WO2007031993A2 - Dispositif permettant de conserver une visibilite directe pour des instruments au moyen de lentilles inclinees et reglables - Google Patents

Dispositif permettant de conserver une visibilite directe pour des instruments au moyen de lentilles inclinees et reglables Download PDF

Info

Publication number
WO2007031993A2
WO2007031993A2 PCT/IL2006/001053 IL2006001053W WO2007031993A2 WO 2007031993 A2 WO2007031993 A2 WO 2007031993A2 IL 2006001053 W IL2006001053 W IL 2006001053W WO 2007031993 A2 WO2007031993 A2 WO 2007031993A2
Authority
WO
WIPO (PCT)
Prior art keywords
instrument
lens
base
lens system
working area
Prior art date
Application number
PCT/IL2006/001053
Other languages
English (en)
Other versions
WO2007031993A3 (fr
Inventor
Daniel Farb
Original Assignee
Daniel Farb
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 Daniel Farb filed Critical Daniel Farb
Publication of WO2007031993A2 publication Critical patent/WO2007031993A2/fr
Publication of WO2007031993A3 publication Critical patent/WO2007031993A3/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/002—Magnifying glasses
    • G02B25/005—Magnifying glasses with means for adjusting the magnifying glass or the object viewed
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal lenses

Definitions

  • the present invention relates to a lens attached to instruments, and, more particularly, to methods of visualizing work performed by the instruments.
  • the ability to see what one is doing with instruments, particularly finer ones, is an old problem, which applies to medical equipment, specialty equipment in areas such as car repair, consumer items such as tweezers for removing splinters, and fine manufacturing, assembly, and construction.
  • the problem involves magnification (enlarging the image), accommodation (the ability of the eye to focus on the image), and refraction (the ability of the eye to see at various distances with a focal point that differs among far-sighted and near-sighted people).
  • the accommodation problem is particularly distressing for older people, particularly past the age of 40, when they usually require additional lenses to address the problem of presbyopia (the inability to bring near focus to bear on an object due to loss of accommodative power).
  • Prior solutions have been directed at the magnification problem alone and require the user to move either one's own head or arm while holding a separate device such as a magnifying glass in order to maintain focus.
  • Some solutions have included magnifying or telescopic lenses mounted on headpieces or attached to glasses, but these tend to be either inconvenient or bulky for much work and are used mostly in certain types of surgery.
  • Surgical microscopes are a good solution, but not all instruments are medical and not all situations of fine instrument use are appropriate for an operating room.
  • Other solutions have involved fixing a magnifying glass to the instrument itself.
  • Lenses attached to a fixed location on the instrument are difficult for people with different refractive states (in other words, different eye glass prescriptions) to use uniformly well.
  • Lenses attached to a side arm require separate manipulation of the side arm while using the instrument, and usually do not hold the focus on a particular spot as they are moved. (The angle of focus moves from one spot to another as the side arm is moved.)
  • US Patent 6,612,262 is an animal tattoo device. A magnifying glass is mounted onto a separate, static arm of a tweezer-like device.
  • US Patent 6,598,311 uses a fixed magnifying glass to read a tape measure.
  • US Patent 6,083,177 is a static magnifying lens positioned on a biopsy sheath that is circular and surrounds the sheath.
  • US Patent 5,358,297 is a tweezers with hinged magnifying glass attached to a separate arm.
  • US Patents 5,263,754 and 4,836,596 similarly have attached arms.
  • Multifocal lenses are a recent invention and are implanted inside the eye after cataract removal in order to provide one lens that enables focus at different focal lengths. They have not heretofore been applied to the problem of obtaining focus on a particular point by being attached to an instrument, or by being used in combination with a second lens in order to magnify an area of interest.
  • An example of the usefulness of the invention would be a forceps for either home or surgical use that required no additional instrumentation or visual aids in order to obtain a magnified, focused view of the end of the forceps as it was used to remove a splinter or hold a piece of tissue. As a different field of vision is required around the working area, the lens could be moved back and forth without disturbing the line of sight.
  • the current invention proposes innovative mechanisms of focusing on an area of interest for which an instrument is used.
  • the invention differs in a significant way from prior art, which has not addressed the concepts of a movable lens and of adjustment of the angle of the lens while moving the lens.
  • the problem affects users in many different situations in a significant manner.
  • FIG. 1 is a schematic representation of a groove on an instrument.
