The color observed through the microscope does not match the color of the camera image.

When the colors observed through the microscope do not match the colors in the camera image, white balance correction is necessary. However, sometimes the correction using the One Push button may not produce satisfactory results, especially when the light source of the microscope has a tint of orange or yellow.

This discrepancy occurs because the One Push button attempts to correct the color temperature of the light source to white, sometimes excessively. In such cases, manual correction is required to adjust the colors accurately.

 

Please follow the steps below to adjust the colors:

 

1) Reset all settings of the camera to default.

2) Set up the microscope with only the light source or a prepared slide without any specimen. Adjust the brightness on the microscope to ensure it’s not overexposed.

3) Click the One Push button in the camera properties. This will make the camera image appear white.

4) Manually adjust the Red/Blue/Green values in the camera properties to match the colors observed through the microscope as closely as possible.

Is it feasible to capture images at a rate of 6 frames per second with an external trigger (a 6Hz pulse signal) on a USB 3.0 1.3-megapixel monochrome camera?

Utilizing an external trigger to capture 6 frames per second with the DN3R-500BU, a USB 3.0 monochrome camera with a resolution of 5 megapixels, poses no issues whatsoever. Our USB 2.0 and USB 3.0 cameras share common trigger/strobe specifications. Please refer to the documentation and the FAQ below for assistance when using an external trigger.

 

The voltage specification for the external trigger is 3.3V to 24V, with many customers typically using 5V. Please ensure that the input pulse width is set to 5.1μs or greater.

 

The delay for the external trigger, referring to the time between the camera receiving the trigger and the start of exposure, is typically in the range of a few microseconds (μs). If intentional delay is desired, it can be achieved by setting the Trigger Delay using the SDK.

 

When viewing the camera from the rear, Pin1 is located on the left side, and Pin8 on the right side. Please refer to the attached manual for details. When connecting the short wire included with the camera, it will be connected as follows: Pin1 (white, black, red, orange, yellow, black, white, black) to Pin8. For using an external trigger, utilize Pin1 and Pin2.

The dynamic range supported by a USB 3.0 monochrome camera with a resolution of 2 million pixels varies depending on the model.

The term “dynamic range” refers to the value representing the range of white to black that a single pixel can express. In the case of 8 bits, there are 256 levels, allowing a single pixel to express 256 shades of gray. With 12 bits, a single pixel can represent 4096 levels, enabling finer gray-scale representation, albeit with increased data volume. The dynamic range depends on the specifications of the image sensor being used, rather than the software or PC.

Now, the USB 3.0 2-megapixel monochrome camera (DN3RG-200BU) defaults to sending 8-bit data. Therefore, the 47fps listed on the HP website pertains to the fps at 8 bits. For the DN3RG-200BU, both 8-bit (default) and 10-bit (transferred as 16-bit) modes achieve 47fps.

Dynamic range varies depending on the model. The mention of transferring as 16-bit is due to the necessity of transferring images in either 8-bit or 16-bit format, where, despite technically having a 10-bit dynamic range, 6 bits are allocated to color, effectively resulting in a practical dynamic range of 10 bits.

 

The cameras operating in either 8-bit or 10-bit mode include:

– DN3G-30BU (USB3.0, 300,000-pixel monochrome)
– DN3RG-130BU (USB3.0, 1.3-megapixel monochrome)
– DN3RG-200BU (USB3.0, 2-megapixel monochrome)

The cameras operating in either 8-bit or 12-bit mode include:

– DN3R-500BU (USB3.0, 5-megapixel monochrome)
– DN3R-1000BU (USB3.0, 10-megapixel monochrome)

All USB2.0 cameras operate solely in 8-bit mode.

What is the method for distinguishing whether a frame is a GoodFrame or a BadFrame in a callback?

The determination is made based on the lBufferSize parameter passed to the callback function.

 

long CALLBACK CallbackFunc(BYTE * pBuffer, long lBufferSize,PVOID pContext )

 

When lBufferSize == 0, it indicates a BadFrame.

When lBufferSize != 0, it indicates a GoodFrame.

 

Judgment should not rely on pBuffer.

 

pBuffer == NULL signifies that memory for the frame is not allocated. While it will not be NULL during a GoodFrame, its value during a BadFrame is indeterminate.

