CN2586989Y

CN2586989Y - Light channel structure

Info

Publication number: CN2586989Y
Application number: CN 02289500
Authority: CN
Inventors: 陈瑞斌
Original assignee: Progressive Optoelectronics Tech Co Ltd
Current assignee: Progressive Optoelectronics Tech Co Ltd
Priority date: 2002-12-04
Filing date: 2002-12-04
Publication date: 2003-11-19
Anticipated expiration: 2012-12-04

Abstract

The utility model relates to an optical channel structure which comprises a frame, a set of metal casings arranged on the outer wall of the frame and at least one transparent supporter, wherein, the frame is formed by that a left side plate, a right side plate, a top plate and a back plate are mutually overlapped; an optical channel is arranged in the frame to make light rays enter the optical channel to generate reflection; the casings and the supporter are utilized to clamp the frame between the casings and the supporter to make the frame not generate deformation; the design of the metal casings is utilized to increase the capacity for bearing pressure to make an inside frame not deformed when clamped by a clamping device.

Description

Light channel structure

Technical field

The utility model relates to a kind of light channel structure, especially a kind of light channel structure that is applied in the projector as the usefulness of optically focused.

Background technology

The structure of projector mainly can be divided into illumination section, divide actinic light part and imaging moiety; Wherein this light fixture can be subdivided into bulb, lampshade and condenser system again, and the utility model relates to its condenser system.

The technology of projector can be divided into iconoscope (CRT) type, liquid crystal (LCD) type, digital light device (DLP) and miniscope.And existing digital light device architecture as shown in Figure 1, after wherein this light source 1 penetrates, earlier by a trichromatic colour wheel 4 of color (Color Wheel), light is divided into red (R), green (G) and blue (B) three looks, because this distribution of light is inhomogeneous, adding via catoptron 2 emitted light is rotational symmetry, therefore need a condenser system 3 that light is evenly distributed, again color is imaged on digital micro-mirror device 6 (Digital Micro-Mirror Device by lens 5, DMD) on, in the synchronizing signal mode, the signal of numeral rotation eyeglass, transfer continuous light to GTG, cooperate red, green and blue three-color and color representation is come out passes through camera lens 7 projection imagings at last again.And this existing condenser system 3 is to adopt one by a plurality of glass and optical channel (Light Tunnel) structure that forms by gummed, and,, light can produce reflection so that entering this optical channel at the inside surface of glass coating optical thin film (OpticalLighting Film).

Referring to shown in Figure 2, be an existing light channel structure, it comprises four sheet glass 8 and fixes in the gummed mode in the end of adjacent glass, can enter for light with the passage 9 that constitutes a rectangle, but because this light channel structure need be installed in the projector, the anchor clamps clamping is arranged still, and above-mentioned structure is only fixing so can't bear pressure to glue together, and this structure is in high temperature when using and the gummed part is changed, and influences light channel structure.In addition, referring to shown in Figure 3, be existing another light channel structure, it is also fixing to glue together in the joint of glass, so gel produces the problem of distortion when still having high temperature.

The utility model content

Fundamental purpose of the present utility model, being to solve existing light channel structure fixes in the gummed mode, glue easily changes and makes the optical channel distortion when high temperature, reach the problem that light channel structure can't bear pressure, provide a kind of and utilize the design of metal shell and supporter to fix glass, to reach the effect that prevents the optical channel distortion and increase compressive resistance.

For realizing above-mentioned purpose, light channel structure of the present utility model, comprise a framework, one is sheathed on metal shell and at least one light-permeable supporter of framework outer wall, and this framework is by a left plate, right plate, top board and base plate are superimposed with each other and constitute, and in this framework, form an optical channel, so that can entering in the optical channel, light can produce reflection, make the framework pinching therebetween by housing and supporter, and fixed frame makes it can not produce distortion, other utilizes the design of metal shell, can increase the ability of bearing pressure, the unlikely distortion of the framework of inside when making the anchor clamps clamping.

Description of drawings

Fig. 1 is existing digital light device architecture figure.

Fig. 2 is existing a kind of light channel structure synoptic diagram.