  • FIG. 2 is a schematic representation of clips on the outer surface of an instrument.
  • FIG. 3 is a schematic representation of a groove with protrusions.
  • FIG. 4 represents different angles of the lens attached with a hinge to a lens holder to a leg at different distances in order to maintain focus on the working area.
  • FIG. 5 is a schematic representation of the principle of different angles of the lens attached without a hinge to a holder to a leg at different distances in order to maintain focus on the object of interest.
  • FIG. 6 is a schematic representation of two lenses at an angle.
  • FIG. 7 is a schematic representation of a series of equivalently-shaped nubbins or indentations at different angles.
  • FIG. 8 is a schematic representation of a gear attached to a leg.
  • FIG. 9 is a superior view of an instrument that shows how the lens would also tilt side to side.
  • FIG. 10 is a picture of a nub/depression moving system.
  • FIG. 11 is a picture of a groove system at the base of the sliding lens system.
  • FIG. 12 is a picture of a lens holder placed on a forceps.
  • FIG. 13 is a picture of a stepper mechanism.
  • FIG. 14 is a picture of the parts of a pin-tilt mechanism.
  • FIG. 15 shows a system of pressure and limited ribs holding the magnifying device.
  • FIG. 16 is a lens holder that twists from side to side.
  • FIG. 17 is a lens holder with grooves.
  • FIG. 18 is the inside of a lens holder with grooves.
  • a lens system refers to the use of at least one lens in the current invention, such that a second lens can be placed in a stationary position, or attached to the same base, leg, and lens holder, or placed on a second base, leg, and lens holder.
  • This lens system may be attached to an instrument that clips onto another instrument (a tool), or attached to the tool directly.
  • a lens holder is used interchangeably with extender, because the lens may be held by a holder that connects directly to the leg or by a holder that moves in relation to the leg.
  • the term leg is used to refer to the shaft that arises from the base of the lens system. That term is used to distinguish it from the common description of instruments as having arms.
  • the term working area may refer to the tip of an instrument, or the area that the tip of the instrument needs to work on.
  • An instrument may refer either to a tool or device such as a tweezers or wrench, or to a portable line of sight attachment that attaches to or clips on to another instrument. Since the leg, lens holder, and lens are attached to the base, movement of the base or the lens system refers to movement relative to the instrument to which the base is non-fixedly attached. That group is referred to as a first instrument.
  • a second instrument is the part — usually but not necessarily the functional instrument such as a tweezers — to which the first instrument with the adjustable lens is attached.
  • instrument refers to the combination of the ' instrument that clips on to the tool or to the tool itself.
  • the central line of sight refers to the imaginary line that passes through the center of a lens perpendicular to the plane of the lens. Said imaginary line intersects the working area.
  • the present invention is of a lens which can be attached or built into the arm of an instrument in any of several ways to achieve the purpose of magnifying a particular area without the use of extra side arms and other instruments and magnifying glasses, and which maintains a central line of sight on the working area at different distances.
  • the present invention can be used to perform many household, medical, mechanical, and industrial tasks in a more precise manner using any of several possible configurations of the principle just noted.
  • Figure 1 illustrates the shaft of an instrument (Part number 1), which for illustrative purposes is an outline of a tweezers, but which could be any device.
  • Part number 2 A groove or protrusion (Part number 2) is built into the instrument, thereby allowing the attachment of a lens system, which may be moved to and from an object.
  • the lens may attach to a separate device attached to the tweezers, the instrument.
  • a lens system may be attached to an instrument arm by means of an adjustable clip connecting the first to the second instrument, or by means of protrusions and depressions on the outside of the instrument that allow a lens system to be attached.
  • This clip could be detachable and particularly suited for sterilization in medical devices.
  • Figures 1 and 2 show the construction of the instrument [or attachment to the instrument as in part (3)] in such a manner that the lens may be moved along the shaft of the instrument.
  • Figure 12 is a picture of a lens holder placed on a forceps. It illustrates how the holding means in Figures 1 and 2 might result in a lens being held.
  • the basic parts of a lens system are a base with a holder or slider, a lens, an optional extender of the lens as part of a lens holder, and a leg that holds the lens holder and is attached on the other side to the base.
  • the leg may be fixedly part of the lens holder in some embodiments.