 

To ensure that the callback is invoked even during BadFrame occurrences, the following code must be executed at the appropriate initialization stage:

 

ICubeSDK_SetCamParameter( n, REG_CALLBACK_BR_FRAMES, ON );  //n is Camera code

 

The ON parameter in the last argument enables invoking the callback during BadFrame occurrences. When set to OFF, the callback is only triggered during GoodFrame occurrences.

how you can use a DN camera with LabVIEW

When using our DN series camera with LabView, it is necessary to utilize NI-IMAQ. If you do not have NI-IMAQ available, we kindly request that you acquire it.

Furthermore, it is necessary to switch the camera to 3Vision mode. Please note that when provided by us, it is delivered in SDK mode.

Please refer to the following steps for switching modes.

 

 

What is ISO sensitivity ?

  1. What is ISO sensitivity ?

ISO sensitivity refers to the term used in the era of film cameras, where sensitivity was adjusted by changing the film. For example, if one wanted to increase shutter speed but lower sensitivity, they would switch to a film with a higher ISO sensitivity.

 

2.   

 

Even though film cameras are no longer prevalent, some digital cameras, such as compact digital cameras and digital single-lens reflex cameras, continue to offer ISO sensitivity settings. This is due to the background belief that for users accustomed to ISO sensitivity, expressing sensitivity settings in ISO values would be more intuitive and understandable.

 

3.  

 

However, in today’s industrial cameras, there are few that utilize ISO notation for sensitivity settings. Our company’s cameras also do not allow sensitivity settings in ISO notation.

While ISO sensitivity is not available, there are several methods to adjust brightness.

 

4. 

Brightness in industrial cameras is adjusted using the following methods, although not through ISO sensitivity:

– Changing the aperture of the lens (generally, larger aperture means brighter)
– Adjusting the aperture of the lens
– Adjusting with lighting (using lighting fixtures to adjust brightness, applying strong strobe light to increase brightness, etc.)
– Adjusting exposure time of the camera (increasing it makes the image brighter)
– Adjusting gain (increasing it makes the image brighter)

Note: Increasing gain too much deteriorates the signal-to-noise ratio, making grainy noise more prominent.

For April 2024 HOLIDAY NOTICE

Dear Valued Customers, Business Associates, and Partners,

Shodensha Vietnam is pleased to announce our schedule of April holiday 2024 as follow:

– Hung King Commemoration Day on April 17, 2024 (1 day)

– Liberation Day & May Day from Monday, 29th April 2024 to Wednesday, 1 May 2024

– Business operation will resume as normal on 2th May 2024(Thursday).

 Wishing you and your family a happy holiday.

HOW TO ATTACH A SMALL S-MOUNT LENS TO A C-MOUNT/CS-MOUNT CAMERA?

Due to space constraints, it may be necessary to configure the camera and lens in a compact manner.

In such cases, compactness can be achieved by choosing an S-mount lens that is smaller than a C-mount or CS-mount lens.

 

Sマウント Cマウント

 

In order to use S-mount lenses, you need to attach a conversion adapter to the camera.

 

Sマウント Cマウント

 

However, there is a caveat.

With S-mount lenses, the focus is adjusted depending on how well it is inserted into the camera.

Cameras usually have an infrared cut filter or a protective filter in front of the sensor.

In some cameras, the distance between the filter and the lens mount is close, and the lens may interfere with the filter when focusing, resulting in a lack of focus.

 

 

 

It is necessary to actually try and check whether the S-mount lens can be attached and used with the camera.

 

ADVANTAGES AND DISADVANTAGES OF MICROSCOPE USB

The microscope connects to the computer using a USB cable and displays an enlarged image on the screen.

The advantage is that it can be viewed with a computer and the image can be saved simply. Furthermore,  using the software, you can perform a variety of tasks including image processing such as measurement, focus synthesis, and binarization.

 

Furthermore, most of the cameras used in our microscopes USB are Directshow compatible cameras, so you can also use Directshow compatible software from other companies.

 

The downside is there

The downside is that there are some errors due to USB specifications and the display speed becomes slower corresponding to the resolution of the camera used.

Microscope

We recommend microscope USB3.0 for USB type because the disadvantages of microscope USB3.0 have been significantly reduced compared to USB2.0.

 

At our company, there are many types of microscopes USB available.

