CN1177823A - Exposure device for cathode-ray tube face plate - Google Patents

Abstract

To provide an exposure device for a cathode ray tube for exposing a cathode ray tube panel of different size. This comprises a base frame; light source provided in a base frame; a moving frame provided in an upper side of the light source to form a first hole; a moving means moving the moving frame relative to a base frame; exposure lens provided between the light source and the moving frame to adjust an irradiation angle of light; a panel smaller than the first hole of the moving frame to be formed with a second hole corresponding to the first hole to be provided mountably/ demountably in the moving frame to be stably mounted therein and an auxiliary frame adjusting a distance to the light source. In the exposure device thus provided, the auxiliary frame is used, many panels of different size can be exposed quickly and easily.

Description

Exposure device for cathode-ray tube face plate

The present invention relates to a kind of exposure device that forms black net battle array (black martix) on the cathode ray tube (CRT) panel inner surface that makes, more specifically say, relate to the crt panel exposure device that a kind of crt panel that can make different size only just can expose easily with an exposure device.

Normally make and form black net battle array on the inner surface of crt panel with exposure device shown in Figure 1.This exposure device comprises: be located at the light source 3 on the pedestal 2, in order to the inner surface of irradiation panel 1; Be located at the exposure lens 4 between panel 1 and the light source 3, in order to the angle of the light of control directive panel 1; Movable stand 6 is in order to support panel 1; And mobile device, in order to move described movable stand 6.

Referring to Fig. 2, should adjust according to the size of panel 1 between panel 1 and the light source 3 apart from d.For example, for the panel of 50.8 centimetres (20 inches), between its panel 1 and the light source 3 must be apart from d greater than d for 35.6 centimetres of (14 inches) panels.

As seen from Figure 1, mobile device comprises: be fixed on the motor 11 on the pedestal 2; With 11 screw rods that are connected 12 of motor; Be fixed on the movable stand 6 with screw rod 12 nut engaged parts; Be fixed on the sliding part 14 on movable stand 6 basal surfaces; And be fixed on guide 15 on the pedestal 2 in order to guided slidable part 14.Mobile device with said structure can make movable stand 6 vertically moving around at screw rod by the revolving force of motor 11.

Three liners 7 be contained in a hole 5 on the movable stand 6 around so that place panel 1 thereon.The thickness of liner 7 be consider between light source 3 and the panel 1 apart from d after predetermined.

As everyone knows, panel 1 is moved by mobile device, so that the black net battle array 8 that forms corresponding to three kinds of colors is gone up on the surface within it.Panel 1 to be placed on another reason on the liner 7 and be difference for Pingdu between panel 1 lower surface of compensation contact movable stand 6 when being put into panel 1 on the movable stand 6 and movable stand 6 upper surfaces.

To 50.8 centimetres (20 inches) and 53.3 centimetres (21 inches) when panel exposes, there is not any problem in above-mentioned rotine exposure device.Just, after 50.8 centimetres panel is exposed during again to 53.3 centimetres panel exposure, as long as suitably thickening liner 7 just can be adjusted 53.3 centimetres panel and the distance between the light source 3.Yet, when after 35.6 centimetres of panel exposures, carrying out the exposure of 53.3 centimetres of panels, the thickness of liner 7 must increase greatly, the result, can enter many light the exposure device from the external world, thereby produce random scatters, and, the size in hole 5 also reduces relatively on the movable stand 6, and exposure process is gone wrong.

For the exposure device of routine, its movable stand 6 must be pulled down from pedestal 2, so that replace with the different movable stand of another size.Like this, when changing movable stand 6, also must dismantle around its miscellaneous part, so that will spend many time and labors.

The exposure device that the object of the present invention is to provide a kind of structure to improve, its can be in very short time easily panel to various sizes expose.

For achieving the above object, cathode ray tube (CRT) panel exposure device of the present invention comprises: pedestal; Be contained in the light source on the pedestal; Be contained in the movable stand of light source top, first hole is arranged on the frame; Move the mobile device of described movable stand with respect to pedestal; Be contained in the exposure lens between light source and the movable stand, in order to the angle of control light from light source irradiation; Additional body has second hole corresponding to first hole on the movable stand, and second hole is less than first hole, and the attached frame support is contained on the movable stand, and is dismountable, so that adjust the panel put thereon and the distance between the light source.

Have, the additional body of crt panel exposure device can be replaced with other additional body again, so that according to the different size change panel of panel and the distance between the light source.

Also have, mobile device comprises: be contained in the motor on the pedestal; The screw rod that is connected with motor shaft; Be contained on the movable stand with screw rod nut engaged part; Be contained in the sliding part on the movable stand; And be contained on the pedestal in order to guide at screw rod longitudinal guide sliding part.

Exposure device of the present invention with said structure can be finished the exposure work of different size panel at short notice easily.

