US 4,724,323 A · Image line sensor unit, photosensors for use in the sensor unit and method of making the photosensors

Abstract

A photosensor comprising a photoconductive layer provided on a substrate. The layer contains amorphous silicon. At least a portion of the layer has a refractive index varying continuously through the thickness of the layer. The refractive index of the layer is 3.2 or less at a wavelength of 6,328 .ANG. in the vicinity of the surface of the substrate. A pair of electrodes are provided in electrical contact with the photoconductive layer. A photoreceptor is also provided, part of which is constituted by the spacing between the electrodes of the pair.

Claims19

Dependent claims

A photosensor comprising:

a photoconductive layer provided on a substrate, said layer including amorphous silicon, at least a portion of said layer having a refractive index varying continuously through the thickness thereof, the refractive index of the layer being 3.2 or less at a wavelength of 6,328 .ANG. near a surface of said substrate;
a pair of electrodes provided in electrical contact with said photoconductive layer;
and
a photoreceptor.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

06/781,733Filed 30 Sep 1985

Priority

JP 59-2070914 Oct 1984

Granted

9 Feb 1988

Term ends

Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04N 1/0312
Using an array of elements to project the scanned image elements onto the photodetectors: using an array of optical fibres or rod-lenses
H04N 1/0315
The photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors: using…
H04N 1/0318
The photodetectors having a one-to-one and optically positive correspondence with the scanned picture elements, e.g. linear contact sensors:…
H04N 1/1931
Using electrically scanned linear arrays , e.g. linear CCD arrays: with scanning elements electrically interconnected in groups

Image line sensor unit, photosensors for use in the sensor unit and method of making the photosensors

Life of this patent

Image line sensor unit, photosensors for use in the sensor unit and method of making the photosensors

Life of this patent

Abstract

Claims19