DE102010022934A1 - Optical assembly has optical element with rotational-symmetrical cross-section that is approximately perpendicular to symmetrical axis, where lamp holder is provided for optical element with three holding assemblies - Google Patents

Optical assembly has optical element with rotational-symmetrical cross-section that is approximately perpendicular to symmetrical axis, where lamp holder is provided for optical element with three holding assemblies

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Publication number
DE102010022934A1
DE102010022934A1 DE102010022934A DE102010022934A DE102010022934A1 DE 102010022934 A1 DE102010022934 A1 DE 102010022934A1 DE 102010022934 A DE102010022934 A DE 102010022934A DE 102010022934 A DE102010022934 A DE 102010022934A DE 102010022934 A1 DE102010022934 A1 DE 102010022934A1
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DE
Germany
Prior art keywords
optical element
axis
symmetry
optical
collar
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
DE102010022934A
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German (de)
Inventor
Knut Hage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Priority to DE102010022934A priority Critical patent/DE102010022934A1/en
Publication of DE102010022934A1 publication Critical patent/DE102010022934A1/en
Application status is Ceased legal-status Critical

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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs

Abstract

The optical assembly has an optical element (1) with a rotational-symmetrical cross-section that is approximately perpendicular to a symmetrical axis (S). A lamp holder (2) is provided for the optical element with three holding assemblies (3) that are arranged on a circle around the symmetrical axis in the lamp holder. The holding assemblies fix the optical element in the lamp holder in a form-fir or force-fit manner.

