“SUITABLE MICROSCOPES” AND “UNSUITABLE MICROSCOPES” FOR DIMENSION MEASUREMENT

Many microscopes on the market have a size measurement function. However, some types are still difficult to use. When using the measuring function, a microscope can be said to be suitable for measuring dimensions if it has the following two characteristics:

(1) Zoom lens.

(2) Latching function.

Below we will introduce each characteristics in detail.

(1) Zoom lens:

There are two types of lenses that can continuously change magnification:

  • “Variable magnification lenses” are not suitable for measuring because the focal length changes significantly when magnification is changed.
  • “Zoom lens” are suitable for measuring because the focal length remains almost the same even when magnification is changed.
(Maximum magnifiaction)  

(Minimum magnifiaction)

寸法測定に向き・不向きマイクルスコープ01   寸法測定に向き・不向きマイクルスコープ02

<Suitable for measurement> Zoom lenses (except our SG series)

(Maximum magnifiaction)   (Minimum magnification)
寸法測定に向き・不向きマイクルスコープ03   寸法測定に向き・不向きマイクルスコープ04

(2) Latching function:

When measuring dimensions, the ability to reproduce conditions is important. If the optical magnification (scale) is marked on the lens and each scale has a latching function, inter-operator variation is eliminated and reproducibility is maintained.

 

<Not suitable for measurement> Products without latching function

 

Low-cost microscope series (sG series)

 

Low magnification microscope (LRS series)

High magnification microscope (LRA series)

寸法測定に向き・不向きマイクルスコープ05   寸法測定に向き・不向きマイクルスコープ06

 

<Suitable for measurement> All other product lines have latching function.

寸法測定に向き・不向きマイクルスコープ07

 

(Note) If you want to measure with a low magnification microscope as mentioned, our “low magnification microscope” (LRS series) is not suitable for size measurement (Because reproducibility cannot be achieved). Although the magnification cannot be lowered with the LRS series, if you attach the “0.5x auxiliary lens” to the TG series, it can be used as a low magnification microscope for reproduction.

 

TG series   Auxiliary lens on 0.5X
USBマイクロスコープ 寸法測定に向き・不向きマイクルスコープ09

Microscope TG500CS

 

 

Auxiliary lens on 0.5X

Although the TG series could not achieve as low magnification as the LRS series, it can maintain a field of view as wide with two dimes and perform highly reproducible measurements.

 

寸法測定に向き・不向きマイクルスコープ10

 

 

LONG-RANGE (EXTENDED WORKING DISTANCE) MICROSCOPE

We occasionally receive requests expressing the desire to increase magnification with an extended working distance.

Typically, increasing magnification results in a shorter focal length.

Allow me to present options classified under the category of long-range types.

 

■ Long-Range (Extended Working Distance) Microscope (LRA Series)

 

Our extended working distance microscope not only incorporates a 10x zoom function but also achieves an extended working distance seamlessly.

The focal length can be adjusted freely within the range of 200 mm to 400 mm.

 

長距離(長作動)マイクロスコープ (LRAシリーズ)

 

(1) The field of view at maximum magnification when the focal length is set to 250 mm.

 

In the horizontal direction, it measures 6.7 mm, equivalent to an approximate magnification of 70 times.

 

焦点距離を250mmに設定した時の最大倍率時の視野

 

高機能長距離ハイビジョン マイクロスコープ
(スタンドタイプ)LRA200XM-S

High-performance Long-distance High-Definition Microscope (Stand type)

LRA200XM-S

 

 

(2) Resolution at Maximum Magnification with a Focal Length Set to 250 mm

 

The resolution, as reflected by a glass scale used for resolution checks, is as follows.

 

焦点距離を250mmに設定した時の最大倍率時の解像度

 

(3) Advantages and Disadvantages

 

While the presence of a 10x zoom function and the ability to vary magnification at the same distance represent significant advantages, there is a slight reduction in resolution.

The field of view at maximum magnification with a focal length set to 250mm→400mm is as follows.

 

メリットとデメリット

 

 

■ ƒ=75mm Fixed-Focus Lens Application

 

By adding a 2x rear converter and a 15mm close-up ring to a 75mm telephoto lens, it can serve as an alternative to the Long-Working Distance Microscope (LRA series).

 

f=75mm 固定焦点レンズの応用

 

(1) Field of View when the focal length is set to 250mm

Without a zoom function, once the focal length is decided, the magnification is determined. The horizontal field of view is 8mm, resulting in approximately 60x magnification.

