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Description
Optical Bench Simple TypeThe IEC Optical Bench is a low cost but very useful optical system that permits experiments in reflection, refraction, lenses and the creation of images. The bench is 1. 5m long with an adjustable metric scale. The comprehensive kit of parts includes convex and concave lenses, targets, large prism, prism table, various photographic slides, a white screen and sliding supports for components. The Optical Bench Simple Type is designed to be used with the
The IEC Optical Bench is a low-cost but very useful optical system that permits experiments in reflection, refraction, lenses and the creation of images. The bench is 1.5m long with an adjustable metric scale. The comprehensive kit of parts includes convex and concave lenses, targets, large prism, prism table, various photographic slides, a white screen and sliding supports for components.
The Optical Bench Simple Type is designed to be used with the Hodson Light Box as the light source and the lens and prism blocks from the Light Box kit can be used on the Optical Bench. The study of colours and shadows is performed from the mirror end of the light box and the study of light rays and the creation of images is performed from the front end of the light box.
Kit Includes:
- 1 x Aluminum Bench, 1.2M long with 1M scale fitted
- 1 x Plastic pillar to clamp to bench to support light source
- 1 x Platform (tapered shape) to support Hodson Light Box (presses tightly over plastic pillar clamped to bench)
- 3 x Tubular supports with circular clips for 50mm dia. lenses and mirrors (accepts circular lens/mirrors
- 4 x Tubular supports used for holding square plates and cards etc.
- 1 set Prism table, circular, with tubular support
- 4 x Square plates with center hole for lenses and devices
- 1 x White card screen
- 1 x Photographic slide of a 3mm dia. hole
- 1 x Photographic slide of a 5mm dia. hole
- 1 x Photographic slide of an 8mm dia. hole
- 1 x Photographic slide of the letter 'F'
- 1 x Photographic slide of a metric scale
- 1 x Photographic slide of circular targets (5 & 10mm dia.)
- 2 x Convex lens, 50mm dia. X 100mm focal length
- 2 x Convex lens, 50mm dia. X 200mm focal length
- 2 x Convex lens, 50mm dia. X 300mm focal length
- 1 x Concave lens, 50mm dia. X 100mm focal length
- 1 x Concave lens, 50mm dia. X 200mm focal length
- 1 x Concave lens, 50mm dia. X 300mm focal length
- 12 x Rubber bands for holding lenses and devices to the square plates
- 1 x Triangular prism
- 1 x Light Box Hodson Type (for SE.HL2240-001 only)
- 1 x Instruction sheet
| Dimensions: | 190mm (L) x 100mm (W) x 25mm (H) |
| Weight: | 0.15 kg |
| Product Code | Type | Manual |
| SE.HL2240-001 | With Hodson Light Box | See Here |
| SE.HL2241-001 | No Hodson Light Box | See Here |
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4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Short, shot in the Arm
Format: Kindle
While not extensive, Powlison's, "The Pastor as Counselor," didn't need to be. In all likelihood, a pastor trying to exercise his office such that he would pick up a book like this doesn't have a lot of time for extended works, so this little booklet is a good B-12 shot in the heart reminder to what pastors are and what we're called to do: counsel. It's worth the thirty minutes or so, for your sake and your people's.
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Reviewed in the United States on February 10, 2022
★★★★★ 5
Condensed Wisdom From One Who Was Wise
Format: Kindle
Wonderful refresher course in the responsibilities, opportunities. and necessity of Pastoral Counseling. Quotations and Book Recommendations alone are worth the price of the book.
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Reviewed in the United States on July 20, 2021
★★★★★ 1
Dangerously deluded ideas about mental health
Format: Paperback
This book wants to convince the reader (presumably a pastor or religious leader of some variation) that as a christian they possess special powers that are the only true way to help people struggling with life, mental health, meaning, etc..
It repeatedly attacks mental health professionals as being incapable of addressing the real problems people face, while reinforcing pastors with the deluded belief that they alone hold the answers that others need in a counseling situation. Never mind that some of these mental health professionals he disparages have spent 4, 8, even 12+ years studying their subjects to become experts capable of giving the best possible, science-based mental health support. It suggests that you, as the reader, with a theology degree (perhaps not even that, maybe you are simply a volunteer in a church youth group or other church program) hold greater qualifications to address the real problems people are facing. Trying to setup a dichotomy of "christian counseling" vs "secular mental health professionals" also neglects the fact that many of these "secular professionals" are believing christians themselves, who know there is a time and place for everything and injecting religion isn't always the appropriate response.
Of course many pastors & religious leaders have genuinely helped people's lives and well being (in addition to many who are doing the opposite..) But to suggest that the real professionals who devote their lives to these subjects have nothing of value to offer people struggling, while simultaneously empowering the reader with the idea that they possess some secret knowledge despite having no expertise, is a dangerous precedent.
A more balanced approach might say that religious leaders of all stripes can have a role to play in counseling & mental health, while also having the humility to realize the limitations of being a non-expert. At the same time there are experts who also have a place in helping people with these issues, and it doesn't need to be some sort of competition as he frames it. People of all religions, cultures, and backgrounds have benefitted from both a scientific approach the author attempts to criticize, and from the christian centered approach he endorses.
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Reviewed in the United States on December 12, 2024
★★★★★ 5
This is a great book on discipleship!
Format: Paperback
"Mapping Discipleship" offers readers heart-provoking questions that enable them to perform a self-assessment in each chapter. While I was reading this, I was continuously challenged by the simple Biblical truths and purposeful questions that revealed my heart. Charlie Carter's book works as a compass and a map (in a spiritual sense) that will have you ask yourself: "Where am I at in my spiritual life? What is my current direction? Am I yielding to the Holy Spirit, or am I trying to figure it out on my own?" Carter's book is practical and applicable to everyday life. When you read this book, it's as if Carter were discipling you in a one-on-one setting in a personable yet gentle manner with the hope of encouraging you to disciple others upon completing the 12-chapter session. This book is one that I will go back to regularly!
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Reviewed in the United States on November 8, 2025
★★★★★ 5
Straightforward and biblical
Format: Paperback
This book is clear and compelling in its straightforward and biblical approach to discipleship.
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Reviewed in the United States on December 1, 2025