Description

  • The invention relates to an optical assembly comprising an optical element with a perpendicular to an axis of symmetry approximately rotationally symmetrical cross-section, and a socket in which the optical element with high accuracy in a stable position and low voltage is to be maintained.
  • In the prior art, various devices are known to store lenses as low stress and stable position. This is particularly important when precise alignment of the optical axis is necessary. This is the case, for example, in photolithography, but also in astronomical telescopes and in particular also in such optics that are to be used in satellites, where a subsequent adjustment or readjustment is not possible or only under the most severe conditions in the rule.
  • In the EP 1 094 348 B1 an elastic lens wearer is described. With this an elastic clamping of the lens is possible, which is particularly suitable for temperature and shock loads. The socket has a plurality of segments which engage in an annular groove on the edge cylinder of the optical element, the lens. The segments are biased to hold the weight of the lens positively and non-positively. However, if highest accuracies are required, stresses that arise as a result of these pretensions can already exceed the acceptable tolerances. Compared to the usual gluing of lenses in versions leads to the waiver of a cohesive connection between the segments of the lens in addition to the fact that the optical axis is not secured in position against radial forces and pressure-sliding effects can cause displacements. The abutment surfaces are obliquely oriented with respect to the optical axis to prevent undefined slippage during thermal expansions and shocks, therefore higher radial forces are necessary to hold the lens in place. This is disadvantageously associated with higher voltage inputs.
  • This is also the case in the DE 10 2004 018 656 A1 described optical element of the case. The optical element, preferably also a lens here, has an edge region, on the circumference of which holding regions are attached at regular intervals. These holding areas have contact areas that come into contact with corresponding contact areas on holding bodies which are arranged on the holder. The contact surfaces and the contact regions are formed so that the contact is concentrated to the smallest possible area, for which the contact surfaces and / or the contact areas one or two times, ie in one or two spatial directions, are curved, so that the contact surface as possible linien- or punctiform. The holder is in the sense of a self-adjusting terminal pairing, the lens is held axially and radially positive and non-positive. Due to the inclined with respect to the optical axis bearing surfaces higher radial forces are necessary to secure the lens in position against shocks and temperature expansions, together with limited to very small contact areas force effects makes the bias particularly noticeable negative.
  • In the US 6,469,844 B1 is described an optical assembly with lens and lens holder, which is intended for disposable cameras. The lens - made of plastic - and the socket have a collar with vertical to the optical axis and parallel contact surfaces, which are therefore vertically to each other. After insertion into the socket, the lens is held there only loosely, a fixation takes place by brackets are thermally deformed and cool on the circumferential collar of the lens attacking again. The lens is then fixed, and at the same time allows this connection later, a simpler recycling of the lens, since it can be removed without much effort from the holder. However, as it is a disposable camera system, no special precautions are needed to hold the lens in position and low tension by securing forces at temperature, and no precise alignment of the lens is required.
  • In the US 6,400,516 B1 describes a system of lens and socket in which the lens is clamped several times orthogonal to the optical axis, which facilitates the adjustment of the lenses. The movement of the lens is limited both in the tangential direction and in the axial direction by corresponding clamping devices, the construction is very complicated and includes many items that increase the susceptibility of the system. At the periphery of the lens are projections which are formed substantially rectangular in shape and which serve the axial and tangential fixation. Due to the complicated structure is expected that the arrangement extreme temperature loads and other extreme loads, such as moisture, accelerations, UV radiation, especially over a period of several years does not withstand.
  • In the DE 103 42 269 A1 a low-tension optical socket is described in which a lens is fixed at three points in the axial direction by means of a circumferential spring ring. The lens is here - which is production technology favorable - directly with its edge region, which still has the corresponding lens curvature inserted into the socket. In particular, on its underside, it is therefore on a sloping surface, which can quickly lead to uncontrolled shifts at shock or temperature loads. Also, the spring ring engages the slope.
  • In the DE 10 2006 060 088 A1 Finally, a socket is described with an optical element which is relatively simple, but requires an adhesive connection between the lens and the holder. Especially the use of adhesives for primary support of the lens is disadvantageous because such adhesives are only limited temperature and UV stable and age faster under extreme conditions, so that the position of the lens in the system can not be kept stable in the long term. Adhesives also have a high coefficient of thermal expansion, which can also lead to instabilities.
  • The other conventional solutions, as described above, and manage without adhesive, are not sufficiently stable in temperature changes due to expansion differences and by the support and Kraftflußgestaltung or unfavorable Haltekraftfluß not stress, they are therefore not suitable for the highest demands ,
  • The object of the invention is therefore to further develop an optical assembly of the type described above, that without the use of adhesives with primary holding function as stable as possible and low-tension mounting of optical elements, in particular of lenses, under extreme environmental conditions such as temperature, UV radiation and In addition, a simple structure of the optical assembly is in the foreground, which allows a change of the optical element with little effort compared to solutions, as they are known in the art, so it should be required.
