CN2497345Y - Light spot adjusting and reshaping mechanism in lattice a hologram making apparatus - Google Patents
Light spot adjusting and reshaping mechanism in lattice a hologram making apparatus Download PDFInfo
- Publication number
- CN2497345Y CN2497345Y CN 01235765 CN01235765U CN2497345Y CN 2497345 Y CN2497345 Y CN 2497345Y CN 01235765 CN01235765 CN 01235765 CN 01235765 U CN01235765 U CN 01235765U CN 2497345 Y CN2497345 Y CN 2497345Y
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- China
- Prior art keywords
- convex lens
- light
- dot matrix
- lens
- hurdle
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Abstract
The utility model discloses a spot adjustment and shaping mechanism of a lattice hologram making device, comprising a concave lens, a convex lens, a diaphragm, a motor and a guide stent, wherein, a screw rod and nut transmission mechanism are arranged on the guide stent, the screw rod is connected with a motor output axle, the concave lens is fixed on a nut, the convex lens and the diaphragm are fixed on a specular seat of the guide stent according to the imaging characteristics, a michimitsu hole of the diaphragm is square, and the concave lens, the convex lens and the diaphragm are sequentially arranged in the same light axle. The utility model can change the spot size and the spot shape to improve the whole brightness of the lattice hologram.
Description
The utility model relates to hot spot adjustment and the reshaping device in a kind of dot matrix hologram producing device.
Dot matrix hologram is made up of by certain regularly arranged tiny hot spot point a series of, distance between change interfering beam spot size and the adjacent light spot can change the sharpness of dot matrix hologram, distance between spot size and the adjacent light spot is more little, and the sharpness of dot matrix hologram is high more.United States Patent (USP) (U.S.6043913) discloses a kind of making dot matrix hologram device, used convex lens earlier the interfering beam of laser instrument output to be focused in this device, reach the spot size that the change light beam is incident upon photoetching hectograph surface by mobile convex lens again, its schematic diagram as shown in Figure 1.Because the hot spot of the interfering beam that laser instrument produces all is circular, and circular some hot spot is arranged mutually, between they are adjacent, can stay many dark gaps, therefore make that the dot matrix hologram overall brightness of making is lower, and single light spot shape, the application scenario of also having limited to dot matrix hologram; The size that changes hot spot in addition reaches by mobile convex lens, although spot size has changed like this, the one-tenth image focus of convex lens has departed from photoetching hectograph surface, thereby has also reduced the brightness of hot spot itself.
The purpose of this utility model is to provide the hot spot in a kind of dot matrix hologram producing device to adjust reshaping device, and this mechanism not only can change spot size but also can change the shape of hot spot.
For achieving the above object, the utility model comprises concavees lens, convex lens, Guang Lan, motor and rail brackets, described rail brackets is provided with screw rod, nut transmission mechanism, this screw rod is connected with motor output shaft, described concavees lens are fixed on the nut, and convex lens and light hurdle are fixed on by its imaging characteristic on the microscope base of rail brackets, and the light hole on this light hurdle is square, described concavees lens, convex lens, light hurdle are arranged in order and are positioned on the same optical axis.When the light beam that is positioned at same optical axis is injected concavees lens, the control motor drives screw rod, nut moves forward and backward concavees lens along optical axis direction, can change the size of laser beam diameter, that is be the size that changes the two beam interferometer beam and focus sizes that incide photoetching hectograph surface, after circular laser facula is through the light hurdle, promptly be shaped to square focus spot simultaneously.
As further improvement of the utility model, the light hole on described smooth hurdle is pentalpha, given shapes such as hexagon cellular shape.
The utility model has following advantage compared to existing technology: (1) is because the light hurdle has played the effect of shaping to hot spot, behind the laser facula process light hurdle of circle, promptly be shaped to square focus spot, square focus spot is arranged closelyr than circular light spot, reduce the dark crack that produces between each adjacent spots, obviously improved the overall brightness of dot matrix hologram; Also can be shaped as pentalpha simultaneously, given shapes such as hexagon cellular shape can be used for the secret occasion that some need character recognition, thereby improve the security performance of dot matrix hologram; (2) spot size is to realize by mobile concavees lens, and convex lens are fixed, therefore, can make convex lens become image focus to be accurately positioned in photoetching hectograph surface, thereby improves the brightness of hot spot itself.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the prior art constructions schematic diagram;
Fig. 2 is a structural drawing of the present utility model;
Fig. 3 is the schematic diagram that comprises dot matrix hologram producing device of the present utility model.
