Lambda Vision LVmicro-Z Differential Photophotometer

Lambda Vision LVmicro-Z Differential Photophotometer

Color filter is a key component for colorizing liquid crystal displays. LCD flat panel display is a non active light-emitting component, and its color display must be provided by an internal backlight module (transmissive LCD) or external ambient light (reflective or semi transmissive LCD) as a light source, combined with a driver IC and liquid crystal control to form grayscale display, and then through the R, G, B color layers of color filters to provide hue to form a color display image.

Lambda Vision LVmicro-Z/1 Visible Differential PhotophotometerIt is mainly designed for use with a 5x objective lens. This series is based on measuring with a 5x objective lens (15 µ m/30 µ m spot size). LVmicro-Z/1Microscopic spectrophotometerNot equipped with autofocus function (only manual autofocus). LVmicro-Z/2 is based on 20x/50x objective lenses and can measure spot sizes of 2 µ m or more. Compared with LVmicro-Z/1, LVmicro-Z/2 has higher rigidity and seismic resistance, and can achieve stable small point measurement.

Optional function/This device is used to measure reflectivity. Like transmittance, it is composed of a straight pinhole optical system.
Optional function/OBJ: This device is used for diffuse reflectance measurement. It is used for measuring diffuse reflectance colorimetry in small areas such as printed materials.

Lambda Vision LVmicro-Z Differential Photophotometerfeature
1. It can measure a small area of 2 μ m. If it is a small area, a high-precision isolation table may be needed as the measurement environment. 2. Only illuminate the observation area with light and do not generate data from other areas. Other areas do not generate data (small holes on the measurement line).
3. Auto focus (LVmicro-Z/2) reduces individual errors to a significant levellow， The vertical movement of the Z-axis sample is automatic.

4. Equipped with a USB camera for image observation, which can store images. Also used for autofocus
5. The pointer light shines on the observation area, so it is easy to see the measured position
In addition to the pointer light mentioned above, there is also a regular lighting fixture (white LED) that observes the entire sample image and automatically turns off during spectral measurement.
7. The spectral light source adopts high-precision stable halogen lamps and stable power supplies.
8. Sample tables of 6 inches, 8 inches, and 14 inches can be provided (manual), and an automatic loading table can be optionally installed
9. The spectral detection part adopts a high-sensitivity CCD, which can achieve stable measurement even under weak signals in small areas
10. For users currently using spectral instruments from other manufacturers to collect data, data matching and calibration functions can be provided
11. Through various control functions, the control range can be set according to chromaticity, transmittance, etc., to determine whether the product is qualified

12. By selecting a microscope or spectrometer detector and using an XY sample stage, spectra in the near ultraviolet, visible, and near-infrared regions can be measured
Spectral Transmission Spectroscopy (Standard Function)
Optical density (OD value) (standard function)
Spectral reflectance spectrum (when equipped with the optional R reflectance unit function)
Spectral diffuse reflectance spectroscopy (optional OBJ reflection unit)

Lambda Vision LVmicro-Z Differential PhotophotometerSpecifications:

Wavelength range: 380nm~780nm (400nm~700nm can be set, other wavelength ranges are optional)

Measurement parameters: transmittance, reflectance (optional)Chromaticity value calculation (X, Y, Z, x, y, L *, a *, b *, Δ Eab, white balance, NTSC value).

Spectral measurement method: high-speed division using gratings and line sensorslight

Wavelength accuracy: ± 0.5nm

Lighting method: August K ö hler light source illuminationlaw

Light source: halogen lamp, with a service life of about 2000hr

Measurement aperture: as small as 2 μ m

Lambda Vision LVmicro-Z Differential PhotophotometerApplication:

Chromaticity measurement, film thickness, ITO film thickness, and OVER COAT protective layer film thickness of color filters on display panels.

Lambda Vision LVmicro-Z Differential Photophotometer