CN2558083Y

CN2558083Y - CMOS circuit module with light source

Info

Publication number: CN2558083Y
Application number: CN 02238283
Authority: CN
Inventors: 陈淑芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-28
Filing date: 2002-06-28
Publication date: 2003-06-25
Anticipated expiration: 2012-06-28

Abstract

Disclosed is a complementary metal oxide semiconductor circuit module with a light source. A CMOS image retrieving unit and at least a light source are encapsulated with the utility model. The light source is adjacent to one side of the CMOS image retrieving unit. The light path of the light source is within the image retrieving range of the CMOS image retrieving unit. The CMOS image retrieving unit is provided with a viewing window. A lens group provided with an image magnifying lens and a prism is arranged on the lower parts of the viewing window and the light source. The image magnifying lens is opposite to the viewing window and the prism is opposite to the light source. Because the CMOS image retrieving unit is encapsulated with the light source, the volume of the CMOS module is reduced, and then the utility model is applicable to the devices with small volumes; meanwhile, the light path of the light source is shortened and the brightness is increased; thereby, the power supply for the light source is saved.

Description

The complementary metal oxide semiconductor module of tool light source

Technical field

The utility model relates to a kind of semiconductor device, relate in particular to a kind of volume that dwindles complementary metal oxide semiconductor (CMOS) module, and then can apply on the device of smaller size smaller, and the light path of light source is shortened, and have the complementary metal oxide semiconductor module of the tool light source of a brighter brightness.

Background technology

At present, utilize the digitized video technology, be widely used in judging, calculate, on the devices such as object displacement and location, as shown in Figure 6, it is a kind of existing optical mouse, this optical mouse is to use this digitized video technology, be provided with a complementary metal oxide semiconductor (CMOS) module 71 in this optical mouse 7, this CMOS module 71 is to be located on the circuit board 72, and this circuit board 72 is provided with the electronic building brick 73 for these optical mouse 7 normal operations, has a CMOS image acquisition unit 74 in this CMOS module 71, CMOS module 71 1 sides are provided with a LED lamp source 75 on circuit board 71 in addition, and the below in this CMOS module 71 and LED lamp source 75 is provided with a set of lenses 8, and this set of lenses 8 has an image amplifying lens 81 and a prism 82.

Make the light source in this LED lamp source 75 by this prism 82, be projeced in the pick-up image scope of this CMOS image acquisition unit 74, and make the image that light source reflected on this this scope of CMOS image acquisition unit 74 fechtables, and then calculate the displacement and the direction of this optical mouse by this CMOS module 71.

As shown in Figure 7, because this CMOS image acquisition unit 74 is to be packaged in separately in the CMOS module 71, members such as its LED lamp source 75, set of lenses 8 are to be assembled in addition on the circuit board 71, the area of circuit board 71 is increased, and occupy optical mouse 7 volume inside, make optical mouse 7 can't reduce its volume, and can't apply on the device of smaller size smaller.

Moreover, because these LED lamp source 75 members such as grade must be assembled in addition, thus, can make assembling flow path cumbersome, and the cost of manufacturing is increased.

In addition, because this LED lamp source 75 is sides of being located at this CMOS module 71, and be a laterally irradiation, it must see through a prism 82, to laterally be converted to an oblique irradiation down according to establishing, therefore the light path of irradiation must could laterally be converted to an oblique irradiation down according to establishing through the turnover of multiple tracks, the path that makes light path advance thus is long, causes the loss of light source and brightness is reduced.

Summary of the invention

In order to overcome the above-mentioned shortcoming that existing C MOS module exists, the utility model provides a kind of complementary metal oxide semiconductor module of tool light source, together be packaged in one by this CMOS image acquisition unit and light source, and can dwindle the volume of CMOS module, and then can apply on the device of smaller size smaller, and the light path of light source is shortened, and have a brighter brightness, thus save the power supply of this light source of supply.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of complementary metal oxide semiconductor module of tool light source, it is characterized in that, it together is packaged with a complementary metal oxide semiconductor image acquisition unit and at least one light source, this light source is a side of contiguous this complementary metal oxide semiconductor image acquisition unit, and the light path of this light source is to shine on the pick-up image scope of this complementary metal oxide semiconductor image acquisition unit.

The complementary metal oxide semiconductor module of aforesaid tool light source, wherein the complementary metal oxide semiconductor image acquisition unit has a viewfinder, the below of this viewfinder and light source is provided with a set of lenses, this set of lenses has an image amplifying lens and a prism, this image amplifying lens is with respect to this viewfinder, and this prism is with respect to this light source.

By this light source, be projeced in the pick-up image scope of this CMOS image acquisition unit, and make the image that light source reflected on this this scope of CMOS image acquisition unit fechtable, and then calculate mobile distance and direction by this CMOS module.

