TWI421734B - Optical and image sensing device and optical identify stylus - Google Patents

Description

Optical and image sensing device and optical identification pen

The present invention relates to an optical and image sensing device, and more particularly to an optical and image sensing device for use in an optical identification pen.

With the advancement of technology, existing reading books often combine graphics and sounds to make readers interested in reading books. For example, a CD or an MP3 player that stores a sound file. However, in this way, the user needs to search for the relevant sound file separately when reading the book, which in turn causes inconvenience in reading.

Therefore, there is an optical point reading pen which utilizes optical identification technology to read optical recognition on an optical point reading point when it points to a text or image on a book. The code is then generated by a sounding device to improve the effect of reading learning.

However, the existing optical point reading pens are usually limited by the internal optical and image sensing devices, so that the structural appearance of the optical point reading pen cannot be further reduced or the structural strength cannot be increased, and thus the optical and image sensing device is enabled. The positioning in the optical point reading pen causes an error, which causes a decrease in the function and reliability of the optical and image sensing device.

The invention provides an optical and image sensing device with better adaptability.

The invention provides an optical identification pen which has a small appearance and a preferred structure.

An embodiment of the invention provides an optical and image sensing device adapted to be assembled within a housing. The outer casing has an accommodation space. The optical and image sensing device includes a body and at least one light emitting element. The body is disposed in the accommodating space, and the body has a first side and a second side. The light emitting element is disposed adjacent to the body, and the light emitting element has at least one pin, wherein one end of the pin is disposed on the first side of the body, and the other end of the pin extends from the first side of the body toward the second side of the body.

An embodiment of the invention provides an optical and image sensing device adapted to be assembled within a housing. The outer casing has an accommodation space. The optical and image sensing device includes a first cylinder, a second cylinder, a sensing unit, and an at least one lens. The first cylinder is disposed in the accommodating space. The first body has a first side and a second side opposite to each other. The second cylinder is detachably assembled to the second side of the first cylinder. The sensing unit is disposed on the first side of the first cylinder. The lens is disposed on the second cylinder.

An embodiment of the invention provides an optical identification pen comprising a pen, at least one limiting member and an optical and image sensing device. . The pen holder has an opening and an accommodating space. The limit member is disposed in the pen holder. The optical and image sensing device is assembled in the housing space of the pen holder. The limiting member limits the position of the optical and image sensing device relative to the sheath such that a fixed distance is provided between the optical and image sensing device and the opening, and the optical and image sensing device has the same central axis as the sheath.

Based on the above, in the above embodiments of the present invention, the optical and image sensing device bears the encapsulant against the second cylinder of the body by the pin bending of the light-emitting element, and thus the optical and image sensing device The contour is smoothly assembled into the sheath by conforming to the inner contour of the sheath housing. In addition to reducing the size of the optical and image sensing device, it also increases its adaptability to conform to many different types of pen holders. In other words, such an optical and image sensing device without a casing design allows the designer to effectively increase the strength of the pen structure due to its limitation, and to provide better flexibility in design to make the above features and advantages of the present invention. It can be more clearly understood, and the following specific embodiments are described in detail below with reference to the accompanying drawings.

1 is a perspective view of an optical and image sensing device in accordance with an embodiment of the present invention. 2 is a front elevational view of the optical and image sensing device of FIG. 1. Please also refer to Figure 1 and Figure 2. The optical and image sensing device 100 includes a body 110, a sensing module 120, a lens group 130, and a pair of light emitting elements 140 (only one of which is labeled herein).

The body 110 includes a first cylinder 112 and a second cylinder 114 that are connected to each other and coaxial. The sensing module 120 is assembled to a first side E1 of the first cylinder 112, and the second cylinder 114 is located at the first A second side E2 of the cylinder 112 is opposite to the sensing module 120. Lens group 130 is assembled into second cylinder 114 (shown here in phantom). The light-emitting element 140 is, for example, a light-emitting diode electrically connected to the sensing unit 120, and the light-emitting element 140 has a pair of pins 142 (only one of which is labeled here) and an encapsulant 144 connected to the pin 142. One end of the pin 142 is connected to the sensing module 120, and the other end of the pin 142 extends from the first side E1 along the cylindrical surface of the first cylinder 112 toward the second side E2 and is bent, and the encapsulant is encapsulated. The 144 bears against the second cylinder 114.

In the present embodiment, the optical and image sensing device 100 has a pattern recognition function. For example, the illuminating element 140 provides light to a pattern (not shown), and the reflected light is transmitted to the sensing module 120 through the lens group 130 in the second cylinder 114 to form an image, so that the sensing module 120 processes the image of the pattern to process the image of the pattern and determine the resulting response by other related devices (eg, speakers).

