Print head, image forming apparatus and light emitting device
AssigneesKabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
InventorKoji Tanimoto
Life of this patent
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Abstract
In accordance with an embodiment, a print head comprises a transparent substrate, a drive circuit, a first light emitting element (emitter), a second light emitting element (emitter) and a lens. The drive circuit supplies a current. The first light emitting element (emitter) which is an element on the transparent substrate outputs first light with a predetermined wavelength through supply of the current. The second light emitting element (emitter) which is an element on the transparent substrate outputs second light with the predetermined wavelength through the supply of the current. The lens converges a third light generated by overlapping the first light and the second light.
Claims24
A print head, comprising:
- a transparent substrate;
- a first light emitter on the transparent substrate configured to output first light with a predetermined wavelength through supply of a current;
- a second light emitter arranged at a side of the first light emitter opposite to the transparent substrate while being laminated with the first light emitter and configured to output second light with the predetermined wavelength through the supply of the current;
- and
- a lens configured to converge third light generated by overlapping the first light and the second light,
- wherein the first light is a same color as a color of the second light;
- and
- the second light emitter is formed over the first light emitter.
A print head, comprising:
- a transparent substrate;
- a first light emitter on the transparent substrate configured to output first light with a predetermined wavelength through supply of a current from a first drive circuit;
- a second light emitter arranged at a side of the first light emitter opposite to the transparent substrate while being laminated with the first light emitter and configured to output second light with the predetermined wavelength through the supply of the current from second drive circuit;
- and
- a lens configured to converge third light generated by overlapping the first light and the second light,
- wherein the first light is a same color as a color of the second light;
- and
- the second light emitter is formed over the first light emitter.
An image forming apparatus, comprising:
- a photoconductor;
- a charger configured to charge the photoconductor;
- a developing device configured to develop a latent image on the photoconductor;
- and
- a print head comprising:
- a transparent substrate;
- a first light emitter on the transparent substrate configured to output first light with a predetermined wavelength through supply of a current;
- a second light emitter arranged at a side of the first light emitter opposite to the transparent substrate while being laminated with the first light emitter and configured to output second light with the predetermined wavelength through the supply of the current;
- and
- a lens configured to converge third light generated by overlapping the first light and the second light;
- wherein
- the print head irradiates the photoconductor with the third light to expose the photoconductor charged by the charger to form the latent image on the photoconductor,
- wherein the first light is a same color as a color of the second light;
- and
- the second light emitter is formed over the first light emitter.
A light emitting device, comprising:
- a transparent substrate;
- a first light emitter on the transparent substrate configured to output first light with a predetermined wavelength through supply of a current;
- and
- a second light emitter arranged at a side of the first light emitter opposite to the transparent substrate while being laminated with the first light emitter and configured to output second light with the predetermined wavelength through supply of the current towards the first light,
- wherein the first light is a same color as a color of the second light;
- and
- the second light emitter is formed over the first light emitter.
Dependencies are inferred from the claim text.