The utility model together is packaged in one by this CMOS image acquisition unit and light source, and can dwindle the volume of CMOS module, and then can apply on the device of smaller size smaller, and the light path of light source is shortened, and have a brighter brightness, thereby save the power supply of this light source of supply.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic diagram that the utility model is positioned at optical mouse

Fig. 2 is a upward view of the present utility model

Fig. 3 is the schematic diagram of the utility model light source projects in the pick-up image scope of this image acquisition unit

Fig. 4 is the schematic diagram of the utility model second embodiment

Fig. 5 is the schematic diagram of the utility model the 3rd embodiment

Fig. 6 is the schematic diagram of existing CMOS module in optical mouse inside

Fig. 7 is the upward view of existing CMOS module

Embodiment

See also Fig. 1 to Fig. 3, the utility model is a kind of complementary metal oxide semiconductor module of tool light source, in order to understand the advantage of the utility model on reality is used easily, and be example to be applied to optical mouse, wherein, this CMOS module 1 is on the circuit board of being located in the optical mouse 23, and this circuit board 3 is provided with several electronic building bricks 31 for these optical mouse 2 normal operations, and together be packaged with a CMOS image acquisition unit 11 and a light source 12 in the CMOS module 1, and CMOS image acquisition unit 11 has a viewfinder 111.In the present embodiment, this light source 12 is a SMT type LED lamp, and a side of light source 12 contiguous CMOS image acquisition units 11, and, the light path of light source 12 is shone on the viewfinder 111 pick-up image scopes of CMOS image acquisition unit 11 with an angle tilt.

Light path by these light source 12 irradiations, be projeced in the viewfinder 111 pick-up image scopes of this CMOS image acquisition unit 11, and make the image that light path reflected on this scope of CMOS image acquisition unit 11 fechtables, and then calculate the displacement and the direction of this optical mouse 2 by this CMOS module 1.

Because this CMOS image acquisition unit 11 is together to be packaged in the CMOS module 1 with light source 12, therefore can reduce whole volume, on the device that is applicable to small-sized volume.

Moreover, again because of this CMOS image acquisition unit 11 is together to be packaged in the CMOS module 1 with light source 12, thus the setting of member can be reduced, thus reduce the number of assembling flow path, reduce the cost of making.

In addition, because this CMOS image acquisition unit 11 is together to be packaged in the CMOS module 1 with light source 12, so light source 12 can make the light path of light source 12 shorten, and have a brighter brightness near CMOS image acquisition unit 11.

In addition, owing to shorten the light path of this light source 12, therefore can use a light source than low-light level, as SMT type LED lamp, can on the viewfinder 111 pick-up image scopes of this CMOS image acquisition unit 11, obtain enough brightness, and can save the power supply of this light source 12 of supply.

Certainly, still there are many examples in the utility model, see also shown in Figure 4, be second embodiment of the present utility model, wherein, if during the packaged type of these CMOS module 1 one tool transparent cover, because CMOS image acquisition unit 11 and light source 12 are to coexist in the open space, for the light that prevents light source 12 directly interferes with CMOS image acquisition unit 11, can establish an obstruct in CMOS

image acquisition unit

11 and 12 of light sources, this obstruct in the present embodiment is to be a partition wall 4, by the surplus light of these partition wall 4 blocking-up light sources 12, to avoid interference CMOS image acquisition unit 11.

See also shown in Figure 5, it is the 3rd embodiment of the present utility model, wherein, the viewfinder 111 and the light source 12 of the CMOS image acquisition unit 11 in this CMOS module 1 are downward projection, and the below of this viewfinder 111 and light source 12 is provided with a set of lenses 5, and this set of lenses 5 has an image amplifying lens 51 and a prism 52, and this image amplifying lens 51 is with respect to this viewfinder 111, and this prism 52 is with respect to this light source 12.Make viewfinder 111 by image amplifying lens 51, can obtain a preferable pick-up image, and make the light path of light source 12, concentrated in the pick-up image scope that is projeced into CMOS image acquisition unit 11 by prism 52.

Claims

1. the complementary metal oxide semiconductor module of a tool light source, it is characterized in that, it together is packaged with a complementary metal oxide semiconductor image acquisition unit and at least one light source, this light source is a side of contiguous this complementary metal oxide semiconductor image acquisition unit, and the light path of this light source is to shine on the pick-up image scope of this complementary metal oxide semiconductor image acquisition unit.

2. the complementary metal oxide semiconductor module of tool light source according to claim 1, it is characterized in that described complementary metal oxide semiconductor image acquisition unit has a viewfinder, the below of this viewfinder and light source is provided with a set of lenses, this set of lenses has an image amplifying lens and a prism, this image amplifying lens is with respect to this viewfinder, and this prism is with respect to this light source.