  • This object is achieved by an optical assembly comprising an optical element with an approximately rotationally symmetrical cross-section perpendicular to an axis of symmetry and a socket for the optical element with at least three arranged on a circle about the axis of symmetry in the socket holding assemblies, the optical element in the Fasten form-fitting and non-positive, dissolved, wherein the optical element has a at its periphery perpendicular to the axis of symmetry at least one collar-like elevation, or a collar-like configuration, with an upper and a lower spaced lower collar surface whose normal are parallel to the optical axis, and with an outer collar surface parallel to the symmetry axis.
  • There are different, adaptable to the specific design of the optical element options for the realization of the collar-like training. Simple lenses with convex, planar or concave optically active surfaces usually have a circular cross-section perpendicular to the axis of symmetry, which then corresponds to the optical axis. Here, the collar-like elevation is preferably configured as a cylindrical collar having a cylindrical outer collar surface that runs around the circumference of the optical element perpendicular to the optical axis. On the outer collar surface are the differential normals, which are each formed in the tangent plane of a surface point, in the radial direction. The support assemblies are then preferably for voltage reasons, but not necessarily arranged rotationally symmetrical on a circle about the axis of symmetry, three support assemblies are preferably arranged at an angle of 120 ° to each other.
  • However, more complex optical elements with free-form surfaces do not have an optical axis in this sense, nor do they have to be rotationally symmetrical, since the optically active surfaces can be shaped as desired. In order to still be able to use them in the version, such elements also have collar-like formations, preferably a number corresponding at least to the number of retaining assemblies. The collar-like formations are each formed here with a flat outer collar surface. One of the directions that span the plane lies parallel to the axis of symmetry, ie the outer collar surface lies parallel to the axis of symmetry. All outer collar surfaces lie tangentially on a common circle around the symmetry axis. Preferably, they are rotationally symmetrical with respect to rotations of 120 °. However, the dimensions of the optical element may require to deviate from this symmetry.
  • Of course, the geometrically simpler optical elements described above can of course also have a corresponding number of bundle-like configurations instead of a cylindrical collar, if, for example, it depends on a material-saving and space-saving design. However, since this design has more edges, there may be additional stresses here. Likewise, the optical elements with free-form surfaces may be formed with a circumferential collar, but the outer collar surface then no longer has to be cylindrical.
  • Each retaining assembly includes a fixedly formed with a radially resilient web connected contact body, on which a lower contact surface and a parallel to the symmetry axis aligned contact surface is formed. The lower contact surface on which the optical element is mounted with its lower collar surface may be flat, then it has a normal parallel to the axis of symmetry. However, it can also be designed in the manner of a bead having, for example, a semicircular cross-section, the contact surface then being in the form of a ring cutout, with the differential normal vector lying parallel to the axis of symmetry at the highest elevation of the bead on which the optical element lies , Also, the contact surface can be designed flat or simply curved, in the case of a cylindrical outer collar surface both are then in each case in a tangential plane in contact. The support assemblies are preferably arranged rotationally symmetrical on the circle around the axis of symmetry for stress reasons, so three support assemblies are preferably arranged at an angle of 120 ° to each other. This is advantageous especially in the case of optical elements with a circular cross section. However, this symmetry can be deviated from, in particular in the case of optical elements with free-form surfaces, if the construction of the optical element so requires. Thus, the holding assemblies can be arranged in the socket without adherence to this symmetry on the circle. It is essential that the normal vectors of the surfaces involved point in the direction of the symmetry axis at the holding points at which the optical element is in contact with the holding assembly in the radial direction.
  • The web of each support assembly is performed under bias, so that the contact surface of the contact body and the outer collar surface are in contact and the optical element is fixed positively in the radial direction relative to the axis of symmetry. The webs may be incorporated into the socket, for example by wire erosion. Web and contact body can be made in one piece, but the contact body can also be retrofitted to the web, for example by means of screws or adhesives. However, in terms of easier handling and long-term stability, it is advantageous to use as few materials as possible and as little releasable connections as possible, so that one-piece manufacturing is preferable.
  • Finally, the retaining assembly also comprises a spring element which is designed to exert a predetermined contact force on the upper collar surface and presses the collar against the lower contact surface. In this way, the optical element is positively and positively fixed in the axial direction, as well as additionally fixed non-positively in the radial direction. The spring element can be configured, for example, as a bolted to the contact body spring clip; By means of the screw adjustment of a set screw, the contact pressure can be varied. This also allows by loosening the screw on the screw easy removal of the optical element from the socket. By using a spring element is also ensured that the contact pressure is not too large at normal setting of the screw, so that the optical element is not at this point under higher voltage than just necessary.