  • Figure 14 is a picture of the parts of a pin-tilt mechanism. This invention allows adjustment but not an automatic line of sight.
  • Part (40) is a slider-holder integrated into the part referred to as the base.
  • Part (42) is a pin-tilt or other means to tilt the lens in a fixed plane in the line of sight of the viewer.
  • Part (44) is a groove or other structure that permits the attachment of the base (46).
  • the base is then connected to a leg (48), which then holds the lens (49).
  • the lens may optionally have an extender called a lens holder, or the lens may be fixedly attached to the leg.
  • the lens may optionally pivot from side to side.
  • Figure 15 illustrates a system of pressure and limited ribs holding the magnifying device.
  • Part (52) is the slider — apart of the base—of the lens system.
  • (53) is the base of the lens portion.
  • (54) is the leg attaching the base to the lens holder.
  • (55) is the lens holder.
  • (56) is the lens.
  • (57) is the pin tilt. The figure also shows how pressure and limiter ribs on the side keep the base in place on the slider.
  • Figure 16 is a lens holder that pivots from side to side. It shows the basic parts of the embodiments of the inventions.
  • Part (60) is a lens system possessing a holder/slider. It optionally slides back and forth on the instrument it is attached to.
  • Part (66) is a base in the form of a tilt shaft.
  • Part (64) is the leg attached to the .base and attached to a lens holder.
  • Part (62) is the lens.
  • the lens system with the slider may also be attached to the slim side of an instrument. It is merely illustrated here on the thick side of a forceps.
  • Figure 3 illustrates one of many ways in which the attachment for the base holding the lens may be created.
  • a series of protrusions and depressions will allow a base to lock into place along a line.
  • the groove, instrument, or clip may have regularly spaced nubs (Parts number 4) for holding the lens system in place. Not shown from this angle is the possibility that the protrusions have slightly different orientations to lock in the upper part of the instrument with the lens at different angles in order to maintain focus on the working area.
  • Yet another configuration not shown allows the upper section of the instrument to push against the sides of the groove, attachment, or instrument in such a way that it may be moved into different positions. This can be accomplished with or without a spring.
  • Figure 4 illustrates another embodiment of the invention. It is a side view of an instrument with the work area of the instrument at the left. At different distances from the work area, the lens (Part number 6) is affixed to a leg (Part number 5), which is attached to the base at a different angle. These different angles are constructed so that the point of focus of the lens at all times remains upon the work area of the instrument.
  • Figure 5 illustrates a different version of the invention.
  • Figure 4 shows a means for tilting the lens alone
  • Figure 5 shows a leg attached to the lens (directly or indirectly), which tilts as a unit (Part number 7) at different distances from the tip of the instrument.
  • Figure 6 is a schematic representation of the principle of using a plurality of lenses to adjust the line of sight on the working area, in which at least one lens is movable and maintains the necessary angle to maintain focus on the area of interest.
  • the same picture can represent the different locations of a single lens, whether of one power or multifocal, mounted in such a way that it maintains focus on an instrument tip.
  • Figure 6 shows another possible embodiment of the invention.
  • a groove (or plurality of protrusions or depressions) can be set at an angle (Part number 9) on the base or clip attached to the instrument, with the portion containing the lens capable of attaining different positions at different distances from the tip with the line of sight remaining on the tip of the instrument on the left.
  • the line represents a device on an instrument arm or clip which is angled in order to provide a direction of movement for the base with the lens.
  • Figure 6 is also an illustration of how two lenses (Part number 8 is one of them), whether one is multifocal or not, could work together to magnify the tip of the instrument.
  • Figure 7 is a schematic representation of how a series of equivalently-shaped depressions or protrusions can be used to affix a corresponding depression or protrusion on the instrument at different angles.
  • Figure 7 illustrates one way of designing the manner in which the lens may extend in a parallel line to the shaft of the instrument and may automatically assume the correct angle to remain focused on the tip of the instrument on the left.
  • Depressions or protrusions of a fixed shape on the base of the lens system that match a fixed shape on the shaft or clip of the instrument enable the positioning of the lens at different angles at different distances from the tip of the instrument.
  • the base may have a place for squeezing a part that causes parts of the fixture to protrude and retract so that it can be moved to match the part connected to the instrument shaft.
