20240045115. OPTICAL CONSTRUCTION INCLUDING LENS FILM AND MULTILAYER MASK simplified abstract (3M INNOVATIVE PROPERTIES COMPANY)

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OPTICAL CONSTRUCTION INCLUDING LENS FILM AND MULTILAYER MASK

Organization Name

3M INNOVATIVE PROPERTIES COMPANY

Inventor(s)

Neeraj Sharma of Lake Elmo MN (US)

Przemyslaw P. Markowicz of Woodbury MN (US)

Daniel J. Schmidt of Woodbury MN (US)

Timothy J. Reddy of Maplewood MN (US)

Mark A. Roehrig of Stillwater MN (US)

OPTICAL CONSTRUCTION INCLUDING LENS FILM AND MULTILAYER MASK - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240045115 titled 'OPTICAL CONSTRUCTION INCLUDING LENS FILM AND MULTILAYER MASK

Simplified Explanation

The abstract describes an optical construction that includes a lens film with microlenses on one surface and a multilayer mask on the other surface. The multilayer mask has a thickness less than half the average focal length of the microlenses and an optical density greater than 2. The mask has laser-ablated openings that align with the microlenses. The optical construction has a specific transmittance peak and width as a function of incident angle.

  • The lens film has microlenses on one surface.
  • The multilayer mask is placed on the other surface of the lens film.
  • The mask has a thickness less than half the average focal length of the microlenses.
  • The mask has an optical density greater than 2.
  • The mask has laser-ablated openings that align with the microlenses.
  • The optical construction has a specific transmittance peak and width as a function of incident angle.

Potential applications of this technology:

  • Optical devices and systems requiring precise control of light transmission.
  • Imaging systems, such as cameras or microscopes, that benefit from enhanced optical performance.
  • Display technologies, such as projectors or augmented reality devices, that require efficient light transmission.

Problems solved by this technology:

  • Improves the optical performance of lens films by reducing unwanted reflections and increasing light transmission.
  • Enables precise control of light transmission, leading to improved image quality and clarity.
  • Enhances the efficiency and performance of optical devices and systems.

Benefits of this technology:

  • Improved image quality and clarity in optical devices and systems.
  • Enhanced light transmission efficiency, leading to brighter and more vibrant displays.
  • Greater control over light transmission, allowing for customized optical effects and improved performance.


Original Abstract Submitted

an optical construction includes a lens film having outermost first and second major surfaces. the first major surface includes a plurality of microlenses. a multilayer mask having an average thickness of less than about 0.5 times an average focal length of the microlenses and an optical density of greater than about 2 is disposed on the second major surface. the multilayer mask includes polymeric first and second mask layers where each of the first and second mask layers has an optical density of greater than about 0.3. the multilayer mask defines a plurality of laser-ablated through openings therein that are aligned to the microlenses in a one-to-one correspondence. an optical transmittance of the optical construction as a function of the incident angle has a transmitted peak having a peak transmittance t1 and a corresponding full width at 20 percent of maximum w1, where t1/w1≥2.4%/degree.

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