IMAGING SYSTEM INCLUDING BEAM GUIDING ELEMENT HAVING HIGH SOLARIZATION RESISTANCE IN THE BLUE SPECTRAL RANGE

    公开(公告)号:US20230090497A1

    公开(公告)日:2023-03-23

    申请号:US17994885

    申请日:2022-11-28

    申请人: Schott AG

    IPC分类号: H04N9/31 H01S3/00

    摘要: An imaging system, includes: a laser light source having a wavelength from 380 nm to 490 nm; and a beam guidance element, the laser light source configured for generating an average surface power density of more than 10 W/cm2, the beam guidance element including a glass which has a quality factor F(436 nm)=S(436 nm)*(Abs0(436 nm)+Abs1(436 nm))/k, wherein S(436 nm) is a thermality at a wavelength of 436 nm, Abs1(436 nm) is an additional absorbance in comparison to Abs0(436 nm) at a wavelength of 436 nm after an irradiation with a power density of 345 W/cm2 for 72 hours with a laser light having a wavelength of 455 nm, Abs0(436 nm) is an absorbance at a wavelength of 436 nm of a sample having a thickness of 100 mm without the irradiation, k is the thermal conductivity, and the quality factor F(436 nm) is

    CLADDING GLASS FOR SOLID-STATE LASERS

    公开(公告)号:US20210028605A1

    公开(公告)日:2021-01-28

    申请号:US16844035

    申请日:2020-04-09

    申请人: SCHOTT AG

    摘要: The present disclosure relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The disclosure also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. Thus, a laser component with improved efficiency is obtained. The present disclosure also relates to a method for producing the laser component.

    DEVICE COMPRISING OPTICAL ELEMENTS OF SELECTED REFRACTIVE INDEX

    公开(公告)号:US20210096376A1

    公开(公告)日:2021-04-01

    申请号:US17035241

    申请日:2020-09-28

    申请人: SCHOTT AG

    IPC分类号: G02B27/01 G06K9/00 G06F3/01

    摘要: The present disclosure relates to a device, in particular an augmented reality device. In particular, the disclosure relates to a device, a kit, a process for making the device, and a process for making a visual impression.
    The present disclosure relates to a device including: a. a grouping of x optical elements, each optical element having a front face and a back face, the x optical elements being arranged in a stack from first to last in which the front face of an optical element faces the back face of the next optical element, and b. a spacer region made of a material having a refractive index below 1.4 for vacuum wavelengths in the range from 400 to 760 nm located between each pair of adjacent optical elements, and: x is an integer at least 3, the grouping of x optical elements comprises a first R-type optical element, a first G-type optical element and a first B-type optical element, R610 is the refractive index of the first R-type optical element for light of vacuum wavelength 610 nm; R760 is the refractive index of the first R-type optical element for light of vacuum wavelength 760 nm; G500 is the refractive index of the first G-type optical element for light of vacuum wavelength 500 nm; G610 is the refractive index of the first G-type optical element for light of vacuum wavelength 610 nm; B400 is the refractive index of the first B-type optical element for light of vacuum wavelength 400 nm; B500 is the refractive index of the first B-type optical element for light of vacuum wavelength 500 nm; n0 is the minimum selected from R760, G610 and B500; δ is the difference between n0 and the maximum selected from R610, G500 and B400; n0 is in the range from 1.55 to 2.50; δ is equal to or less than 0.20.