 

USBマイクロスコープ Microscopes USB(CMOS)
TG500CS
   
USBマイクロスコープ

3 million pixel  microscope USB(CMOS)

TG300PC2 (out of stock)

 

※We also have microscopes with higher and lower magnifications. You can also choose the camera resolution, so please contact technical support for details.

FIXTURE USING TRIPLE HOLE (1/4 INCH SCREW)

The tripod hole is used for relatively many purposes other than cameras.

The strobe lighting shown below has a tripod hole.

 

三脚穴 三脚穴
   

 

In addition, we will introduce fixing devices that use a tripod hole.

カメラの三脚には固定

■A flexible arm (bellows) type fixture that can be clipped onto the edge of a desk.
フレキシブルアーム(蛇腹)タイプの固定具

 

変わった固定具 変わった固定具
   

 

■This is our edge fixed stand with a 3D arm.

 

3Dアーム付きエッジ固定スタンド

 

It can also be installed on our Easy Arm.

 

イージーアーム イージーアーム
It is an arm with three joints that can move freely.  
   
イージーアーム(バーLED・カメラ・モニタ用)KA-N Easy arm (For bar LED, camera, monitor) KA-N

METHOD TO OBSERVING LARGE METAL

We sometimes receive requests to see on-site the composition of metal products that are too large to be cut out. In that case, we take the following two points into consideration and propose a custom-made product like the one in the photo below:
– Fixed magnification to reduce weight and cost. (Can be changed using the objective lens at the tip)

– Insert a cutout in the stand to directly observe the object.

大きな金属の場合の観察方法 大きな金属の場合の観察方法
Of course, coaxial illumination is used to observe the metal composition.
   
Small simple metallurgical microscope
KKKI-STD6-130DN
   
単眼式同軸測定顕微鏡 For a monocular coaxial measuring microscope like the one on the left.
Connect a camera to reduce weight

 

 

カメラはUSBタイプ、ハイビジョンタイプ等から選べます The camera is USB type, you can choose from high-definition types, etc.

HOW TO USE AN ULTRA HIGH MAGNIFICATION MICROSCOPE (NSH500CSU) USING TRANSMITTED LIGHTING

The NSH500CSU comes standard with a simple XY panel but does not support transmitted lighting, so we will cover how to install a transmitted lighting system.

 

◆Method 1
How to attach the rubber feet to the RD-95T and place it on the standard XY platform (TK100)

RD-95Tにゴム足を取付け、標準付属のXYステージ(TK100)に載せる方法

 

Light can be easily passed through without processing, but the size of the object is limited to the size (φ95) that can be placed on the RD-95T.

Because it has rubber feet, it will not slip, but the lamp body may move due to impacts such as being hit by your hand.

 

◆Method 2
How to switch to the XY turntable simply, remove the observation plate and install the RD-95T

 

回転式簡易XYステージに変更し、観察板を外しRD-95Tをはめ込む方法

 

Since the RD-95T can be mounted to the XY table, it can be fixed to some extent.
Since it is necessary to route the cable to the outside, it is necessary to drill a hole about φ10 in size in the base.
We can also drill holes for free before shipping.

 

 

For details on the products introduced this time, please see below.

超高倍率USB マイクロスコープ NSH500CSU

NSH500CSU ultra-high magnification USB microscope

   

 

 

 

回転式簡易XYテーブル TK180-K

Simple XY rotary table TK180-K

   

 

 

 

透過照明 RD-95T Transmitted lighting RD-95T

RECORDING DEVICE

There are many low-priced hard disk recorders on the market.
The following products come with a monitor, and the internal hard disk can be replaced with a commercially available size.
Long-term recording is possible for up to 2 months.
It has four video (NTSC) input terminals.

 

長時間動画を保存する機器

 

Also, if you can use a PC without using such equipment, you can record long videos by using a USB camera or GigE camera and long-term recording software.

 

 

UTILIZING THE LENGTH MEASUREMENT FUNCTION OF A MICROSCOPE FOR QUALITY CONTROL

In this article, we shall present the “Points to Consider,” “Usage Guidelines,” and “Recommended Microscopes” when utilizing the length measurement function of microscopes for quality control.

POINTS TO CONSIDER

While some microscopes have the capability to measure length, two operational issues may arise:

(1) The microscope itself is not a traceable measuring instrument.

