CN201828885U - Thin-type optical indicating device - Google Patents
Thin-type optical indicating device Download PDFInfo
- Publication number
- CN201828885U CN201828885U CN2010200363252U CN201020036325U CN201828885U CN 201828885 U CN201828885 U CN 201828885U CN 2010200363252 U CN2010200363252 U CN 2010200363252U CN 201020036325 U CN201020036325 U CN 201020036325U CN 201828885 U CN201828885 U CN 201828885U
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- lens
- light
- reflecting surface
- indicating device
- light source
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Abstract
The utility model discloses a thin-type optical indicating device, which comprises a light source, a lens for transmitting light rays emitted by the light source, and an photosensitive chip; the lens comprises a lighting light path and an imaging light path, wherein, the lighting light path comprises a spherical face arranged on the surface of the lens, which is opposite to the light source, and the light source is arranged in the center of the spherical face; light rays emitted by the light source enter into the lens in the way of being perpendicular to the spherical face; and the imaging light path comprises a reflecting face for changing the transmission direction of reflection rays into horizontal direction and further transmitting the reflection rays to the photosensitive chip. In this way, light rays emitted by the light source enter into the lens in the way of being perpendicular to the spherical face, so that the optical transmissivity is ensured to be the maximum, and the utilization efficiency of light rays emitted by the light source can be improved; and then the transmission direction of reflection rays is changed into horizontal direction through the reflecting face, so that the height of the optical indicating device can be reduced favorably.
Description
[technical field]
The relevant a kind of optical indicating device of the utility model is meant to be applied on the electronic installation in order to control the thin type optical indicating device that screen cursor moves especially.
[background technology]
Mouse, Trackpad and trace ball are one of human interface devices the most commonly used, and the problem that the said equipment exists is that volume is big, cost is higher and complex structure, be not easy to be installed in as on the portable electron devices such as mobile phone, certainly industry also has on the portable electron devices such as touch screen technology being introduced mobile phone, but because the touch-screen cost is higher relatively, and environment for use and mode of operation are had relatively high expectations, thereby also limited range of application.For the problems referred to above, industry is also developed and is utilized the optical image treatment technology to develop to utilize fingerprint etc. to realize control to the electronic installation screen cursor, but existing structure is higher at whole height, thereby can not effectively this equipment be applied on the electronic installation (as thin type mobile phone etc.) of thin type, and existing structure light path design is comparatively complicated, utilization ratio to light emitted light is not high, thereby influences the quality of optical image and the power consumption of light source.
[utility model content]
The purpose of this utility model is to provide a kind of thin type optical indicating device, and it is by the structure arrangement of various elements and the design of light path, to overcome the higher and defective not high to the utilization ratio of light emitted light of existing optical indicating device whole height.
For achieving the above object, the utility model thin type optical indicating device comprises the lens and the sensitive chip of a light source, transmission light source emission light, these lens comprise an illumination path and imaging optical path, wherein this illumination path comprises a sphere, this sphere is located at the surface of the relative light source of lens, and light source is arranged at the center of this sphere, the light of light emitted is incident in the lens perpendicular to sphere, and the imaging light path comprises the reflection ray transmission direction is changed into horizontal direction and further transferred to the reflecting surface of sensitive chip.
According to above-mentioned principal character, these lens are provided with the hyperboloid reflecting surface on another surface of contiguous sphere, and be provided with transmission plane at the opposite side relative with this hyperboloid reflecting surface, through this hyperboloid reflecting surface reflection, the directional light that is perpendicular to transmission plane penetrates from the light of Homology of Sphere.
According to above-mentioned principal character, this thin type optical indicating device is provided with a navigation panel above lens, from the parallel rays of the ejaculation of transmission plane through the refraction of navigation panel after, uniformly dispersing is at the navigation panel surface.
According to above-mentioned principal character, this imaging optical path comprises first and second reflecting surface, is transferred to second reflecting surface by the light of target reflection through first reflecting surface reflection back along continuous straight runs, and second reflecting surface is reflected into second direction with light.
According to above-mentioned principal character, between this first reflecting surface and second reflecting surface, be provided with a non-spherical lens.
According to above-mentioned principal character, these lens are provided with a location structure between first reflecting surface and second reflecting surface, and this non-spherical lens is mounted on the lens by this location structure.
According to above-mentioned principal character, wherein this light source and sensitive chip all are mounted on the circuit board, and these lens are arranged at sensitive chip and light source top.
According to above-mentioned principal character, the mode that this light source is pasted with the surface is installed on the circuit board.
According to above-mentioned principal character, this circuit board is a flexible printed circuit board, and this flexible printed circuit board one end is provided with the interface that is connected with the electronic installation main circuit board that uses this thin type optics indicating module.
According to above-mentioned principal character, this navigation panel and lens are whole a setting.