Shown in Fig. 2,3, the utility model comprises concavees lens L1, convex lens L2, light hurdle A, motor SM1 and rail brackets T, rail brackets is provided with screw rod F, nut S gear train, this screw rod is connected with motor output shaft, concavees lens are fixed on the nut, convex lens and light hurdle are fixed on by its imaging characteristic on the microscope base of rail brackets, can make convex lens become image focus to be accurately positioned in photoetching hectograph surface; The light hole on light hurdle is square, concavees lens, convex lens, the light hurdle is arranged in order and is positioned at same optical axis, adjust light beam LB that laser instrument sends and make it and concavees lens, the optical axis coincidence that convex lens and light hurdle are formed, the control motor drives screw rod and rotates, nut can move forward and backward concavees lens along optical axis direction, change the distance between concavees lens and the convex lens, thereby also changed the size of the laser beam diameter of injecting convex lens, that is be the size that changes the two beam interferometer beam and focus sizes that incide photoetching hectograph surface, behind the light hurdle of circular laser beam, promptly be shaped to square beam of light simultaneously through the light hole that is square, incide photoetching hectograph surface square focus spot, square focus spot is arranged closelyr than circular light spot, reduce the dark crack that produces between each adjacent spots, improved the overall brightness of dot matrix hologram.Above-mentioned smooth hurdle can be given shapes such as pentalpha, hexagon cellular shape by light hole, the dot matrix hologram of producing like this can be used for some secret occasions that need character recognition.
As shown in Figure 3, the schematic diagram that comprises dot matrix hologram producing device of the present utility model, utilize the process of the utility model making dot matrix hologram as follows: (1) is input to computer with the pattern that designs, the special software of making dot matrix hologram makes the resolution setting requirement of the size conforms pattern of two interfering beam hot spots according to the position that the motor SM1 in resolution setting control the utility model of layout moves concavees lens L1; (2), adjust the angle a between two interfering beams of position change of beam splitter in the beam split light-integrating subassembly or catoptron according to the color requirement of layout; (3), carry out the setting of controlled variable such as the displacement of grating orientation coding, time shutter, XY platform and speed according to the making effect requirements of layout; (4) computer is according to the pattern of input and above-mentioned setting, controlling the XY mobile platform in phase drives the photoetching hectograph and does that motor makes the plane of incidence of interfering beam make the make-and-break time of a rotation change and a shutter in the motion of two dimension, the beam split light-integrating subassembly, the interference lithography that makes laser beam carry out pointwise to the photoetching hectograph is till entire pattern is finished.
Claims (3)
1, hot spot adjustment and the reshaping device in a kind of dot matrix hologram producing device, it is characterized in that: comprise concavees lens, convex lens, Guang Lan, motor and rail brackets, described rail brackets is provided with screw rod, nut transmission mechanism, this screw rod is connected with motor output shaft, described concavees lens are fixed on the nut, convex lens and light hurdle are fixed on the microscope base of rail brackets by its imaging characteristic, the light hole on this light hurdle is square, described concavees lens, convex lens, light hurdle are arranged in order and are positioned on the same optical axis.
2, hot spot adjustment and the reshaping device in the dot matrix hologram producing device according to claim 1, it is characterized in that: the light hole on described smooth hurdle is pentalpha.
3, hot spot adjustment and the reshaping device in the dot matrix hologram producing device according to claim 1, it is characterized in that: the light hole on described smooth hurdle is hexagon cellular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01235765 CN2497345Y (en) | 2001-05-11 | 2001-05-11 | Light spot adjusting and reshaping mechanism in lattice a hologram making apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01235765 CN2497345Y (en) | 2001-05-11 | 2001-05-11 | Light spot adjusting and reshaping mechanism in lattice a hologram making apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2497345Y true CN2497345Y (en) | 2002-06-26 |
Family
ID=33648841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01235765 Expired - Fee Related CN2497345Y (en) | 2001-05-11 | 2001-05-11 | Light spot adjusting and reshaping mechanism in lattice a hologram making apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2497345Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903433A (en) * | 2017-02-21 | 2017-06-30 | 机械科学研究总院先进制造技术研究中心 | A kind of hot spot adjustable laser cladding head |
| CN111208620A (en) * | 2020-03-19 | 2020-05-29 | 北华航天工业学院 | Zoom lens for visual inspection |
-
2001
- 2001-05-11 CN CN 01235765 patent/CN2497345Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903433A (en) * | 2017-02-21 | 2017-06-30 | 机械科学研究总院先进制造技术研究中心 | A kind of hot spot adjustable laser cladding head |
| CN111208620A (en) * | 2020-03-19 | 2020-05-29 | 北华航天工业学院 | Zoom lens for visual inspection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020626 Termination date: 20100511 |