 

焦点距離を250mmに設定した時の視野

 

 

(2) Resolution at maximum magnification when the focal length is set to 250mm

 

When projecting a glass scale for resolution checks, it appears as follows.

 

焦点距離を250mmに設定した時の最大倍率時の解像度

 

 

(3) Pros and Cons

 

While the focal length can be adjusted, once determined, it fixes the magnification as well. Without a zoom function, the lens has fewer elements, resulting in a brighter image and higher resolution compared to the aforementioned Long-Working Distance Microscope (LRA series).

In a direct comparison at maximum magnification, it slightly falls short compared to the Long-Working Distance Microscope (LRA series). The price is lower due to the absence of a zoom function.

When the focal length is set to 250mm→400mm, the field of view is as follows.

 

メリットとデメリット

 

 

■ High-Resolution, High-Magnification Zoom Lens

 

There are specialized lenses with high resolution, high magnification, and zoom functionality available through our products. For more details, please inquire.

It is capable of achieving 420x magnification at a focal length of 200mm.

 

高解像度・高倍率ズームレンズ

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.

METHODS FOR EMPLOYING HIGH-MAGNIFICATION MICROSCOPES AT EXTENDED DISTANCES

Introducing Approaches to Achieve High Magnification Levels Beyond 200x with a Focal Length of Over 100mm.

 

Fixed Magnification Macro Lenses

 

 

固定倍率のマクロレンズ

 

 

 High Magnification Zoom Lenses

 

・Our NSH lenses feature specialized objectives, providing 2x or 5x.

 

高倍率・ズームレンズ

 

オプション 2倍対物レンズ

Option: 2X Objective Lens QM Plan Apo L2 (2X)

 

Option: 5X Objective Lens QM Plan Apo HL (5X)

 

Magnification, constituting high-magnification, high-resolution zoom lenses.

 

This is an exceptionally unique lens.
Achieving high magnification and long working distances while ensuring elevated resolution.

 

 

高倍率・高解像度・ズームレンズ

 

 

f=100mm yields 900x magnification

f=200mm provides 420x magnification

マイクロスコープと実体顕微鏡の違い

実体顕微鏡とマイクロスコープにはそれぞれ、メリット、デメリットがあります。
それぞれの特徴を理解して使い分ける必要があります。

 

本来、実体顕微鏡も英語で表記すれば、マイクロスコープとなります。
業界によっては、顕微鏡をマイクロスコープと呼ぶ場合もありますが、今回は単眼のデジタルマイクロスコープをマイクロスコープとしてご説明します。

 

目次

1. 特徴の違い

2. 倍率の違い

3. 主な用途の違い

 

 

 

1. 特徴の違い

・実体顕微鏡の特徴

大きな違いは、実体顕微鏡は2光路設計になっていることです。
右と左で独立した光路となります。

 

2光路設計

 

右と左で視野も異なります。
下記のコインを立てて、実体顕微鏡で観察すると

 

コイン

 

コイン

 

この異なった視野を観察者が一つの映像として観察します。
人間の目が2つあるのと同じです。

 

これによるメリットは、対象物が立体的に見えます。
遠近感もわかるので、加工作業をされる方は実体顕微鏡が必要です。
デメリットとして、使う時に少しコツが必要です。
(初めて使う方は、映像が1つにならず、戸惑うと思います。)

 

3眼式の実体顕微鏡の場合、カメラポートは左右どちらかの映像となります。
(映像も斜視となります。)

 

デメリットとしては、高倍率の観察ができません。
(製造時に左右の微妙な調整が必要な為です。)
倍率は比較的低倍率となります。ズーム比もそれ程大きくありません。
汎用的なもので、10~50倍程度、高倍率タイプでも100倍程度が実体顕微鏡の限界となります。

 

また、長時間の作業では作業者のストレスが大きくなります。
目幅調整、視度調整 等、観察者個人ごとの調整が必要です。

 

左右で視野が異なるので、正確な位置決め、2次元の寸法測定には不向きです。
上記の用途で顕微鏡を使う場合は、単眼顕微鏡を使います。

 

単眼顕微鏡

 

 

・マイクロスコープの特徴

基本的には単眼レンズとなります。

 

マイクロスコープ

 

人間が片目で物を視る時と同じで、遠近感はわかりにくいという欠点があります。
上記のコインであれば、レンズ中心部では下記のように見えます。

 

コイン

 

豊富なレンズから選べるので、低倍率から高倍率(2000倍超えまで)まで対応できます。
また、モニタ観察になるので、初めての方でも簡単に観察でき、疲れにくく、長時間の観察(検査)に向いています。

