US 5,477,329 A · Image sensor having externally mounted control board

Abstract

To provide an image sensor which enables internally mounted electronic parts such as a light receiving element to be protected against adverse affection at assembly of the image sensor, electronic parts in a control block to be easily adjusted after assembly, and the control block to be replaced easily and at low cost conforming to various electrical characteristic requirements, a part of a board containing a light emitting element and/or a light receiving element disposed within a frame is projected from the frame, having a glass cover on the top and side boards on both sides and terminals on one side of a connection terminal block are soldered to the projection of the board and terminals on the other side are soldered to a hybrid unit used as a control block for controlling electric signals of internally mounted electronic parts such as the light emitting and receiving elements. The hybrid unit consists of an electronic parts package and a board to which the package is soldered.

Claims13

Dependent claims

An image sensor comprising:

an optical system;
a frame enclosing said optical system;
a sensor board connected to said optical system, said sensor board being disposed within said frame so that a portion of the sensor board extends externally from said frame;
and
control means disposed externally of said frame and connected to said portion of said sensor board for controlling said optical system.

2 more elements

A printing device comprising:

a first feed means for feeding a manuscript;
a second feed means for feeding an ink ribbon;
a third feed means for feeding print forms;
and
an image sensor for converting a pattern on a face of said manuscript into electrical signals;
and
a thermal head for generating heat in response to said electrical signals and printing the pattern on the print forms with an ink of the ink ribbon;
wherein said image sensor includes:
a frame;
a transparent cover supported on the frame for contacting an object;
a light emitting block installed in the frame for emitting light against the object;
a light receiving block installed in the frame for receiving light reflected from the object;
a sensor board partially installed in the frame for supporting the light receiving block, an end of the sensor board extending externally from the frame;
and
a control board disposed outside the frame for controlling the light emitting block and the light receiving block, the control board being electrically connected to said end of the sensor board by solder.

12 more elements

Dependencies are inferred from the claim text.

Image sensor having externally mounted control board

Life of this patent

Image sensor having externally mounted control board

Life of this patent

Abstract

Claims13