Non-Electric Lighting TRIZ Cases

Segmenting the parabolic reflector into individual portions for each LED achieves uniform illuminance in narrow beam spotlights.

A luminaire employs a flexible textile cover over a plate-shaped light guide to harmonize directed and diffuse light outputs without protrusions.

A lamp uses segmented reflective optical extraction structures on a lightguide back surface to emit well-defined, polarized light.

A vehicle headlamp apparatus uses a rotatable shielding part to redirect light from a single LED source, eliminating separate upper and lower lighting units.

Pressing sleeve compresses frame against upper cover to secure crystal slabs, preventing looseness and slab fall during installation.

A recessed light beam reduction section on a projection headlight screen diverts stray light away from the main beam axis.

Extending the window into a three-dimensional configuration with rearward sidewalls improves edge irradiance uniformity without increasing device complexity.

A vehicle door warning lamp uses separate white and colored shades to illuminate the passenger path and alert rear traffic simultaneously.

A coupling lens with anisotropic focal properties directs laser light from solid-state emitters to improve optical collection.

An interim lens refracts LED light at an angle within a streamlined vehicle lamp housing, maintaining a low profile while preventing drag and heat buildup.

A curved backlight unit manages light leakage by varying grating element heights and using light blocking members to ensure uniform brightness.

Shielding means adjust the amount of light reaching a luminescent material, eliminating expensive LED binning and surplus components.

Pivotable frames covered in stretched canvas adjust light distribution, resolving the trade-off between harsh diffusion and conventional aesthetic appearance.

Segmented suction fan cage prevents insect fouling, reducing acoustic noise while maintaining high collection efficiency.

Infrared sensors measure obstacle temperature to trigger low lighting and video recording, resolving poor visibility of obstacles in low light conditions.

A heat shrink layer conforms to a 3D printed object to provide optical effects like reflection and diffusion.

A foldable soft box umbrella tray uses a rotating disc body connected to an annular base via a switching mechanism.

An LED lens uses an angled indentation to redirect light through total internal reflection, eliminating bright spots and achieving uniform distribution.