Grayscale film

Grayscale film is a precision optical film with continuous grayscale control capability,mainly used in optical calibration,exposure control,imaging testing and high-end pattern transfer scenarios.

Common Specifications(Support professional customization)

Working Principle of Grayscale Film

1. Grayscale Implementation Methods

There are two main technical paths:

Density Modulation(OD Control):By controlling the optical density of the material,different intensities of light are transmitted through different areas to achieve continuous or graded grayscale.

Area Modulation(Halftone):Simulate grayscale effects by using tiny dot matrices of different sizes or densities(similar to printing dots)through the"number of dots".

2. Light Energy Distribution Control

During exposure or photolithography processes,different grayscale areas correspond to different light energies:high light transmission area→high exposure energy,

low light transmission area→low exposure energy.This can form structures of different depths or heights on photoresist,photosensitive materials or other media.

3. Grayscale to 3D Structure Conversion

This is one of the most important capabilities of grayscale film:

Through a single exposure,multi-height structures(3D contours),continuous slopes(gradient structures),microlenses or curved structures can be realized without multiple alignment exposures.

Dongguan Dafan Optical Technology Co., Ltd.(DFOPTIX) was founded in 2018, its headquarters located in Dongguan City, Guangdong Province, China. DFOPIX is a system-level calibration solutions service provider with engineering culture as its cornerstone and technological innovation as its core.

Currently, DFOPTIX has nearly 150 employees, with R&D personnel consistently accounting for over 30% of the workforce each year — a professional team combining deep engineering expertise with sustained innovation capability.

DFOPTIX has established an advanced R&D and manufacturing base spanning nearly 20,000 square meters, equipped with high-standard precision workshops such as class-100 lithography workshop and class-1000 vacuum lamination workshop, as well as various well-equipped professional laboratories. It has also introduced internationally advanced manufacturing and testing equipment, systematically establishing an industry-leading R&D and manufacturing system.

DFOPTIX specializes in the R&D and manufacturing of a full category of calibration products — including integrated light-source calibration targets and LiDAR calibration boards, while also providing customized calibration product services tailored to customers’ requirements. To date, our company's products and solutions have been widely deployed across sectors including medical, semiconductor, robotics, consumer electronics, intelligent vehicles, aerospace, 3D scanning, and industrial automation. DFOPTIX has served over 3,000 clients, including several Fortune 500 companies.