 

真上からの観察(直視)なので、位置決めや寸法測定にも向いています。
PCとの親和性もよく、映像の保存・画像処理・焦点合成 等 様々なソフトウエアが使えます。

 

 

 

 

2. 倍率の違い

実体顕微鏡とマイクロスコープの倍率は単純に比較ができません。
実体顕微鏡は目で確認するのに対して、マイクロスコープはモニタで観察します。

その時にモニタ倍率を含んでしまいます。

 

倍率での単純比較はできませんが、観察視野で比較すると単純な比較ができます。

 

例えば、
顕微鏡の観察視野は視野数で計算します。
視野数20の顕微鏡の場合、10倍時に直径20mmの視野になります。

YM0745-L-2023カタログ切り抜き

 

上記の実態顕微鏡と同じ視野を観察したい場合、下記のマイクロスコープであれば20倍になります。

(実体顕微鏡では10倍になります。)

TG200BA-2023カタログ切り抜き

 

また、マイクロスコープの場合は、モニタサイズで変わってしまいます。

詳細は、下記の記事をご覧ください。

 

 

  マイクロスコープの倍率と顕微鏡の倍率の違い

 

 

 

 

 

 

3. 主な用途の違い

・実体顕微鏡向きの用途
 取付け、加工、立体物の検査・観察 等

 

・マイクロスコープ向きの用途
 外観検査、正確な位置決め(芯出し 等)、凹凸の無い寸法測定 等

 

 

 

4. 松電舎のマイクロスコープ

松電舎ではお客様の用途に合わせ、USBマイクロスコープ、4Kマイクロスコープ、ハイビジョンマイクロスコープなどを取り揃えております。用途、倍率、接続方式などに合わせ、各種お選びいただけます。

 

USBマイクロスコープ

USBマイクロスコープ

4Kマイクロスコープ 4K860PT

4Kマイクロスコープ

ハイビジョンマイクロスコープ

ハイビジョンマイクロスコープ

 

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,

LOW-COST HIGH SPEED CAMERA CHU135-C-RS / CHU135-B-RS (COLOR/MONOCHROME)

A versatile 1.3-megapixel type, suitable for various scenarios, is now available at a low price.

– Enhance the convenience of high-speed cameras with two included software applications!
– High-speed cameras available at an ultra-low price starting from the 300,000 yen range.
– Effective pixel count of 1280×1024 resolution at 200fps (frames per second), and at 224×224 resolution, the maximum speed reaches 2300fps.
– Abundant options for resolution and frame rate selection.
* Note: Lenses are required separately.

Low-cost GigE high-speed camera (color/monochrome) CHG40-C-RS/B-RS

It can be used in remote locations that were not possible with USB types. The cable can be extended up to 100m!

 

●The cable can be extended up to 100m, which is not possible with USB types!

●Two types of software are included as standard!!
 ・SpeedCapture allows you to record and check the time before and after the trigger

 ・REAL Slow allows you to observe in slow motion without recording

●High-speed cameras at ultra-low prices

●300 fps (frames per second) at a resolution of 640 x 480 (VGA) effective pixels, or up to 800 fps (frames per second) at a resolution of 240 x 180

●Lenses are required separately.

THE DIFFERENCE BETWEEN AN ELECTRON MICROSCOPE AND A STEREOMICROSCOPE

Electron microscopes and stereomicroscopes each carry their own unique benefits and drawbacks. Understanding the specific characteristics of each type is important to use them flexibly.

 

In general, if expressed in English, both can be called “microscopes”. Although in industry there are instances when microscopes are referred to as microscopes, in this case we will explain “microscopes” in terms of single-eyehole digital display machines.

 1. Difference in Characteristics

・Features of Physical Optical Microscopy:

One big difference is that the Entity Optical Microscope is designed with two independent optical systems, creating two independent light paths on the right and left.

 

2光路設計

 

When observing with a physical Optical Microscope, the viewing range from right and left will be different. If you place a coin as follows to observe:

 

コイン

 

コイン

 

When observing, the observer will see both different visions as a single image, similar to how humans have two eyes.

 

The benefit of this is that the object will look like a real space. You can also understand the feeling of near and far, so people doing processing work often need to use Physical Optical Microscopy. The downside is that it requires a bit of technique when using (first-time users may feel strange about the unnatural image).

 

In the case of a Trinocular Optical Microscope, the camera port will contain an image from one side, either the right or left side (the image will also have a tilt effect).