The present embodiment does not limit the form and the number of the light-emitting elements 140 or the shape of the encapsulant 144. Any light source that can be provided by the sensing module 120 for sensing images can be applied to the embodiment. .

3 is an exploded view of the optical and image sensing device of FIG. 1 with the light emitting elements removed. Referring to FIG. 1 and FIG. 3 , in the embodiment, the sensing module 120 includes a circuit board 122 , a sensing unit 124 , and a connector 126 . The sensing unit 124 is, for example, a charge coupled device (CCD) disposed on the circuit board 132 and facing the lens group 130. The connector 126 is disposed on the other side of the circuit board 122 opposite to the sensing unit 124 for transmitting the image signal generated by the sensing unit 124.

Furthermore, the first cylinder 112 is a hollow cylinder having a first screw portion 112a on the inner surface of the hollow cylinder. The second cylinder 114 has a second screw portion 114a opposite to the first screw portion 112a. Accordingly, the second cylinder 114 can be assembled to the first cylinder 112 by the first screwing portion 112a and the second screw portion 114a being joined to each other. The first cylinder 112 and the second body 114 are assembled by this to have a common first central axis A1. More importantly, the focal length of the optical system formed by the lens group 130 and the sensing unit 124 in the second cylinder 114 can be adjusted by the screwing portions 112a, 114a. In this way, the designer can have a more flexible design margin, thereby reducing the design difficulty of the optical and image sensing device 100. However, the present invention does not limit the structural form of the column-shaped body 110. In another embodiment of the present invention, the first column and the second column of the body may be integrally formed, and then The lens group and the sensing module are separately assembled to the body, thereby simplifying the process of assembling the optical and image sensing device.

Referring to FIG. 1 and FIG. 3 again, in the embodiment, the second cylinder 114 further has a grip portion 114b located on the cylindrical surface of the second cylinder 114. The grip portion 114b has a short column shape and has a toothed edge. Furthermore, the outer diameter of the grip portion 114b is larger than the outer diameter of the second screw portion 134, so that the user can hold the cylinder having the toothed edge of the grip portion 114b and screw the second cylinder 114 into the first portion. A cylinder 112. Here, the embodiment does not limit the cylindrical shape of the grip portion 114b. In another embodiment not shown, the cylindrical surface of the grip portion may also be replaced by a rough surface.

4 is a partial cross-sectional view of an optical identification pen in accordance with an embodiment of the present invention. The optical and image sensing device 100 is omitted here to clearly identify its internal structure. Referring to FIG. 1 , FIG. 2 and FIG. 4 , in the embodiment, the optical identification pen 10 includes a pen 200 and the optical and image sensing device 100 , wherein the optical and image sensing device 100 is in the above embodiment. The structure described will not be described here.

In this embodiment, the pen holder 200 includes a housing 210, a first limiting member 220 and a second limiting member 230, wherein the housing has an opening 211, and the first limiting member 220 and the second limiting member The piece 230 is disposed in the housing 210. The user can perform image discrimination on the pattern by the optical and image sensing device 100 by aligning the opening 211 of the pen holder 200 with the pattern to be read.

Referring to FIG. 2 and FIG. 4 again, the housing 210 has a tapered inner surface 212 having a taper angle T1 at the tip of the pen, and the tapered inner surface 212 is substantially a matte surface to have a matting function. In the present embodiment, the encapsulant 144 of the illuminating element 140 bears against the second cylinder 114 and is pinched at an acute angle T2, and the acute angle T2 is substantially less than or equal to half the taper angle T1 of the tapered inner surface 212. In other words, the light-emitting element 140 of the optical and image sensing device 100 of the present invention conforms to the contour of the tapered inner surface 212 at its encapsulant 144 and the outline of the second cylinder 114, thus the optical and image sensing device. The 100 can be smoothly placed in the pen holder 200, and the optical identification pen 10 can be effectively reduced in volume.

5A to 5C are cross-sectional views of the pen holder of Fig. 4 taken along line A-A, line B-B, and line C-C, respectively. Referring to FIG. 1 , FIG. 4 , and FIG. 5A to FIG. 5C , it is noted that the first limiting member 220 includes a first portion 222 and a second portion 224 , and the first cylinder 112 has corresponding two limits. Bits 112b, 112c. When the optical and image sensing device 100 is assembled to the sheath 210, the first cylinder 112 is coupled to the limiting portion 112b, 112c by the first portion 222, the second portion 224, and the optical and image sensing device 100. A fixed distance is maintained between the openings 211 of the housing 210 to allow the optical and image sensing device 100 to be positioned along a second central axis A2 of the sheath 200.