  • Figure 18 will illustrate that in more detail.
  • Figure 8 is a schematic representation of how a series of ridges (11) on the instrument would interlock with a base containing gears (12) and then connect to the leg or lens holder to alter the angle at which the attached lens points. Thereby the lens automatically maintains a line of sight on a working area.
  • the gears may automatically turn the lens an amount that maintains focus on the tip of the instrument.
  • a multifocal lens may be fixed in one location but angled towards the tip of the instrument.
  • the lens may move sideways in addition to up and down in order to maintain focus on the end of a device.
  • An example would be a right-angle forceps (Part number 13) of the type shown in Figure 9.
  • An internal gear mechanism can maintain the focus on a point while it is moved.
  • Figure 10 is a picture of a protrusion/depression moving system.
  • Part (18) is the lens.
  • Part (17) is the leg that connects to Part (16), the base.
  • the base is responsible for moving the lens system forwards and backwards in a groove (15) on the instrument.
  • the groove is part of the instrument or an attachment to the instrument.
  • Parts (10) and (14) represent an interlocking array of protrusions and depressions that lock in the base at different positions at different angles.
  • Figure 11 is a picture of a groove system at the base of a sliding lens system. It shows one concept of automatic maintenance of line of sight for the tip of a straight instrument.
  • (22) is part of the lens system;
  • (19) is part of the instrument.
  • Extensions on parts (19) and (22) help hold the sliders in place.
  • the bar in this illustration contains 6 grooves (but the invention can be more or less than 6).
  • On top of the bar is a leg attached to a lens.
  • a different and smaller shape can replace the functionality of slider (19). This shape can be snapped on, screwed, or glued to the tweezers. A built-in shape is an option for an instrument dedicated to a certain function.
  • Figure 13 is a picture of a stepper mechanism that is somewhat the reverse of the previous automatic line of sight concept.
  • There is one slider (32) on the lens system which is linked by an arc-shaped flexible bar to the base of the lens system.
  • the bar in this illustration has one nipple shape (30) but all that is significant is that it should have a means to interact with the grooves.
  • On top of the bar is the leg, part (38).
  • the lens In the Zero Tilt Position the lens is directed to the tip of the instrument. Moving the lens system's slider (32) upward on the grooves will cause the arced bar of slider (32) to climb until it engages with one of the rest points (34). TMs engagement will affect the angle of lens tilt and keep the lens focused on the instrument tip. Each rest point in the groove will change the angle by x degrees from the zero position. Moving the slide backwards will increase the tilt position of the lens. Moving the slide forward will decrease the angle of tilt but keep the line of sight. This concept produces full and automatic adaptation of the user and the lens to the tweezers tip.
  • Figure 17 is a lens system with grooves (70) on the body of the instrument (Figure 18, 75).
  • Figure 18 is the inside of a lens system with grooves.
  • There is one slider (Figure 17, 72; Figure 18, 76) on the base which has a "tooth" positioned into grooves along the side of the instrument.
  • the slider of the base is attached to the instrument by a "U” shape and the knob ( Figure 18, 77) with a spring ( Figure 18, 78). Pressure applied by the user on the knob releases the slider from one position and allows the slider to move to the next position.
  • the leg Figure 17, 72 is attached to the lens holder.
  • Mechanism of action In the Zero Tilt Position the lens is directed to the tip of the instrument. Moving the base's slider ( Figure 17, 72; Figure 18, 76) forward will end by engagement into an angled position on the following rest point. This engagement will affect the angle of lens tilt and keep the lens focused on the instrument's tip. Each rest point will change the angle by x degrees from the zero position. Moving the slide backwards will decrease the tilt position of the lens. Moving the slide forward will increase the angle of tilt but keep the line of sight. This concept produces full and automatic adaptation of the user and the lens to the instrument tip.
  • More than one lens may be used on each device; at least one lens would be mobile.
  • the extender may be replaceable and different lens sizes can be used.
  • the present invention successfully addresses the shortcomings of the presently known configurations by providing a mechanism of assuring steady, magnified focus on the area of interest to the person working with an instrument and overcoming the difficulties of poor accommodation and the need for other instruments and arms to provide magnification.
