TWI323349B - Lens with tunable focal length - Google Patents

Lens with tunable focal length Download PDF

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Publication number
TWI323349B
TWI323349B TW094132592A TW94132592A TWI323349B TW I323349 B TWI323349 B TW I323349B TW 094132592 A TW094132592 A TW 094132592A TW 94132592 A TW94132592 A TW 94132592A TW I323349 B TWI323349 B TW I323349B
Authority
TW
Taiwan
Prior art keywords
lens
liquid droplet
liquid
electrodes
bottom plate
Prior art date
Application number
TW094132592A
Other languages
Chinese (zh)
Other versions
TW200712538A (en
Inventor
Jer Liang Yeh
Chih Cheng Cheng
Chia Ming Chang
Original Assignee
Nat Univ Tsing Hua
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nat Univ Tsing Hua filed Critical Nat Univ Tsing Hua
Priority to TW094132592A priority Critical patent/TWI323349B/en
Priority claimed from JP2006253981A external-priority patent/JP5089116B2/en
Publication of TW200712538A publication Critical patent/TW200712538A/en
Application granted granted Critical
Publication of TWI323349B publication Critical patent/TWI323349B/en

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Description

1323349 IX. Description of the Invention: [Technical Field] The present invention relates to a lens in an optical system, and more particularly to a lens capable of adjusting a focal length. [Prior Art]