At the same time, the second cylinder 114 of the lens module 130 is locked to the second limiting member 230 , and the first cylinder 112 is also inserted into the first portion 222 of the first limiting member 220 . This allows the first central axis A1 of the optical and image sensing device 100 to coincide with the second central axis A2 of the sheath to avoid tilting or displacement of the two central axes A1, A2 from each other. In this way, the optical and image sensing device 100 can accomplish the purpose of positioning in the pen holder 200 along the vertical second central axis A2 while enabling the lens group 130 in the second cylinder 114 to face the housing 210. The opening 211 is such that the optical and image sensing device 100 can correctly read the pattern at the opening 211.

In summary, in the above embodiment of the present invention, the optical and image sensing device is formed by the light-emitting element being bent and supported by the second cylinder of the body to form an outline profile, thereby conforming to the inclusion in the pen holder. The contour of the inner face of the cone. In addition to reducing the size of the optical and image sensing device, it also increases its adaptability to conform to many different types of pen holders. In other words, the optical and image sensing device without the outer casing design allows the designer to effectively increase the strength of the pen structure due to its limitation, so that the design has better elasticity.

Moreover, the limiting member in the pen holder can effectively limit and fix the optical and image sensing device therein, and the limit position is only in the structural part of the pen holder and the optical and image sensing device, thereby effectively Avoid touching the connectors of the connector.

In addition, the second cylinder of the optical and image sensing device is detachable relative to the first cylinder, so that the focal length of the lens group relative to the sensing unit can be adjusted by using the structure, so that the optical and image sensing device can be added. Or the margin of the pen in the structural design, thereby reducing the difficulty of its design.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

10. . . Optical identification pen

100. . . Optical and image sensing device

110. . . Ontology

112. . . First cylinder

112a. . . First screw

112b, 112c. . . Limiting department

114. . . Second cylinder

114a‧‧‧Second screw joint

114b‧‧‧ grip

120‧‧‧Sensor module

122‧‧‧ boards

124‧‧‧Sensor unit

126‧‧‧Connector

130‧‧‧ lens group

140‧‧‧Lighting elements

142‧‧‧ feet

144‧‧‧Package colloid

200‧‧‧ pen

210‧‧‧Shell

211‧‧‧ openings

212‧‧‧Conical inner surface

220‧‧‧First limiter

222‧‧‧Part I

224‧‧‧Part II

230‧‧‧second limiter

A1‧‧‧first central axis

A2‧‧‧second central axis

E1‧‧‧ first side

E2‧‧‧ second side

T1‧‧‧ cone angle

T2‧‧‧ acute angle

1 is a perspective view of an optical and image sensing device in accordance with an embodiment of the present invention.

2 is a front elevational view of the optical and image sensing device of FIG. 1.

3 is an exploded view of the optical and image sensing device of FIG. 1 with the light emitting elements removed.

4 is a partial cross-sectional view of an optical identification pen in accordance with an embodiment of the present invention.

5A to 5C are cross-sectional views of the pen holder of Fig. 4 taken along line A-A, line B-B, and line C-C, respectively.

100. . . Optical and image sensing device

110. . . Ontology

112. . . First cylinder

112b, 112c. . . Limiting department

114. . . Second cylinder

114b. . . Grip

120. . . Sensing module

130. . . Lens group

140. . . Light-emitting element

142. . . Pin

144. . . Encapsulant

E1. . . First side

E2. . . Second side

Claims (21)

