moved in three axial directions and in three directions.
After adjusting the direction of rotation of the shaft, both sides 19 of the spacer 19
A, 19B are coated with adhesive and inserted into the gap between the inclined surface 30A of the mounting plate 30 and the CCD 20 as shown in FIG. By configuring like this,
Even if there is variation in the gap between the end surface of the mounting plate 30 and the end surface of the CCD 20, since at least one side surface 19B of the spacer 19 is configured as an inclined surface, the inclined surface 19B of the spacer 19 and the mounting plate 30
The prism 18 and the CCD 20 are in surface contact with the inclined surface 30A, and can be easily bonded together with one spacer 19, thereby maintaining the necessary gap between the prism 18 and the CCD 20.

After bonding, remove the optical system from the jig, and then attach the CCD
Prism and CCD20 are used to prevent dust on the imaging surface of
The gap between the two is sealed with a silicone sealant or the like.

Further, as shown in FIG. 6, the inclined surfaces 19B, 3
The inclination angle of 0A may be made different, and the inclined surface 19B and the inclined surface 30A may be brought into line contact.

Furthermore, in the embodiment described above, the mounting plates 30, 30 were attached to the top and bottom of the prism 18 as shown in FIG. good.

[Effect of idea]

As explained above, according to the mounting structure of the solid-state image sensor according to the present invention, the end face of the mounting plate to which the color separation prism is bonded is configured as an inclined surface, so that the CCD, etc. can be directly attached to the mounting plate via the spacer. solid-state imaging devices can be bonded. Furthermore, since there is no need to provide a bracket on the prism as in the conventional case, there is no need for machining to attach the bracket to the prism, which has the effect of preventing the prism from becoming damaged or damaged.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing how the image sensor is attached to the color separation prism, Fig. 2 is a perspective view showing the adjustment direction of the solid-state image sensor, Fig. 3 is a plan view of the mounting plate, and Fig. 4 is an illustration of the mounting part. 5 is an enlarged view showing a mounting plate of the color separation optical system according to the present invention; FIG. 6 is a sectional view showing a modification of the spacer; and FIG. 7 is a perspective view showing a modification of the mounting plate. It is. 18...prism, 19...spacer, 20...
...solid-state image sensor, 30...mounting plate, 30A...slanted surface.

Claims (1)

[Scope of Claim for Utility Model Registration] In a solid-state image sensor mounting structure in which a solid-state image sensor is attached via a spacer to the output end side of a color separation prism that separates object light from a photographic lens into a plurality of wavelength range components, The end face of the mounting plate to which the color separation prism is bonded is formed so as to protrude from the output end of the color separation prism, and the end face of the mounting plate is tilted with respect to the color separation prism output optical axis. The prism output end side of the spacer is formed as a surface inclined with respect to the output optical axis, and the spacer is inserted from at least two directions between the end face of the mounting plate and the solid-state image sensor and is mounted. A mounting structure for a solid-state image sensor, characterized by bonding an end surface of a plate and a solid-state image sensor.