To the detailed description of most preferred embodiment of the present invention, can clearer understanding be arranged in conjunction with the drawings to objects and advantages of the present invention.Among the figure:

Fig. 1 is the perspective view of rotine exposure device;

Fig. 2 is the schematic cross sectional views of exposure device shown in Figure 1;

Fig. 3 and Fig. 4 are the perspective views of exposure device of the present invention.

Exposure device shown in Figure 3 comprises: be contained in the light source 130 on the pedestal 120, in order to the inner surface of irradiation panel 101; Be contained in the exposure lens 140 between panel 101 and the light source 130, in order to the light angle of control directive panel 101; Movable stand 160 is in order to support panel 101; And mobile device, in order to mobile movable stand 160.

As mentioned above, according to the difference of panel 101 sizes, panel 101 is also different with distance (d among Fig. 2) between the light source 130.For example, for 35.6,50.8 and 53.3 centimetres panel, they should be different apart from d.

Different with the exposure device of routine, the characteristics of exposure device of the present invention have been an additional body 161.Just, suitably adjust distance between panel 101 and the light source 130, should be able to change and install the additional body 161 of different-thickness easily for corresponding different size panel 101.

Size according to the panel 101 that will expose is selected one of a plurality of additional body 161.For example, additional body 161 shown in Figure 3 is used for 35.6 centimetres or 38.1 centimetres of (15 inches) panels are exposed; Additional body 161 shown in Figure 4 ' enlarged the distance of panel 101 from light source 130, it is used for 50.8 or 53.3 centimetres of panels are exposed.

Referring to Fig. 3 and Fig. 4, additional body 161 and 161 ' second hole 162 and 162 ' on every side adorned respectively three liners 170 and 170 '.Panel 101 be placed on respectively liner 170 and 170 ' on.Liner 170 and 170 ' thickness be to consider that light source 130 is to the distance of panel 101 and predetermined.

Movable stand 160 has first hole 163, and additional body 161 and 161 ' respectively have second hole 162 and 162 ' and, second hole is in the top in first hole 163.So the light that sends from light source 130 passes first and second holes 163 and 162 (162 ') directive panel 101, wherein the size in second hole 162 (162 ') is less than the size in first hole 162.

With additional body 161 and 161 ' be fixed on the movable stand 160, panel 101 then is placed on the additional body with a plurality of screws 164.So, when movable stand 160 acts on the pedestal 120 when mobile additional body 161 and 161 ' just move with movable stand 160 together with panel 101 by mobile device.

Mobile device comprises: be fixed on the motor 111 on the pedestal 120; The screw rod 112 that is connected with the axle of motor 111; Be fixed on the movable stand 160 with screw rod 112 nut engaged parts 113; Be fixed on the sliding part 114 of movable stand 160 lower surfaces; And be fixed on the guide 115 that is used for guided slidable part 114 on the pedestal 120.Can make movable stand 160 by the revolving force of motor 111 and vertically moving around with mobile device at screw rod 112 with said structure.

In exposure device of the present invention, in the time will exposing to 50.8 centimetres panel after 35.6 centimetres the panel exposure, should be with additional body shown in Figure 4 161 ' replacement additional body 161 shown in Figure 3.Also have, when exposure object when 50.8 centimetres panel changes 53.3 centimetres panel into, increase liner 170 ' thickness with the distance of 130 to 53.3 centimetres of panels of suitable adjustment light source.

As mentioned above, exposure device of the present invention can expose to the panel of different size with the additional body of the size of having nothing in common with each other at short notice easily.

Claims (4)

1. cathode ray tube (CRT) panel exposure device comprises:

Pedestal;

Be contained in the light source on the described pedestal;

Be contained in the movable stand of described light source top, first hole is arranged on the frame;

Mobile device is used to make described movable stand to move with respect to described pedestal;

Be contained in the exposure lens between described light source and the described movable stand, in order to the angle of control from the light of described light source ejaculation;

Additional body has second hole corresponding to first hole on the described movable stand, and second hole is less than first hole, and this additional body is contained on the described movable stand, and is dismountable, so that adjust the panel put thereon and the distance of described light source.

2. crt panel exposure device as claimed in claim 1 is characterized in that, described additional body can be replaced by another additional body, so that change distance between this panel and the described light source according to the size of panel.

3. crt panel exposure device as claimed in claim 1 is characterized in that, described mobile device comprises:

Be contained in the motor on the described pedestal;

The screw rod that is connected with the axle of described motor;

Be contained on the described movable stand and described screw rod nut engaged part;

Be contained in the sliding part on the described movable stand; And

Be contained on the described pedestal in order to guide at the described sliding part of described screw rod longitudinal guide.

4. crt panel exposure device as claimed in claim 2 is characterized in that, described mobile device comprises:

Be contained in the motor on the described pedestal;

The screw rod that is connected with the axle of described motor;

Be contained on the described movable stand and described screw rod nut engaged part;

Be contained in the sliding part on the described movable stand; And

Be contained on the described pedestal in order to guide at the described sliding part of described screw rod longitudinal guide.

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