An optical and image sensing device is adapted to be assembled in a housing. The housing has an accommodating space. The optical and image sensing device comprises: a body disposed in the accommodating space, the body having a first a first cylinder and a second cylinder connected to the second side and the second side, wherein the first cylinder has the first side, and the second cylinder has the second side, and the first The cylinder has the same central axis as the second cylinder; and at least one light-emitting element is disposed beside the body, the light-emitting element has at least one pin, and one end of the pin is disposed on the first body of the body a side, and the other end of the pin extends from the first side toward the second side. The optical and image sensing device of claim 1, wherein the housing further has an opening and at least one limiting member located in the accommodating space, and the body card is placed on the limiting member to enable A fixed distance is provided between the body and the opening, and the body has the same central axis as the outer casing. The optical and image sensing device of claim 2, wherein the at least one limiting member comprises a pair of first limiting members and a second limiting member disposed on the inner surface of the outer casing, the body a card is disposed between the pair of first limiting members such that a fixed distance is provided between the body and the opening, and the body bears against the pair of first limiting members and the second limiting member, so that The body has the same central axis as the outer casing. The optical and image sensing device of claim 1, wherein the accommodating space has a tapered inner surface, and the illuminating element further has an encapsulant coupled to the pin, the encapsulant and the Center shaft clamp An acute angle, and the acute angle is less than or equal to half the cone angle of the inner surface of the cone. The optical and image sensing device of claim 4, wherein the pin of the light-emitting element extends from the first cylinder toward the second cylinder and is bent to support the encapsulant The second cylinder. The optical and image sensing device of claim 1, further comprising a lens group and a sensing unit disposed in the body, and the reflected light from the light emitting element is transmitted to the sense through the lens group The unit is measured to produce an image. The optical and image sensing device of claim 6, further comprising: a circuit board connected to the first side of the body, the pin of the light emitting element being connected to the circuit board, and the sensing The unit is disposed on the circuit board; and a connector is disposed on the other side of the circuit board opposite to the sensing unit. The optical and image sensing device of claim 6, wherein the body comprises a first cylinder and a second cylinder coaxial with each other, and the second cylinder is detachably assembled to the first a cylinder, and the lens group is disposed in the second cylinder. The optical and image sensing device of claim 8, wherein the first cylinder has a first screw portion, and the second cylinder has a second screw portion corresponding to the first a screwing portion, wherein the sensing unit is disposed on the first cylinder, so that the first cylinder and the second cylinder adjust the lens group by the first screw portion and the second screw portion The distance from the sensing unit. An optical and image sensing device is adapted to be assembled in a housing. The housing has an accommodating space. The optical and image sensing device includes: a first cylinder disposed in the accommodating space, the first The cylinder has a first side and a second side opposite to each other; a second cylinder detachably assembled to the second side of the first cylinder, wherein the first cylinder and the second cylinder Having the same central axis; a sensing unit disposed on the first side of the first cylinder; and at least one lens disposed on the second cylinder. The optical and image sensing device of claim 10, wherein the first cylinder has a first screw portion, and the second cylinder has a second screw corresponding to the first screw portion. The first post and the second post are configured by the first screw portion and the second screw portion to adjust a distance of the lens relative to the sensing unit. The optical and image sensing device of claim 10, wherein the second cylinder has a grip portion on a cylindrical surface of the second cylinder and has a toothed edge. The optical and image sensing device of claim 10, further comprising: at least one light emitting element disposed adjacent to the first pillar and extending toward the second pillar; a circuit board connecting the first The first side of the cylinder, the sensing unit is disposed on the circuit board, and the circuit board, the first cylinder and the second cylinder have the same central axis; and a connector disposed on the circuit board The circuit board is facing away from the other side of the sensing unit. An optical identification pen comprising: a pen having an opening and an accommodating space; at least one limiting member disposed in the pen; and an optical and image sensing device assembled in the accommodating space of the pen The optical and image sensing device has a body in the shape of a cylinder, and the limiting member limits the position of the body relative to the pen to ensure a fixed distance between the body and the opening, and the body and the body The pen holder has the same central axis. The optical identification pen of claim 14, wherein the body has a first cylinder and a second cylinder connected to each other, and the optical and image sensing device comprises: at least one lighting unit, configured in the Next to the body, and the light emitting unit extends from the first cylinder toward the second cylinder. The optical identification pen of claim 15, wherein the at least one limiting member comprises: a first limiting member disposed on an inner surface of the sheath, the first cylinder being clamped to the first limit Bit pieces. The optical identification pen of claim 16, wherein the first limiting member comprises a first portion and a second portion, and the first cylindrical member is interposed between the first portion and the second portion, The body is fixed in the accommodating space along the direction of the central axis. The optical identification pen of claim 16, wherein the at least one limiting member further comprises: a second limiting member, wherein the second cylindrical member is placed on the second limiting member, and The first cylinder is stuck to the first limiting member. The optical identification pen of claim 16, wherein the accommodating space has a tapered inner surface, and the illuminating element comprises: at least one pin located beside the body; and an encapsulant connected to the connection a foot, and the encapsulant is clipped to the central axis at an acute angle that is less than or equal to half the taper angle of the inner face of the taper. The optical identification pen of claim 19, wherein the tapered inner surface is a matte surface. The optical identification pen of claim 16, wherein the optical and image sensing device further comprises: a circuit board connected to the body, the pin of the light emitting element is connected to the circuit board; at least one lens, The device is disposed in the body, and is disposed in the body and electrically connected to the circuit board; and a connector disposed on a side of the circuit board facing away from the sensing unit.