CN202044247U - Micro-display slit device - Google Patents
Micro-display slit device Download PDFInfo
- Publication number
- CN202044247U CN202044247U CN2011201359475U CN201120135947U CN202044247U CN 202044247 U CN202044247 U CN 202044247U CN 2011201359475 U CN2011201359475 U CN 2011201359475U CN 201120135947 U CN201120135947 U CN 201120135947U CN 202044247 U CN202044247 U CN 202044247U
- Authority
- CN
- China
- Prior art keywords
- little apparent
- chip
- unit
- light
- described little
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a micro-display slit device, which relates to the optical instrument field and aims to solve the problem of installing and using inconvenience of a slit applied in a slit lamp. The micro-display slit device comprises a light source (1), a collimating unit (2), a polarizing unit (3), a micro-display chip (4), a micro-display chip driving unit (5), a polarization detecting unit (6) and a projecting unit (7). A slit formed by driving the micro-display chip (4) through the micro-display chip driving unit (5) replaces a slit cutter in a conventional slit lamp to make the installation of the slit simplified and the adjustment of the size, the shape, the light intensity and the color of a formed image more convenient. The micro-display slit device in the utility model is mainly applied in a slit lamp microscope for ophthalmologic examination.
Description
Technical field
This utility model relates to a kind of little apparent crack device, especially designs a kind of little apparent crack device that is applied to slit lamp microscope.
Background technology
The fissure system of current slit lamp generally adopts blade to switch the width of regulating the crack, and crack length and spot size are realized by the diaphragm switched system again, and color transformed employing light filter switched system is realized.These switched system required precision height, production, installation, difficult operation the when using.The manufacturing process difficulty is big, and cost is higher relatively, and the size of attainable crack and hot spot, pattern, color, brightness kind are less, and the toning scheme is also comparatively original.
Specifically there is following defective in the fissure system technology of existing slit lamp:
1. complicated integral structure, element precision is strict, and producting process difficulty is big, the manufacturing cost height.
2. install and adjust when using and be difficult for.
3. the crack is opened employing and is rotated method of driving around fixed axis, and crack blade make position and deployed position height is variant sometimes, causes institute to become the optical quality decline of crack image.
4. structure space is narrow and small, and switchable filter disc kind is few, and attainable hot spot color light kind is few.
5. structure space is narrow and small, and switchable aperture stop size kind is few, and the kind of attainable light spot shape and size is also less.
And, utilize the little apparent chip of numeral as the crack pattern and to its imaging along with the development of the little apparent chip technology of modern digital, the many disadvantages that is expected to realize the effect identical and remedies existing machinery switched system technology with the crack of existing slit lamp.
Do not see the crack device that overcomes above defective in the market yet, can whole crack blade system, diaphragm switched system and the light filter switched system that substitutes and simplify slit lamp the Lights section.
The utility model content
The purpose of this utility model is to overcome the deficiency of existing fissure system structure, and the combination by optics and microelectric technique provides the design of a kind of new crack, effectively improves complexity, reliability and the ease of use of slit lamp system structure.
Operation principle of the present utility model is illumination to be provided for described little apparent chip 4 with described light source 1, wherein, described little apparent chip 4 comprises that digital light processing DLP chip, liquid crystal display LCD chip, liquid crystal on silicon show that the LCOS chip can use, control light and can pass through by controlling described little apparent chip 4, form required crack pattern, by described projecting unit 7 the crack pattern of described little apparent chip 4 is displayed again.The size of crack pattern, shape, color and brightness can realize by the adjusting of the 5 pairs of described little apparent chips 4 in described little apparent chip drives unit.
Technical solutions of the utility model are: device comprises light source 1, projecting unit 7, also is provided with little apparent chip 4, little apparent chip drives unit 5; Described little apparent chip 4 is arranged on the light path between described light source 1 and the described projecting unit 7; After described little apparent chip 4 connects described little apparent chip drives unit 5 and driven by it, form the crack that the zone can be different on described little apparent chip 4, the part of the inside, crack can be given described projecting unit 7 light transmission or reflection on described little apparent chip 4.
Can also be provided with collimation unit 2; Described collimation unit 2 is arranged on the light path between described light source 1 and the described little apparent chip 4.