  • By the optical element is fixed positively and non-positively in two mutually perpendicular directions using a spring element, the highest position stability and low tension are guaranteed. The disadvantages of oblique contact surfaces and force directions, namely that oblique force components arise and it can come through friction and expansion to undefined slippage in temperature changes or shock loads are avoided in this way. Due to the bias of the webs also the play of the optical element in the socket in the radial direction - based on the axis of symmetry - eliminated.
  • In case of expansion differences, the lens can not tilt, the attachment forces do not change significantly. The holding forces can also be kept small in magnitude compared to solutions, as are known in the art, so that the voltages in the optical element are kept low. Temperature-related expansions are centrally symmetric when the optical element is rotationally symmetric with respect to rotations about the optical axis at arbitrarily small angles, and the socket rotationally symmetric with respect to rotations by discrete angles - in the case of three support assemblies, this angle is 120 ° - is.
  • Although the use of an adhesive agent for producing a cohesive connection is not necessary, it may be advantageous to additionally secure the optical element to the lower contact surface and / or the contact surface of the contact body of each support assembly via an adhesive agent to secure against external influences. The adhesive or the cohesive connection does not fulfill the purpose of a position definition, but serves to further extend the load limits with respect to the temperature and material loads.
  • In a further advantageous embodiment of the invention, the radial collar surface is at least approximately in the region of the neutral bending fiber - this is in the case of side-symmetrical and rotationally symmetric lenses, for example, in the middle and perpendicular to the axis of symmetry, otherwise depending on the geometry of the optically active surfaces more or less offset in one direction to - the optical element. This also contributes to a stress-free storage as possible.
  • It is understood that the features mentioned above and those yet to be explained below can be used not only in the specified combinations but also in other combinations or alone, without departing from the scope of the present invention.
  • The invention will be explained in more detail for example with reference to the accompanying drawings, which also disclose characteristics essential to the invention. Show it:
  • 1 a possible embodiment of an optical assembly with an optical element and a socket,
  • 2 a section through the optical assembly from 1 .
  • 3 a further embodiment of an optical assembly with an optical element and a socket,
  • 4 a section through the optical assembly from 3 .
  • 5 various configurations for holding assemblies that differ in their web forms, and
  • 6a , b is a more complex optical element with reduced symmetry.
  • In 1 an optical assembly is shown, the one about an optical axis - coincident here with the symmetry axis S - rotationally symmetric optical element 1 having a circular cross-section perpendicular to the optical axis, and a socket 2 for the optical element 1 with at least three rotationally symmetric in the socket 2 arranged holding assemblies 3 that the optical element 1 in the version 2 fix positively and non-positively. The optical element 1 has a circumferential on its circumference, cylindrical collar 4 on. The Bund 4 in turn has an upper waistband 5 and a lower collar surface spaced therefrom 6 whose normal are parallel to the optical axis, and an outer cylindrical, radial collar surface 7 on the outer circumference. The differential normals of this radial collar surface - referred to the respective tangential plane - lie in the radial direction.
  • Each retaining assembly 3 comprises a contact body 8th , with a radially resilient web 9 is firmly connected. Where the contact body 8th in contact with the optical element 1 Therefore, the web is tangent to the circumference of the optical element 1 , The bridge can be made in different ways. For example, the bridge is conceivable 9 manufacture as a separate component, which then in a corresponding recess of the socket 2 set and fixed there. But to use as few materials as possible, is the bridge 9 usually an integrated component of the socket 2 himself, which is out of date 2 For example, by material removal methods such as wire erosion is worked out. Different web shapes are for example in 5 However, this selection represents only a small range of possible web shapes.
  • At the contact body 8th are a lower contact surface 10 and a parallel to the optical axis aligned contact surface 11 educated. The lower contact surface 10 can be even, but it can also - as in the clipping in 2 shown - designed as a bead, so that the support in cross-section on a very small area compared to the radial extent of the lower collar surface 6 is limited. With regard to the avoidance of additional stresses in the optical element, it is advantageous to choose this area rather small, since then can be kept lower with temperature-induced expansion changes in the radial direction due to static friction voltages, as if the lower contact surface 10 is flat and the lower waistband 6 completely rests. The contact surface 11 can also be flat or curved convex, here too, the contact area is limited to the smallest possible area on the lens circumference. Important, however, is that the contact surface 11 at least in the area where they meet with the radial outer fret surface 7 is in contact, extends axially, so that the contact area in the axial direction is as large as possible and a power flow is ensured in the radial direction. It is also advantageous for a low tension when the radial outer collar surface 7 at least approximately in the region of the neutral bending fiber of the optical element 1 lies.