(2) Calibration, except for some high-end models, must be performed by the user. (Errors may occur due to user operations.)

USAGE GUIDELINES

When used for quality control purposes, there is no issue with internal calibration. However, clarification is needed regarding the standards used in internal calibration. In other words, implementation is feasible if we can meet the following three conditions:

  • Using a microscope with reproducibility capability.
  • The reference device used to check the accuracy of the microscope is transparent.
  • Standards with traceable capabilities are available.

We have customers who have obtained ISO9001 certification and continue to use our products.

RECOMMENDED MICROSCOPES

When utilizing the length measurement function of microscopes for quality control, we recommend the following:

 

Microscope model CT200HD:

 

 

◆ Rare in the mid-range product line. Lens-camera interlocking system

The camera collects data from the lens and automatically utilizes the calibration data stored in the camera’s internal memory:

・ No adjustment required by end-users.

・ Values remain unchanged regardless of end-user operations.

◆ Providing special options with accurate measurement scale

May include calibration certificate and test results table for accurate measurement scale. (Charges)

 

校正証明書1   校正証明書2

 

 

 

Microscope model CT200HD:

 

  Microscope model CT200HD-H (Medium Magnification, Automatic Calibration).

 

寸法測定(自動校正)マイクロスコープ(高倍率) CT200HD-H  

Microscope model CT200HD-H (High Magnification, Automatic Calibration).

How to observe polarized light with a microscope

When conducting polarized observation, the efficacy is heightened by incorporating polarization filters on both the emitting and incident light sides. Subsequently, the polarization intensity is adjusted by rotating either of the polarization filters.

 

 

Our company’s microscopes, specifically the TG and FZ series, are equipped to facilitate polarized observations by directly affixing light-emitting diodes (LEDs) to the lens.

 

偏光観察

 

<When diminishing magnification by attaching an auxiliary lens>

Due to the concurrent placement of auxiliary lenses and incident-side filters, their simultaneous attachment is precluded.

 

補助レンズ装着時

 

 

In this scenario, the utilization of our LED Angle (LED-A2) enables polarized observations.

 

 

LEDアングル使用時

 

 

LEDアングル使用時

LEDs are affixed beneath the angle.

(Caution) The installation space for the angle cannot be secured unless the focal length is elongated. Consequently, it can only be utilized when employing auxiliary lenses to reduce magnification.

Regarding the New Year’s Day Closure for 2023-2024

Shodensha Vietnam extends its deepest gratitude for your unwavering cooperation and support. We seize this opportunity to express our heartfelt thanks and to inform you of the New Year’s closure schedule for Shodensha Vietnam as follows:

● Closure Period: January 1, 2024
● Business Resumption: January 2, 2024 (Tuesday)

 

We sincerely wish you a splendid New Year’s holiday and hope for your continued happiness and prosperity.

 

Yours faithfully,

ANNOUNCEMENT OF HOLIDAY SCHEDULE

Thank you so much for supporting Shodensha Vietnam. 

 

Shodensha Vietnam is pleased to announce our schedule of Vietnam ‘s National Day Holiday as follow: 

  • Holiday time: 1/9/2023 (FRI) ~ 4/9/2023 (MON) 
  • Business Operation: 5/9/2023 (TUE) ~  

 

 

We also announce Shodensha new office’s address:  Room 1505, F15, No.324, Tay Son Street, Nga Tu So Ward, Dong Da District, Hanoi City, Vietnam

 

Please notice that our service will not be available during Holiday time. 

Best regards. 

ANNOUNCEMENT OF HANOI OFFICE MOVEMENT

To all customers

 

First, Shodensha Vietnam Co., Ltd. would like to express our deep gratitude for the cooperation and support of our customers/partners for Shodensha Vietnam in the past time. We would like to inform you that our company will be relocating to a new office.

– New office address: Oriental Tower, Room 1505, F15, No.324, Tay Son Street, Nga Tu So Ward, Dong Da District, Hanoi City, Vietnam

– Office relocation date: 01/08/2023

 

The new office is designed to be modern and spacious, aiming to provide better services to our esteemed customers.

 

We will provide detailed information about the transition process in the upcoming days.

 

We appreciate your understanding and cooperation.

 

Sincerely,
Shodensha Vietnam Co.,Ltd

Temperature Screening Handheld Thermography DS-2TP31B-3AUF

●Without a laser pointer, you can safely measure body temperature.

