Turntable Light Collection Spindle Illumination Design

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Solution Overview

Problem

Conventional turntables with light transmission round platters and transparent spindles suffer from dark spot areas due to ineffective light concentration, leading to inaccuracies in 360-degree and 3D photography, and issues with slip and rotation errors during image capture.

Innovation Solution

A light collection spindle with a frosted surface is used to collect incident light from the bottom or lateral side and guide it through a smooth, transparent portion to illuminate the dark conjunctive area between the light transmission round platter and the spindle, preventing dark spots and ensuring precise rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a transparent spindle is used to connect the light transmission round platter, then the structural transparency is improved, but dark spot areas appear due to ineffective light concentration

Engineering Contradiction:

Improvelight transmissionVSAvoiddark spot areas

Core Design Contradiction:

Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The spindle surface is divided into different regions with different properties: a frosted light collection area and a smooth light guiding area. This local differentiation allows the spindle to simultaneously collect light effectively and guide it to illuminate the conjunctive area, resolving the dark spot problem while maintaining overall transparency.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The surface treatment of the spindle is changed from uniformly smooth to having frosted portions. This parameter change in surface roughness enables the spindle to collect and concentrate light from the bottom or lateral side, transforming it into an effective light guiding structure that eliminates dark spots.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If rubber rings or rubber rollers are used to drive the light transmission round platter, then the driving mechanism is simplified, but slip and rotation errors occur during image capture

Engineering Contradiction:

Improvedriving mechanismVSAvoidrotation accuracy

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The friction-based mechanical driving system (rubber rings/rollers) is replaced with a magnetic field-based driving system. The magnetic field exerts force on the metallic rim of the platter without physical contact, eliminating slip and rotation errors while maintaining a relatively simple driving mechanism structure.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Device complexity

If the conjunctive area between the light transmission round platter and the spindle is left unilluminated, then the structural simplicity is maintained, but dark spots appear in generated images

Engineering Contradiction:

Improvelighting structureVSAvoiddark spots in images

Core Design Contradiction:

Device complexityVSObject-affected harmful factors

Solution Approach 1:

The spindle itself is transformed into a light guiding intermediary. By treating part of its surface as a light guiding area, the spindle mediates the transfer of light from the light source to the conjunctive area, illuminating previously dark regions without adding separate lighting components.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This solution effectively eliminates dark spot areas in images and ensures accurate, slip-free rotation, enhancing the quality of 2D and 3D photography with pure-white-background or automatic background removal.

Implementation Method 1

a frosted portion of the surface of the light collection spindle... incident light from the bottom or lateral side may be collected by a frosted portion of the surface of the light collection spindle

Methodology Applied

Scientific EffectLight scattering: Scattering

Implementation Method 2

travel through the original smooth and transparent portion of the surface of the light collection spindle which is functioned as a light guiding area

Methodology Applied

Scientific EffectTotal internal reflection: Total Internal Reflection

Data Source

PatentUS9822920B2Turntable with light transmission round platter and light collection spindle

Publication Date: 2017.11.21 ORTERY TECH

AI summary

A turntable with a light transmission round platter and at least one light collection spindle is provided. The light transmission round platter connects to the light collection spindle, and the light collection spindle is driven by a motor to rotate the light transmission round platter. A portion of surface of the light collection spindle is frosted. The incident light from a bottom or a lateral side is collected in a light collection area of the spindle and then transmitted toward a conjunctive area of the light transmission round platter via a transparent and smooth light guiding area, so as to lighten the originally dark conjunctive area and reduce the darkness thereof. Accordingly, the time spent in background removal of the dark conjunctive area can be reduced since the conjunctive area is lighted when the light transmission round platter is rotated for photographing an object to be photographed thereon.