JP3462899B2 - Three-panel TV camera device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-panel television camera device having a heat dissipation structure and having three solid-state image pickup devices for picking up a color image.

[0002]

2. Description of the Related Art Conventionally, a heat dissipation structure used in a three-plate type camera of this type includes a Peltier element, a heat dissipation fin formed of a metal such as aluminum, a metallic chassis, etc. A Peltier element is joined to a certain CCD element with a heat conductive adhesive material, and the Peltier element is brought into contact with a heat radiation fin to conduct and radiate heat. Since the metallic chassis is used for the exterior case, it is easy to dissipate the heat generated inside the camera.

[0003]

However, in the conventional heat dissipation device for a three-panel television camera, it is difficult to realize space saving and cost reduction because it has a Peltier element, heat dissipation fins, etc. inside the camera. There was a problem. In addition, since a metal chassis having electrical conductivity is used for the outer case portion, it is difficult to expand it to a medical camera due to safety standards.

The present invention solves such a conventional problem, and an object of the present invention is to provide a three-panel television camera device which is capable of efficiently dissipating heat generated inside the three-panel television camera and which is excellent in safety. It is what

[0005]

The present invention SUMMARY OF THE INVENTION In order to achieve the above object, a three-plate type camera with three solid-state imaging device, when it is disposed within said three-plate camera DOO
A prism mounted with an electronic part comprising a solid-state image sensor to monitor on a substrate, a heat radiating plate and the shield case made of a metal plate provided on the outside of the prism, the heat radiating plate and seal
The outer case, which is provided on the outside of the case and is made of an insulating material.
The base part, the board and the heat dissipation plate and shield case.
Pressure contact thermal conductivity of the elastic member, and a connector which is joined the radiating plate and the shield case to face contact with the heat release Fi
And a camera cable coupled to the connector .

[0006]

Therefore, according to the present invention, the heat generated by the electronic components such as the solid-state image pickup device arranged inside the three-plate type camera is intervened by the elastic member having a high thermal conductivity which covers the heating element. The heat radiation plate / shield case, the connector, and the camera cable having the heat radiation structure can be sequentially and completely thermally coupled, and heat can be efficiently radiated. Further, since the outer case portion is made of an insulating material, it is excellent in safety.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a three-panel television camera device of the present invention. In FIG. 1, 1 is a three-plate type camera body. 2 is front escutcheon, 3 is back case, 4
Is a switch cover, 5 is a switch button, and these are made of an insulating material such as synthetic resin. Reference numeral 6 is a camera cable having a radiation fin 6a.

FIG. 2 is an exploded perspective view of the three-plate type television camera device, and FIG. 3 is a schematic side view in which the three-plate type television camera device is partially disassembled. 2 and 3, 1 to 6 are the same as those in FIG. Reference numeral 7 denotes a three-plate prism that color-separates incident light, and is attached to the front escutcheon 2 with a prism holder 8 and a screw 9. 10
Is a CCD element as a solid-state image sensor, and is bonded to the three-plate prism 7 with an adhesive or the like. Reference numeral 11 denotes a substrate on which the CCD 10 and other electronic components are mounted. An elastic member 12 made of silicon rubber or the like having excellent thermal conductivity is formed in a shape along the outer shape of the three-plate prism 7 on which the CCD element 10, the substrate 11, etc. are mounted. It pressed to the heating element such as an IC on the substrate 11. Reference numeral 13 denotes a heat radiating plate / shield case formed of a metal plate, and by covering the elastic member 12 from above, the elastic member 12 is in surface contact with the elastic member 12 due to its repulsive elasticity. Reference numeral 14 is a connector formed of a metal shell having a flange portion 14a and a key groove portion 14b.
After making a surface contact with a and inserting the guide key portion 13a of the rotation stopper into the key groove portion 14b, it is attached by the nut 15. Camera cable 6 having radiating fins 6a
Has its connector portion 6b joined to the connector 14.

Next, the operation of the above embodiment will be described.
When the three-plate camera is operated, heat is generated from the CCD element 10 and the IC on the substrate 11 arranged inside the camera, and an elastic member formed of silicon rubber or the like having excellent thermal conductivity with respect to the heating element. Since 12 is in pressure contact, heat is conducted to the elastic member 12 side. Further, since the upper side of the elastic member 12 is covered with the heat dissipation plate / shield case 13 which is pressed by the repulsive elasticity, heat is conducted to the heat dissipation plate / shield case 13 side. Further, the heat dissipation / shield case 13 has a connector 1 formed of a metal shell.
4 is joined to the connector 14, and the radiation fin 6
Since the camera cable 6 having a is joined, the heat is sequentially conducted, and the heat is completely coupled and is radiated through the heat radiation fin 6a of the camera cable 6.

As described above, according to the above embodiment, the heat generated inside the three-plate type camera is completely thermally coupled by interposing the elastic member 12 made of silicon rubber or the like having excellent thermal conductivity. Therefore, heat can be efficiently dissipated in a space-saving manner, and the outer case portion is formed of an insulating material such as synthetic resin, so that it has an effect of being excellent in safety.

[0011]

As is apparent from the above embodiment, the present invention includes a three-plate type camera body having three solid-state image pickup elements ,
A prism mounted with an electronic part comprising a solid-state imaging elements on a substrate while being disposed within said three-plate camera,
The heat dissipation plate / shield case formed of a metal plate provided outside the prism , and the heat dissipation plate / shield case
An outer case part formed of an insulating material provided on the outside,
Pressed onto the board and the heatsink and shield case
It has a thermal conductivity of the elastic member, and a connector which is joined the radiating plate and the shield case to face contact with the heat release fins
In addition, since the camera cable connected to the connector is provided, the heat generated inside the three-plate camera can be efficiently dissipated in a space-saving manner, and the safety is excellent.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a three-panel television camera device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the device.

FIG. 3 is a schematic side view in which the device is partially disassembled.

[Explanation of symbols]

1 Three-plate camera body 2 Front escutcheon 3 back case 4 switch cover 5 switch buttons 6 camera cable 6a Heat dissipation fin 6b Connector part 7 Three-plate prism 8 prism holder 9 screws 10 CCD element 11 board 12 Elastic member 13 Heat sink and shield case 13a Guide key part 14 connector 14a Flange part 14b Key groove 15 nuts

Continuation of the front page (56) References JP-A 1-2222579 (JP, A) JP-A 5-137037 (JP, A) Actually opened 61-189668 (JP, U) Actually opened 4-61867 (JP , U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04N 5/225-5/247 A61B 1/04

Claims (2)

(57) [Claims] And 1. A three-plate type camera with three solid-state imaging device, when it is disposed within said three-plate camera DOO
A prism mounted with an electronic part comprising a solid-state image sensor to monitor on a substrate, a heat radiating plate and the shield case made of a metal plate provided on the outside of the prism, the heat radiating plate and seal
The outer case, which is provided on the outside of the case and is made of an insulating material.
The base part, the board and the heat dissipation plate and shield case.
Pressure contact thermal conductivity of the elastic member, and a connector which is joined the radiating plate and the shield case to face contact with the heat dissipation Fi
Three-panel television camera apparatus characterized by comprising a camera cable coupled to said connector and having a down. Wherein said insulating material of said outer casing part is a synthetic resin, the solid-state imaging element is a CCD element, before
Serial elastic member three-panel television camera apparatus according to claim 1, wherein the silicone rubber.