Fig. 3 is existing another kind of light channel structure synoptic diagram.

Fig. 4-1 is the light channel structure stereographic map of the utility model first embodiment.

Fig. 4-2 is the A-A cut-open view among Fig. 4-1.

Fig. 5-1 is the light channel structure stereographic map of the utility model second embodiment.

Fig. 5-2 is the B-B cut-open view among Fig. 5-1.

Fig. 6-1 is the light channel structure stereographic map of the utility model the 3rd embodiment.

Fig. 6-2 is the C-C cut-open view among Fig. 6-1.

Fig. 7-1 is the light channel structure stereographic map of the utility model the 4th embodiment.

Fig. 7-2 is the D-D cut-open view among Fig. 7-1.

Embodiment

Shown in Fig. 4-1 and Fig. 4-2, be light channel structure of the present utility model, comprise that a framework 10, is sheathed on housing 20 and at least one supporter 30 of framework 10 outside wall surface; Wherein this framework 10 is superimposed with each other by a left plate 11, right plate 12, top board 13 and base plate 14 and constitutes, and in this framework 10, form an optical channel 15, this left plate 11, right plate 12, top board 13 and base plate 14 its materials are glass, and can produce reflection, so all need be coated with the optical thin film that can make light generation reflection at the inside surface of left plate 11, right plate 12, top board 13 and base plate 14 for light is entered in the optical channel 15; This housing 20 is sheathed on the outside wall surface of framework 10, and when this framework 10 be shaped as rectangle or regular shape the time, this housing 20 is more easily made, this housing 20 is to adopt metal material, when this light channel structure during with the anchor clamps clamping, because metal shell 20 is coated on the outside of framework 10, therefore can bear pressure by metal shell 20, can prevent inner frame 10 distortion; And this at least one supporter 30 is located in the optical channel 15 of this framework 10, and its cross section is to establish according to the cross section of optical channel 15, and this supporter 30 is the light-permeable material, to avoid influencing reflection of light, makes light can pass through optical channel 15 smoothly; By above-mentioned contexture light channel structure of the present utility model.

Make framework 10 pinchings therebetween by housing 20 and supporter 30, and fixed frame 10 makes it can not produce distortion, thereby do not influence the reflex of light in optical channel 15, this fixed form is compared with existing gummed mode, does not have the problem existence that gummed mode glue when high temperature easily changes and makes the optical channel distortion; Utilize the design of metal shell 20 in addition, can increase the ability of bearing pressure, and make inner framework 10 unlikely distortion.

Below provide four preferred embodiments of the present utility model.

First embodiment:

Referring among Fig. 4-1 of the light channel structure stereographic map of the utility model first embodiment of Fig. 4-1 and Fig. 4-2 shown in the A-A cut-open view, wherein this light channel structure comprises that one is superimposed with each other and the framework that constitutes 10 and the optical channel 15 that forms by a left plate 11, right plate 12, top board 13 and base plate 14 in this framework 10, one housing 20 is sheathed on the outside wall surface of framework 10, and a supporter 30 is located in the optical channel 15 of this framework 10; Wherein the cross section of this top board 13 and base plate 14 is wide outside and narrow inside stepped, and the two ends of this top board 13 and base plate 14 all have groove 16, this left plate 11 and right plate 12 cross sections are rectangle, and its two ends respectively with groove 16 driving fit mutually of top board 13 and base plate 14, framework 10 with superimposed composition rectangle, and making optical channel 15 is a square-section, and the length of this left plate 11, right plate 12, top board 13 and base plate 14 is to match with the length of housing 20; And adopt a supporter 30 in the present embodiment, and its cross section is to be made as rectangle according to optical channel 15 cross sections, and its outside wall surface can with the internal face driving fit mutually of framework 10, this supporter 30 is provided in a side of the middle position of framework 10 and its length less than framework 10 length, and the length of this supporter 30 is to have enough supports and establish according to the inside that makes framework 10.