●Inspection can be performed more than 1m away.

●It is set in a narrow range of 30 ° C to 45 ° C for body temperature measurement and can measure with high accuracy of ± 0.5 ° C

●You can quickly measure body temperature in real time.

 

※60 people can be inspected in 1 minute.
※This thermography is not a medical device.

 

Features

●Resolution:160×120

●Thermographic accuracy:±0.5℃
●2.4 inch LCD display with 320 x 240 resolution
●Built-in rechargeable lithium battery
●Can be used continuously for up to 8 hours

 

Function

Thermography: Real-time temperature detection and display on the screen.

Save: Equipped with a MicroSD card for saving captured images.

About the ports of the computer for connecting a USB 3.0 camera

USB 3.0 cameras that comply with the USB 3.0 standard exhibit high power delivery capabilities and communication speeds.

However, it is important to connect them to the correct ports on the computer to ensure proper functionality.

In this instance, I will provide information on the appropriate ports on the computer for connecting a USB 3.0 camera.

 

The USB port used when connecting a USB 3.0 camera

 

To utilize a USB 3.0 camera, it is essential to connect it to a USB port on your computer that supports USB 3.0 (or USB 3.1, USB 3.2) specifications.

 

If a USB 3.0 camera is connected to a USB 2.0 port, it will not function properly due to limitations in power delivery and communication speed.

 

■ Differences between USB 1.1, 2.0, and 3.0  

 

 

Specification

Maximum Data Transfer Speed

Power Delivery Capability

USB 1.1 12 Mbps 5V 100mA
USB 2.0 480 Mbps 5V 500mA
USB 3.2 Gen1 (USB 3.0) 5 Gbps 5V 900mA
USB 3.2 Gen2 10 Gbps 5V 900mA
USB 3.2 Gen2x2 20 Gbps 5V 900mA

 

※ USB 3.0 was renamed to USB 3.1 Gen1 in 2013, and then to USB 3.2 Gen1 in 2019.

 

As mentioned above, in terms of numbers, the maximum data transfer speed (communication speed) of USB 2.0 is 40 times faster than USB 1.1, while USB 3.0 is approximately 400 times faster than USB 1.1.

 

Check if a USB port is USB 3.0 on or not

 

There are three methods to check if a USB port is USB 3.0 on your computer:

【Method 1】Check the port color:
USB 3.0 ports are typically recommended to be colored blue, and in most cases, they are indeed blue.

 

 

 

USB3.0ポートの確認1

 

 

However, occasionally USB 3.0 ports may not be blue, and conversely, not all blue ports are necessarily USB 3.0.

In such cases, please refer to 【Method 2】 and 【Method 3】.

 

【Method 2】Check for symbol markings:

 

If you find a symbol marking near the USB port that includes “SS” (SuperSpeed), it indicates that the port is USB 3.0.

 

 

USB3.0ポートの確認2

 

However, there are cases where there may be no symbol markings.

If there are no markings, please refer to 【Method 3】.

 

 

【Method 3】Verify through Device Manager:
You can check the USB port specification by accessing the Device Manager on your computer.

(Device Manager > Universal Serial Bus controllers)

 

 

USB3.0ポートの確認3

 

※ The image shown is for Windows 10. Additionally, the types and number of ports may vary depending on your computer.  

 

When connecting a USB 3.0 camera to your computer, please be mindful of the following considerations:

 

 

As of 2023, the majority of commercially available computers are equipped with USB 3.0 ports.

However, some computers with multiple ports may have both “USB 3.0” and “USB 2.0” ports available.

 

 

USB3.0ポートの確認4

 

 

 

Please note the following when connecting a USB 3.0 camera to your computer:

 

– Ensure that you verify the USB ports on your computer before connecting the camera.
– Connect the camera directly to the computer without the use of intermediaries such as USB hubs.
– It is worth mentioning that certain hubs may result in insufficient power or compromised communication speed, potentially leading to operational irregularities.

 

 

Summary:

– A USB 3.0 camera is a camera that supports the USB 3.0 standard, offering higher power delivery capabilities and faster communication speeds.
– To ensure proper functionality, be sure to connect the USB 3.0 camera to a USB 3.0 (or USB 3.1, USB 3.2) port.