Holographic Door Pane Access Control With 3D Face Recognition

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Solution Overview

Problem

Existing radio-based access control systems for vehicles and doors face security vulnerabilities, space constraints, and impracticality in integrating visual recognition technologies, especially when large transparent surfaces like windows are involved, limiting the use of holographic displays and authentication methods.

Innovation Solution

A system incorporating a holographic camera with a transparent base body and stereoscopic image recording capabilities for person-specific authorization control, utilizing stereoscopic imaging and holographic elements to enhance security and integration within transparent surfaces without compromising aesthetics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If face recognition optics are integrated into the door pane, then personal identification is achieved, but space requirements conflict with other components

Engineering Contradiction:
Improvepersonal identification capabilityVSAvoidspace for optics
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent merges the face recognition optical system with the existing transparent door pane structure. The camera and optical components are integrated into the pane assembly, combining the transparency function with the biometric identification function in a single unified structure, thereby eliminating the need for separate dedicated spaces.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The door pane is designed to serve multiple functions simultaneously: it maintains its primary function as a transparent barrier while also housing the face recognition camera and serving as the mounting structure for optical components. This multi-functionality reduces the overall space requirement by eliminating dedicated spaces for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If three-dimensional face recognition is implemented, then deception resistance is improved, but space requirements increase further

Engineering Contradiction:
Improvedeception resistanceVSAvoidspace for 3D optics
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent achieves three-dimensional facial recognition not by adding physical depth to the optical components, but by capturing and processing depth information through computational methods using two-dimensional image sensors. This dimensional transformation allows 3D recognition functionality within the constraints of a flat, space-constrained door pane environment.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The system replaces traditional bulky 3D optical sensors (such as structured light projectors or time-of-flight cameras) with a computationally-driven approach using standard 2D image sensors. By substituting mechanical/optical complexity with computational algorithms, the patent achieves 3D recognition capabilities while minimizing physical space requirements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If holographic display or operating elements are added, then authentication is facilitated, but space requirements narrow further

Engineering Contradiction:
Improveauthentication facilitationVSAvoidspace for display elements
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent combines the holographic display function with the existing transparent pane structure. The display elements are integrated into the pane assembly, merging the information display function with the structural and optical functions of the door pane, thereby avoiding additional space consumption.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The holographic display utilizes thin-film technology that can be integrated into the transparent pane without significantly increasing its thickness or volume. This thin-film approach allows the display to be embedded within the existing pane structure, maintaining space efficiency while enabling enhanced authentication visualization.

Inventive Principle:
Principle #30Flexible shells and thin films

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system provides secure, intuitive, and hygienic authorization control, enabling three-dimensional facial recognition and contactless operation, while maintaining transparency and reducing space requirements.

Implementation Method 1

The holographic camera has at least one recording hologram included in the base body for deflecting light beams from the detection area

Methodology Applied
Scientific EffectLight deflection: Reflection

Data Source

PatentEP4122765B1Holographic access control
Publication Date: 2026.04.08 CARL ZEISS JENA GMBH
  • EP4122765B1 patent drawingFigure 1~2
  • EP4122765B1 patent drawingFigure 3~4
  • EP4122765B1 patent drawingFigure 5~6

AI summary

The invention relates to a system for a functionalized door pane through which person- and/or object-related authorization control can be performed. For person-related control, a holographically based, stereoscopic Holocam, which can be integrated into the pane, can be included. Furthermore, a holographic display, which can also be integrated into the pane, can be included. By appropriate methods, the authorization control can be performed, and a door locking mechanism and a holographic display can be controlled by the control device.