Compared with prior art, the utility model is by being provided with a sphere on lens, and make light source be arranged at the center of this sphere, so the light of light emitted is incident in the lens perpendicular to sphere, so can guarantee optical transmission rate maximum, thereby improve utilization ratio, by reflecting surface horizontal direction is changed in the reflection ray transmission direction afterwards, so can be beneficial to the height that reduces this optical indicating device light emitted light.
[description of drawings]
Fig. 1 is for implementing the schematic perspective view of optical indicating device of the present utility model.
Fig. 2 is the schematic perspective view of optical indicating device one lens shown in Figure 1.
Fig. 3 is the schematic perspective view of another lens of optical indicating device shown in Figure 1.
Fig. 4 is the synoptic diagram of the illumination path of optical indicating device shown in Figure 1.
Fig. 5 is the synoptic diagram of the imaging optical path of optical indicating device shown in Figure 1.
[embodiment]
See also Fig. 1 to shown in Figure 5, for implementing the three-dimensional assembly diagram of optics indicating module of the present utility model, this thin type optical indicating device 1 comprises the lens 11 and the sensitive chip 12 of light source 10, transmission light source 10 emission light.
Wherein this light source 10 and sensitive chip 12 all are mounted on the circuit board 13 (as shown in Figure 4) and with this circuit board 13 and electrically connect, in the specific implementation, this light source 10 can be LED or laser, and being preferably this light source 10 is to be installed on the circuit board 13 by surperficial technology for applying.And this circuit board 13 can be a printed circuit board (PCB), it also can be flexible printed circuit board, and these circuit board 13 1 ends can be provided with the interface that is connected with the circuit board (not shown) of the electronic installation that uses this thin type optical indicating device 1, as golden finger or electric connector etc.Certainly, this circuit board 13 can be and use the circuit board of the electronic installation of this thin type optical indicating device 1, and promptly light source 10 and sensitive chip 12 directly are mounted on the circuit board of electronic installation.
See also Fig. 2 and shown in Figure 4, these lens 11 are arranged at sensitive chip 12 and light source 10 tops, these lens 11 are made by the transparent plastic material moulding when implementing, comprise an illumination path 110 and imaging optical path 111, wherein this illumination path 110 comprises a sphere 112, this sphere 112 is located at the surface of lens 11 relative light sources 10, and light source 10 is arranged at the center of this sphere 112, in addition, these lens 11 are provided with hyperboloid reflecting surface 113 on another surface of contiguous sphere 112, and be provided with transmission plane 114 at the opposite side relative with this hyperboloid reflecting surface 113, so the light of light source 10 emissions just can be incident in the lens 11 perpendicular to sphere 112, thereby keep higher light transmittance, afterwards through 113 reflections of hyperboloid reflecting surface, the directional light that also is perpendicular to transmission plane 114 penetrates, also can keep higher light transmittance, moreover, this thin type optics indicating module 1 is provided with a navigation panel 115 in transmission plane 114 1 sides, from the parallel rays of the ejaculation of transmission plane 114 through 115 refractions of navigation panel after, uniformly dispersing is on navigation panel 115 surfaces.
See also shown in Figure 5, imaging optical path 111 comprises first reflecting surface 116 and second reflecting surface 117, the light that is radiated at navigation panel 115 surfaces through workplace (as finger, not shown) reflection back sees through first reflecting surface, 116 reflection back along continuous straight runs and transfers to second reflecting surface 117, and second reflecting surface 117 is reflected into this light along second direction and transmits, further shine again on sensitive chip 12 to form image, second direction is the direction vertical with horizontal direction in the present embodiment, and this second direction also is other directions according to designing requirement certainly.Preferably, implement optical indicating device 1 of the present utility model and also comprise one second lens 14 (as shown in Figure 3), these second lens 14 comprise a non-spherical lens 118, this non-spherical lens 118 is located between first reflecting surface 116 and second reflecting surface 117, promptly expose to again on second reflecting surface 117 after by this non-spherical lens 118 from the light of first reflecting surface 116 reflection, with and aberration that can corrective system.In the specific implementation, first reflecting surface 116 and second reflecting surface 117 are and the lens 11 whole inclined-planes that are provided with and are divided into the right-angle triangle prism of these lens 11 1 sides two ends, and be provided with a location structure 119 between first reflecting surface 116 and second reflecting surface 117, these second lens 14 are mounted on the lens 11 by this location structure 119, in the specific implementation, this location structure 119 is a locating slot, thereby these second lens 14 are to be fastened in this locating slot by an end 141 second lens 14 are fixed on these lens 11, and make this non-spherical lens 118 on the light path between first reflecting surface 116 and second reflecting surface 117.