  • The optical element 1 is with its lower waistband 6 on the lower contact surface 10 stored. In the 2 shown lower contact surface 10 represents a planar portion of a bead on the contact body 8th is trained. The retaining assembly 3 also includes a spring element, which on the upper collar surface 5 a predetermined contact force is exercising and the federal government 4 on the lower contact surface 10 pushes, so that the optical element 1 in the axial direction non-positively and positively and positively fixed in the radial direction. This spring element is here as to the Contact body 8th bolted spring clip 12 designed. The contact pressure can be adjusted by means of the position of a set screw 13 be varied, with fully screwed set screw 13 the spring force is the greatest. The spring clip 12 is integrally formed and has a fixed part, by means of the screw on the contact body 8th is attached, and a resilient part, which, when the spring clip 12 correct to the contact body 8th screwed on, over the upper collar surface 5 enough. The spring clip has in this area a kink of a few degrees, a maximum of about 60 ° and presses on the upper collar surface 5 and thus the federal total on the lower contact surface 10 , This provides a simultaneous positive and non-positive connection in the axial direction, in addition, the compound also acts non-positively in the radial direction, since by the contact pressure in this direction higher frictional forces are overcome to the optical element 1 , which is designed here as a convex-concave lens to move in the radial direction. The jetty 9 each holding group 3 is also carried out under bias, so that the contact surface 11 of the contact body 8th and the radial outer collar surface 7 in contact and the optical element 1 is fixed positively in the radial direction. In this way, the clearance between the cylinder segments of the socket and the lens edge is eliminated.
  • To protect against external influences, the optical element 1 also with the lower contact surface 10 and / or the contact surface 11 of the contact body 8th each holding assembly 3 additionally be adhesively bonded via an adhesive. However, this does not serve the support of the optical element 1 in the version 2 but only as an additional safeguard against extreme temperature or shock loads.
  • It is also advantageous, the materials that make up the socket 2 and the optical element 1 be made to choose so that they have approximately the same thermal coefficient. For example, the optical element 1 be made of quartz and the socket 2 from Invar.
  • The contact body 8th Can be made separately and attached to the bridge 9 be attached, with which he can be connected, for example, by screwing or gluing. In a preferred embodiment, the contact body is also 8th from the basic block from which the socket is made, worked out, so that the socket 2 including contact body 8th and footbridge 9 consists of one piece and the only additional parts needed the spring clip 12 and the set screw 13 are. This greatly reduces the susceptibility of aging-solving compounds to failure, and also uses only a single material, which is more favorable in terms of temperature variations.
  • The adjusting screws 13 can also be completely from the contact body 8th be solved to the spring clips 12 remove so that the optical element 1 out of frame 2 can be taken and replaced, for example.
  • In the 3 and 4 is a similar optical assembly as in 1 and 2 shown only that the optical element 14 here is a Binkonvex lens and the socket 15 in the area of the bridges 9 the retaining assembly 16 has larger recesses, which saves on a material and thus weight and on the other major deflections of the webs 9 in the radial direction to the optical axis allowed.
  • In 6 Finally, a more complex optical element 17 represented with a plane surface and a free-form surface, which also in the previously described versions 2 . 15 can be used. 6a shows a plan view of the optical element 17 , and 6b a longitudinal section along in 6a drawn axis AA. The optical element 17 Here, in plan view also has a rotationally symmetrical about 120 ° rotation with respect to rotations, but this need not necessarily be the case. Also, the collar-shaped formations need not be rotationally symmetrical, if other versions are used. Instead of a circumferential federal - which, however, also forms a possible variant - found on the circumference of the optical element three collar-like formations 18 , each with an upper waistband 19 and a lower waistband 20 analogous to the respective band surfaces of the cylindrical collar and with the same function. Each of the collar-like formations 18 also has an outer waistband 21 on, which is just trained. All three outer band surfaces 21 lie tangentially on a common circle around the symmetry axis S. In 6a corresponds to the intersection of the axis AA with the collar-like elevation 18 on the left side, the point where the tangent touches the circle. This point is ideally in the version 2 . 15 inserted optical element 17 also centered with respect to the contact surface 11 , so that, for example, in a curved contact surface 11 in which the contact with the outer collar surface 21 is essentially limited to a line-shaped area, the point centered in this area, so that the normal vectors point to the symmetry axis S at this point. For a flat contact surface 11 applies accordingly, otherwise tilting could occur.
  • The orthogonal introduction of the forces and the orthogonal bearing ensures that when expansion differences occur, due to different materials or due to temperature gradients within a material - care is taken that the lens does not tilt and the attachment forces remain substantially constant. This ensures a high positional stability and a high tension. The holding forces can be kept low in this way in comparison with such forces as are necessary in the prior art, so that in the optical element 1 only low voltages arise. In addition, the optical assembly is easy to disassemble and the optical element can be removed in a few steps from the socket, which also facilitates repairs in extreme conditions such as in space.
  • LIST OF REFERENCE NUMBERS
  • 1
    optical element
    2
    version
    3
    support assembly
    4
    Federation
    5
    upper waistband
    6
    lower waistband
    7
    radial collar surface
    8th
    Contact body
    9
    web
    10
    lower contact surface
    11
    contact surface
    12
    spring clip
    13
    screw
    14
    optical element
    15
    version
    16
    support assembly
    17
    optical element
    18
    collar-type training
    19
    upper waistband
    20
    lower waistband
    21
    outer waistband
    S
    axis of symmetry
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 1094348 B1 [0003]
    • DE 102004018656 A1 [0004]
    • US 6469844 B1 [0005]
    • US 6400516 B1 [0006]
    • DE 10342269 A1 [0007]
    • DE 102006060088 A1 [0008]

Claims (7)

  1. Optical assembly comprising - an optical element ( 1 . 14 . 17 ) with a perpendicular to an axis of symmetry (S) approximately rotationally symmetrical cross section, - a socket ( 2 . 15 ) for the optical element ( 1 . 14 . 17 ), with at least three on a circle about the symmetry axis (S) in the socket ( 2 . 15 ) arranged holding assemblies ( 3 . 16 ), the optical element ( 1 . 14 . 17 ) in the version ( 2 . 15 ) positively and non-positively fix, - wherein the optical element ( 1 . 14 . 17 ) at its periphery perpendicular to the axis of symmetry (S) has at least one collar-like design, with an upper collar surface ( 5 ) and a spaced lower collar surface ( 6 ), the normal of which lie parallel to the axis of symmetry (S), and with an outer collar surface parallel to the axis of symmetry (S) ( 7 . 21 ), Wherein each retaining assembly ( 3 . 16 ) one with a radially resilient web ( 9 ) firmly connected contact bodies ( 8th ), at which a lower contact surface ( 10 ) with a normal parallel to the axis of symmetry (S) and a parallel to the axis of symmetry (S) aligned bearing surface ( 11 ) is formed, - wherein the optical element ( 1 . 14 . 17 ) with its lower collar surface ( 6 ) on the lower contact surface ( 10 ) and each retaining assembly ( 3 . 16 ) comprises a spring element, which on the upper collar surface ( 6 ) is configured exerting a predetermined contact pressure and the collar-like elevation on the lower contact surface ( 10 ) so that the optical element ( 1 . 14 . 17 ) is positively and positively fixed in the axial direction and positively in the radial direction, - wherein the web ( 9 ) of each holding assembly ( 3 . 16 ) is carried out under bias, so that the contact surface ( 11 ) of the contact body ( 8th ) and the outer collar surface ( 7 . 21 ) and the optical element ( 1 . 14 . 17 ) is fixed positively in the radial direction.
  2. Optical assembly according to claim 1, characterized in that the collar-like formation as a at the periphery of the optical element ( 1 . 14 ) perpendicular to the axis of symmetry (S) circumferential, cylindrical collar ( 4 ) with a cylindrical outer collar surface ( 7 ), wherein the retaining assemblies ( 3 . 16 ) are preferably arranged rotationally symmetrical.
  3. Optical assembly according to claim 1, characterized in that the optical element ( 17 ) one of the number of retaining assemblies ( 3 ) corresponding number of bundles ( 18 ), each with a flat outer collar surface ( 21 ), wherein the outer collar surfaces ( 21 ) are designed to lie tangentially on a common circle about the axis of symmetry (S).
  4. Optical assembly according to one of claims 1 to 3, characterized in that the spring element as on the contact body ( 8th ) bolted spring clip ( 12 ) is configured and the contact pressure by means of a set screw ( 13 ) is variable.
  5. Optical assembly according to one of Claims 1 to 4, characterized in that, for securing against external influences, the optical element ( 1 . 14 . 17 ) with the lower contact surface ( 10 ) and / or the contact surface ( 11 ) of the contact body ( 8th ) of each holding assembly ( 3 . 16 ) is additionally bonded cohesively via an adhesive.
  6. Optical assembly according to one of claims 1 to 5, characterized in that the outer collar surfaces ( 7 . 21 ) at least approximately in the region of the neutral bending fiber of the optical element ( 1 . 14 . 17 ) lie.
  7. Optical assembly according to one of claims 1 to 6, characterized in that the materials from which the socket ( 2 . 15 ) and the optical element ( 1 . 14 ), at least approximately have the same thermal coefficients.
DE102010022934A 2010-06-04 2010-06-04 Optical assembly has optical element with rotational-symmetrical cross-section that is approximately perpendicular to symmetrical axis, where lamp holder is provided for optical element with three holding assemblies Ceased DE102010022934A1 (en)

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DE102010022934A DE102010022934A1 (en) 2010-06-04 2010-06-04 Optical assembly has optical element with rotational-symmetrical cross-section that is approximately perpendicular to symmetrical axis, where lamp holder is provided for optical element with three holding assemblies

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DE102010022934A DE102010022934A1 (en) 2010-06-04 2010-06-04 Optical assembly has optical element with rotational-symmetrical cross-section that is approximately perpendicular to symmetrical axis, where lamp holder is provided for optical element with three holding assemblies

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DE102013110750B3 (en) * 2013-09-27 2014-11-13 Jenoptik Optical Systems Gmbh Optical assembly with a socket with thermally dependent force compensation
US20160041361A1 (en) * 2014-08-06 2016-02-11 Sandia Corporation Mounting apparatus

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