 

Another disadvantage is the inability to observe at high magnification (due to the need for delicate adjustment between the right and left sides during manufacturing). The magnification is usually low and the magnification ratio is not large. Normally, even for general types, magnification is only 10 to 50 times, and in high-end cases, only about 100 times is the limit of physical Optical Microscopy.

 

Furthermore, in long-term work, workers can experience a lot of pressure. Eye widening, vision correction, and personal adjustments by the observer are necessary.

 

Because the field of vision is different between right and left, it is not suitable for precise positioning and two-dimensional measurement. In the above applications, people often use monocular microscopes.

 

単眼顕微鏡

 

 

・Features of Microscope:

Basically, it mainly uses single lens.

マイクロスコープ

 

Just like when people look at objects with one eye, this has the disadvantage of making it difficult to perceive near and far. In the case of the coin mentioned above, when viewed from the center of the lens, the image will look like this:

 

コイン

 

Because it is possible to choose from a variety of lenses, the microscope can accommodate from low to high magnification (exceeding 2000x).

 

Furthermore, with on-screen observation, even new users can easily observe without causing fatigue, suitable for long-term observation (inspection).

Due to the frontal view (upward angle), it is also suitable for locating and measuring dimensions. It is compatible with computers and can use a variety of software such as image storage, image processing, focus fusion, and many other features.

 

2. Difference in Magnification

Magnification between Physical Optical Microscopy and Microscopy cannot be directly compared. While Optical Microscopy is visually confirmed, Microscopy is observed on a screen.

 

At that time, the magnification of the screen must be taken into account.

Although a direct comparison of magnification is not possible, if the comparison is based on the field of observation, a simple difference can be seen.

 

For example, the field of view of a microscope is calculated by the number of fields. For a microscope with 20 fields, when magnified to 10 times, the field of view will have a diameter of 20 mm.

YM0745-L-2023カタログ切り抜き

 

If one wants to observe the same field as in the mentioned physical Optical Microscopy, with the Microscope below, the magnification will be 20 times.

 

(Meanwhile, in Organic Optical Microscopy, the magnification is only 10 times.)

TG200BA-2023カタログ切り抜き

 

Furthermore, in the case of a Microscope, the magnification will vary according to the screen size.

 

For details, see the article below.

 

3. Differences in Primary Applications

・Physical Optical Microscopy is suitable for applications such as:

Installation, machining, physical object inspection/observation, etc.

 

・The microscope is suitable for applications such as:
Check appearance, determine precise positioning (such as shaft placement), measure dimensions without surface deviation, etc.

 

 

4. Shodensha’s microscope

At Shodensha, we have arranged microscopes such as USB Microscope, 4K Microscope, High Definition Microscope, and many more options to suit the needs of our customers. Depending on the purpose of use, magnification, connection method, we provide many choices for you.

 

USBマイクロスコープ

Microscope USB

 

4Kマイクロスコープ 4K860PT

Microscope 4K

 

ハイビジョンマイクロスコープ

Microscope Full-HD

 

φ4.0mm Wideangle Borescope ME.40175.00100

●The wide-angle objective lens allows accurate observation of the entire image even with a small diameter.

●It allows non-destructive visual inspection of the inside of narrow parts that cannot be reached directly by the human eye.

●Compatible with various lighting of M10 P=0.5 and M8 P=0.5

●φ4.0mm: Effective length 175mm/viewing direction 0°/viewing angle 100°

φ2.7mm Wideangle Borescope ME.27120.0085

●The wide-angle objective lens allows accurate observation of the entire image even with a small diameter.

●It allows non-destructive visual inspection of the inside of narrow parts that cannot be reached directly by the human eye.

●Compatible with various lighting such as M10 P=0.5 and M8 P=0.5.

●φ2.7mm: Effective length 110mm/viewing direction 0°/viewing angle 95°

Heat resistant borescope

●Can be used in environments with ambient temperatures up to 1600°C

●New rod lens for bright, clear images

●Compatible with USB cameras, GigE cameras, high-definition cameras, etc.

 

*Since this is a custom made product, there are no demo units available.

*Test shooting is possible if we receive a sample of the product.

Ultra-thin fiberscope MO.080500.0070

●0.8mm ultra-thin flexible fiberscope

●Image transmission via optical fiber

●Can be inserted into curved pipe structures and complex shapes

●Can perform non-destructive visual inspection of the inside of narrow parts that cannot be directly reached by the human eye.

*Peripheral equipment such as a light source is required depending on the application.