  • a device for maintaining a central line of sight on a working area comprising a. a lens system, comprising at least one lens with a focal point at the working area of an instrument, a lens holder holding the lens system, a leg attached to the lens holder on a first side of the leg, and a base attached to the leg on a second side of the leg, b. an instrument to which the base is attached, c. means for centering the central line of sight of the lens on a working area as the base changes distance from the working area.
  • At least one lens of the lens system is a multifocal lens.
  • the lens holder has a means for rotating the lens.
  • the base is attached non-fixedly to the instrument.
  • the base is attached to an arm of the instrument.
  • the invention further comprises a protrusion from the base notched on its underside, an instrument, and a protrusion from the instrument, wherein the base has a protrusion connecting to the underside of the leg, said underside having notches, and wherein said instrument has a protrusion facing the notched region on the lens system, said protrusion of the instrument engaging the notches of the lens system.
  • Another embodiment further comprises a protrusion from the lens system, an instrument, and a set of notches on the instrument facing the bottom of the leg of the lens system, wherein the lens system has a protrusion on the underside of the leg, said underside having at least one protrusion, and wherein said lens system's protrusion faces the instrument, said protrusion of the lens system engaging the notches of said second instrument.
  • the lens system's base and the instrument have a plurality of matching protrusions on one and depressions on the other at progressively different angles at different distances from the tip of the instrument.
  • This last embodiment may further comprise a spring, connected to the base, operating to reversibly lock and unlock said protrusions and depressions.
  • Another embodiment further comprises a clipping mechanism attached to the lens system.
  • the lens system has a means for rotating the lens on the axis of the leg.
  • Another embodiment further comprises a set of gear teeth on the instrument and an interlocking gear on the base of the lens system, wherein the base gear is operative in its movement to adjust the lens to maintain its center of sight on the working area at each distance from the working area.
  • an electronic mechanism adjusts the angle of said lens system to maintain the line of sight on a working area, with simultaneous movement in distance and angle.
  • Another embodiment further comprises at least a second lens on said lens system.
  • a device for maintaining a central line of sight on a working area comprising a multifocal lens connected to a lens system, with its central line of sight on the working area of said instrument.
  • Another embodiment further comprises a means for maintaining the central line of sight on the working area from different distances of the lens from the working area by simultaneously adjusting the angle of the lens system.
  • a device for maintaining a central line of sight on a working area comprising a. a lens system, comprising at least one lens with a central line of sight directed to the working area of a second instrument, a lens holder holding the lens system, a leg attached to the lens holder on a first side of the leg, a base attached to the leg on a second side of the leg, b. an instrument to which the base is attached on the second side of the base, c. a groove in the instrument, said base fitting into said groove at an angle of 180 degrees to the length of the instrument. d. a pin, inserted into said base and said instrument at an angle perpendicular to the length of the instrument.
  • Another embodiment further comprises a set of pressure and limiter ribs on the instrument facing the sides of the base.
  • a method of mechanically adjusting the spatial relationship of the central line of sight of a lens system to a working area wherein, as title distance of the lens system from the working area changes, the angle of the lens to the working area in at least one dimension mechanically adjusts to maintain the central line of sight on the working area.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne un moyen permettant de fournir une visibilité directe et/ou un grossissement à partir d'une lentille à une zone de travail sans avoir à tenir ou à utiliser des dispositifs ou des bras séparés de l'instrument afin de focaliser la zone de travail. De plus, plusieurs solutions mécaniques sont apportées au problème que pose la conservation de la visibilité directe d'une lentille sur une zone de travail lorsqu'elle se déplace. Un concept de base de la présente invention consiste à incliner la lentille de grossissement à différents angles et à différentes distances afin d'obtenir une visibilité directe automatique. L'invention trouve son application dans de nombreux dispositifs chirurgicaux, industriels et de consommation.
PCT/IL2006/001053 2005-09-13 2006-09-10 Dispositif permettant de conserver une visibilite directe pour des instruments au moyen de lentilles inclinees et reglables WO2007031993A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71612505P 2005-09-13 2005-09-13
US60/716,125 2005-09-13