In general, the lenses of a zoomable optical system are roughly classified into mechanical zoom and electronic zoom. The mechanical zoom lens achieves the purpose of zooming by utilizing changes in the front and rear of the lens itself. Due to the increasingly thin and light digital cameras or camera-equipped mobile phones, the mechanical zoom lens is too thick and too large, and many thin and light cameras use electronic zoom lenses. In the conventional technique, the electronic zoom technique uses a dropiet as a lens, and uses electrowetting to control the shape and curvature of the bead, thereby changing the focal length of the bead. The liquid bead must be electrically conductive water or ^. The content of the patent No. 6,545,815 is a related example, wherein the device is to place a transparent conductive bead on the lubricating layer and the insulating layer, There is a plurality of healthy relays and liquid bead electrodes below the edge layer of the rim, and a voltage is supplied to the beads. By adjusting the contact angle, thereby changing the miscellaneous and coke characteristics of the bead and the external and external, the problem of the lens [the invention provides a lens with adjustable focal length and the application of the polarized lens Mouth = - lens. The lens contains - the liquid droplet can be placed and contains a set of 笫. The bottom plate is arranged such that the first electrode of the group can be selected as one of the first ligand droplets of the first electrode and the first electrode of the first electrode, whereby the liquid is in the liquid The droplet and each of the first electric potentials are permeable to change at a potential parallel to the first surface, and the angle between the liquid droplet and the focal length of the lens is adjustable, that is, the system Including f31# The specific embodiment is an optical system. The optical system transmitter and the connection = (two called 'and-lens. The polarized liquid droplet and the sum contains L. The lens contains - can be a bottom plate of the first surface of the culvert 3. The bottom plate is used for firstly arranging one of the electrodes, whereby the liquid micro-body droplets and each of the [rj two U-cores are transmitted through the liquid and the distance between the liquids For the poor sewing, it can be canned, that is, the lens is "," for the sake of smashing. Hunting this, the optical button can provide the function of Wei. The point and the fine shot are called the following (4) and the attached pole The liquid micro: one...-set=25 sets of the first electrode. The set of the first-electrode-the first-matching droplet and the dust of each of the first-electrode The liquid micrograph is further understood. 1323349 [Embodiment] The main purpose of the lens is to provide a lens with adjustable focal length and the application, the material will have a certain dielectric property, that is, under the addition, the direction of adding 2 To arrange further. Further, if the external charge =: the grain is unevenly "adding electric field 7: the τ dtim彳ί of the (4) droplets will contain many electric dipoles, the liquid droplets are in contact with each other, so Avoid many of the prior art = need and lens: #f (A) is the mirror according to the first preferred embodiment of the present invention: two: 5 = to (10), and - the bottom plate m · knife ~ clothing is not The influence of the electricity and the electricity is affected by the electric field. The body of the body is used to place the liquid droplets and is used to make the eccentricity of the (four) observable hybrids (four). , the foot of the lens is: increase the thickness of the effect of the 'the bottom plate 24 can be as shown in Figure 2 (8) does not include a turbid layer 26. Lubricating layer 26 is placed in the liquid ^ drop 1323349 iVii between electricity and can be a liquid-repellent two-sided 26 containing Teflon (4) Secret ^ Come. two. Fig. 3 ((:) another change of the lens of the diagram (Fig. 2 (4)): further includes an upper plate (upperpIate) 27. The top plate 27 includes a 28-new second electrode 28 disposed in such a manner that the second electrode is tilted. 'Therefore, the second potential is applied to the second electrode of each surface. The second electrode 28 and the set of first electrodes 25 are simultaneously used to achieve the effect of changing the shape of the liquid stupid droplet. 3. Figure 3 is a perspective view of a second preferred embodiment of the present invention. The lens 3G includes liquid droplets (32A, 32B), a bottom plate 34, and deniers 32A and 32B, respectively, which are unaffected by an electric field. The shape of the front and the second electric field is different. The difference between the second preferred embodiment and the first preferred embodiment is that the bottom plate 34 in the lens 3G is only for placing the liquid to generate an electric field, and the function of changing the ship is from the top plate 37. a plurality of electrodes 38 of the towel. Beibei. Figure 4 shows the optical system of the lens according to the present invention = Fig. Optical system 4 〇 includes - transmitter 42, receives $ Μ, and one through = 46 The transmitter 42 and the receiver 44 are respectively configured to provide and receive an optical letter lens 4β, and then center the light The learning signal is directed to the receiver by a transmitter 42. The lens 46 includes a liquid droplet 46 可 that can be polarized and a bottom plate 46β. The 氐々 46 Β is used to place the liquid droplet 46 and includes a set of first electrodes The second electrode is disposed such that the (four)-electrode can be selectively biased, and a first electric current is formed between the liquid droplet 46 and each of the first electrodes, respectively. The liquid droplets 46 Α and the first liquid droplets 46 各个 between the first electrodes and the adjustment between the plane parallel to a plane of the first surface, that is, the focal length of the lens 46 is adjustable. Therefore, the Jiuyu system 40 can provide a zoom function. The invention of the age-appropriate lens and the optical system of the Wei Wei provide a zoom mode. Since the electrode according to the present invention does not need to be as prior art The liquid droplets are in direct contact, so that the power consumption can be reduced, and there are many problems in which the liquid droplets may be heated, decomposed, or evaporated. The detailed description of the specific embodiments of the invention is intended to more clearly describe the book. Invented kr '' and It is not the case that the specific embodiment of Chen Jia is disclosed, but the purpose is to cover all kinds of changes in the scope of the eight patents in the patent scope of the invention. [Simplified illustration] = scale 1 Schematic diagram of a lens. Fig. θ is a schematic view of a lens according to a preferred embodiment of the present invention.) A schematic diagram of a step-by-step inclusion-lubricating layer. ° (c) is a preferred embodiment of the present invention - a schematic view of a top plate - a schematic view of a lens according to a second preferred embodiment of the present invention. Figure 4 is a schematic illustration of an optical system employing a lens in accordance with the present invention. [Description of main component symbols] W: Lens 11: Liquid bead U: Insulation layer 14: Base plate: Control electrode 16 · · Bead electrode 20: Lens 22Α, 22Β: Liquid droplet 24. Floor plate 25: First electrode 26: Lubrication Layer 27: Top plate 28: Second electrode 30: Lens 32Α, 32Β: Liquid droplet 34: Base plate 1323349 37: Top plate 40: Optical system 44: Receiver 46A: Liquid droplet 38: Electrode 42: Transmitter 46: Lens 46B : bottom plate

12

Claims (1)