High-sensitivity HD camera for borescopes BA200HD

When observing in complete darkness with strong light from one direction, a normal camera can cause problems such as:

 

1. Dark

2. Bright and dark areas are emphasized

 

To solve these problems, we have developed an original camera specifically for borescopes that has high sensitivity and a wide dynamic range.

 

Tripod adapter sold separately

A recorder (optional) for saving still images and videos is also available.

*Monitor not included.

High vision camera system for Borescope BBA200LT

Just connect the borescope and you can start shooting right away!
High-definition camera system directly connected to a monitor

 

This shooting set comes with an original camera made specifically for borescopes, which has high sensitivity and a wide dynamic range.
Borescope and monitor are not included.
*A monitor can also be arranged upon request.

 

 

A recorder (optional) for saving still images and videos is also available.

*Monitor not included.

USB camera system for Borescope BCS130LT

Once you connect the borescope, you can start shooting right away!
USB camera system for connecting to a PC

 

A shooting set that comes with a USB camera that allows you to directly import observed images to a PC.
Borescope and PC are sold separately.
*A PC can also be provided upon request.

A recorder (optional) for saving still images and videos is also available.

*A monitor is not included.

High Vision Microscope TG200MU

LOW-COST High Vision Microscope !

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

4K Microscope (coaxial lighting type) Z4K1200CSLT

4 times higher definition than Full HD
Images equivalent to high-end microscopes at reasonable price!

 

● Equipped with high-resolution 4K lens

● Equipped with 12MP high-definition camera

● Magnification: 23x ~ 230x
(* Magnification is a calculated value converted to a 17-inch monitor)

● Ideal for observation of highly reflective flat surfaces close to mirror surfaces with coaxial lighting type (polished metals, plating, silicon wafers, observation of welding penetration, etc.)!

● Available with abundant software such as measurement, focus stacking, and image linking software 

● Can also develop software according to the customer’s request

* The stand can be changed to a small stand.

4K Microscope 4K1200CS

4 times higher definition than Full HD
Images equivalent to high-end microscopes at reasonable price!

 

● 4K Microscope

● Equipped with high-resolution 4K lens

● Equipped with 12MP high-definition camera

● Magnification: 23x ~ 230x
(* Magnification is a calculated value converted to a 17-inch monitor)

● Equipped with simplified measurement software that can measure the distance between two points

● Available with abundant software such as measurement, focus stacking, and image linking software 

● Can also develop software according to the customer’s request

* The stand can be changed to a small stand.

4K Microscope (coaxial lighting type) Z4K860PTLT

4 times higher definition than Full HD
Images equivalent to high-end microscopes at reasonable price!

 

• 4K Microscope

• Equipped with high-resolution 4K lens

• Equipped with a multi-function 4K camera

• Magnification: 26x~260x (* Magnification is a calculated value converted to a 17 inch monitor)

• Full HD resolution even with digital zoom (X2)

• Ideal for observation of highly reflective flat surfaces close to mirror surfaces with coaxial lighting type (polished metals, plating, silicon wafers, observation of welding penetration, etc.)!

* The stand can be changed to a small stand

* Require a separate 4K monitor

4K Microscope 4K860PT

4 times higher definition than Full HD
Images equivalent to high-end microscopes at reasonable price!

 

• 4K Microscope

• Equipped with high-resolution 4K lens

• Equipped with a multi-function 4K camera

• In addition, digital zoom up to 10x

Magnification: 26x~260x (* Magnification is a calculated value converted to a 17 inch monitor)

* The stand can be changed to a small stand.

2023 LUNAR NEW YEAR HOLIDAY

 

Shodensha Vietnam is pleased to announce our schedule of Tet Holiday as follow:

 

– Our office will be closed from Friday, 20th January 2023 to Sunday, 29th January 2023

 

– Business operation will resume as normal on Friday, 27th January 2023

 

We would like to take this opportunity to thank you for your continuous support.

2022-2023 NEW YEAR HOLIDAY

 

Shodensha Vietnam is pleased to announce our schedule of New Year

Holiday as follow:

 

– Our office will be closed from Saturday, 31st December 2022 to Monday, 02nd January 2023

 

– Business operation will resume as normal on Tuesday, 03rd January 2023

 

We would like to take this opportunity to thank you for your continuous support.

High speed Camera CHU130EX

Easy connection with USB 3.0 bus power operation!

 

●USB 3.0 bus power operation for easy connection

●200 frames/sec in full frame, 800 frames/sec in VGA size, maximum 4000 frames/sec

●Small and lightweight, yet equipped with built-in memory

●Hybrid model with built-in memory recording/DMA transfer

●Lens required separately.

*Color type also available. Please contact us for details.