Described little apparent chip 4 can be that digital light is handled the DLP chip; The direction of reflection ray is controlled by the reflection angle of controlling the small lens array in described little apparent chip 4 in described little apparent chip drives unit 5, with shape, size and the light intensity of regulating final formation image.
Can also be provided with inclined to one side unit 3; Described inclined to one side unit 3 is arranged on the light path between described light source 1 and the described little apparent chip 4; Described inclined to one side unit 3 can be polaroid or polarization splitting prism.
Can also be provided with analyzing unit 6 on the light path between described little apparent chip 4 and the described projecting unit 7; The inspection of described analyzing unit 6 direction of shaking is vertical with the polarization direction of described inclined to one side unit 3, so that the picture contrast that light became is better; Described analyzing unit 6 can be a polaroid; Can change by the direction of rotation angle of the little apparent chip unit liquid crystal molecule of control, with the image of final formation different light intensity.
Described little apparent chip 4 can be a liquid crystal display LCD chip; Described little apparent chip drives unit 5 can be liquid crystal display LCD chip drives unit; The direction of rotation of the liquid crystal molecule array in the described little apparent chip 4 of described little apparent chip drives unit 5 controls is controlled the break-make of transmission-polarizing light, and vertically changes the polarization direction, with size, shape and the light intensity of regulating final formation image.
Described little apparent chip 4 can be that liquid crystal on silicon shows the LCOS chip; Described little apparent chip drives unit 5 can be that liquid crystal on silicon shows LCOS chip drives unit; The direction of rotation of the liquid crystal molecule array in the described little apparent chip 4 of described little apparent chip drives unit 5 controls is controlled the break-make of polarization by reflection light, and vertically changes the polarization direction, with size, shape and the light intensity of regulating final formation image.
On the incident of described little apparent chip 4 and emitting light path, can be provided with polarization splitting prism 8, simultaneously incident ray and emergent ray are realized incidence polarizing and outgoing analyzing.
Can be provided with light filter in described little apparent chip 4; Perhaps on the light path of described little apparent chip 4 incidents or outgoing, increase the image of light filter with final formation different colours.
Can also be provided with rotation colour wheel 9 on the light path of outside, described little apparent chip 4 both sides, described rotation colour wheel 9 is provided with the light filter of several different colours; Also be provided with rotation colour wheel driver element 10 and connect described rotation colour wheel 9 and drive its rotation, described rotation colour wheel driver element 10 can also carry out signal with described little apparent chip drives unit 5 and be connected; By control is coordinated in described little apparent chip drives unit 5 and described rotation colour wheel driver element 10, when the light filter of a certain color faces described light source 1 on the described rotation colour wheel 9, described little apparent chip drives unit 5 drives described little apparent chip 4 and is adjusted to a certain transmission and reflectance to produce the light intensity of a certain respective value, the light intensity difference and the proportioning of the light filter correspondence of different colours are adjustable, the different and adjustable image with final formation color.
This utility model compared with prior art has significant advantage and beneficial effect, is embodied in the following aspects:
1. make the slit lamp overall structure simplify, production cost reduces.
2. the high and low position of little apparent element can not change, thereby has guaranteed the reliable and stable of crack picture element.
3. can realize arbitrary graphic pattern, be not limited to what the restriction of diaphragm sheet kind.
4. can realize the multicolour of stepless toning, not be subjected to what the restriction of light filter kind.
5. can regulate the brightness of crack hot spot by the little apparent chip of control, be not limited to by regulating light source power and regulate the brightness of crack hot spot.
6. the adjusting operation when installing and using is very simple, and very accurate.
Description of drawings
Fig. 1 is that digital light is handled the little apparent crack of DLP chip device embodiment sketch map, among Fig. 1: light source 1, collimation unit 2, little apparent chip 4, little apparent chip drives unit 5, projecting unit 7.
Fig. 2 is the little apparent crack of a liquid crystal display LCD chip device embodiment sketch map, among Fig. 1: light source 1, collimation unit 2, an inclined to one side unit 3, little apparent chip 4, little apparent chip drives unit 5, analyzing unit 6, projecting unit 7.