Compared with prior art, the utility model is by being arranged at lens sensitive chip and light source top, and by a sphere is set at lens, hyperboloid reflecting surface and transmission plane, and at lens covering one navigation panel, and make light source be arranged at the center of this sphere, so the light of light source emission is incident in the lens perpendicular to sphere, so can guarantee optical transmission rate maximum, afterwards through the reflection of hyperboloid reflecting surface, the directional light that is perpendicular to transmission plane penetrates, also can guarantee maximum transmissivity, the afterwards again refraction of process navigation panel, uniform irradiation guarantees that sensitive chip obtains better picture quality and reaches the higher utilization ratio of light that light source is launched at the navigation panel surface thereby be beneficial to. By reflecting surface horizontal direction is changed in the reflection ray transmission direction afterwards, so can be beneficial to the height that reduces this optical indicating device. Simultaneously, the utility model is by arranging two reflectings surface to change direction of light (changing in the present embodiment the along continuous straight runs transmission into) at imaging optical path, so can guarantee the light path that this optical indicating device has prolonged imaging moiety under the highly lower prerequisite in vertical direction, thereby reduce the design difficulty of imaging len, also can obtain better image quality.
Claims (10)
1. thin type optical indicating device, the lens and the sensitive chip that comprise a light source, transmission light source emission light, these lens comprise an illumination path and imaging optical path, it is characterized in that: this illumination path comprises a sphere, this sphere is located at the surface of the relative light source of lens, and light source is arranged at the center of this sphere, the light of light emitted is incident in the lens perpendicular to sphere, and the imaging light path comprises the reflection ray transmission direction is changed into horizontal direction and further transferred to the reflecting surface of sensitive chip.
2. thin type optical indicating device as claimed in claim 1, it is characterized in that: these lens are provided with the hyperboloid reflecting surface on another surface of contiguous sphere, and be provided with transmission plane at the opposite side relative with this hyperboloid reflecting surface, reflect through this hyperboloid reflecting surface from the light of Homology of Sphere, the directional light that is perpendicular to transmission plane penetrates.
3. thin type optical indicating device as claimed in claim 2, it is characterized in that: this thin type optical indicating device is provided with a navigation panel above lens, from the parallel rays of the ejaculation of transmission plane through the refraction of navigation panel after, uniformly dispersing is at the navigation panel surface.
4. as claim 1 or 3 described thin type optical indicating devices, it is characterized in that: this imaging optical path comprises first and second reflecting surface, transferred to second reflecting surface by the light of target reflection through first reflecting surface reflection back along continuous straight runs, second reflecting surface is reflected into second direction with light.
5. thin type optical indicating device as claimed in claim 4 is characterized in that: be provided with a non-spherical lens between this first reflecting surface and second reflecting surface.
6. thin type optical indicating device as claimed in claim 5 is characterized in that: these lens are provided with a location structure between first reflecting surface and second reflecting surface, this non-spherical lens is mounted on the lens by this location structure.
7. thin type optical indicating device as claimed in claim 4 is characterized in that: wherein this light source and sensitive chip all are mounted on the circuit board, and these lens are arranged at sensitive chip and light source top.
8. thin type optical indicating device as claimed in claim 7 is characterized in that: the mode that this light source is pasted with the surface is installed on the circuit board.
9. thin type optical indicating device as claimed in claim 7 is characterized in that: this circuit board is a flexible printed circuit board, and this flexible printed circuit board one end is provided with the interface that is connected with the electronic installation main circuit board that uses this thin type optics indicating module.
10. thin type optical indicating device as claimed in claim 3 is characterized in that: this navigation panel and lens are whole a setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200363252U CN201828885U (en) | 2010-01-08 | 2010-01-08 | Thin-type optical indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200363252U CN201828885U (en) | 2010-01-08 | 2010-01-08 | Thin-type optical indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828885U true CN201828885U (en) | 2011-05-11 |
Family
ID=43967408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200363252U Expired - Fee Related CN201828885U (en) | 2010-01-08 | 2010-01-08 | Thin-type optical indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201828885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462713A (en) * | 2018-10-26 | 2019-03-12 | 敦南科技（无锡）有限公司 | A kind of ultrathin type image sensor module |
| CN113504838A (en) * | 2017-06-02 | 2021-10-15 | 原相科技股份有限公司 | Trajectory tracking device capable of increasing working surface applicability |
-
2010
- 2010-01-08 CN CN2010200363252U patent/CN201828885U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113504838A (en) * | 2017-06-02 | 2021-10-15 | 原相科技股份有限公司 | Trajectory tracking device capable of increasing working surface applicability |
| CN109462713A (en) * | 2018-10-26 | 2019-03-12 | 敦南科技（无锡）有限公司 | A kind of ultrathin type image sensor module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Jie Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Apexone Microelectronics (Shanghai) Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20140108 |