Publications (2)

Publication Number Publication Date
WO2007031993A2 true WO2007031993A2 (fr) 2007-03-22
WO2007031993A3 WO2007031993A3 (fr) 2009-04-30

Family

ID=37865376

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2006/001053 WO2007031993A2 (fr) 2005-09-13 2006-09-10 Dispositif permettant de conserver une visibilite directe pour des instruments au moyen de lentilles inclinees et reglables

Country Status (1)

Country Link
WO (1) WO2007031993A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010072485A2 (fr) * 2008-12-22 2010-07-01 Robert Bosch Gmbh Machine-outil, en particulier machine-outil portative

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6188530B1 (en) * 1998-09-11 2001-02-13 Minolta Co., Ltd. Driving apparatus
US7342733B2 (en) * 2005-06-08 2008-03-11 Sony Corporation Lens actuating device and image pickup apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6188530B1 (en) * 1998-09-11 2001-02-13 Minolta Co., Ltd. Driving apparatus
US7342733B2 (en) * 2005-06-08 2008-03-11 Sony Corporation Lens actuating device and image pickup apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010072485A2 (fr) * 2008-12-22 2010-07-01 Robert Bosch Gmbh Machine-outil, en particulier machine-outil portative
WO2010072485A3 (fr) * 2008-12-22 2010-09-02 Robert Bosch Gmbh Machine-outil, en particulier machine-outil portative
US8714064B2 (en) 2008-12-22 2014-05-06 Robert Bosch Gmbh Machine tool, particularly a hand-held power tool

Also Published As

Publication number Publication date
WO2007031993A3 (fr) 2009-04-30

Similar Documents

Publication Publication Date Title
US7658729B2 (en) Attachment device and system for corneal irrigating cannula and method thereof
JP5649282B2 (ja) 光学観察装置のためのアタッチメント装置
US6667832B2 (en) Loupe hinge for magnification viewer
US5541767A (en) Bioptic telescope system for use with bifocal spectacle
US7542204B2 (en) Prism for ergonomic position
JPH09505221A (ja) 間接検眼鏡検査レンズ・システム及びアダプタ・レンズ
JP3171527U (ja) 眼鏡着脱式ライト
US4807987A (en) Deep cavity binocular loupe
JP6525398B2 (ja) レンズ鏡筒及びルーペ
US3945712A (en) Operating magnifier and miniature opthalmoscope
WO2007031993A2 (fr) Dispositif permettant de conserver une visibilite directe pour des instruments au moyen de lentilles inclinees et reglables
CN211094008U (zh) 一种眼镜验配测量架
JP2019092844A (ja) 前置レンズ装置及び眼科用顕微鏡
EP3641625B1 (fr) Système de visualisation de rétine jetable à puissance optique élevée et champ de vision large
US5189449A (en) Retinoscope with external control sleeve
JP7109052B2 (ja) 双眼ルーペおよび双眼ルーペ装置
KR101982810B1 (ko) 이미지 센서가 내장된 수술용 내시경
JP2008015033A (ja) 拡大撮像装置
CN211094002U (zh) 一种眼镜验配测量架
CN211094001U (zh) 一种十字孔镜片及眼镜验配测量架
CN211094009U (zh) 一种眼镜验配测量架
CN112998643B (zh) 一种光学观察组件及其应用
TWI666466B (zh) 頭戴式放大鏡之裝置
JP3005217U (ja) 望遠鏡または双眼鏡のアタッチメントの切換え装置
CN112773323A (zh) 一种十字孔镜片及眼镜验配测量架

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06780478

Country of ref document: EP

Kind code of ref document: A2