Fig. 3 is that liquid crystal on silicon shows the little apparent crack of LCOS chip device embodiment sketch map, among Fig. 1: light source 1, collimation unit 2, an inclined to one side unit 3, little apparent chip 4, little apparent chip drives unit 5, projecting unit 7, polarization splitting prism 8.
Fig. 4 is that digital light is handled the little apparent crack of DLP chip device toning embodiment sketch map, among Fig. 1: light source 1, collimation unit 2, little apparent chip 4, little apparent chip drives unit 5, projecting unit 7, rotation colour wheel 9, rotation colour wheel driver element 10.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is further elaborated again:
Fig. 1 is that digital light is handled the little apparent crack of DLP chip device embodiment sketch map, and described little apparent chip 4 adopts digital light to handle the DLP chip, and 5 controls of described little apparent chip drives unit also form the crack on described little apparent chip 4.The light that described light source 1 sends arrives described little apparent chip 4 by 2 backs, described collimation unit, in fact small illuminator array in the crack becomes a parallel light-struck area source, and the angle of the small illuminator of each above it can be by 5 controls of described little apparent chip drives unit; Whether and how many purposes by described projecting unit 7 are arranged the reflection direction of the small illuminator array by the described little apparent chip 4 of described little apparent chip drives unit 5 control reaches control light, just formed different crack patterns on described little apparent chip 4, small illuminator array in the crack reflects light to described projecting unit 7 imagings, reflection gives the light of described projecting unit 7 how just bright, reflects few just not brightly; Small illuminator array outside the crack reflexes to light outside the described projecting unit 7 can not form image.
Fig. 2 is the little apparent crack of a liquid crystal display LCD chip device embodiment sketch map, and described little apparent chip 4 adopts liquid crystal display LCD chip, and 5 controls of described little apparent chip drives unit also form the crack on described little apparent chip 4.The light that described light source 1 sends by described collimation unit 2 and described inclined to one side unit 3 after, the polarization light of described inclined to one side unit 3 formation arrives described little apparent chip 4, the break-make of light is controlled in the direction of rotation realization of controlling the liquid crystal molecule of described little apparent chip 4 by described little apparent chip drives unit 5, demonstrate different crack patterns, in this transmission process, the polarization direction has 90 ° variation; If the direction of rotation controlled change of the liquid crystal molecule of described little apparent chip 4, the brightness of emergent ray also can change; The part that needs to form the crack on described little apparent chip 4 just need be controlled the direction of rotation of its liquid crystal molecule, makes emergent ray bright, does not need to form the part in crack, just need control the direction of rotation of its liquid crystal molecule, makes emergent ray very dark.The light that passes described little apparent chip 4 becomes slit image by described projecting unit 7 backs again, thereby realizes the crack image of different sizes, shape according to the difference of input control signal; Can also be provided with analyzing unit 6 on the light path of described little apparent chip 4 back, described analyzing unit can increase the contrast of the pattern that forms, and the spuious polarized light of elimination.
Fig. 3 is that liquid crystal on silicon shows the little apparent crack of LCOS chip device embodiment sketch map, and described little apparent chip 4 adopts liquid crystal on silicon to show the LCOS chip, and 5 controls of described little apparent chip drives unit also form the crack on described little apparent chip 4.Also be provided with polarization splitting prism 8, the light that described light source 1 sends by described collimation unit 2 and described inclined to one side unit 3 after, the polarization light of described inclined to one side unit 3 formation at first arrives described polarization splitting prism 8, described polarization splitting prism 8 is with the P light transmission, and give described little apparent chip 4 the S luminous reflectance, once more by described polarization splitting prism 8, described projecting unit 7 is given in refraction then to described little apparent chip 4 with the S luminous reflectance and after being converted into P light.
Fig. 4 is that digital light is handled the little apparent crack of DLP chip device toning embodiment sketch map.
