JP2016173450A5

JP2016173450A5 -

Info

Publication number: JP2016173450A5
Application number: JP2015053036A
Authority: JP
Filing date: 2015-03-17
Publication date: 2018-02-22

Description

本実施形態のプロジェクターの概略構成図である。It is a schematic block diagram of the projector of this embodiment. 本実施形態の光源装置の構成を示す断面図である。It is sectional drawing which shows the structure of the light source device of this embodiment. 本実施形態の放電灯の部分拡大断面図である。It is a partial expanded sectional view of the discharge lamp of this embodiment. 本実施形態のプロジェクターの各種構成要素を示すブロック図である。It is a block diagram which shows the various components of the projector of this embodiment. 光の波長ごとの発光管の直進透過率を示すグラフである。It is a graph which shows the straight transmission factor of the arc tube for every wavelength of light. 本実施形態のプロジェクターの他の一例における部分を示す図である。It is a figure which shows the part in another example of the projector of this embodiment. 本実施形態のプロジェクターの他の一例における部分を示す図である。It is a figure which shows the part in another example of the projector of this embodiment.

Claims

A discharge lamp having an arc tube and emitting light;
A light modulation device that modulates light emitted from the discharge lamp according to an image signal;
A projection optical system that projects the light modulated by the light modulation device;
A detection unit for detecting ultraviolet rays of light emitted from the discharge lamp;
A control unit for determining the deterioration state of the arc tube based on the amount of ultraviolet light detected by the detection unit;
A projector comprising:

The projector according to claim 1,
A cooling device capable of cooling the discharge lamp;
The control unit controls the cooling device based on the determined deterioration state of the arc tube.

The projector according to claim 1 or 2,
A discharge lamp driving unit for supplying driving power to the discharge lamp;
The control unit controls the discharge lamp driving unit based on the determined deterioration state of the arc tube.

The projector according to any one of claims 1 to 3,
An external output device capable of outputting a state signal indicating the deterioration state of the arc tube to the outside;
The control unit causes the external output device to output the state signal based on the determined deterioration state of the arc tube.

The projector according to any one of claims 1 to 4,
A reflection mirror that reflects a part of the light emitted from the discharge lamp in a predetermined direction;
The reflecting mirror transmits ultraviolet light out of the light emitted from the discharge lamp,
The said detection part is a projector which detects the ultraviolet-ray which permeate | transmits the said reflecting mirror.

The projector according to claim 5, wherein
The said detection part is a projector located in the vertical direction upper side of the said discharge lamp and the said reflective mirror.

The projector according to claim 6, wherein
A shielding member disposed between the detection unit and the reflecting mirror for shielding light;
The said shielding member is a projector which has an opening part located in the vertical direction upper side of the said discharge lamp.

The projector according to any one of claims 1 to 4,
A reflecting mirror that reflects at least part of the light emitted from the discharge lamp in a predetermined direction;
The reflecting mirror is attached to a first end of the arc tube opposite to the predetermined direction,
The said detection part is a projector located in the said opposite direction side with respect to the said 1st edge part.

The projector according to any one of claims 1 to 4,
A reflection mirror that reflects at least a part of the light emitted from the discharge lamp in a predetermined direction;
The said detection part is a projector which detects the ultraviolet-ray among the lights reflected by the said reflecting mirror.

The projector according to claim 9,
An optical component that reflects ultraviolet rays of light reflected by the reflecting mirror;
The said detection part is a projector which detects the ultraviolet-ray reflected by the said optical component.

The projector according to any one of claims 1 to 10,
A filter disposed on an optical path of light incident on the detection unit;
The filter is a projector that transmits ultraviolet light and blocks at least part of light other than ultraviolet light.

A control method of a projector provided with a discharge lamp which emits light having a light emitting tube,
Detecting ultraviolet among the light emitted from the discharge lamp,
Based on the amount of the detected ultraviolet, and determining the deterioration state of the light emitting tube,
A projector control method comprising: