• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An optical assembly comprises an elongate hollow body (11) of triangular cross-section, having three deformable side walls which adjoin each other and at least one optical element (1). Inside the body the optical element is secured without play to each of the side walls at a well-defined location and in a well-defined position by rigid local connections (15).
    公开号:SU1701120A3
    申请号:SU874203774
    申请日:1987-12-04
    公开日:1991-12-23
    发明作者:Матиас Мари Кессельс Хенрикус；Иоханнес Спан Францис
    申请人:Н.В.Филипс Глоэлампенфабрикен (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to optical instrumentation and can be used in optical systems in which positional accuracy of the order of a few tenths of a micron and angular accuracy from 10 to rad is required. Such systems are used, for example, in optical disk players, for example, in laser video recorders or compact disk recorders, using such optical elements as, for example, lenses and semiconductor lasers.
    The purpose of the invention is to increase mechanical stability and positional accuracy.
    FIG. 1 shows the construction of the proposed optical device, a longitudinal section; in fig. 2 is a view A-A in FIG. one; in fig. 3 is a perspective view of another example of the construction of the proposed optical device; Fig 4 is a perspective view of the proposed optical design,
    The design (Figs. 1 and 2) contains optical elements consisting of optical lenses 1 and a laser device 2.
    The laser device 2 comprises a diode laser 3, a heat sink 4 and a base plate 5 with a cylindrical wall part. The laser device 2, having an optical axis 2a, and the lenses 1 have the same outer diameter, and they are fixed at a special distance in a predetermined position relative to each other by means of a thin-walled steel tube 6 of triangular cross-section, due to which the tube 6 has high torsional rigidity, and the thin lateral The walls 6a, 6b and 6c of the tube can act more or less like leaf springs, allowing for transverse directional deformation of the side walls. During the manufacture of an optical device, such a deformability can be used for the relative installation of optical elements. Preferably tube
    sl C
    -h oh
    about
    Gj
    6 Have an inscribed circle, the diameter of which slightly exceeds the outer diameter of the optical elements.
    In the construction shown in FIG. 1 and 2, the lenses 1 are fixed in the tube 6 at three points, and between the lenses 1 and the side walls 6a, 6b and 6c at the points of contact 7a. 7b and 7c caused a small amount of glue 8, which is able to harden under the action of ultraviolet light. Laser device 2 is attached to each side wall of the base plate, 6b and 6c by laser welding 9, and only one weld is shown in the figures.
    Measurements have shown that in an optical device manufactured as described, the thermal instability of the optical device is less than 0.03 mrad in the temperature range of 20 ° - 60 ° C. In this example, the optical device is provided with a sleeve 10 for mechanically and chemically protecting the lenses 1 and the laser 3. The sleeve 10 is provided with a transparent window 10a.
    The device shown in FIG. 3, comprises two optical elements, which are two lenses 11 and 12 of different diameters located on the same optical axis, and a thin-walled body 13 of a prismatic shape. The housing 13 has three connecting side walls 13a, 13b and 13c to which lenses 11 and 12 are attached with a small amount of glue 14.
    In this design, the mutual radial position of the optical elements is not affected or does not significantly affect the change in the temperature of the device or in its environment, thus. during operation of the device, the orientation of the optical axis does not change at all or significantly. If strict requirements are placed on the installation of optical elements relative to each other, then the possible axial displacement of the optical elements relative to each other under the influence of temperature changes can be reduced by an appropriate choice of the expansion coefficients of the optical elements and the thin-walled part, if used together with refractive indices. materials of optical elements. Last mentioned remedy
    provides a high degree of overall thermal stability of the device in accordance with the invention.
    The optical design shown in FIG. 4, contains two optical devices 15 and 16, in which the optical elements are fixed, as shown in the previous figures. The optical device 15 includes a triangular tube 17, a lens 18, a semiconductor laser 19 and a translucent mirror 20. The optical device 16 contains a triangular tube 21 and a detector 22. Both optical devices 15 and 16 are rigidly connected to each other, and to increase the rigidity
    plate 23 is used. In order for the devices 15 and 16 to interact optically, the optical device 15 is provided with a window 24 which is located in the side wall 17a facing the device 16. The invention is not limited to the structures shown.
    权利要求:
    Claims (2)
    [1]
    1. A device for fixing optical elements containing a retaining
    Means and at least one optical element, characterized in that, in order to increase mechanical stability and positioning accuracy, the holding means is made in the form of an elongated hollow body with deformable walls, having an equilateral triangle shape in cross section, the optical element
    rigidly attached to each of the side walls of the housing through a point contact.
    [2]
    2. Device pop. 1, characterized by the fact that in the case of a triangular cross section
    similar to the first optical element, the second optical element is fixed, similar to the first optical element
    F/
    Th / e2
    and
    / j
    /Behind
    W
    / tfg
    dfe / sJ
    /five

    / 7,
    / 7
    Th / e4
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP0274153B1|1992-11-04|
    DE3782491D1|1992-12-10|
    KR880008050A|1988-08-30|
    EP0274153A1|1988-07-13|
    US4776670A|1988-10-11|
    NL8603109A|1988-07-01|
    JPS63155111A|1988-06-28|
    DD264771A5|1989-02-08|
    HK70694A|1994-07-29|
    DE3782491T2|1993-05-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB191201919A|1912-01-24|1912-06-27|Houghtons Ltd|Improvements in Photographic Screen Holders.|
    US1987058A|1934-04-10|1935-01-08|Eastman Kodak Co|Filter holder|
    BE483365A|1947-08-01|
    GB906278A|1959-09-05|1962-09-19|Hensoldt & Soehne Optik|Lens mount|
    JPS5649069B2|1976-03-05|1981-11-19|
    GB1556476A|1976-10-07|1979-11-28|Standard Telephones Cables Ltd|Fibre connector|
    JPS6041921B2|1978-02-23|1985-09-19|Mitsuma Kk|
    JPH041532Y2|1985-03-19|1992-01-20|US5481385A|1993-07-01|1996-01-02|Alliedsignal Inc.|Direct view display device with array of tapered waveguide on viewer side|
    US5521726A|1994-08-26|1996-05-28|Alliedsignal Inc.|Polarizer with an array of tapered waveguides|
    US5657408A|1994-12-23|1997-08-12|Alliedsignal Inc.|Optical device comprising a plurality of units having at least two geometrically-differentiated tapered optical waveguides therein|
    US6821724B1|1998-09-17|2004-11-23|Affymetrix, Inc.|Methods of genetic analysis using nucleic acid arrays|
    CA2519959A1|2003-03-25|2004-10-14|Precision Optics Corporation, Inc.|Optical device with lens positioning and method of making the same|
    US9684148B2|2014-05-29|2017-06-20|Raytheon Company|Primary mirror mount assembly and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL8603109A|NL8603109A|1986-12-08|1986-12-08|OPTICAL COMPOSITION.|
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