The light that described light source 1 sends passes through the rotation colour wheel 9 colour wheel colour filters of high speed rotating again by behind the described collimation unit 2, also is provided with described rotation colour wheel driver element 10 connections and drives described rotation colour wheel 9.When described little apparent chip 4 adopted digital light to handle the DLP chips, the reflection direction control light of the micro mirror array by controlling described little apparent chip 4 was by the light intensity of described projecting unit 7.By controlling the reflection direction of described little apparent chip 4 micro mirrors, cooperate the rotation of control colour wheel, the proportioning of the light of multiple color be can realize, and then the toning and the brightness adjustment of crack hot spot realized by described projecting unit 7.
Claims (10)
1. little apparent crack device comprises light source (1), projecting unit (7), it is characterized in that, also is provided with little apparent chip (4), little apparent chip drives unit (5); Described little apparent chip (4) is arranged on the light path between described light source (1) and the described projecting unit (7); Described little apparent chip (4) connects described little apparent chip drives unit (5) and by its driving.
2. little apparent crack according to claim 1 device is characterized in that, can also be provided with collimation unit (2); Described collimation unit (2) is arranged on the light path between described light source (1) and the described little apparent chip (4).
3. little apparent crack according to claim 1 and 2 device is characterized in that, described little apparent chip (4) can be that digital light is handled the DLP chip.
4. little apparent crack according to claim 1 and 2 device is characterized in that, can also be provided with inclined to one side unit (3); Described inclined to one side unit (3) is arranged on the light path between described light source (1) and the described little apparent chip (4); Described inclined to one side unit (3) can be polaroid or polarization splitting prism.
5. little apparent crack according to claim 4 device is characterized in that described little apparent chip (4)
And can also be provided with analyzing unit (6) on the light path between the described projecting unit (7); The inspection of described analyzing unit (6) direction of shaking is vertical with the polarization direction of described inclined to one side unit (3); Described analyzing unit (6) can be a polaroid.
6. little apparent crack according to claim 4 device is characterized in that described little apparent chip (4) can be a liquid crystal display LCD chip; Described little apparent chip drives unit (5) can be liquid crystal display LCD chip drives unit; The direction of rotation of the liquid crystal molecule array in described little apparent chip drives unit (5) described little apparent chip of control (4) is controlled the break-make of transmission-polarizing light.
7. little apparent crack according to claim 4 device is characterized in that, described little apparent chip (4) can be that liquid crystal on silicon shows the LCOS chip; Described little apparent chip drives unit (5) can be that liquid crystal on silicon shows LCOS chip drives unit; The direction of rotation of the liquid crystal molecule array in described little apparent chip drives unit (5) described little apparent chip of control (4) is controlled the break-make of polarization by reflection light.
8. little apparent crack according to claim 7 device is characterized in that, can be provided with polarization splitting prism (8) on the incident of described little apparent chip (4) and emitting light path.
9. little apparent crack according to claim 1 device is characterized in that, can be provided with light filter in described little apparent chip (4); Perhaps on the light path of described little apparent chip (4) incident or outgoing, increase light filter.
10. little apparent crack according to claim 1 device is characterized in that, can also be provided with rotation colour wheel (9) on the light path of described little apparent chip (4) outside, both sides, and described rotation colour wheel (9) is provided with the light filter of several different colours; Also be provided with rotation colour wheel driver element (10) and connect described rotation colour wheel (9) and drive its rotation, described rotation colour wheel driver element (10) can also carry out signal with described little apparent chip drives unit (5) and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201359475U CN202044247U (en) | 2011-05-03 | 2011-05-03 | Micro-display slit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201359475U CN202044247U (en) | 2011-05-03 | 2011-05-03 | Micro-display slit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202044247U true CN202044247U (en) | 2011-11-23 |
