4 layers53.1 × 98 mm
4 layers72.7 × 100 mm
Illuminator
VIPQualityPost/polarizer-illuminator315W USB PD powered microscope illuminator with electrically controlled liquid crystal polarizer for removing specular reflections.
- Size
- 72.7 × 100 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 66
- Nets
- 73
- Pads
- 258
- Tracks, vias
- 384, 81
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 20 Mar 2024
- Updated
- 28 Apr 2024
Overview
Illuminator is an open-source printed circuit board by VIPQualityPost, from the VIPQualityPost/polarizer-illuminator repository on GitHub. It is a 4-layer board of 72.7 × 100 mm with 66 parts on 73 nets, routed with 384 tracks and 81 vias.
It is built around the TL072, 78L05G-AB3-R and SRV05-4, with the WAS3157B-6/TR, DMP3028LK3 and MMBT3904 among its other parts. Its parts include 18 diodes, 17 capacitors, 14 resistors, 6 ICs and 3 connectors. It belongs with the power boards and the STM32 boards of this library.
Main components
6
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
78L05G-AB3-R
SOT-89-3-40℃~+85℃ 1 1.7V@(40mA) 100mA 2mA 30V 40uV 5V 80dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal Shutdown Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUTCVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SRV05-4
SOT-23-6L-55℃~+150℃ 15V 1pF 4A 5V 5uA 6V 80W ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT-23-6L ESD and Surge Protection (TVS/ESD) ROHShongjiachengESD And Surge Protection (TVS/ESD)
WAS3157B-6/TR
SOT-363-40℃~+85℃ 1 18.5pF 2.3V~5.5V 2:1 300ps 400MHz 5.5Ω 50ns 80ns SOT-363 Analog Switches, Multiplexers ROHSWILLSEMIAnalog Switches, Multiplexers
DMP3028LK3
TO-252-55℃~+150℃ 1 P-Channel 1.241nF 1.6W 110pF 1V 22nC@10V 25mΩ@10V 27A 30V TO-252 MOSFETs ROHSDiodes IncorporatedMOSFETs
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.md
Polarizer-Illuminator
A microscope illuminator that includes a liquid crystal display as a tunable polarizer. By polarizing the illuminator light, the reflected light can be filtered through a second polarizer (in this case the LCD) with specular reflections and glare removed, depending on the amount of polarization applied (based on bias across LCD). The illuminator is powered over USB PD and can be controlled via a PC for automated control in conjunctions with motorized XY stages and microscope camera. Firmware can be updated over same cable providing power thanks to DFU bootloader, just hold the button on the back and plug into a PC.
| Non-polarized image | Polarized image |
|---|---|
 |  |
Parts
66| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | LED | LED_SMD:LED_PLCC_2835 | D201, D202, D203, D204, D205, D206, D213, D214, D215, D216, D217, D218, D225, D226, D227, D228 +2 |
| 11 | 100n | Capacitor_SMD:C_0402_1005Metric | C102, C103, C104, C105, C108, C110, C111, C112, C113, C116, C117 |
| 6 | 75R | Resistor_SMD:R_0805_2012Metric | R203, R204, R205, R206, R207, R208 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric | R101, R102, R106, R201 |
| 4 | 10u | Capacitor_SMD:C_0805_2012Metric | C101, C109, C114, C115 |
| 2 | 0R | Resistor_SMD:R_0402_1005Metric | R104, R105 |
| 2 | 10k | easyeda2kicad:RES-TH_RK09K1110A0J | RV101, RV102 |
| 2 | 20p | Capacitor_SMD:C_0402_1005Metric | C106, C107 |
| 1 | 100k | Resistor_SMD:R_0402_1005Metric | R103 |
| 1 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y101 |
| 1 | 5k1 | Resistor_SMD:R_0402_1005Metric | R202 |
| 1 | 78L05G-AB3-R | Package_TO_SOT_SMD:SOT-89-3 | U106 |
| 1 | DFU | easyeda2kicad:KEY-TH_SKHHLWA010 | SW102 |
| 1 | DMP3028 | matei:DMP3028-UDFN2020 | Q201 |
| 1 | HRO_TYPE_C_31_M_12 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J101 |
| 1 | HT7550-1_C16106 | Package_TO_SOT_SMD:SOT-89-3 | U105 |
| 1 | LCLV | TestPoint:TestPoint_2Pads_Pitch5.08mm_Drill1.3mm | J103 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q202 |
| 1 | PCB | matei:illuminator-monobody | H101 |
| 1 | PROG | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J102 |
| 1 | RESET | Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_Vertical | SW101 |
| 1 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U101 |
| 1 | STM32G431CBUx | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U102 |
| 1 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U104 |
| 1 | WAS3157B-6/TR | easyeda2kicad:SOT-363_L2.0-W1.3-P0.65-LS2.1-BL | U103 |
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Questions
How big is the Illuminator PCB?
It measures 72.7 × 100 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Illuminator use?
66 parts, built around the TL072, 78L05G-AB3-R, SRV05-4 and WAS3157B-6/TR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Illuminator KiCad files?
From the VIPQualityPost/polarizer-illuminator repository on GitHub, at the commit this page was made from: the board is hardware/illuminator.kicad_pcb and its schematic hardware/illuminator.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Illuminator design in my own project?
Its repository states no licence, so its author keeps all rights: ask VIPQualityPost before reusing the design.