Second embodiment:

Referring among Fig. 5-1 of the light channel structure stereographic map of the utility model second embodiment of Fig. 5-1 and Fig. 5-2 shown in the B-B cut-open view, the element marking same label identical or suitable in the present embodiment with above-mentioned first embodiment, and present embodiment and the above-mentioned first embodiment difference are: adopt two supporter 30A in the present embodiment, and it equidistantly is configured in the optical channel 15, and the length of this supporter 30A is to have enough supports and establish according to the inside that makes framework 10.

The 3rd embodiment:

Referring among Fig. 6-1 of the light channel structure stereographic map of the utility model the 3rd embodiment of Fig. 6-1 and Fig. 6-2 shown in the C-C cut-open view, wherein this light channel structure comprises that one is superimposed with each other and the framework 10A that constitutes and the optical channel 15A, the housing 20A that form are sheathed on the outside wall surface of framework 10A by a left plate 11A, right plate 12A, top board 13A and base plate 14A in this framework 10A, and a supporter 30B is located in the optical channel 15A of this framework 10A.

Wherein this top board 13A and base plate 14A have identical square-section, reach left plate 11A and right plate 12A and have identical square-section, and the two ends of this top board 13A fit in the end inboard of left plate 11A and right plate 12A, and make this top board 13A, the outer rim of left plate 11A and right plate 12A is a straight line, this base plate 14A also is same as the end inboard that top board 13A mode fits in left plate 11A and right plate 12A in addition, framework 10A with superimposed composition rectangle, and making optical channel 15A is a square-section, this left plate 11A, right plate 12A, the length of top board 13A and base plate 14A matches with the length of housing 20A; Adopt a supporter 30B in the present embodiment, its cross section is to be made as rectangle according to optical channel 15A cross section, and its outside wall surface can with the internal face driving fit mutually of framework 10A, this supporter 30B is located at the middle position of framework 10A, and its length is less than framework 10A length, and the length of this supporter 30B has enough supports according to the inside that makes framework 10A and establishes.

The 4th embodiment:

Referring among Fig. 7-1 of the light channel structure stereographic map of the utility model the 4th embodiment of Fig. 7-1 and Fig. 7-2 shown in the D-D cut-open view, the element marking same label identical or suitable in the present embodiment with above-mentioned the 3rd embodiment, and present embodiment and above-mentioned the 3rd embodiment difference are: adopt two supporter 30C in the present embodiment, and it equidistantly is configured in the optical channel 15A, and the length of this supporter 30C is to have enough supports and establish according to the inside that makes framework 10A.

The above only is preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented with it, and promptly the equalization of being done according to the utility model claim generally changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims

1. a light channel structure comprises a framework (10), a housing (20) and at least one supporter (30), (30A), (30B), (30C), it is characterized in that:

This framework (10) is superimposed with each other and is constituted by a left plate (11), right plate (12), top board (13) and base plate (14), and forms a light in this framework (10)

Passage (15);

This housing (20) is sheathed on the outside wall surface of framework (10), (10A);

This supporter (30), (30A), (30B), (30C) be located in the optical channel (15), (15A) of this framework (10), (10A), and its cross section are to establish according to the cross section of optical channel (15), (15A).

2. light channel structure according to claim 1 is characterized in that, the shape of this framework (10), (10A) is best with the rectangle.

3. light channel structure according to claim 1 is characterized in that, this housing (20), (20A) are metal material.

4. light channel structure according to claim 1 is characterized in that, this supporter (30), (30A), (30B), (30C) are the best with the light-permeable material.

5. light channel structure according to claim 1, it is characterized in that, this top board (13) and base plate (14) cross section are wide outside and narrow inside stepped, and this top board (13) has groove (16) with the two ends of base plate (14), this left plate (11) and right plate (12) are the square-section, and its two ends respectively with groove (16) driving fit mutually of top board (13) and base plate (14).

6. light channel structure according to claim 1 is characterized in that, this top board (13A), base plate (14A), left plate (11A) and right plate (12A) cross section are rectangle.

7. light channel structure according to claim 1, it is characterized in that, can adopt two supporters (30A), (30C), and it equidistantly is disposed in the optical channel (15), (15A) of this framework (10), (10A), and the length of this supporter (30A), (30C) has enough supports according to the inside that makes framework (10), (10A) and establishes.