Light source apparatus

A technology of light source device and auxiliary light source, which is applied in the direction of light source, electric light source, point light source, etc., can solve problems such as electric shock, and achieve the effect of high safety

Active Publication Date: 2009-05-13
USHIO DENKI KK
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  • Abstract
  • Description
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Problems solved by technology

[0015] However, if Figure 7 As shown in (b), the power supply terminal 8 installed on the back of the reflector 2 is a shape that protrudes from the back of the reflector 2 at a height shown by h in the figure. When high voltage is applied to the power supply terminal 8, a discharge will occur between the power supply terminal 8 and the frame, and there is a risk of electric shock

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Embodiment Construction

[0030] Hereinafter, the light source device of the present invention will be described with reference to the drawings.

[0031] figure 1 Is a diagram showing the structure of the light source device of the present invention, figure 2 Yes figure 1 An enlarged cross-sectional view of the starting auxiliary light source shown.

[0032] Such as figure 1 As shown, the light source device of the present invention includes: an ultra-high pressure mercury lamp (hereinafter referred to as a discharge lamp) 1; a reflector 2, which surrounds the discharge lamp 1; a base 3, which is fixed to the head 21 of the reflector 2; and a starting auxiliary light source 4, Disposed in the base 3, a sealed portion of the discharge lamp 1 is inserted into the through opening 20 formed in the head 21 of the reflector 2 and fixed to the base 3 by an adhesive. The first power supply terminal 5 is fixed to the base 3 And second power supply terminal 6.

[0033] The discharge lamp 1 has sealing parts for...

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Abstract

A light source apparatus, comprises a discharge lamp and an auxiliary start-up light source provided in a base for the discharge lamp, wherein first and second external electrodes of the auxiliary start-up light source are formed on an outer face of a discharge container thereof, wherein a first lamp power feeder connected to a first external lead extending from one of the sealing portions of the discharge lamp and a first auxiliary light source power feeder connected to the first external electrode of the auxiliary start-up light source are connected to the first power supply terminal, and wherein a second lamp power feeder connected to a second external lead extending from the other sealing portion of the discharge lamp and a second auxiliary light source power feeder connected to a second external electrode of the auxiliary start-up light source are connected to the second power supply terminal.

Description

Technical field [0001] The present invention relates to a light source device, and more particularly to a light source device used as a light source of a light source device of a projector or a projector. Background technique [0002] Generally, the light source device used in optical devices such as liquid crystal projectors and DLP projectors is composed of the following parts: a high-intensity discharge lamp such as a high-pressure mercury discharge lamp as a light source; a reflector from which the high-intensity discharge lamp The radiated light is condensed and reflected to the front opening; and the starting auxiliary light source is used to reduce the starting voltage of the high-brightness discharge lamp and improve the startability of the high-brightness discharge lamp. [0003] Figure 6 It is an explanatory diagram showing the structure of a conventional light source device. The light source device includes: an ultra-high pressure mercury lamp (hereinafter referred t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/00H01J61/36F21V23/06F21Y101/00
CPCH05B41/2886Y02B20/19H01J61/54H01J61/86Y02B20/00
Inventor 三轮田修平鹈饲俊哉
Owner USHIO DENKI KK
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