林テレンプ List of Products and Services

The "radial polarization converter," also known as a q-plate (axisymmetric half-wave plate), is a phase difference element. By converting incident light into linear polarization, it can generate radial polarization or azimuthal polarization with a donut-shaped intensity distribution, where linear polarization is distributed within the beam cross-section. On the other hand, when circularly polarized light from a plane wave is incident, it can generate a special type of light with a helical phase, known as an optical vortex. 【Features】 ■ The use of optical alignment materials allows for relatively easy production of central defects. ■ The materials are compatible with automotive specifications, ensuring high reliability. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

Our "polarized flat lens" functions as a lens despite its flat shape. Even with the substrate included, it can contribute to miniaturization and thinning of optical systems with a thickness of less than 1mm. Please feel free to contact us when you need assistance. 【Features】 ■ The flat lens using a light-aligned material is expected to have a higher light utilization efficiency (diffraction efficiency × transmittance) compared to meta lenses using a metasurface approach. ■ By using a light-aligned material, the light-aligned film becomes unnecessary, allowing for a simpler layer structure. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

The "polarization diffraction grating" is a special diffraction grating based on geometric phase (Pancharatnam-Berry phase). It can deflect polarized beams like a prism and separate light, including natural light, into circularly polarized light that rotates in opposite directions in the ±1 order. The optical alignment material can form a polarization diffraction grating without an alignment film. 【Features】 ■ Can be finished to a thickness of less than 1mm, including the glass substrate of the base material. ■ Capable of forming phase difference films on lenses with difficult curvatures for attaching phase difference films to lenses. ■ The optical alignment material has a proven track record in automotive applications, allowing for the production of highly reliable products. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

Our company leverages the strength of light-alignment materials being a coating agent and possesses the technology to form phase difference films on lens curved surfaces. In recent years, pancake optical systems, which are a type of polarized optical system, have become a trend in VR goggles for their effectiveness in reducing thickness. Typically, a 1/4 wavelength film is directly adhered to the lens, but issues can arise from improper adhesion or misalignment, leading to variations in phase difference. On the other hand, our company can create "phase difference lenses" that exhibit uniform phase difference on the lens's curved surface by inducing phase difference after coating. **Features** - Capable of forming phase difference films on lenses with challenging curvatures where adhering phase difference films is difficult. - The light-alignment material has a proven track record in automotive applications, allowing us to produce highly reliable products. *For more details, please download the PDF or feel free to contact us.*

• Other optical parts

By inserting our "polarization cancellation plate" into the optical system, you can overcome the issues and achieve a uniform image. In projectors and other devices, polarization can cause brightness and color unevenness on the screen, primarily in the diagonal direction, as it passes through various optical systems. Depending on the optical system, it can also contribute to the resolution of laser speckle. 【Features】 ■ No dynamic mechanism is required, and compared to conventional polarization cancellation elements, scattering can also be suppressed. ■ Since it uses a light-oriented material, it can be provided as a component that withstands high-temperature environments for automotive applications. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

We would like to introduce the "Patterned Retarder for PCS." By combining a patterned retarder with a phase difference line and slit pattern, created using phase difference patterning technology for optical alignment materials, with a PBS array, it is possible to produce a polarization conversion element that efficiently generates polarized light from natural light. Please feel free to contact us when you need assistance. 【Features】 ■ Unlike conventional film-based products, it has no unevenness and can be directly attached to the PBS array, allowing for the production of a narrower pitch PCS (polarization conversion element) than before. ■ It can be provided as a device that withstands high-temperature environments for automotive applications. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

We would like to introduce the "Phase Difference & Optical Axis Patterning Technology." In the process of generating phase difference using photo-alignment materials, there is a step involving polarized UV irradiation. In this step, by applying or not applying polarization, we can impart a pattern of phase difference. Additionally, by generating patterns of polarization intensity and azimuth through light interference and irradiating accordingly, it is also possible to impart corresponding continuous patterns of phase difference and optical axis. 【Features】 ■ Generally, when patterning using the photo-alignment method, a photo-alignment film is required; however, our photo-alignment material serves the dual role of alignment film and liquid crystal layer with just one component. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

We can provide 1/2 wave plates and 1/4 wave plates used for polarization conversion. Instead of fixed phase differences like 1/2 wave or 1/4 wave, we can set the phase difference according to your preferences. Please feel free to contact us when you need assistance. 【Features】 ■ We can provide wave plates that can be used in high-temperature environments for automotive applications where the use of stretched films is difficult. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

Our company provides "optical compensation plates" optimized for your liquid crystal cells by controlling the three-dimensional refractive index of light alignment materials. In optical configurations using liquid crystal devices such as LCoS, the residual phase difference in the liquid crystal cell can lead to a decrease in image contrast. By utilizing optical compensation plates, the contrast of liquid crystal devices can be improved. 【Features】 ■ We offer optical compensation plates with phase differences, as well as C-plates (positive/negative) that have no phase difference at normal incidence. ■ We have a proven track record of use in automotive applications, and they can also be used in high-temperature environments. *For more details, please download the PDF or feel free to contact us.

