Skip to main content

Ultra short throw projector lens/mirror development

Ultra short throw projector lens/mirror development

Ultra short throw projector was designed to bring the solution to issues associated with many existing projectors that;

  • Speaker's shadow projected on the screen distracts audiences.
  • Projector glare blinds a speaker.
  • Throw distance demands a large room.

It was commercialized as the world's first development using free form optics.
It adopts successful combination of our technologies in mold production and molding.

Ultra short throw projector lens/mirror development

The following free form technologies have been co-developed with Maxell, Ltd.

  • Ultra precision free form processing technology
  • Precision multi-cavity molding technology
  • Free form surface measurement evaluation technology
  • Free form mold correction technology
  • Optimal location setting of gate area and runner by resin flow analysis

Free form correction process technology in particular is effective in high-precision, high-cycle molding.

Free form lens insert / mold

Free form lens insert
Free form lens insert

Free form mirror
Free form mirror

Free form lens mold
Free form lens mold

Free form mirror mold
Free form mirror mold

Case study of automotive LED headlamp lens

Case study of automotive LED headlamp lens (PES)

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

Ultra-precision lens insert processing technology

Ultra-precision lens insert processing technology

Artisanal lens insert polishing technology

Artisanal lens insert polishing technology

Automotive lightguide development case study

Lightguide for headlamps
Lightguide for headlamps

Lightguide for tail lamps
Lightguide for tail lamps

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 mold

Light guide

Light guide

Light guide

Fine optical pattern processing technology

Fine optical pattern processing technology

Fine optical pattern processing technology

Artisanal lens insert polishing technology

Artisanal lens insert polishing technology

Artisanal lens insert polishing technology

Optical disc drive object lens, development case study

High level optical design technology

  • DVD/CD compatible: High light use efficiency with aspheric lens form (Maxell's original)
  • Blu-ray: Original aberration control technology

High precision mold processing and molding technology

  • Blu-ray plastic lens Mold and Molding technology

DVD/CD Optical drive

DVD/CD Optical drive

DVD/CD compatible plastic object lens
DVD/CD compatible plastic object lens

Maxell's original aspheric lens form (proprietary)

  • High light use effect
  • High mass-productivity

Plastic object lens for Blue-ray
Plastic object lens for Blue-ray

High NA (0.85)+
Aspheric (Plastic)

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.

Fresnel lens
Fresnel lens

Array lens
Array lens

Composite molded lens
Composite molded 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

Download Adobe Reader
In order to read a PDF file, you need to have Adobe® Reader® installed in your computer.

Equipment list

PDF format, 21 kBytes

Equipment list

Contact us

Go to contact form for inquiries

Contact us

Related Links