Case Studies

Case study of automotive LED headlamp lens

Case study of automotive LED headlamp lens
Automotive headlamps in general have a challenge of long molding cycle due to the thickness. We launched a development project in 2003, and achieved high cycle molding taking full advantages of our technologies in freeform correction and precision multi-cavity molding.
  • Short-term development achieved by analysis of design deviation influence on photometry using independently-developed photometry simulator.
  • High-quality and high-precision molds developed with our ultra-precision lens insert processing technology and artisan skill of polishing.
  • High performance in multi-cavity realized with our unique molds and technical know-how acquired with over 30 years of experience in lens manufacturing.
  • High cycle molding of thick lenses accomplished with stable molding, free form evaluation and correction technologies.
Independently-developed photometry simulator.
Independently-developed photometry simulator.
Automotive LED headlamp mold insert and lens
Automotive LED headlamp mold insert and lens
 
Automotive LED headlamp mold insert and lens

Automotive lightguide development case study

LED has been increasingly adopted as a light source in many automotive headlamps and tail lamps for their advantages such as designability and visibility with the DRL (Daytime Running Light) function.
This light guide has fine optical patterns on a pipe surface which produces surface-emitting by a single light source. We made the first mold in the country that achieved mass-production adopting the precision fine processing technology to satisfy following demands;
  • Surface roughness by machining less than Ra100nm*. No variation in the entire pipe. (* 100nm=0.0001mm)
  • Keep minimum radius for fine optical patterns to increase luminous efficiency.
Light guide mold
Light guide mold
Light guide
Light guide
Fine optical pattern processing technology
Fine optical pattern processing technology

Thermal resistance reflowable lens case study

Thermal resistance reflowable lens (for LED and compact cameras use)
(Similar to thermal plasticity resin lens)
Characteristic and advantages
  • Resin: Silicon (hard, soft), epoxy
  • Capable with reflow (-300℃)
  • High resistance to ultraviolet light
  • Fine structure (Fresnel / diffuse structure) formable for optical performance improvement (light focus / diffusion)
  • Applicable to other plastic materials (acrylic, polyolefin, etc.) and glass-mold lens.
We support from optical design to
  • Spheric/Aspheric lens
  • Free form lens
  • Ellipse lens
  • Fresnel lens
  • Composite molded lens with plastic components
  • Array lens
Fresnel lens
Fresnel lens
Array lens
Array lens
Composite molded lens
Composite molded lens

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