Electric apparatus housing an electromagnetic wave noise generating source

Claim 2

An endoscope light source apparatus reducing radiation of electromagnetic wave noise comprising: an inner case, formed of at least a material which is electrically conductive, in which a light source generating electromagnetic waves is housed, said inner case formed with a first opening for replacing said light source; an inner door kept conductive with said inner case and closing said first opening to enclose said light source together with said inner case; and a case formed of at least a material which is electrically conductive, said case housing said inner case and having a second opening for replacing said light source and an opening and closing door for closing said second opening.

Claim 3

An endoscope light source apparatus reducing radiation of electromagnetic wave noise comprising: an inner case formed of at least a material which is electrically conductive, said inner case housing a light source generating electromagnetic waves and said inner case formed with a first opening for replacing said light source; an inner door kept conductive with said inner case and closing said first opening to enclose said light source together with said inner case; a case formed of at least a material which is electrically conductive, said case housing said inner case and having a second opening for replacing said light source and an opening and closing door for closing said second opening; and a closing means for opening and closing said inner door as operatively connected with the opening and closing of said opening and closing door.

Claim 4

An endoscope light source apparatus reducing radiation of electromagnetic wave noise comprising: an inner case formed of at least a material which is electrically conductive, said inner case housing a light source generating electromagnetic waves and said inner case formed with a first opening for replacing said light source; an inner door kept conductive with said inner case and closing said first opening to enclose said light source together with said inner case; a case formed of at least a material which is electrically conductive, said case housing said inner case and having a second opening for replacing said light source and an opening and closing door for closing said second opening; and a closing means for opening and closing said inner door as operatively connected with the opening and closing of said opening and closing door.

Claim 5

An endoscope light source apparatus according to claim 1 or 2 wherein said inner case is kept conductive with said case.

Claim 6

An endoscope light source apparatus according to any of claims 1 or 2 wherein said inner case is electrically insulated from said case.

Claim 7

An endoscope light source apparatus according to claim 3 wherein said opening and closing door is made conductive with said inner door.

Claim 8

An endoscope light source apparatus according to claim 2 wherein said closing means includes a bar-like member fixed to said opening and closing door to hold said inner door and an elastic member provided on said bar-like member to press said inner door against said inner case.

Claim 9

An endoscope light source apparatus according to claim 2 wherein said closing means includes an elastic member provided between said opening and closing door and said inner door.

Claim 10

An endoscope light source apparatus according to claim 7 wherein said elastic member is an electroconductive rubber.

Claim 11

An endoscope light source apparatus according to claim 7 wherein said elastic member is a plate spring.

Claim 12

An endoscope light source apparatus according to claim 2 wherein said closing means has a link mechanism formed between said opening and closing door and said inner door so that, when said opening and closing door is closed, said inner door will be closed.

Claim 13

An endoscope light source apparatus according to claim 2 wherein said closing means comprises a bar-like member fixed to said opening and closing door to hold said inner door, an elastic member provided on said bar-like member to press said inner door against said inner case and an insulating member electrically insulating said opening and closing door and said inner door from each other.

Claim 14

An endoscope light source apparatus according to claim 2 wherein said closing means comprises a holding member fixed to said opening and closing door to hold said inner door, an insulating member held by said holding member to electrically insulate said opening and closing door and said inner door from each other and a connecting member provided on said inner door to connect said inner case and said inner door with each other.

Claim 15

An endoscope light source apparatus according to claim 1 or 2 wherein said inner door is formed of an electroconductive net of a mesh size corresponding to a frequency of electromagnetic wave noise to be reduced.

Claim 16

An endoscope light source apparatus according to claim 13 wherein said inner case has an air intake port for taking in air which cools said light source and for discharging air out of said electroconductive net of said inner door.

Claim 17

An endoscope light source apparatus according to claim 14 wherein said air intake port has an electroconductive net of a mesh size corresponding to said frequency of said electromagnetic wave noise to be reduced and for closing said air intake port.

Claim 18

An endoscope light source apparatus according to claim 1 or 2 wherein said inner case has an emitting port for emitting illuminating light output from said light source closed with an electroconductive net of a mesh size corresponding to a frequency of electromagnetic wave noise to be reduced.

Claim 19

An endoscope light source apparatus according to claim 14 wherein said opening and closing door has a vent discharging air sucked in through said air intake port.

Claim 20

An endoscope light source apparatus according to claim 1 wherein said light source is arranged in a part positioned on a periphery within said case and near said opening and closing door.

Claim 21

An electric apparatus reducing radiation of electromagnetic wave noise comprising: an inner case formed of at least a material which is electrically conductive, said inner case housing an electromagnetic wave generating source and, said inner case formed with a first opening for replacing said electromagnetic wave generating source; an inner door closing said first opening to enclose said electromagnetic wave generating source together with said inner case; and a case formed of at least a material which is electrically conductive, said case housing said inner case and having a second opening for replacing said electromagnetic wave generating source and an opening and closing door for closing said second opening.

Claim 22

An electric apparatus reducing radiation of electromagnetic wave noise comprising: an inner case formed of at least a material which is electrically conductive, said inner case housing an electromagnetic wave generating source and, said inner case formed with a first opening for replacing said electromagnetic wave generating source; an inner door closing said first opening to enclose said electromagnetic wave generating source together with said inner case; and a case formed of at least a material which is electrically conductive, said case housing said inner case and having a second opening for replacing said electromagnetic wave generating source and an opening and closing door for closing said second opening.

Claim 23

An electric apparatus according to claim 19 wherein said electromagnetic wave generating source is a light source generating an illuminating light to be fed to an endoscope.

Claim 24

An electric apparatus according to claim 19 wherein said electromagnetic wave generating source is a digital circuit.