Patent Application
20100311305
1. Technical Field
The disclosure relates to toys and, more particularly, to a simulated eye for a toy.
2. Description of Related Art
A typical toy replica of an eye has an eyelid that can open and close. Accordingly, other effects are needed to make the eyes more lifelike.
The components of the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the embodiments of the simulated eye. Moreover, in the drawings, like reference numerals designate corresponding parts throughout several views.
Referring to
In the embodiment, the controller 20 is fixed to a backside of the circuit board 70, and is not shown in
The center of the simulated iris 30 defines a through hole 90. The simulated pupil 40 is visible through the through hole 90. The simulated pupil 40 is attached to the circuit board 70. The simulated eye 10 also includes a simulated eyeball (not shown). The circuit board 70 is housed in the simulated eyeball, such that the simulated iris 30 and the simulated pupil 40 are visible at the simulated eyeball.
The portion of the simulated pupil 40 exposed at the through hole 90 is round and is colored. The color of the simulated pupil 40 is darker than an initial color of the simulated iris 30. In the embodiment, the color of the simulated pupil 40 is a dark color, and the initial color of the simulated iris 30 is brown. When the color of the simulated iris 30 darkens, and all the black area in the simulated iris 30 and the simulated pupil 40 are considered as an apparent pupil hereinafter. The simulated pupil 40 can function as a camera. In the embodiment, the simulated pupil 40 is a micro-camera. The lens of the micro-camera is exposed at the through hole 90 to capture images under control of the controller 20.
Referring also to
Each polarizer films 65, 85 has a transmission axis (not shown). When light travels to the polarizer films 65 or 85, light is linearly-polarized by the polarizer films 65 or 85 towards a direction of the transmission axis. In the embodiment, the transmission axis of the first polarizer film 65 is perpendicular to that of the second polarizer film 85. Accordingly, linear polarized light from the polarizer file 85 cannot pass through the other polarizer film 65 and cannot be observed from/at the polarizer film 65.
A surface of the transparent first glass substrate 60 define a plurality of annular first slots 602. The annular first slots 602 and the round hole 90c are coaxial. An electro-conductive film 60a is applied on each surface of the plurality of the annular slots 602. The transparent first glass substrate 60 further includes a first electrode S1. All the electro-conductive films 60a are electrically connected to the first electrode S1. The first electrode S1 is electrically connected to the circuit board 70.
A surface of the transparent second glass substrate 80 define a plurality of annular second slots 802 corresponding to the annular first slots 602. The annular second slots 802 and the round hole 90b are coaxial. An electro-conductive film 60a is also applied on each surface of the plurality of the annular second slots 802. Each annular second slot 802 defines an opening 803. The openings 803 are substantially aligned in a straight line. The transparent second glass substrate 80 further includes a plurality of second electrodes S2. Each end of the electro-conductive films 60a applied on each annular second slot 802 is electrically connected to a second electrode S2. The second electrode S2 is electrically connected to the circuit board 70.
The total amount of the annular first slots 602 is equal to that of the annular second slots 802. It should be noted that in assembly, the transparent first glass substrate 60 is attached to the transparent second glass substrate 80, and a receiving space (not shown) is defined/formed by each first slot 602 engaging with a corresponding second slot 802. The receiving space is configured to receive liquid crystal molecules (not shown). The first polarizer film 65 is attached to the first glass substrate 60 opposite to the first slots 602. The second polarizer 85 is attached to the second glass substrate 80 opposite to the second slots 802, and the illuminating device 95 is attached to the second polarizer film 85. After assembly, the round holes 90a, 90b, 90c, 90d, and 90e cooperatively form the through hole 90.
The illuminating device 95 emits light at the second polarizer film 85. A linearly-polarized light is formed after light passes through the second polarizer film 85 and travels in a direction of the transmission axis. When the first electrode S1 and the second electrodes S2 are not powered, the liquid crystal molecules are randomly distributed in each receiving space. The liquid crystal molecules turns the linearly-polarized light 90 degrees relative to the transmission direction of the linearly-polarized light. Because the transmission axis of the first polarizer film 65 is perpendicular to the second polarizer film 85, the linearly-polarized light passes through the first polarizer film 65 and is observable thereat. Thus the simulated iris 30 is lighted. In this state, only the simulated pupil 40 appears black, the size of black area is at the smallest, and the apparent pupil of the simulated eye 10 is in a normal state.
When the electrode S1 and the second electrodes S2 are powered, an electric field is formed between the first and second glass substrates 60, 80 and is perpendicular thereto. The liquid crystal molecules randomly distributed are aligned orderly by the electric field. Accordingly, the linearly-polarized light formed by the second polarizer film 85 travels through the first and second glass substrates 60, 80 in an initial direction. As the transmission axis of the first polarizer film 65 is perpendicular to that of the second polarizer film 85, thus, the linearly-polarized light can not pass through the first polarizer film 65, and the simulated iris 30 appears black. As a result, the size of black area expands, and the apparent pupil of the simulated eye 10 is said to change from the normal state to a dilated state. In the dilated state, the size of black area is a sum of that of the simulated pupil 40 and the first slots 602 and is largest.
When the first electrode S1 and the second electrodes S2 are not powered, the liquid crystal molecules are randomly distributed again in each receiving space, and the simulated iris 30 is lighted. Accordingly, the apparent pupil of the simulated eye 10 is changed from the dialed state to the normal state again.
Furthermore, the controller 20 can control the circuit board 70 to power the first electrode S1 and selectively power parts of the second electrodes S2 in a predetermined order from the inner most one toward the outermost one. When the first electrode S1 and parts of the second electrodes S2 are supplied with power, only a part of the first slots 602 appears black. Accordingly, when the second electrodes S2 are selectively powered in a predetermined order, the size of the black area enlarges gradually. As a result, the apparent pupil of the simulated eye 10 appears to dilate gradually. In reverse, the apparent pupil of the simulated eye 10 is contracted gradually when the second electrodes S2 are selectively powered off in reverse order.
Therefore, by selectively powering (on and off) the first electrode S1 and the second electrodes S2 to change the size of the colored area appearing in the simulated iris 30, the apparent pupil changes between a normal state and a dilated state.
In other embodiments, the transmission axis of the first polarizer film 65 can be parallel to the second polarizer film 85. The linearly-polarized light formed by one of the polarizer films 65, 85 can pass through the other polarizer film and is observed. When the first electrode S1 and parts of the second electrodes S2 are not powered, the liquid crystal molecules are randomly distributed in each receiving space, the liquid crystal molecules turn the linearly-polarized light formed by the second polarizer film 85 90 degrees, thus, the linearly-polarizer light cannot pass through the first polarizer film and is invisible thereat, and the simulated iris 30 appears black. As a result, the apparent pupil is dilated, and the simulated eye 10 is in a dilated state.
When the first electrode S1 and the second electrodes S2 are powered on, the liquid crystal molecules are aligned orderly, the linearly-polarized light formed by the second polarizer film 85 can pass through the first polarizer film 65 and is observed, and the simulated iris 30 is lighted. As a result, the simulated eye 10 is in a normal state. Furthermore, when the controller 20 control the circuit board 70 to supply the first electrode S1 with power and selectively to supply parts of the second electrodes S2 with power in sequence from the outermost one to the inner most one, the apparent pupil seems to be contracted gradually, and the simulated eye 10 is changed from the dilated state to the normal state gradually.
Although the present disclosure has been specifically described on the basis of the embodiments thereof, the disclosure is not to be construed as being limited thereto. Various changes or modifications may be made to the embodiments without departing from the scope and spirit of the disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 200910302875.6 | Jun 2009 | CN | national |
