CN2664020Y

CN2664020Y - Light pipe support

Info

Publication number: CN2664020Y
Application number: CN 200320100696
Authority: CN
Inventors: 王彦麟; 徐子桓
Original assignee: BenQ Corp
Current assignee: BenQ Corp
Priority date: 2003-11-26
Filing date: 2003-11-26
Publication date: 2004-12-15
Anticipated expiration: 2013-11-26

Abstract

A light pipe support is used to support and protect a light pipe of light machine system. The light pipe support comprises a body and a baffle. The body is used to support and cover the light pipe. The body is provided with an incidence side and an emergence side. The light pipe is arranged between the incidence side and the emergence side. The baffle is arranged on the incidence side of the body to shield the light pipe. The baffle is used to prevent the light of the light machine system from shining directly on the light pipe and the body.

Description

The photoconductive tube carriage

Technical field

This is novel to relate to a kind of photoconductive tube carriage, particularly relates to a kind of photoconductive tube carriage of effectively radiation-inhibiting heat.

Background technology

Consult Fig. 1, all have an optical-mechanical system 1 in general projector, this optical-mechanical system 1 mainly is to be made of an irradiation unit 11, a photoconductive tube 12, a ray machine 13 and a projection lens 14.As shown in Figure 1, in irradiation unit 11, also be provided with a bulb (not shown), and irradiation unit 11 is that ray machine 13 then is to connect projection lens 14 with photoconductive tube 12 connection ray machines 13.When the bulb in the irradiation unit 11 was luminous, light was transferred in the ray machine 13 via photoconductive tube 12, and then, ray machine 13 further carries out Flame Image Process, and then processed images is throwed away via projection lens 14.

In general, photoconductive tube 12 mainly is made of four (or multi-disc) catoptrons 15, as shown in Figure 2.Four catoptron 15 gluings fixed to one another surround together and form a smooth incident channel, so when the bulb in the irradiation unit 11 is luminous, incident ray can enter in the photoconductive tube 12, and by the total reflection of four catoptrons 15 incident ray is reflected into intimate parallel light, to enter the inside of ray machine 13.Yet, being close to angle or the position that parallel light enters ray machine 13 in order to adjust, the position of photoconductive tube 12 must be adjustable.As shown in Figure 2, the position of photoconductive tube 12 can be adjusted

screw

16,17 by two on the shell that is arranged on ray machine 13 and adjust, in other words, by adjusting the rotation of

screw

16 or 17, the horizontal level of photoconductive tube 12 or upright position just can change, to meet angle or the status requirement that parallel rays enters ray machine 13.It should be noted that, owing to adjust level or the upright position that screw 16,17 direct roof pressure catoptrons 15 are adjusted photoconductive tube 12 with two, often cause the damage of catoptron 15, as shown in Figures 2 and 3, one metal photoconductive tube carriage 18 is coated on the periphery of photoconductive tube 12, and this photoconductive tube carriage 18 can make photoconductive tube 12 avoid directly being subjected to the roof pressure of two adjustment screws 16,17.In addition; because photoconductive tube 12 also is to keep assembly 19 fixing and supports by one; and between photoconductive tube carriage 18 and maintenance assembly 19, also be provided with one or more spring (not shown); so when adjusting that

screw

16,17 is rotated and when forcing spring that extruding takes place, photoconductive tube carriage 18 can also protect photoconductive tube 12 not the reason spring extruding and damage.

Yet, along with projector is more and more high for the demand of brightness, so the power of bulb also must significantly improve, in this case, photoconductive tube 12 and photoconductive tube carriage 18 are subjected to the direct irradiation of high power bulb and the radiations heat energy of hyperabsorption, at this moment, the radiations heat energy of metal photoconductive tube carriage 18 Chang Yinwei hyperabsorptions and cause its temperature acutely to rise, and surpass the upper limit of its working temperature.Simultaneously, photoconductive tube 12 makes because of the radiations heat energy of hyperabsorption that also phenomenon softening or fusing takes place to be attached to four fixing glue between the catoptron 15, and then causes the structure of photoconductive tube 12 to be damaged and optical-mechanical system 1 breaks down and damages.

Therefore, this novel purpose provides a kind of improved photoconductive tube carriage, it not only can improve the support strength of the photoconductive tube of optical-mechanical system, also can intercept the radiations heat energy of the bulb that comes from optical-mechanical system effectively, take place with the damage that prevents photoconductive tube, and then degree of stability and fiduciary level when improving the optical-mechanical system running.

Novel content

This is novel to adopt basically as detailed below that feature solves the problems referred to above.That is to say, this novel photoconductive tube that is applicable to support and protects an optical-mechanical system, and comprise a body, and in order to support and to coat this photoconductive tube, wherein, this body has an incident end and an exit end, and photoconductive tube is between this incident end and exit end; And a baffle plate, be arranged on the incident end of body, and the shield light conduit, in order to the light direct irradiation that prevents to send by this optical-mechanical system in photoconductive tube and body.