• Other optical parts

We would like to introduce our "3D Refractive Index (Birefringence) Control Technology." Optical alignment materials can be coated onto a substrate and can produce phase difference elements through polarized UV irradiation and thermal treatment. By freely distributing the magnitude of the refractive index in the xyz directions, we propose various phase difference elements tailored to our customers' applications. 【Features】 ■ Our strength lies in the ability to control the phase difference in the thickness direction, which is difficult to adjust with stretched film types, allowing for designs that consider angle of incidence dependence. *Even for wavelength plates with a retardation of 200nm or more, some adjustments to the refractive index distribution are possible, so please contact us first.

• Other optical parts

We are developing "phase difference lenses" that utilize the characteristics of our unique materials by applying a phase difference film to glass and resin with lens shapes.

• lens

The automotive industry has been around for nearly a century. Cars have continuously evolved by incorporating cutting-edge technology. In recent years, the demand for comfort, in addition to safety and environmental considerations, has been increasing. Hayashi Telempu, as a total supplier of automotive interior and exterior components, responds to these needs, demonstrates advanced technology, and is committed to creating high-value-added products. We want to provide even more comfort to those who ride in cars. This pursuit is the foundation of Hayashi Telempu and serves as the driving force for moving forward into the future. By leveraging our comprehensive capabilities centered around "advanced technology" and "sensitivity," we will continue to challenge ourselves to create products that embody the next level of comfort. [Business Activities] ■ From marketing to planning, design, engineering, development, and production *For more details, please refer to the related links or feel free to contact us.

• Other Auto Parts

"Light Alignment Material" is a unique material that allows for arbitrary control of phase difference. By applying this product, coating phase difference and miniaturization are possible. We provide optical products tailored to customers, including three-dimensional control of birefringence and phase difference patterning. [Features] ■ Original material ■ Arbitrary control of phase difference ■ Coating enables coating phase difference and miniaturization ■ Providing optical products suited to customers *For more details, please refer to the PDF document or feel free to contact us.

• paint

We offer "optical compensation plates" to improve the contrast of image engines using LCD and LCOS, providing higher quality images. We use our proprietary materials that allow for arbitrary control of phase difference, enabling us to provide suitable optical products tailored to our customers' needs. Please feel free to contact us. 【Examples of optical compensation plate forms】 ■ Inclined n-C plate ■ Biaxial refractive index ellipsoid Nz = 0.5 *For more details, please download the PDF or feel free to contact us.

• Other optical parts
• Interior parts

We offer a "polarization compensation plate" to eliminate brightness and color unevenness caused by polarization issues in projectors and provide higher quality images. We can accommodate small quantities and a variety of customizations, offering suitable optical products tailored to your needs. Please feel free to contact us first. *For more details, please download the PDF or feel free to reach out to us.

• Other optical parts
• Interior parts

We offer a "polarization diffraction grating" that can efficiently diffract circularly polarized light into a single order. Applications for sensing purposes, such as polarization imaging and beam steering for Lidar, are anticipated. Please feel free to contact us for more information. 【Features】 ■ Capable of deflecting circularly polarized light with high diffraction efficiency ■ Only diffracts unpolarized and linearly polarized light into ±1 order (no generation of zeroth or higher order light) *For more details, please download the PDF or feel free to contact us.

• Other optical parts
• Interior parts

Are you facing challenges in observing transparent samples that conventional microscopes could not capture, or subjects that were difficult to see due to light deflection? 【About Our Phase Contrast Patterning】 We convert the phase difference of light into sharp contrast, highlighting details of cells, tissues, and fine structures that are difficult to recognize with the naked eye. ■ No staining required, allowing for real-time observation of live samples ■ Supports discoveries that were previously "invisible" while maintaining the integrity of the sample ■ Light axis directions can be freely set at 45°, -60°, and +60° *For more details, please refer to the PDF document or feel free to contact us.

• Printing/Publishing
• Processing Contract
• Other services

Our company can provide fine "phase difference patterning." The optical axis direction can also be freely set. Examples include 45°, -60°, and +60°. Please feel free to contact us when you need assistance. 【Features】 ■ Capable of providing fine phase difference patterning ■ The optical axis direction can also be freely set *For more details, please refer to the PDF materials or feel free to contact us.

• Printing/Publishing
• Processing Contract
• Other services

The "Radial Polarization Converter" converts linear polarization into radial polarization (cylindrical polarization) or azimuthal polarization (orientational polarization). Radial and azimuthal polarizations increase efficiency in laser processing, making them suitable for micromachining and super-resolution optical microscopy. It is also possible to use them in optical tweezers to enhance optical trapping efficiency. 【Features of Radial and Azimuthal Polarization】 ■ Increases efficiency in laser processing ■ Suitable for super-resolution optical microscopy ■ Can be used in optical tweezers to enhance optical trapping efficiency *For more details, please refer to the PDF document or feel free to contact us.

• converter