1323349 ^ ; [ η\3 ;:;·;;-:τν ', the scope of patent application: a lens, comprising: a liquid droplet that can be polarized; And a bottom plate, the bottom plate comprising a first surface for placing the liquid droplet and comprising a set of first electrodes, the first configuration of the first electrode of the set The first electrode of the group can be selectively biased, and a first voltage potential is formed between the liquid droplet and each of the first electrodes, wherein the first potential is changed by At a potential, a contact angle between the liquid droplet and the bottom plate is adjustable to adjust a focal length of the lens by controlling the electric field distribution. The lens of claim 1, wherein the substrate further comprises: a lubricating layer disposed between the liquid droplet and the set of first electrodes. The lens of the item, wherein the lubricating layer is a liquid repellent layer. The lens of item 2, wherein the set of first-electrode is placed in (= the lion of the lion, _ The sliding layer comprises a lens according to claim 1, wherein the lens further comprises: an upper plate, the top plate comprising a set of second electrodes, and the second-stage arrangement The second electrode of the group can be electrically charged between the liquid droplet and each of the second electrodes respectively, and the patent is referred to in the first item of the patent, and the towel of the Wei line contains the liquid 8, as in the first item of the patent application. The lens, wherein the liquid molecule material. Drop system 匕 3 - high 9, a lens (lens), comprising: 1, 2, 3, 5, 6, 7, 13 1323349 one can be polarized (liquidization) of liquid droplets; bottom plate, The gray board includes a first surface and is for placing the liquid droplet; and a top plate (uPPer plate) 'the top plate includes a set of first electrodes, and the first one of the set of first electrodes is configured The first electrode of the group can be selectively biased to form a first voltage potential between the liquid droplet and each of the first electrodes, wherein the transmission is changed by a first voltage potential. a first potential, an angle of contact between the liquid droplet and the bottom plate is adjustable, thereby adjusting a focal length of the lens by controlling an electric field distribution. ..., 肇10, the lens of claim 9 The lens according to claim 10, wherein the lubricating layer comprises Teflon ° 12, the lens of claim 9 The liquid droplet system comprises a liquid 曰 Ω 曰a 0 13 , the lens of claim 9 , wherein the liquid droplet comprises a macromolecule material. A method of an iens comprising a liquid droplet that can be polarized and a bottom plate for placing a liquid droplet, the method comprising the steps of: Selectively applying a bias voltage (b ias) to a set of first electrodes included in the bottom plate, thereby forming a first potential between the liquid droplets and each of the first electrodes (voltage potential) And changing the first potential, a contact angle between the liquid droplet and the bottom plate is adjustable, thereby adjusting the lens = distance by controlling the electric field distribution. The method of claim 14, wherein the bottom plate comprises a first face, and the step of selectively applying a bias comprises selectively applying a bias voltage to the set of first electrodes to Varying the angle between the liquid droplet and a plane parallel to one of the first surfaces Ί 14 1323349. Wherein the liquid droplet system comprises a liquid 16, the method 17 of claim [19], an optical system comprising: a transmitter for providing an optical nickname, a receiving Receiver for receiving the optical signal and a lens for transmitting the optical signal to the receiver, the lens comprising:
a liquid droplet (liquiddr〇plet) that is polarized; and a bottom plate, the bottom plate comprising a first surface, the bottom plate is used to place the liquid droplet and comprise a first group An electrode, the first configuration of the first electrode of the group is such that the first electrode of the group can be selectively biased, whereby the liquid droplet and each of the first electrodes Forming a first voltage potential, wherein by changing the first potential, a contact angle between the liquid droplet and the bottom plate is adjustable 'by adjusting one of the lenses by controlling the electric field distribution focal length. The optical system of claim π, wherein the base plate further comprises: • a lubricating layer disposed between the liquid droplet and the set of first electrodes. 19. The optical system of claim 18, wherein the lubricating layer is a liquid repellent layer. 20. The optical system of claim 18, wherein the set of first electrodes are placed in the lubricating layer. 21. The optical system of claim 17, wherein the liquid droplets comprise liquid crystals. 22. The optical system of claim 17, wherein the liquid droplet comprises a macromolecule material.
15
TW094132592A 2005-09-21 2005-09-21 Lens with tunable focal length TWI323349B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW094132592A TWI323349B (en) 2005-09-21 2005-09-21 Lens with tunable focal length

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
TW094132592A TWI323349B (en) 2005-09-21 2005-09-21 Lens with tunable focal length
JP2006253981A JP5089116B2 (en) 2005-09-21 2006-09-20 Lens device
US11/523,621 US7605984B2 (en) 2005-09-21 2006-09-20 Lens with adjustable focal length

Publications (2)

Publication Number Publication Date
TW200712538A TW200712538A (en) 2007-04-01
TWI323349B true TWI323349B (en) 2010-04-11

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TW094132592A TWI323349B (en) 2005-09-21 2005-09-21 Lens with tunable focal length

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI466341B (en) * 2009-01-19 2014-12-21 Beam Gene Corp Ltd The deformable lens having a light emitting diode

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