Family
ID=44984574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201359475U Expired - Lifetime CN202044247U (en) | 2011-05-03 | 2011-05-03 | Micro-display slit device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202044247U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102499632A (en) * | 2012-01-05 | 2012-06-20 | 沈激 | Ocular anterior segment detection and illumination system |
| WO2012149885A1 (en) * | 2011-05-03 | 2012-11-08 | 上海美沃精密仪器有限公司 | A microscopic slit system and method |
| CN104439723A (en) * | 2014-11-10 | 2015-03-25 | 苏州大学 | Laser boring method and device |
| US20150085254A1 (en) * | 2013-09-26 | 2015-03-26 | Topcon Medical Laser Systems, Inc. | Micro-Display Based Slit Lamp Illumination System |
| CN106236010A (en) * | 2016-07-19 | 2016-12-21 | 重庆康华瑞明科技股份有限公司 | A kind of Fracture Width motorized adjustment examination with slitlamp microscope instrument functional unit device |
| US11116663B2 (en) | 2018-01-19 | 2021-09-14 | Iridex Corporation | System and method for a patient-invisible laser treatment alignment pattern in ophthalmic photomedicine |
-
2011
- 2011-05-03 CN CN2011201359475U patent/CN202044247U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012149885A1 (en) * | 2011-05-03 | 2012-11-08 | 上海美沃精密仪器有限公司 | A microscopic slit system and method |
| CN102499632A (en) * | 2012-01-05 | 2012-06-20 | 沈激 | Ocular anterior segment detection and illumination system |
| US20150085254A1 (en) * | 2013-09-26 | 2015-03-26 | Topcon Medical Laser Systems, Inc. | Micro-Display Based Slit Lamp Illumination System |
| CN104439723A (en) * | 2014-11-10 | 2015-03-25 | 苏州大学 | Laser boring method and device |
| CN104439723B (en) * | 2014-11-10 | 2016-03-09 | 苏州大学 | A kind of laser boring method and device thereof |
| CN106236010A (en) * | 2016-07-19 | 2016-12-21 | 重庆康华瑞明科技股份有限公司 | A kind of Fracture Width motorized adjustment examination with slitlamp microscope instrument functional unit device |
| CN106236010B (en) * | 2016-07-19 | 2018-12-25 | 重庆康华瑞明科技股份有限公司 | A kind of Fracture Width motorized adjustment examination with slitlamp microscope instrument functional unit device |
| US11116663B2 (en) | 2018-01-19 | 2021-09-14 | Iridex Corporation | System and method for a patient-invisible laser treatment alignment pattern in ophthalmic photomedicine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202044247U (en) | Micro-display slit device | |
| CN102768403A (en) | Micro-display slit system and micro-display slit method | |
| CN100498501C (en) | Lighting device and projector | |
| JP3823659B2 (en) | projector | |
| CN109100866A (en) | A kind of vehicle-mounted AR-HUD optical system based on liquid crystal polarized direction rotator | |
| US20080165401A1 (en) | Two Dimensional Image Forming Device | |
| WO2006090681A1 (en) | Two dimensional image forming device | |
| WO2015133425A1 (en) | Scanning display device | |
| JP2009216843A (en) | Projection type display device | |
| CN108572504A (en) | Projection system | |
| CN106125304B (en) | It can Wearable display device | |
| CN101663613A (en) | Laser backside illumination device and liquid crystal display device | |
| CN1246722C (en) | Scrolling unit, color illuminating system, and projection system using the scrolling unit | |
| CN1977543A (en) | Transflective color recovery | |
| TWI444750B (en) | Color wheel module for use in a projector apparatus, projector apparatus, and method of switching display for a stereoscopic image or a flat image | |
| CN209149051U (en) | Composite phase conversion element and projection arrangement | |
| CN101377612B (en) | Projector and contrast regulating device thereof | |
| JP5298698B2 (en) | Projection display | |
| KR101171300B1 (en) | DMD 3D Projector | |
| JP2004126518A (en) | Projection type display device | |
| JP2005309125A (en) | Reflection type liquid crystal illumination optical system and picture display optical system | |
| JP2004139017A (en) | Color separation light guide, cyclically rotating color adjustment device, cyclically rotating color adjustment unit and picture display device | |
| CN218213618U (en) | Monocular narrow-band multiband confocal imaging system | |
| CN218272928U (en) | Binocular narrowband multiband confocal imaging system | |
| CN110764356A (en) | DLP projection system and method for enhancing dynamic contrast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 200237 Shanghai city Minhang District Chunshen Road 1985 Lane 69 Building No. 2 A District Patentee after: Shanghai MediWorks Precision Instruments Co., Ltd. Address before: 200233 Shanghai Road, Guiping, No. 680 Venture Center building, room 33, building 817, room Patentee before: Shanghai MediWorks Precision Instruments Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |
|
| CX01 | Expiry of patent term |