Simultaneously, according to this novel photoconductive tube carriage, this baffle plate is made by a reflective material.

Again this novel in, surface-coated one reflective material of baffle plate.

In this was novel, body and baffle plate were one of the forming, and are made by reflective material again.

In this was novel, body and baffle plate were one of the forming, the surface-coated reflective material of baffle plate again.

In this was novel, body and baffle plate were integrally formed by metal, the surface-coated reflective material of baffle plate again.

Description of drawings

For making this novel above-mentioned purpose, feature and advantage can more obvious easy to understand, elaborate especially exemplified by preferred embodiment and conjunction with figs. below.In the accompanying drawing:

Fig. 1 shows the floor map of an optical-mechanical system;

Fig. 2 shows that a known photoconductive tube carriage is coated on the schematic perspective view of a photoconductive tube;

Fig. 3 shows the schematic perspective view of a known photoconductive tube carriage;

Fig. 4 shows that this novel photoconductive tube carriage is coated on the schematic perspective view of a photoconductive tube; And

Fig. 5 shows the schematic perspective view of the photoconductive tube carriage that this is novel.

Embodiment

This novel preferred embodiment of conjunction with figs. explanation.

Consult Fig. 4 and Fig. 5, the photoconductive tube carriage 100 of present embodiment is applicable to a photoconductive tube that supports and protect an optical-mechanical system, and in other words, photoconductive tube carriage 100 is to be used for supporting and protecting the photoconductive tube 12 that is connected in ray machine 13.

As shown in Figure 5, photoconductive tube carriage 100 mainly includes a body 110 and a baffle plate 120.Body 110 has an incident end 111 and an exit end 112, and baffle plate 120 is arranged on the incident end 111 of body 110.Specifically, baffle plate 120 is to be made by a highly reflective material, perhaps is coated with a reflective material on the surface of baffle plate 120.Therefore, when irradiate light was to baffle plate 120, baffle plate 120 can reflect away irradiation light thereon.

In addition, body 110 can be integrally formed with baffle plate 120, and in this case, body 110 can all be to be made by a reflective material with baffle plate 120, perhaps is coated with a reflective material on the surface of baffle plate 120.As mentioned above, body 110 also can be integrally formed by metal with baffle plate 120, and can be coated with a reflective material again on the surface of baffle plate 120, to promote the reflecting effect of light.

As shown in Figure 4, when supporting with light catheter carriage 100 and during protection photoconductive tube 12, photoconductive tube 12 and is supported and is coated by body 110 between the incident end 111 and exit end 112 of body 110.Simultaneously, be arranged at baffle plate 120 on the incident end 111 of body 110 with the side of shield light conduit 12.So when high power light directive photoconductive tube 12 (the incident end 111 of body 110) that optical-mechanical system sent, baffle plate 120 can intercept (reflection) and fall unnecessary light, and only make the directly inside by photoconductive tube 12 of effective light.As mentioned above, the side of photoconductive tube carriage 100 (body 110) and photoconductive tube 12 just can not be by high power light direct irradiation, therefore, photoconductive tube carriage 100 (body 110) acutely rises with regard to not causing its temperature because of the radiations heat energy of hyperabsorption, and photoconductive tube 12 can not cause its structure to be damaged because of the radiations heat energy of hyperabsorption yet, and then can guarantee the optical-mechanical system degree of stability and the fiduciary level in when running.

Disclose with preferred embodiment though basis is novel; but it is not novel in order to limit this, anyly has the knack of those skilled in the art, is not breaking away from this a novel essence and scope; can make many changes and retouching, therefore this novel protection domain is defined with accompanying Claim.

Claims

1. a photoconductive tube carriage is applicable to a photoconductive tube that supports and protect an optical-mechanical system, it is characterized in that, comprising:

One body supports and coats this photoconductive tube, and wherein body has an incident end and an exit end, and photoconductive tube is between this incident end and this exit end; And

One baffle plate is arranged on the incident end of body, and the shield light conduit, and the light direct irradiation that prevents to be sent by optical-mechanical system is in photoconductive tube and body.

2. photoconductive tube carriage as claimed in claim 1 is characterized in that described baffle plate is made by a reflective material.

3. photoconductive tube carriage as claimed in claim 1 is characterized in that, surface-coated one reflective material of described baffle plate.

4. photoconductive tube carriage as claimed in claim 1 is characterized in that described body and baffle plate are one of the forming, and is made by a reflective material.

5. photoconductive tube carriage as claimed in claim 1 is characterized in that described body and baffle plate are one of the forming, surface-coated one reflective material of baffle plate.

6. photoconductive tube carriage as claimed in claim 1 is characterized in that described body and baffle plate are integrally formed by metal, surface-coated one reflective material of baffle plate.